HomeMy WebLinkAboutWPO202000034 VSMP - SWPPP 2020-11-04BELVEDERE PHASE 5
STORMWATER POLLUTION PREVENTION PLAN
And
POLLUTION PREVENTION PLAN
ALBEMARLE COUNTY
June 11, 2020
Last Revised: November 4, 2020
Project Name: BELVEDERE PHASE 5
Owner/Operator: NEW BELVEDERE INC.
Steve Krohn
610 West Rio Road
Charlottesville, VA 22901
434-242-6122
Project Location: Latitude 38.075302
Longitude-78.452311
APPROVED
by the Albemarle County
Community Development Department
Date: 11 /04/20
File: VVP0202000034
Located in the Belvedere Subdivision,
Off to the Southeast of Farrow Dr.
County of Albemarle, Virginia
(See USGS General Location Maps on following pages)
Description: (Purpose and Type of Soil Disturbing Activities)
The project consists of the construction of 38 attached townhouse units and 5 single
family detached units, roadways and supporting utility infrastructure for the first phase of
Belvedere Phase 5A. The second stage of construction, known as Phase 5B, proposes 19
single family detached units.
Soil disturbing activities will include: installing erosion and sediment control devices,
grading, fine excavation for construction of buildings and preparation for final
stabilization and seeding.
No industrial activities are proposed for this site.
Project Start Date: November 9, 2020
Anticipated Project Completion Date: May 31, 2024
CONTENTS PAGE
General Location Maps....................................................................... 4-6
ContactInformation........................................................................... 7
General Site Information.......................................................................
8
Sequence of Major Activities................................................................
8-9
Name of Receiving Waters...................................................................
9
Special Conditions Related to TMDLs.....................................................
9
Historic Districts...............................................................................
10
Endangered and Threatened Species and Critical Habitat Protection ....................
10
Erosion and Sediment Controls..............................................................
10
Stabilization Practices..........................................................................
10-13
Structural Practices............................................................................
14
Vegetative Practices...........................................................................
14
Stornwater Management.....................................................................
14
WasteMaterials................................................................................
14
HazardousWaste..............................................................................
14
SanitaryWaste.................................................................................
15
Offsite Vehicle Tracking.....................................................................
15
Timing of Controls and Measures...........................................................
15
Certification of Compliance with Federal, State and Local Requirements............
15
Maintenance and Inspection Procedures ...................................................
15-16
Recordkeeping.................................................................................
16-17
I. Corrective Action and Forms .....................................................
16
H. Grading and Stabilization Activities Log ......................................
16
III. Rainfall Tracking................................................................
17
IV. Log of Changes to the SWPPP.................................................
17
Comprehensive Site Compliance Evaluation- Post Construction .......................
17
Non-Stormwater Discharges.................................................................
17
Pollution Prevention Plan ....................................................................
18-21
I. Inventory for Pollution Prevention Plan ........................................
18-19
II. Material Management Practices ................................................
19
IN. Hazardous Products..............................................................
20
IV. Product Specific Practices......................................................
20-21
V. Spills and Leaks...................................................................
21
VI. Spill Control Practices..........................................................
22
VII. Spill Procedure..................................................................
22
2
Pollution Prevention Certification........................................................... 23
Appendices..................................................................................... 24
Appx A- Site Maps/Construction Plans (including ESC, PPP & SWM)
Appx B- Copy of Construction General Permit
Appx C- VSMP Registration Statement and Notice of Coverage
Appx D- Delegation of Authority
Appx E- Inspection Reports and Precipitation Log
Appx F- Grading and Stabilization Log
Appx G- Log of Changes and Update to SWPPP
Appx H- Contractor/Subcontractor Certification and Agreements
Appx I- Factsheets, Additional Information, Spill Reports
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Contact Information
Project AG Dillard
Construction Attn. DJ Banton
Manager: 295 Memory Ln.
Troy, VA 22974
434-977-3750
dj(a,agdillard.com
RLD: DJ Banton; RLD07934
Responsible for construction and final stabilization of facility.
Project Roudabush, Gale & Associates, Inc.
Designer: Riki Van-Niekerk
999 2nd St. Se. Suite 201
Charlottesville, VA 22902
434-977-0205
riki@roudabush.com
Responsible for site plan, erosion control and stormwater
management plan preparation and design.
SWPPP Roudabush, Gale, & Associates
Preparer and 999 2°d St. SE Suite 201
Contact: Charlottesville, Virginia 22902
434-977-0205
Responsible for preparation of the S WPPP/PPP and inspections.
Pollution Prevention Team:
The pollution prevention team is responsible for assisting the facility in developing, implementing,
maintaining, and revising the facility's SWPPP. Below are the qualified personnel for the site.
Jim Taggart
Licensed Professional Engineer, No.22841
Riki Van-Niekerk
EIT
Nicole Jamison
B.S. Natural Resource Management, RLD05933 & DIN 1114
Alease Shiflett
RLD12733
Kent Raine
RLD 16152
To contact any member of the Pollution Prevention Team, call Roudabush, Gale, and
Associates at 434-977-0205
SWPPP Availability: The Stonnwater Pollution Prevention Plan, a copy of the VPDES permit, construction
plans, and other materials referenced in this plan shall be retained at the project location.
The SWPPP can be found at the intersection of Farrow Dr. and Shelton Street. Contact
Roudabush, Gale, and Associates at 434-977-0205 with questions.
General Site Information
Purpose: The purpose of the land -disturbing activity is to create 38 attached townhouse units, 5
single family detached units, and supporting utility infrastructure for the first phase of
Belvedere -Adams know as Belvedere Phase 5A. The second stage of construction,
known as 5B proposes 19 single family detached units.
Runoff Coefficient: The final coefficient of runoff is provided in the " Stonnwater Management Plan"
included in this SWPPP in Appendix A.
Site Area: The total permitted site area is 15.00 acres and the estimated area to be disturbed is 14.46
acres which includes the fire access road across TMP's 062GO-00-07-OOOEO,
06100-00-00-160R5, and 06100-00-00-160R7.
Site Map: A site map/vicinity map is provided on pages 4-6.
Description of The site consists of moderate tree cover with virgin soil terrain. The property is bounded
Existing by a creek to the north which separates it from Belvedere Phase 3, Belvedere Phase 2B to
Site Conditions: the northwest and Dunlora Farm to the southwest and southeast.
Adjacent Areas: Belvedere Phase 3 and Phase 2B lie to the northwest and Dunlora Farm lies to the
southwest and southeast.
Offsite Land All excess material generated as part of the project shall be hauled to a location within
Disturbance: Belvedere's Phase IIB permit VAR10K606, WPO201600071.
Sequence of Maior Activities:
1. After obtaining all required permits the contractor shall coordinate a pre -construction meeting, allowing
72 hours for its coordination.
2. Install construction entrance at site entrance on Fowler Street.
3. Clearing and grubbing shall first be limited to the areas necessary to install silt fence, tree protection and
other perimeter controls. Safety fence shall be installed if deemed necessary by the erosion control
inspector. Perimeter controls must be made functional prior to any upslope land disturbance that takes
place.
4. Prior to additional clearing and grubbing, the contractor shall coordinate inspections as required by the
County of Albemarle.
5. Clear and grub the remainder of project area.
6. Stockpile topsoil within an area on the property owned by Belvedere at a location approved by
Albemarle County Community Development. Install silt fence at the perimeter of stockpile(s).
7. Denuded areas shall drain to an approved erosion control measures at all times during construction.
8. Contractor shall coordinate inspections, as required by the Albemarle County Service Authority, prior to
making the sewer system operational.
9. Permanent or temporary soil stabilization shall be applied to all denuded areas within seven days after
final grade is reached on any portion of the site. Temporary soil stabilization shall be applied within
seven days to denuded areas that may not be a final grade but will remain dormant for longer than 30
days. Permanent stabilization shall be applied to areas that are left dormant for more than one year.
10. Lime, fertilize and apply temporary or permanent seeding to all denuded areas immediately after
achieving final grades.
11. All permanent slopes steeper than 3:1 shall receive stabilization with landscaping vegetation hardier
than grass, which will not require mowing.
12. After site is stabilized and permission is obtained from the erosion control inspector, remove silt fencing
and other remaining erosion control measures.
Name of Receiving Waters:
Rivanna River -Meadow Creek (JRI4 (HUCO20802040401))
South Fork Rivanna River (JR08 (HUCO20802040203))
DEQ staff has determined that the proposed land -disturbing activity will discharge to a surface water identified
as impaired or for which a TMDL wasteload allocation has been established and approved prior to the term of
the general permit for (i) sediment or a sediment -related parameter or (ii) nutrients. Therefore, the following
general permit (Part I.B.4) and SWPPP requirements (Part ILA.5) must be implemented for the land -disturbing
activity:
• Permanent or temporary soil stabilization shall be applied to denuded areas within seven (7) days after
final grade is reached on any portion of the site.
• Nutrients (e.g. fertilizers) shall be applied in accordance with manufacturer's recommendations or an
approved nutrient management plan and shall not be applied during rainfall events.
• Inspections shall be conducted at a frequency of (i) at least once every four (4) business days or (ii) at
least once every five (5) business days and no later than 24 hours following a measurable storm event. In
the event that a measurable storm event occurs when there are more than 24 hours between business
days, the inspection shall be conducted on the next business day.
• Representative inspections used by utility line installation, pipeline construction, or other similar linear
construction activities shall inspect all outfalls.
Special Conditions Related to TMDLs:
For additional information on TMDLs please visit:
1) https://www.albemarle.org/upload/imgges/forms center/departments/Water Resources/forms/Albemarle
_County_Local _TMDL_Action _Plan _2016. pdf
2) bUps://www.albemarle.org/upload/images/forms center/departments/Water Resources/forms/Albemarle
_Chesapeake _Bay _TMDL Action Plan.pdf
3) https://www.albemarle.org/upload/images/forms center/departments/Water Resources/forms/Existing
and New Sources.pdf
Historic Districts
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The image (above) is compiled from information obtained from the Virginia Department of Historic Resources
(DHR). Properties that are located within historic districts may be subject to certain development restrictions
which can be found at: http://www.dhr.virginia.gov/. Green shaded regions depict the known historic districts
that exist within Albemarle County near the Belvedere Subdivision. There are no known historic districts
located within the Belvedere Phase 5 limits of disturbance at this time (outlined in yellow above).
Endangered and Threatened Species and Critical Habitat Protection
The United States Fish & Wildlife Service has identified species that are believed to or known to occur in
Virginia. The list can be found on their Environmental Conservation Online System at:
http://ecos.fws. gov/ecpO/reports/species-listed-by-state-report?state=VA&status=listed
There are no known endangered or threatened species located within the Belvedere Phase 5 limits of
disturbance at this time.
Erosion and Sediment Controls:
Approved erosion and sediment control plans for Belvedere Phase 5 are incorporated by reference as part of this
Stonnwater Pollution Prevention Plan. Approved plans are included in this SWPPP binder- see appendix A.
Stabilization Practices:
The purpose of the erosion control measures shown on these plans shall be to preclude the transport of
all waterborne sediments resulting from construction activities from entering onto adjacent properties of
state waters. If field inspection reveals the inadequacy of the plan to confine sediment to the project site,
appropriate modifications will be made to correct any plan deficiencies. In addition to these notes, all
provisions of the Virginia Erosion and Sediment Control Regulations shall apply to this project.
10
2. All erosion and sediment control measures shall be installed and maintained in accordance with the
Virginia Erosion and sediment Control Handbook (3`d Edition, 1992) and Virginia Regulations
9VAC25-840 Erosion and Sediment control Regulations. The contractor shall be thoroughly familiar
with all applicable measures contained therein which may be pertinent to this project.
Where construction vehicle access routes intersect paved public roads, provisions shall be made to
minimize the transport of sediment by vehicular tracking onto the paved surface. Where sediment is
transported onto a public road surface, the road shall be cleaned thoroughly at the end of each day.
Sediment shall be removed from the roads by shoveling or sweeping and transported to a sediment
control disposal area. Street washing shall be allowed only after sediment is removed in this manner.
This provision shall apply to individual subdivision lots as well as to larger land -disturbing activities.
4. A copy of the approved erosion and sediment control plan shall be maintained on the site at all times.
5. Sediment basins and traps, perimeter dikes, sediment barriers, and other measures intended to trap
sediment onsite must be constructed as a first step in grading and be made functional before upslope
land disturbance takes place. Earthen structures such as dams, dikes, and diversions must be seeded and
mulched immediately after installation. Periodic inspections of the erosion control measures shall be
made to assess their condition. Any necessary maintenance of the measures shall be accomplished
immediately upon notification by the SWPPP Inspector and shall include the repair of measures
damaged by any subcontractor including those of the public utility companies.
6. The contractor is responsible for installation of any additional erosion control measures necessary to
prevent erosion and sedimentation as determined by the plan approving authority.
7. All disturbed areas are to drain to approved sediment control measures at all times during all land
disturbing activities and during site development until final stabilization is achieved.
8. Sediment control measures may require minor field adjustments at time of construction to insure their
intended purpose is accomplished. Division of code compliance approval will be required for other
deviations from the approved plans.
9. Cut and fill slopes shall be designed and constructed in a manner that will minimize erosion. Slopes that
are found to be eroding excessively within one year of permanent stabilization shall be provided with
additional slope stabilizing measure until the problem is corrected. Concentrated runoff shall not flow
down cut or fill slopes unless contained within an adequate temporary or permanent channel, flume or
slope drain structure.
10. Whenever water seeps from a slope face, adequate drainage or other protection shall be provided.
Contractor to notify engineer and county erosion control inspector.
11. During dewatering operations, water will be pumped into an approved filtering device.
11
12. The contractor shall place soil stockpiles at the locations shown on the SWPPP plan sheet for each area
of construction, or as directed by design engineer. Soil stockpiles shall be stabilized or protected with
sediment trapping measures immediately. Offsite waste or borrow areas shall be approved by the
division of code compliance prior to the import of any borrow or export of any waste to or from the
project.
13. Prior to commencing land disturbing activities in areas other than indicated on these plans (including,
but not limited to, offsite borrow or waste areas), the contractor shall submit a supplementary erosion
control plan to the owner for review and approval by the plan approving authority.
14. Permanent or temporary soil stabilization must be applied to all denuded areas within 7 days after final
grade is reached on any portion of the site. Temporary soil stabilization shall be applied within seven
days to denuded areas that may not be at final grade but will remain dormant for longer than 14 days.
Permanent stabilization shall be applied to areas that are to be left dormant for more than one year. Soil
stabilization measures include vegetative establishment, mulching and the early application of gravel
base material on areas to be paved. Contractor shall establish a stabilized site and not allow any
sediment to exit the project limits.
15. Soil stabilization refers to measures which protect soil from erosive forces of raindrop impact and
flowing water. Applicable practices include vegetative establishment, mulching and the early application
of gravel base on areas to be paved. Soil stabilization measures should be selected to be appropriate for
the time of year, site conditions and estimated duration of use.
16. When work in alive watercourse is to be performed, precautions shall be taken to minimize
encroachment, control sediment transport and stabilize the work area to the greatest extent possible
during construction. Non -erodible material shall be used for the construction of causeways and
cofferdams. Earthen fill may be used for these structures if armored by non -erodible cover materials.
Contractor shall follow the VESCH Chapter 3.25 Utility Stream Crossing requirements for the two
intermittent stream crossing.
17. When a live water course must be crossed by construction vehicles more than twice in any six-month
period, a temporary vehicular stream crossing constructed of non -erodible material shall be provided.
18. All applicable federal, state and local requirements pertaining to working in or crossing live water
courses shall be met.
19. The bed and banks of a watercourse shall be stabilized immediately after work in the watercourse is
completed.
20. Underground utility lines shall be installed in accordance with the following standards in addition to
other applicable criteria:
a. No more than 500 linear feet of trench may be opened at one time.
b. Excavated material shall be placed on the uphill side of trenches.
12
c. Effluent from dewatering operations shall be filtered or passed through an approved sediment
trapping device, or both, and discharged in a manner that does not adversely affect flowing
streams or off -site property.
d. Material used for backfilling trenches shall be properly compacted in order to minimize erosion
and promote stabilization.
e. Re -stabilization shall be accomplished in accordance with standards and specifications of the
Virginia Erosion and Sediment Control Handbook
f Applicable safety requirements shall be complied with.
21. If disturbed area stabilization is to be accomplished during the months of November, December, January
or February, stabilization shall be accomplished by permanently seeding the area with a seeding mixture
that includes the seasonal nurse crop for the Piedmont area, which is Winter Rye. See Table 3.32-D for a
list of site specific seeding mixtures for the Piedmont area. This is in accordance with Specification 3.32
from the Virginia Erosion and Sediment Control Handbook (VESCH). The seeding area will also need
to be mulched in order to assist the growth of the seeding in the winter months (Specification 3.35 of the
VESCH). For temporary seeding stabilization during these months, a 50150 mix of annual ryegrass and
winter ryegrass, as well as a mulching cover should be put down according to Specification 3.31 of the
VESCH, Table 3.31-B.
22. The term seeding, final vegetative cover or stabilization, on this plan shall mean the successful
germination and establishment of a stable grass cover from a properly prepared seedbed containing the
specified amounts of seed, lime, and fertilizing in accordance with Specification 3.32, permanent
seeding. Permanent vegetative cover shall not be considered established until a ground cover is achieved
that is uniform, mature enough to survive and will inhibit erosion.
23. Inlet protection in accordance with Specification 3.07 shall be provided for all storm drain inlets that are
made operable during construction so that sediment -laden water cannot enter the conveyance system
without first being filtered or otherwise treated to remove sediment.
24. Before newly constructed stormwater conveyance channels or pipes are made operational, adequate
outlet protection and any required temporary or permanent channel lining shall be installed in both the
conveyance channel and receiving channel.
25. All temporary erosion and sediment control measures shall be removed within 30 days after final site
stabilization or after the temporary measures are no longer needed, unless otherwise authorized by the
local program administrator. Trapped sediment and disturbed soil areas resulting from the disposition of
temporary measures shall be permanently stabilized to prevent further erosion and sedimentation.
26. If Applicable- As -built drawings must be provided for all detention/BMP facilities. Also upon
completion, the construction of all detention/BMP facilities shall be certified by a professional engineer
who inspected the structure during construction. The certification shall state that to the best of his/her
judgment, knowledge, and belief, the structure was constructed in accordance with the approval plans
and specifications.
13
Structural Practices:
The following erosion and sediment control structural practices will be incorporated on the project site:
1. Safety Fence (3.01)
2. Construction Entrance (3.02)
3. Road Stabilization (3.03)
4. Silt Fence/ Super Silt Fence (3.05)
5. Temporary Diversion Dikes (3.09)
6. Diversion Ditch (3.12)
7. Sediment Traps (3.13)
8. Sediment Basins (3.14)
9. Riprap (3.19)
10. Outlet Protection (3.18)
11. Inlet Protection (3.07)
Vegetative Practices:
1. Dust Control (3.39)
2. Surface Roughening (3.29)
3. Top soiling/Stockpiling (3.30)
4. Permanent/Temporary Seeding (3.31 & 3.32)
5. Mulch (3.35)
6. Erosion Control Blankets (3.36)
7. Tree Protection (3.38)
Stormwater Management:
The construction of Belvedere Phase 5 will occur in two separate stages of construction. The completed
subdivision will utilize an extended detention facility to facilitate channel and flood protection. Stormwater
runoff will be collected and conveyed through a stormwater pipe network to the facility. The water quality
portions of this plan will be satisfied with purchasing 9.68lb/yr of offsite nutrient credits in the same of adjacent
hydrologic unit code (02080204). Compliance of 9VAC25-870-65F: Offsite alternative law 9VAC25-870-69
purchase of nutrient offset credits is proposed and affirmed.
Waste Materials:
All waste materials will be collected and stored in a proper receptacle in accordance with all local and State
solid waste management regulations. All trash and construction debris from the site will be deposited in
dumpsters. The trash will be hauled to an appropriate waste disposal site. No construction waste materials will
be buried onsite. All project personnel will be instructed regarding the correct procedure for waste disposal.
Hazardous Waste:
All hazardous waste materials will be disposed of in the manner specified by the manufacturer and as required
by local or State regulation. Site personnel will be instructed in these practices.
14
Sanitary Waste:
All sanitary waste will be collected in the portable units as required by local and State regulation.
Offsite Vehicle Trackine:
Stabilized construction entrances will be provided to help reduce vehicle tracking of sediments. The paved
street adjacent to the site entrance will be swept as needed to remove any excess mud, dirt or rock tracked from
the site. Dump trucks hauling material from the construction site will be covered with a tarpaulin.
Timine of Controls and Measures:
As indicated in the Stabilization Practices, permanent or temporary soil stabilization must be applied to all
denuded areas within 7 days after final grade is reached on any portion of the site. Soil stabilization must also
be applied to denuded areas which may not be a final grade but will remain dormant (undisturbed) for longer
than 14 days. Soil stabilization measures include vegetative establishment, mulching and the early application
of gravel base material on areas to be paved.
Certification of Compliance with Federal, State and Local Requirements:
The Stormwater Pollution Prevention Plan reflects State requirements for stormwater management and erosion
and sediment control, as established in the Virginia Stormwater Management Handbook and Virginia Erosion
and Sediment Control Manual.
Maintenance and Inspection Procedures:
Inspections of the construction site shall be made by the SWPPP Inspector, Nicole Jamison or Alease Shiflett,
or by other qualified members of the Pollution Prevention Team (Jim Taggart and Riki Van-Niekerk).
Erosion and sediment control measures identified in the plan shall be observed to ensure that they are still
operating correctly. The contractor shall inspect all erosion control measures at least once every 4 or 5 business
days and after each significant rainfall producing event. Any necessary repairs or cleanup to maintain the
effectiveness of the erosion control devices shall be made within seven (7) days.
Inspections shall be conducted (i) at least once every four (4) business days or (ii) at least once every five (5)
business days and no later than 24 hours following a measurable storm event. In the event that a measurable
stone event occurs when there are more than 24 hours between business days, the inspection shall be conducted
on the next business day. These inspections shall cover disturbed areas that have not been finally stabilized,
areas used for storage of materials that are exposed to precipitation, structural control measures, and locations
where vehicles enter or exit the site.
Where areas have been finally or temporarily stabilized or runoff is unlikely due to winter conditions (e.g. site is
covered with snow, ice or frozen ground exists) such inspections shall be conducted at least once every month.
If weather conditions (such as above freezing temperatures or rain/snow events) make discharges likely, the
operator shall immediately resume the regular inspection frequency.
15
Reports summarizing each inspection shall be retained onsite as part of this Stormwater Pollution Prevention
Plan.
Each inspection report shall include the following items:
a) The date and time of the inspection and when applicable, the date and rainfall amount of the last
measurable storm event
b) Summarized findings of the inspection
c) The location(s) of prohibited discharges
d) The location(s) of controlled measures that require maintenance
e) The location(s) of control measures that failed to operate as designed or proved inadequate or
inappropriate for a particular location
f) The location(s) where any evidence identified under Park II G3a(7) exists
g) The location(s) where any additional control measure is needed that did not exist at the time of
inspection
h) A list of corrective actions required (including nay changes to the SWPPP that are necessary) as a
result of the inspection or to maintain permit compliance
i) Documentation of any corrective actions required from a previous inspection that have not been
implemented
j) The date and signature of the qualified personnel and the operator or its duly authorized
representative in accordance with Part III K of the general permit
Recordkeepine
1. Corrective Action and Forms
The operator shall implement the corrective action(s) identified as a result of an inspection as soon as
practicable but no later than seven days after discovery or a longer period as approved by the VSMP
authority. If approval of a corrective action by a regulatory authority (e.g., VSMP authority, VESCP
authority, or the department) is necessary, additional control measures shall be implemented to minimize
pollutants in stormwater discharges until such approvals can be obtained.
The operator may be required to remove accumulated sediment deposits located outside of the
construction activity covered by this general permit as soon as practicable in order to minimize
environmental impacts. The operator shall notify the VSMP authority and the department as well as
obtain all applicable federal, state, and local authorizations, approvals, and permits prior to the removal
of sediments accumulated in surface waters including wetlands.
The contractor shall be responsible for the installation and maintenance of all erosion and sediment
control practices for corrective actions.
Corrective action notes can be found directly on the SWPPP reports.
II. Grading and Stabilization Activities Log
Information on when major grading activities occur and when construction activities temporarily or
permanently ceases on a portion of the site will be provided on the inspection reports for the project
provided in the SWPPP updates section or on the grading and stabilization log provided in the appendix.
16
M. Rainfall Tracking
A blank rainfall data chart can be found in the appendix. It will be placed in the SWPPP notebook bi-
monthly.
IV. Log of Changes to the SWPPP
The operator shall amend the SWPPP whenever there is a change in the design, construction, operation
or maintenance that has a significant effect on the discharge of pollutants to surface waters and that has
not been previously addressed in the SWPPP.
A log of any changes to the SWPPP is provided in the appendix.
Comprehensive Site Compliance Evaluation — Post Construction:
Facility inspections will be conducted at least once a year by qualified personnel. The inspections will assess
conditions at the facility that could impact stormwater quality and to assess the effectiveness of the BMPs that
were constructed to control the quality of the stormwater discharges.
Non-Stormwater Discharges:
It is expected that the following non-stormwater discharges will occur from the site during the construction
period.
1. Waters used to wash vehicles or equipment where soaps, solvents, or detergents have not been used
and the wash water has been filtered, settled, or similarly treated prior to discharge.
2. Water used to control dust that has been filtered, settled, or similarly treated prior to discharge.
3. Potable water sources, including uncontaminated waterline flushing'stfire flow analysis.
4. Routine external building wash down where soaps, solvents or detergents have not been used and the
wash water has been filtered, settled, or similarly treated prior to discharge.
5. Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred (or
where all spilled or leaked material has been removed prior to washing); where soaps, solvents, or
detergents have not been used; and where the wash water has been filtered, settled, or similarly
treated prior to discharge.
6. Foundation or footing drains where flows are not contaminated with process materials such as
solvents.
7. Uncontaminated excavation dewatering, including dewatering of trenches and excavations that have
been filtered, settled, or similarly treated prior to discharge.
8. Landscape irrigation.
All non-stormwater discharges will be directed to sediment control measures prior to discharge.
17
Pollution Prevention Plan
See plan detail in Appendix A.
L Inventory for Pollution Prevention Plan:
The materials or substances, other than sediment, listed below are expected to be present onsite
sometime during construction:
(a)Staging Area- Small Fueling activities, minor equipment maintenance, sanitary facilities, and
hazardous waste storage
(b)Materials Storage Area- General building materials, solvents, adhesives, paving materials, paints,
aggregates, trash, etc.
(c)Construction Activity- Paving, Curb/gutter installation, concrete pouring/mortar/stucco, and building
construction
(d) Concrete Washout Area
Material/Chemical
Physical Description
Stormwater
Location- Area where
Pollutants
used on site
Pesticides (insecticides,
Various colored to
Chlorinated
Herbicides used for
fungicides, herbicides,
colorless liquid
hydrocarbons,
noxious weed control
rodenticides)
powder, pellets or
organophosphates,
sins
carbamates, arsenic
Fertilizer
Liquid or solid grains
Nitrogen, phosphorous
Newly seeded area
Plaster
White granules or
Calcium sulphate,
Home construction
powder
calcium carbonate,
sulfuric acid
Cleaning solvents
Colorless, blue or
Perchloroethylene,
Equipment Cleaning
yellow -green liquid
methylene chloride,
trichloroethylene,
petroleum distillates
Asphalt
Black solid
Oil, petroleum
Streets and roofing
distillates
Concrete
White solid/grey liquid
Limestone, sand, pH,
Curb and gutter,
chromium
sidewalk and building
construction
Glue, Adhesives
White or yellow liquid
Polymers, epoxies
Home Construction
Paints
Various colored liquid
Metal oxides, Stoddard
Home Construction
solvent, talc, calcium
carbonate, arsenic
Curing Compounds
Creamy white li uid
Naphtha
Curb and gutter
Hydraulic oil/fluids
Brown oily petroleum
Mineral oil
Leaks or broken hoses
hydrocarbon
from equipment
Wood preservatives
Clear amber or dark
Stoddard solvent,
Timber pads and home
brown liquid
petroleum distillates,
construction
arsenic, copper,
chromium
In
Gasoline
Colorless, pale brown
Benzene, ethyl
Secondary
or pink petroleum
benzene, toluene,
containment/ staging
hydrocarbon
xylene, MTBE
area or leaks
Diesel Fuel
Clear, Glue -green to
Petroleum distillate, oil
Secondary
yellow liquid
and grease,
containment/staging
naphthalene, xylenes
area or leaks
Antifreeze/coolant
Clear green/yellow
Ethylene glycol,
Leaks or broken hoses
liquid
propylene, glycol,
from equipment
heavy metals (copper,
lead, zinc)
Sanitary Toilets
Various colored liquid
Bacteria, parasites, and
Staging area
viruses
II. Material Management Practices:
The following are the materials management practices that will be used to reduce the risk of spills or
other accidental exposure of materials and substances to stormwater runoff.
(a) Employee Training:
Employee training with regard to material management practices is conducted at the site.
Training includes discussions of spill response, good housekeeping, and other material
management practices. Employee training generally occurs with each new employee once hired
by the site contractor.
(b) Good Housekeeping:
The following good housekeeping practices will be followed onsite during the construction
project.
1. All materials stored onsite will be stored in a neat, orderly manner in their appropriate
containers. Materials which have the potential for contaminating runoff during storm
events will be stored in their appropriate watertight containers, stored under a canopy,
tarpaulin, shrink wrapped or otherwise precluded from direct exposure of
precipitation.
2. Empty containers that may contain chemical residues shall be disposed of in
accordance with State and Local regulations.
3. Products, where possible, will be kept in their original containers with the original
manufacture's label.
4. Chemical or petroleum products will not be mixed with one another unless
recommended by the manufacturer.
5. Whenever possible, all of a product will be used up before disposing of the container.
6. Manufacturer's recommendations for proper use and disposal will be followed.
7. The site superintendent will inspect daily to ensure proper use and disposal of
materials onsite.
19
M. Hazardous Products:
These practices are used to reduce the risk associated with hazardous materials
1. Products will be kept in original containers unless they are not re -sealable.
2. Original specimen labels and materials safety data sheets will be kept on file; they contain
important product information.
3. If surplus product must be disposed of, manufacturers and/or local and State recommended
methods for proper disposal will be followed.
IV. Product Specific Practices:
The following product specific practices will be followed onsite:
(a) Petroleum Products:
1. All onsite vehicles will be monitored for fluid leaks and will receive regular
preventive maintenance to reduce the chance of leakage.
2. It is recommended that, if practicable, all refueling, repair and changing of equipment
and vehicle fluids shall be conducted in a designated area, with the use of either spill
buckets and/or fuel spill mats to reduce the potential for contamination. This area will
be designed in a manner to reduce the potential for contamination of onsite resources.
For refueling, repair and changing of equipment and vehicle fluids outside of the
designated areas, care should be taken to avoid activities within +/- 50 feet of
wetlands, streams, water bodies, tree preservation areas or any other environmentally
sensitive areas.
3. Petroleum products will be stored in tightly sealed containers which are clearly
labeled.
4. An area will be designated for the collection and storage of all chemical and storage
of all chemical and petroleum based products and containers for those products. The
containers shall be protected from rain events. These areas will be identified on the
SWPPP/PPP if necessary.
5. Any asphalt substances used onsite will be applied according to the manufacturer's
recommendations.
6. The project superintendent will regularly inspect the site to insure proper disposal
methods of used antifreeze, oils, filters and other hazardous materials are followed.
(b) Fertilizers:
Fertilizers used will be applied according to manufacturer's product standards. The contents of
any partially used bags of fertilizer will be transferred to a sealable plastic container to avoid
spills.
(c) Paints, Curing Compounds, Soaps, Solvents, and Detergents:
All containers will be tightly sealed and stored when not required for use. Excess paint will be
properly disposed of according to manufacturers' instructions or State and local regulations.
Discharges of soaps, solvents and detergents are prohibited.
20
(d) Concrete Trucks:
Concrete trucks will only wash out or discharge surplus concrete or drum wash water at
approved locations in accordance with State and local regulations. Wash water must be directed
into a leak proof container or leak -proof settling basin that is properly designed. The liquid and
hardened concrete must then be handled and disposed of properly and is not to be discharged.
Washout areas are identified on the SWPPP/PPP Reference Drawing included with the "Final
Construction Plans". An EPA concrete washout factsheet is provided in Appendix I. Water from
vehicle wash stations (if needed) is to be directed to the nearest trap as shown on the approved
erosion and sediment control plan before discharged.
(e) Solid Waste:
All waste materials will be collected and disposed of into two metal trash dumpsters in the
staging area. Dumpsters will have a secure watertight lid, be placed away from stormwater
conveyances and drains, and meet all local and state solid -waste management regulations. Only
trash and construction debris from the site will be deposited in the dumpsters. All personnel will
be instructed, during tailgate training sessions, regarding the correct procedure for disposal of
trash and construction debris. Notices that state these practices will be posted in the office trailer
and the individual who manages day-to-day site operations will be responsible for seeing that
these practices are followed
(f) Sanitary Waste:
Portable lavatories are located on -site and are serviced on a regular basis by a contractor. They
will be located in up -land areas away from direct contact with surface waters. Any spills
occurring during servicing will be cleaned up immediately, including any contaminated soils, and
disposed of according to all federal, state, and local regulations.
(g) Minimization of Exposure to Precipitation and Storm Events
In the event that precipitation is predicted onsite, construction activity operator to ensure that all
building materials, building products, construction wastes, trash, landscape materials, fertilizers,
pesticides, detergents, sanitary waste and other materials present onsite is protected from the
runoff by the sure of covering tarps that securely fastened to eliminate blow off.
V. Spills and Leaks:
This section normally contains a list of significant spills and significant leaks of toxic or hazardous
pollutants that occurred at areas that are exposed to precipitation or that otherwise drain to a stormwater
conveyance at the facility within the 3 year period immediately prior to the date of submission of a
registration statement to be covered under this permit.
No significant spills and/or leaks have occurred at the site of toxic or hazardous pollutants at areas that
are exposed to precipitation.
21
VI. Spill control Practices:
In addition to the good housekeeping and material management practices discussed in the previous
sections of this plan, the following practices will be followed for spill prevention and cleanup:
1. Manufacturers' recommended methods for spill cleanup will be clearly posted and site personnel
will be made aware of the procedures and the location of the information and cleanup supplies.
2. Materials and equipment necessary for spill cleanup will be kept in the material storage area onsite.
Equipment and materials may include but not be limited to brooms, dust pans, mops, rags, gloves,
goggles, absorbent material (e.g. kitty litter, sand, sawdust) and plastic and metal trash containers.
3. All spills will be cleaned up immediately after discovery.
4. In the event of a spill of a hazardous substance, the spill will be immediately contained and the spill
area will be kept well ventilated. Personnel will wear appropriate protective clothing to prevent
injury form contact with a hazardous substance during cleanup operation.
5. Spills of toxic or hazardous material will be reported to the appropriate State or local government
agency, as required by regulatory standards. Call the agencies listed below to report any spills of
toxic or hazardous material:
Seminole Trail Fire Department:
434-973-1717
Albemarle County Police Department:
434-977-9041
Charlottesville Health Department:
434-972-6200
VA Department of Conservation & Recreation:
1-804-786-2094
VDEQ Valley Regional Office: M-F, 8:30-4:30
540-574-7800
VA Department of Emergency Services:
1-800-468-8892
Local VSMP Authority: M-F, 8:00-5:00
434-296-5832
VII. Spill Procedure
1) Check for hazards (flammable material, noxious fumes, cause of spill) - if flammable liquid,
turn off engines and nearby electrical equipment. If serious hazards are present, leave the area
and call 911.
2) Make sure the spill area is safe to enter and that it does not pose an immediate threat to health
or safety of any person.
3) Stop the spill source.
4) Call co-workers and supervisor for assistance and to make them aware of the spill and
potential dangers.
5) If possible, stop spill from entering drains (use absorbent or other material as necessary)
6) Stop spill from spreading (use absorbent or other materials necessary)
7) If spill material has entered a storm sewer or public waters; contact locality's storm sewer
water department, locality's VSMP inspector, local VDEQ Office and VA Department of
emergency services.
8) Clean up spilled material and do not flush area with water.
9) Properly dispose of cleaning materials and used absorbent material according to manufacturer
specifications.
22
Pollution Prevention Certification:
I certify under penalty of law that I have read and understand that this document and all
attachments were prepared in accordance with a system designed to assure that qualified
personnel properly gathered and evaluated the information submitted. Based on my inquiry
of the person or persons who manage the system, or those persons directly responsible for
gathering the information, the information submitted is, to the best of my knowledge and
belief, true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for knowing
violations.
K4P17A\VI
TITLE:
SIGNA
DATE: N q I OR)
23
Appendices
APPX A- Site Maps/Construction Plans (Including Erosion and Sediment Control, Pollution Prevention
Plan, and Stormwater Management Plan)
APPX B- Copy of Construction General Permit
APPX C- VSMP Registration Statement, Notice of Coverage Letter, Notice of Termination
APPX D- Delegation of Authority
APPX E- Inspection Reports and Precipitation Log
APPX F- Grading/Stabilization Log
APPX G- Log of Changes and Updates to SWPPP Log
APPX H- Contractor/Subcontractor Certifications and Agreements
APPX I- Factsheets, Additional Information, and Spill Reports
24
APPX A- Site Maps/Construction Plans (Including Erosion and Sediment Control Plan, Pollution Prevention
Plan, and Stormwater Management Plan)
25
III
I
SITE DATA
OWNER:
BELVEDERE LAND HOLDINGS LLC
PO BOX 7505
CHARLOTTESVILLE, VA 22906
DEVELOPER.•
NEW BELVEDERE, Inc.
610 WEST RIO RD
CHARLOTTESVILLE, VA 22901
PLAN PREPARER:
ROUDABUSH, GALE, & ASSOCIATES
914 MON77CELLO ROAD
CHARLOTTESVILLE, VA. 22902
(4J4)-977-0205
TAX MAP PARCEL No:
06200-00-00-016DO
PARCEL AREA:
15, 00 ACRES
ZONING-
R4 RESIDENTIAL (THIS PARCEL IS NOT PART OF THE BELVEDERE ZMA-2004-0007)
STEEP SLOPES — MANAGED
STEEP SLOPES — PRESERVED
CURRENT USE:
VACANT
PROPOSED USE.-
RESIDENTIAL DEVELOPMENT
MAGISTERIAL DISTRICT.-
RIO MAGISTERIAL DISTRICT
WATERSHED:
UPPER R/VANNA RIVER
BOUNDARY SOURCE:
PLAT "DIVISION OF DUNLORA" PREPARED BY WM. MORRIS FOSTER, LAND SURVEYOR, DATED NOVEMBER 1,
1985, REVISED DECEMBER 20, 1985, RECORDED AT DB 875 PG JJI.
TOPOGRAPHY-
AERIAL TOPOGRAPHY FLOWN IN 2016 BY BELL LAND SURVEYS LLC. TOPOGRAPHY STILL UNCHANGED BASED
ON A S1TE VISIT AND DESIGN PROFESSIONAL'S OPINION, THE SURVEY IS STILL ACCURATE TO THE EFFECT
THAT THERE ARE NO EVIDENT VARIATIONS.
BENCHMARK:
FIRE HYDRANT 455.10, RIGHT FRONT BONNET BOLT, AT CORNER OF FOWLER STREET AND FARROW DRIVE
DATUNM-
HORZ: NAVD 88,• VERT.: NAD8J
FLOODPLA/N:
THIS PROJECT IS LOCATED WITHIN ZONE X" AS SHOWN ON FLOOD INSURANCE RATE MAP. COMMUNITY
PANEL NUMBER 51000JC 0279 D. EFFECTIVE DATE FEBRUARY 4. 2005,
NO EVIDENCE OF A BURIAL
SITE WAS FOUND ON SUBJECT PARCEL.
NO STREAM BUFFER(S) ARE PRESENT ON THE SUBJECT PARCEL.
THE SUBJECT PROPERTY IS
NOT LOCATED WITHIN AN AGRICULTURAL —FORESTAL DISTRICT
THIS SITE /S NOT LOCATED
WITHIN THE WATERSHED OF A PUBLIC WATER SUPPLY RESERVOIR.
STORMWATER MANAGEMENT COMPLIANCE SUMMARY
THE DEVELOPMENT OF BELVEDERE PHASE 5, TMP 62-16D, WILL OCCUR IN TWO SEPARATE STAGES OF CONSTRUCTION. THE COMPLETED SUBDIVISION WILL
UTILIZE AN EXTENDED DETENTION FACILITY TO FACILITATE CHANNEL AND FLOOD PROTECTION. STORMWATER RUNOFF WILL BE COLLECTED AND CONVEYED
THROUGH A STORMWATER PIPE NETWORK TO THE FACILITY, NUTRIENT OFFSET CREDIT PURCHASE ROUNDS OFF THE STORMWATER APPROACH.
REGARDING WATER QUALITY ANALYSIS:
9VAC25-870-63. WATER QUALITY DESIGN CRITERIA REQUIREMENTS.
1. NEW DEVELOPMENT, THE TOTAL PHOSPHORUS LOAD OF NEW DEVELOPMENT PROJECTS SHALL NOT EXCEED 0.41 POUNDS PER ACRE PER YEAR, AS
CALCULATED PURSUANT TO 9VAC25-870-65.
CALCULATIONS SHOWN ON THIS PLAN WERE DETERMINED FROM ACCEPTABLE METHODOLOGY "DEQ VRRM FROM NEW DEVELOPMENT COMPLIANCE
SPREADSHEET —VERSION 3.0."
CONCLUSION:
BASED ON NEW DEVELOPMENT OF BELVEDERE PHASE 5 (A AND B), TMP 62-16D, SHOWN HEREON THESE PLANS, THE WATER QUALITY PORTIONS OF THIS
PLAN WILL BE SATISFIED WITH PURCHASING 9.68 IB/YR OF OFFSITE NUTRIENT CREDITS IN THE SAME OF ADJACENT HYDROLOGIC UNIT CODE (02080204).
COMPLIANCE OF 9VAC25-870-65.F: OFFSITE ALTERNATIVE IAW 9VAC25-870-69 PURCHASE OF NUTRIENT OFFSET CREDITS IS PROPOSED AND AFFIRMED.
REGARDING WATER QUANITY ANALYSIS FOR POINT OF DISCHARGE #1:
COMPLIANCE OF 9VAC25-870. BA B (CHANNEL PROTECTION):
IN ACCORDANCE WITH CHANNEL PROTECTION SECTION B.3.A) OF 9VAC25-870-66 OF VIRGINIA LAW; THE MAXIMUM PEAK FLOW RATE FROM THE ONE—YEAR
24—HOUR STORM FOLLOWING THE LAND— DISTURBING ACTIVITY APPEARS TO BE IN ACCORDANCE WITH THE ENERGY BALANCE METHODOLOGY:
QDEVELOPED S I.F.*(QPRE—DEVELOPED* RVPRE— DEVELOPED) /RVDEVELOPED
POINT OF ANALYSIS is
1YR QDEVELOPED S I.F.* (1YR QPRE—DEVELOPED * RVPRE— DEVELOPED) /RVDEVELOPED
0,064 S 0.80*(0.611 * 0.38) /1.27
0.064 (1" ORIFICE) S 0.144
0.497 (3" ORIFICE)
POINT OF ANALYSIS 2:
1YR QDEVELOPED S I.F.* (1YR QPRE—DEVELOPED * RVPRE— DEVELOPED) /RVDEVELOPED
0.772 S 0.80* (1.597 * 0.515) / 0.680
0.772 S 0.97 cfs
COMPLIANCE OF 9VAC25-870-6.0 (FLOOD PROTECTIOM:
IN REFERENCE TO FLOOD PROTECTION SECTION C.1), THE SITE'S POINT OF DISCHARGE RELEASES CAPTURED STORMWATER INTO A CONVEYANCE SYSTEM
THAT, FOLLOWING LAND DISTURBING ACTIVITY, CONFINES THE POST —DEVELOPMENT PEAK FLOW RATE FROM THE 10—YEAR 24—HOUR STORM EVENT WITHIN
THE STORMWATER CONVEYANCE SYSTEM. Q10POST—DEVELOPED S Q10PRE—DEVELOPED
POINT OF ANALYSIS 1:
0t0POST—DEVELOPMENT (1" EB ORIFICE) = 3.496 cfs 5 Q10PRE—DEVELOPMENT = 4.373 cfs
Q10POST—DEVELOPMENT (Y EB ORIFICE) = 2.743 cfs 5 010PRE—DEVELOPMENT = 4.373 cfs
POINT OF ANALYSIS 2:
Q10POST—DEVELOPED S Q10PRE—DEVELOPED
5.31 cfs S 7.63 cfs
• 1111 1 A � A L!,
EROSION CONTROL PLAN FO
BELVEDERE PHASE 51
InoNOomll NO!un rmll nurnuu IPIIOrm urnrrrgl p r Il rvrn ql a rl pl,
III III I III )III P II II II II Ir" III II II I,,nII II II' P
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TMP 62 PARCEL 16D
RIO MAGISTERIAL DISTRICT, COUNTY OF ALBEMARLE, VA
G
C
VICINITY MAP
SCALE: 1"=1000 FEET
LEGEND
EXISTING INTERMEDIATE CONTOUR
- —33g - -
EXISTING INDEX CONTOUR
- 300 -
PROPOSED CONTOUR
20
EXISTING EDGE OF PAVEMENT
- - - EX. EP_
PROPOSED EDGE OF PAVEMENT
EP
EXISTING CURB AND GUTTER
®o =
PROPOSED CURB AND GUTTER
CG-6
TRANSITION FROM CG-6 ROLL-TOP
CG-6 �RL TOP
EX. 15" RCP
EXISTING STORM SEWER
15" RCP
PROPOSED STORM SEWER
EXISTING SANITARY SEWER
—s —S —S -
PROPOSED SANITARY SEWER
PROPERTY LINE
EASEMENT LINE
-----------------
CENTERLINE
-
LIMITS OF CLEARING AND/OR GRADING
EXISTING SPOT ELEVATION
.12.0
PROPOSED SPOT ELEVATION
+12.0
EXISTING TREE DRIP LINE
EXISTING TREE
A3
EX. 15' OAK
PROPOSED TREE
OAK
EXISTING WATERLINE
PROPOSED WATERLINE
�—
EXISTING FIRE HYDRANT
PROPOSED FIRE HYDRANT
EXISTING WATER VALVE
�rq
PROPOSED WATER VALVE
�• •—
PROPOSED WATER METER
EXISTING REDUCER
?� -
PROPOSED REDUCER
w10w—
HANDICAP RAMP (CG-12)
DENOTES LOCATION OF STD. VDOT
CG-12 AND/OR JURISDICTIONAL
IR��IBI
STANDARD RAMP CONSTRUCTION
PARKING INDICATOR
t2
INDICATES THE NUMBER OF TYPICAL PARKING SPACES
BENCHMARK
SOILS BOUNDARY
VEHICLES PER DAY COUNT
1,234 VPD
PROPOSED STREET NAME SIGN
+
EXISTING SIGN
PROPOSED SIGN
-�
12
SANITARY MANHOLE IDENTIFIER
18
STORM DRAIN STRUCTURE IDENTIFIER
ASSOCIATED PLANS WITH THIS PARCEL:
1. FINAL SITE PLAN SDP-2020-00036
2. ROAD & UTILITY PLAN SUB-2019-00170
3. EASEMENT PLAT SUB-2020-00123
4. RETAINING WALL DESIGN PLANS
SHEET INDEX
SHEET 1 --
COVER SHEET
SHEET 2
EXISTING CONDITIONS, SOILS & DEMOLITION PLAN
SHEET 3 -
EROSION CONTROL NARRATIVE
SHEET 4 ---
EROSION CONTROL PLAN PHASE 1 - PHASE 5A & TEMPORARY FIRE ROAD
SHEET 5 ----
EROSION CONTROL PLAN PHASE 1 - PHASE 5B
SHEET 6 -
EROSION CONTROL PLAN PHASE 1 - TEMPORARY FIRE ROAD
SHEET 7 ---
EROSION CONTROL PLAN PHASE 2 - PHASE 5A & TEMPORARY FIRE ROAD
SHEET 8 ---
EROSION CONTROL PLAN PHASE 2 - PHASE 5B
SHEET 9 -
EROSION CONTROL PLAN PHASE 2 - TEMPORARY FIRE ROAD
SHEET 10 ---
EROSION CONTROL PLAN PHASE 3 - PHASE 5A & TEMPORARY FIRE ROAD
SHEET 11
EROSION CONTROL PLAN PHASE 3 - PHASE 5B
SHEET 12 ----
EROSION CONTROL PLAN PHASE 3 - TEMPORARY FIRE ROAD
SHEET 13 ---
SEDIMENT BASIN-1 DESIGN & DETAILS
SHEET 14 --
EROSION CONTROL NOTES & DETAILS
SHEET 15 —
WATER QUALITY CALCULATIONS & COMPLIANCE
SHEET 16 ----
WATER QUANTITY CALCULATIONS & COMPLIANCE
SHEET 17 ----
STORMWATER MANAGEMENT POND CONVERSION
SHEET 18 --
CULVERT DESIGN
CONTRACTOR'S RECORD DRAWING CERTIFICATION STATEMENT:
(SEE SHEET 3 FOR RECORD DRAWING REQUIREMENTS)
THIS HAND MARKED SET OF DRAWINGS HAS BEEN 'REDLINED" TO PROVIDE AN ACCURATE DETAILED RECORD OF ANY
SUBSTANTIVE CHANGES TO THE APPROVED DESIGN DRAWINGS ANY ITEMS NOT 'REDLINED° ON THIS PLAN SET OR
SUBSEQUENT PAGES SHOULD BE CONSIDERED TO BE "CONS77?UC7ED IN ACCORDANCE WITH THE DESIGN AS SHOWN".
NAME, TITLE
FOR:
IF
TRACTOR)
APPROVALS
DATE
DEPARTMENT OF COMMUNITY DEVELOPMENT
ENGINEERING
INSPECTIONS
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DATE:
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SCALE:
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FILE:
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RGA#:
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SHEET:
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SCALE: 1
LFUTURE PHASE 5B
STEEP SLOPES (MANAGED)
11 STEEP SLOPES (PRESERVED)
95
(SOIL TYPE)
SOIL LINE TYPE
160 240 ,
BOUNDARY LINE INFORMATION
LINE
BEARING
DISTANCE
L 1
N 81 °23'05" E
26.04'
12
S 29°18'35" E
27.36'
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N 71 °09'25" E
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DATE:
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SCALE:
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JOB:
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SHEET: 2 OF18
'EROSION AND SEDIMENT CONTROL NARRATIVE
PRIOR TO CONSTRUCTION
1. OWNER SHALL POST SURETY BONDS FOR CONSTRUCTION, EROSION & SEDIMENT
CONTROL.
2. CONTRACTOR SHALL OBTAIN PERMITS TO WORK WITHIN STATE RIGHT-OF-WAY
(VDOT LAND -USE PERMIT). BONDING FOR WORK WITHIN THE VDOT RIGHT-OF-WAY
MAY BE REQUIRED TO OBTAIN THE PERMIT.
3. CONTRACTOR SHALL COORDINATE WITH OWNER TO OBTAIN VSMP PERMITS AS
REQUIRED BY THE STATE DEPARTMENT OF ENVIRONMENTAL QUALITY (DEQ).
4. CONTRACTOR SHALL OBTAIN LAND DISTURBANCE PERMIT FROM THE COUNTY OF
ALBEMARLE PRIOR TO BEGINNING CONSTRUCTION.
5. A PRE-CONSTRUC11ON MEETING WITH THE ENGINEER THE CERTIFIED LAND
DISTURBER, AND THE ENVIRONMENTAL INSPECTOR MAY ALSO BE REQUIRED.
ALLOW 72 HOURS FOR COORDINATION AND SCHEDULING OF PRE -CONSTRUCTION
MEETING.
PROJECT DESCRIPTION
THE FIRST STAGE OF CONSTRUCTION OF BELVEDERE PHASE 5, KNOWN AS PHASE 5A,
PROPOSES THE CONSTRUCTION OF 38 ATTACHED TOWNHOUSE UNITS AND 5 SINGLE
FAMILY DETACHED UNITS. THE SECOND STAGE OF CONSTRUCTION, KNOWN AS PHASE 5B,
PROPOSES 19 SINGLE FAMILY DETACHED UNITS.
EXISTING SITE CONDITIONS & ADJACENT AREAS
THE CURRENT CONDITIONS OF TMP 62-16D CONSISTS OF MODERATE TREE COVER WITH
VIRGIN SOL TERRAIN. THE PROPERTY IS BOUNDED BY A CREEK TO THE NORTH WHICH
SEPARATES IT FROM BELVEDERE PHASE 3, BELVEDERE PHASE 2B TO THE NORTH WEST,
AND DUNLORA FARM TO THE SOUTH WEST AND SOUTH EAST.
OFF -SITE AREAS
ALL EXCESS MATERIAL GENERATED AS PART OF THIS PROJECT SHALL BE HAULED TO A
LOCATION WITHIN THE BELVEDERE DEVELOPMENT THAT HAS BEEN APPROVED BY THE
COUNTY OF ALBEMARLE COMMUNITY DEVELOPMENT DEPARTMENT.
SOILS
27B - ELIOAK LOAM (2% TO 7% SLOPES):
MODERATELY SLOPING AND WELL DRAINED. STARTING AT SURFACE LAYER TO
SUBSTRATUM, SOIL LAYERS CONSIST OF LOAM, SILTY CLAY, SILT LOAM. PERMEABILITY
IS MODERATELY HIGH TO HIGH, AVAILABLE WATER STORAGE CAPACITY IS MODERATE.
SURFACE RUNOFF IS MEDIUM.
39D - HAZEL LOAM (15% TO 25% SLOPES):
SOIL IS DEEP, STRONGLY SLOPING AND EXCESSIVELY DRAINED. STARTING AT SURFACE
LAYER TO SUBSTRATUM, SOIL LAYERS CONSIST OF LOAM UP TO 20 INCHES DEEP,
CHANNERY LOAM UP TO 30 INCHES, BEDROCK UP TO 79 INCHES. PERMEABILITY IS
MODERATELY HIGH TO HIGH WHILE AVAILABLE WATER STORAGE IN PROFILE IS LOW.
LOCATION WITHIN THE DITCH WHERE APPLICABLE.
10. WHILE THE SEDIMENT BASIN REMAINS FUNCTIONAL FOR THE DISTURBED AREA,
INSTALL THE PERMANENT EXTENDED DETENTION PONDS AND OUTLET PROTECTION
MEASURES PER THE SPECIFICATIONS.
11. AFTER BEING NOTIFIED BY THE EROSION AND SEDIMENT CONTROL ADMINISTRATOR,
THE TEMPORARY EROSION AND SEDIMENT CONTROLS CAN BE CLEANED UP OR
REMOVED, AND THE SEDIMENT TRAPS CAN BE FILLED IN AND SEEDED, THEREBY
REDIRECTING DRAINAGE TO THE PERMANENT FACILITIES.
12. THE STORMWATER MANAGEMENT FACILITIES SHOULD BE CHECKED REGULARLY BY
THE HOMEOWNERS ASSOCIATIONS TO ENSURE THAT THEY ARE STRUCTURALLY
SOUND AND HAVE NOT BEEN DAMAGED BY EROSION. THE EMERGENCY SPILLWAY
SHALL BE CHECKED REGULARLY TO ENSURE THAT ITS LINING IS WELL ESTABLISHED
AND EROSION RESISTANT. GRASS SHALL BE KEPT MOWN BELOW A HEIGHT OF 15"
AND THE OUTLET SHOULD BE CHECKED FOR CLOGGING. THE DAM SECTION SHALL
BE KEPT FREE OF SAPLINGS OR TREES.(REFER TO THE ADDITIONAL MAINTENANCE
SPECIFICATIONS)
PERMANENT STABILIZATION
ALL AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH STRAW & SEED
IMMEDIATELY FOLLOWING FINISHED GRADE. SEEDING SHALL BE DONE WITH KENTUCKY 31
TALL FESCUE IN ACCORDANCE TO STANDARD AND SPECIFICATION 3.32 PERMANENT
SEEDING, OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. ANY
FERTILIZER AND LIME APPLICATIONS SHALL BE IN ACCORDANCE WITH SOIL TEST
RESULTS. ALL SEEDED AREAS WILL BE STRAW MULCHED TO PROTECT AGAINST RILL
EROSION AND TO PRESERVE SOIL MOISTURE THAT WILL ENHANCE SEED GERMINATION.
CRIMPING, PUNCH ROLLER -TYPE ROLLERS, OR TRACK WALKING MAY BE USED TO
INCORPORATE STRAW MULCH INTO THE SOIL ON SLOPES IF STRAW IS TO BE USED.
EROSION CONTROL MAINTENANCE
1. IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE CHECKED
DAILY AND AFTER EACH SIGNIFICANT RAINFALL. THE FOLLOWING ITEMS WILL BE
CHECKED IN PARTICULAR:
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3.
CRITICAL AREAS
A. STEEP SLOPES
STEEP SLOPES (PRESERVED) AND STEEP SLOPES (MANAGED) PER ALBEMARLE
COUNTY GIS DOES EXIST ON THE NORTH EAST SIDE OF THE SITE. THE AREAS
WHERE CONSTRUCTION ACTIVITIES OCCUR NEAR PRESERVED STEEP SLOPES, TREE
PROTECTION AND SILT FENCE WILL BE INSTALLED AS A PROTECTIVE BARRIER, AS TO 4
NOT DISTURB THE SLOPES.
STRUCTURAL PRACTICES
1. SAFETY FENCE (3.01) - A TEMPORARY SAFETY FENCE SHALL BE CONSTRUCTED
WHERE DEEMED NECESSARY DURING CONSTRUCTION TO PROTECT THE MANHOLES
AND SANITARY LINE FROM CONSTRUCTION TRAFFIC.
2. TEMPORARY CONSTRUCTION ENTRANCE (3.02) - A TEMPORARY CONSTRUCTION
ENTRANCE SHALL BE INSTALLED AT SITE ENTRANCE ON FOWLER STREET
3. ROAD STABILIZATION (3.03) - ACCESS ROADS, PARKING AREAS, AND OTHER
ON -SITE VEHICLE TRANSPORTATION ROUTES SHALL BE STABILIZED WITH STONE
IMMEDIATELY AFTER GRADING.
4. SILT FENCE BARRIER (3.05) - SILT FENCE BARRIERS WILL BE INSTALLED TO
FILTER RUNOFF FROM SHEET FLOW AS INDICATED ON THE EROSION AND SEDIMENT
CONTROL PLAN.
5. SUPER SILT FENCE BARRIER - WIRE -REINFORCED SILT FENCE BARRIER WILL BE
INSTALLED TO FILTER RUNOFF FROM SHEET FLOW IF DEEMED NECESSARY BY THE
EROSION CONTROL INSPECTOR.
VEGETATIVE PRACTICES
1. SURFACE ROUGHENING (3.29) - ALL AREAS WITH A GRADE STEEPER THAN 3:1
SHALL BE STAIR -STEP GRADED OR GROOVED (PLATE 3,29-4) TO AID IN GRASS
ESTABLISHMENT, INCREASE INFILTRATION, AND TO SLOW RUNOFF VELOCITIES.
2. TOPSOILING & STOCKPILING (3.30) - TOPSOIL WILL BE STRIPPED FROM AREAS TO
BE GRADED AND STOCKPILED FOR LATER USE. STOCKPILES ARE TO BE
STABILIZED WITH TEMPORARY VEGETATION OR TO HAVE SILT FENCE INSTALLED
ALONG THE LOWER PERIMETER TO PROTECT DOWNSTREAM AREAS.
3. TEMPORARY SEEDING (3.31) - AREAS NOT BROUGHT TO FINAL GRADE FOR A
PERIOD OF MORE THAN 14 DAYS SHALL BE STABILIZED WITH A TEMPORARY SEED
MIXTURE ACCEPTABLE FOR THAT TIME OF YEAR. CRIMPING, PUNCH ROLLER -TYPE
ROLLERS, OR TRACK WALKING MAY BE USED TO INCORPORATE STRAW MULCH
INTO THE SOIL ON SLOPES IF STRAW IS TO BE USED.
4. PERMANENT SEEDING 3.32) - AREAS BROUGHT TO FINAL GRADE OR THOSE
CONSTRUCTION AREAS THAT WILL REMAIN DORMANT FOR YEAR OR MORE SHALL
BE STABILIZED WITH A PERMANENT SEED MIXTURE ACCEPTABLE TO THAT TIME OF
YEAR. PREPARE SURFACE WITH APPROVED TREATMENT AND ADDITIVES PRIOR TO
APPLYING SEED.
5. MULCH (3.35) - PLANT RESIDUES OR OTHER SUITABLE MATERIALS SHALL BE
APPLIED TO DISTURBED SURFACES TO PREVENT EROSION AND REDUCE OVERLAND
FLOW VELOCITIES. THIS PRACTICE SHOULD BE APPLIED TO ALL SEEDING
OPERATIONS, OTHER PLANTER MATERIALS WHICH DO NOT PROVIDE ADEQUATE SOIL
PROTECTION BY THEMSELVES, AND BARE AREAS WHICH CANNOT BE SEEDED DUE
TO THE SEASON BUT WHICH STILL NEED PROTECTION TO PREVENT SOIL LOSS.
CRIMPING, PUNCH ROLLER -TYPE ROLLERS, OR TRACK WALKING MAY BE USED TO
INCORPORATE STRAW MULCH INTO THE SOIL ON SLOPES IF STRAW IS TO BE USED.
6. EROSION CONTROL BLANKETS (3.36) - EROSION CONTROL BLANKETS IN
CONJUNCTION WITH PERMANENT SEEDING WILL BE INSTALLED ON ALL SLOPES
STEEPER THAN 3:1 FOLLOWING GRADING. EROSION CONTROL BLANKETS WILL ALSO
BE INSTALLED IN DITCHES WHERE POTENTIAL EROSIVE VELOCITIES MAY EXIST AS
DETERMINED BY ENGINEERING CALCULATIONS. THIS WILL PROTECT FROM RILL AND
GULLY EROSION.
7. TREE PROTECTION 3.38) - THE TREE FENCE BARRIER WILL BE INSTALLED TO
PROTECT THE TREES OUTSIDE OF THE LIMITS OF DISTURBANCE AS INDICATED ON
THE EROSION AND SEDIMENT CONTROL PLAN.
8. DUST CONTROL (3.39) - DUST CONTROL METHODS MUST BE USED TO REDUCE
THE AMOUNT OF AIRBORNE DUST DURING ALL PHASES OF CONSTRUCTION WHERE
SOIL IS EXPOSED OR DISTURBED.
MANAGEMENT STRATEGIES
1. CONSTRUCTION WILL BE SEQUENCED SO THAT GRADING OPERATIONS CAN BE
SEQUENCED, AND ALSO BEGIN AND END AS QUICKLY AS POSSIBLE.
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2. THE CONSTRUCTION ENTRANCE AND PERIMETER EROSION CONTROL MEASURES
SUCH AS TREE PROTECTION AND SILT FENCE SHALL BE INSTALLED AS THE FIRST
STEP OF DISTURBANCE.
3. SEDIMENT BASIN MEASURES SHALL BE INSTALLED WITH PERIMETER SILT FENCE
PRIOR TO ANY GRADING AND SHALL BE SEEDED AND MULCHED IMMEDIATELY
FOLLOWING INSTALLATION.
4. THE SEDIMENT BASIN SHALL BE CHECKED FOR SEDIMENT ACCUMULATION AFTER
EVERY RUNOFF PRODUCING STORM EVENT. SEDIMENT SHOULD BE REMOVED WHEN
IT REACHES ONE-HALF OF THE DESIGN VOLUME OF THE WET STORAGE.
5. TEMPORARY SEEDING OR OTHER STABILIZATION METHODS, SUCH AS BASE
AGGREGATE WILL FOLLOW IMMEDIATELY AFTER REACHING FINAL GRADES.
6. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD
STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RE -SEEDED AS
NEEDED TO ESTABLISH GROWTH..
7. THE JOB SUPERINTENDENT SHALL BE RESPONSIBLE FOR THE INSTALLATION AND
MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL PRACTICES.
8. DURING FINE GRADING OPERATIONS, MAINTAIN ALL DIVERSION DITCHES TO THE
SEDIMENT TRAPS. THE SEDIMENT TRAPS SHALL REMAIN FUNCTIONAL THROUGHOUT
INSTALLATION OF THE STORM SEWER INLETS, PIPES, OUTFALLS.
INSTALL SILT FENCE INLET PROTECTION TRAPPING MEASURES AT EACH INLET
THE CONSTRUCTION ENTRANCE SHALL BE CHECKED DAILY FOR SOIL BUILDUP. IF
THE ENTRANCE BECOMES CLOGGED WITH SOIL AND FAILS TO PREVENT THE
TRANSPORTATION OF SOIL ONTO THE ROADWAY, ADDITIONAL STONE, REPLACEMENT
OF STONE, OR A WASH -RACK MAY BE REQUIRED.
SILT FENCE SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT
LEAST DAILY DURING PROLONGED RAINFALL. CLOSE ATTENTION SHALL BE PAID TO
THE REPAIR OF DAMAGED SILT FENCE RESULTING FROM END RUNS AND
UNDERCUTTING. SHOULD THE FABRIC ON A SILT FENCE DECOMPOSE OR BECOME
INEFFECTIVE PRIOR TO THE END OF THE EXPECTED USABLE LIFE AND THE BARRIER
STILL BE NECESSARY, THE FABRIC SHALL BE REPLACED PROMPTLY. SEDIMENT
DEPOSITS SHOULD BE REMOVED AFTER EACH STORM EVENT. THEY MUST BE
REMOVED WHEN DEPOSITS REACH APPROXIMATELY ONE-HALF THE HEIGHT OF THE
BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE SILT FENCE IS
NO LONGER REQUIRED SHALL BE DRESSED TO CONFORM WITH THE EXISTING
GRADE, PREPARED, AND SEEDED.
DIVERSION DIKES SHALL BE INSPECTED AFTER EVERY STORM AND REPAIRS MADE
TO THE DIKE, FLOW CHANNEL, OUTLET, OR SEDIMENT TRAPPING FACILITY AS
NECESSARY. ONCE EVERY TWO WEEKS, WHETHER A STORM EVENT HAS OCCURRED
OR NOT, THE MEASURE SHALL BE INSPECTED AND REPAIRS MADE IF NEEDED.
DAMAGES CAUSED BY CONSTRUCTION TRAFFIC OR OTHER ACTIVITY MUST BE
REPAIRED BEFORE THE END OF EACH WORKING DAY.
5. STORMWATER CONVEYANCE CHANNELS WHERE APPLICABLE:
5.1. GRASS LINED CHANNELS - DURING THE INITIAL ESTABLISHMENT, GRASS
LINED CHANNELS SHOULD BE REPAIRED IMMEDIATELY AND RE-ESTABLISHED
IF NECESSARY. AFTER GRASS HAS BECOME ESTABLISHED, THE CHANNEL
SHOULD BE CHECKED PERIODICALLY TO DETERMINE IF THE GRASS IS
WITHSTANDING FLOW VELOCITIES WITHOUT DAMAGE. IF THE CHANNEL IS TO
BE MOWED, IT SHOULD BE DONE IN A MANNER THAT IT WILL NOT DAMAGE
THE GRASS.
5.2. RIPRAP-LINED CHANNELS - RIPRAP LINED CHANNELS SHOULD BE CHECKED
PERIODICALLY TO ENSURE THE SCOUR IS NOT OCCURRING BENEATH FABRIC
UNDERLINING OF THE RIPRAP LAYER. THE CHANNEL SHOULD ALSO BE
CHECKED TO DETERMINE THE STONES ARE NOT DISLODGED BY LARGE
FLOWS.
5.3. IF SEDIMENT IS DEPOSITED IN A GRASS -LINED CHANNEL, IT SHOULD BE
REMOVED PROMPTLY TO PREVENT DAMAGE TO THE GRASS. SEDIMENT
DEPOSITED IN A RIPRAP CHANNEL SHOULD BE REMOVED WHEN IT REDUCES
THE CAPACITY OF THE CHANNEL.
6. CHECK DAMS SHALL BE CHECKED FOR SEDIMENT ACCUMULATION AFTER EVERY
RUNOFF PRODUCING STORM EVENT. SEDIMENT SHOULD BE REMOVED WHEN IT
REACHES ONE-HALF OF THE ORIGINAL HEIGHT OF THE MEASURE. REGULAR
INSPECTIONS SHALL BE MADE TO INSURE THE CENTER OF EACH DAM IS LOWER
THAN THE EDGES. EROSION CAUSED BY HIGH FLOWS AROUND THE EDGES OF THE
DAM SHOULD BE CORRECTED IMMEDIATELY.
7. THE EARTHEN EMBANKMENTS SHALL BE CHECKED REGULARLY TO ENSURE THAT IT
IS STRUCTURALLY SOUND AND HAS NOT BEEN DAMAGED BY EROSION OR
CONSTRUCTION EQUIPMENT.
8. THE STORMWATER MANAGEMENT FACILITIES SHOULD BE CHECKED REGULARLY BY
THE HOMEOWNERS ASSOCIATIONS TO ENSURE THAT THEY ARE STRUCTURALLY
SOUND AND HAVE NOT BEEN DAMAGED BY EROSION.
9. THE EMERGENCY SPILLWAY SHALL BE CHECKED REGULARLY TO ENSURE THAT ITS
LINING IS WELL ESTABLISHED AND EROSION RESISTANT. GRASS SHALL BE KEPT
MOWN BELOW A HEIGHT OF 15" AND THE OUTLET SHOULD BE CHECKED FOR
CLOGGING.
10. THE DAM SECTION SHALL BE KEPT FREE OF SAPLINGS OR TREES.(REFER TO THE
ADDITIONAL MAINTENANCE SPECIFICATIONS)
11. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD
STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RE -SEEDED AS
NEEDED. IN THE EVENT THAT THE APPLIED SEEDING FAILS TO TAKE HOLD,
BLANKET MATTING SHALL BE PLACED IN APPROPRIATE AREAS DEEMED NECESSARY
BY THE ENGINEER OR EROSION CONTROL INSPECTOR.
SEQUENCE OF CONSTRUCTION
AFTER OBTAINING ALL REQUIRED PERMITS THE CONTRACTOR SHALL COORDINATE A
PRE -CONSTRUCTION MEETING, ALLOWING 72 HOURS FOR ITS COORDINATION.
1. PHASE 1
1.1. PRIOR TO ANY LAND DISTURBANCE, CONTRACTOR TO HAVE SURVEYOR FLAG
PHASE 1 CLEARING LIMITS. NO CLEARING OR GRADING IS ALLOWED OUTSIDE
OF PHASE 1 LIMITS UNTIL THE PHASE IS COMPLETE.
1.2. INSTALL CONSTRUCTION ENTRANCE AT SITE ENTRANCE ON FOWLER STREET
AND AT THE FIRE ROAD ENTRANCE ON BELVEDERE BLVD. SHOULD THE
TEMPORARY CONSTRUCTION ENTRANCE NOT BE MAINTAINED PROPERLY OR AN
EXCESSIVE AMOUNT OF SOIL FOUND TRACKED ONTO THE PUBLIC ROADWAY,
THEN A PAVED CONSTRUCTION ENTRANCE, WATER TANKER TRUCK WITH TWO
(2) PRESSURE WASHERS AND A SETTLING AREA MAY BE REQUIRED BY THE
EROSION AND SEDIMENT CONTROL PROGRAM ADMINISTRATOR.
1.3. CLEARING AND GRUBBING SHALL FIRST BE LIMITED TO THAT NECESSARY TO
INSTALL SILT FENCE TREE PROTECTION AND OTHER PERIMETER CONTROLS.
SAFTEY FENCE SHALL BE INSTALLED IF DEEMED NECESSARY BY THE EROSION
CONTROL INSPECTOR. PERIMETER CONTROLS MUST BE MADE FUNCTIONAL
PRIOR TO ANY UPSLOPE LAND DISTURBANCE THAT TAKES PLACE.
1.4. INSTALL ORANGE CONSTRUCTION FENCE AS PROTECTION AT THE PERIMETER
OF THE PRESERVED STEEP SLOPES (PER ALBEMARLE COUNTY GIS) TO
PREVENT DISTURBANCE WITHIN THE WOODED AREAS CONSIDERED CRITICAL
SLOPES. SILT FENCE REQUIRE "J HOOKS" AT LEAST EVERY 100 FEET WHERE
SILT FENCE IS NOT NEAR PARALLEL TO EXISTING SLOPE. CONTRACTOR TO
INSTALL AS NEEDED, ESPECIALLY ALONG THE FILL SLOPES OF THE FIRE
ROAD.
1.5. INSTALL SEDIMENT BASIN 1 & SEDIMENT TRAPS 1 & 2. PROVIDED
STABILIZATION MEASURES TO THE DAM EMBANKMENT AND DOWNSTREAM
SLOPE WITH SILT FENCE PLACED DOWNHILL FROM THE TOE AS SHOWN ON
THE PLAN.
1.6. CONTRACTOR TO CONSTRUCT DIVERSION DIKES (DD) TO DIRECT RUNOFF TO
THE SEDIMENT BASIN AND TRAPS. SILT FENCE SHALL BE INSTALLED ON THE
DOWNHILL SIDE OF THE ACTIVE TRENCHING OPERATIONS.
1.7. ONCE ALL OF THE PHASE 1 CONTROLS ARE INSTALLED, AND PRIOR TO
ADDITIONAL CLEARING AND GRUBBING, THE CONTRACTOR SHALL COORDINATE
INSPECTIONS, AS REQUIRED BY THE COUNTY OF ALBEMARLE.
2. PHASE 2
2.1. UPON APPROVAL OF E&S CONTROL MEASURES BY COUNTY INSPECTOR, BEGIN
CLEARING AND GRADING OF THE PROJECT AREA. THE LAND DISTURBANCE
SHALL BE RESTRICTED TO THE LIMITS OF DISTURBANCE SHOWN IN THE
APPROVED EROSION CONTROL PLANS. THESE LIMITS ARE CONFINED TO THE
PROPERTY FOR THE FIRE ROAD AND THE BELVEDERE PHASE 5 DEVELOPMENT
WITHIN THE BELVEDERE SUBDIVISION
2.2. CONTRACTOR TO BRING SITE UP TO GRADE AS SHOWN ON THE PHASE 2
EROSION CONTROL PLAN. CONSTRUCTION ROAD STABILIZATION MAY BE
REQUIRED. REMOVE SEDIMENT TRAP #1. TRAP#2 MAY BE REMOVED IF
DEEMED APPROPRIATE BY THE COUNTY INSPECTOR. DENUDED AREAS SHALL
DRAIN TO AN APPROVED EROSION CONTROL MEASURE AT ALL TIMES DURING
CONSTRUCTION. ALL PERIMETER CONTROLS SHOULD BE MAINTAINED UNTIL
SITE IS UP TO GRADE AND AREA HAS ACHIEVED TEMPORARY STABILIZATION.
2.3. DIVERSION DIKES (DID) SHOULD BE MAINTAINED TO DIVERT WATER TO
SEDIMENT BASIN #1 AS SHOWN ON PHASE 2 PLAN.
2.4. STOCKPILE TOPSOIL WITHIN AN AREA ON THE PROPERTY OWNED BY
BELVEDERE AT A LOCATION APPROVED BY ALBEMARLE COUNTY COMMUNITY
DEVELOPMENT. INSTALL SILT FENCE AT THE PERIMETER OF STOCKPILE(S).
2.5. CONSTRUCT RETAINING WALLS AS SHOWN.
3.6. FOR THE AREA SHOWN AS BELVEDERE CONSTRUCTION PHASE 5B:
PERMANENT SOIL STABILIZATION SHALL BE APPLIED TO ALL DENUDED AREAS
WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF
THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN
DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL
REMAIN DORMANT FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION
SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE
THAN ONE YEAR. LIME, FERTILIZE AND APPLY TEMPORARY OR PERMANENT
SEEDING TO ALL DENUDED AREAS IMMEDIATELY AFTER ACHIEVING FINAL
GRADES. ALL PERMANENT SLOPES STEEPER THAN 3:1 SHALL RECEIVE
STABILIZATION WITH LANDSCAPING VEGETATION HARDIER THAN GRASS, WHICH
WILL NOT REQUIRE MOWING.
3.7. PUMP AND DRAIN EXISTING SEDIMENT TRAP ALONG FIRE ROAD. REMOVE
RIPRAP TO BRING SIDE SLOPES TO FINAL GRADE. BLANKETS, MATTING,
MULCHING, TEMPORARY SEEDING, AND ANY ADDITIONAL MEASURES SPECIFIED
BY THE INSPECTOR SHALL BE INSTALLED TO STABILIZE THE SIDE SLOPES OF
THE FIRE ROAD. SILT FENCE SHOULD BE USED PARALLEL WITH THE
PROPOSED SLOPES TO CAPTURE RUNOFF AS THE LIFTS ARE INSTALLED.
ADDITIONAL MEASURES, SUCH AS SEEDING MIGHT BE REQUIRED. MUD -TRAPS
ARE TO BE USED DURING THE INSTALLATION OF THE CULVERT PIPE. INSTALL
CULVERT INLET PROTECTION, AND OUTLET PROTECTION. DIVERSIONS TO BE
USED TO DIVERT WATER TO THE WEST SIDE OF THE FIRE ROAD WERE
POSSIBLE. CONSTRUCTION OF THE FIRE ROAD MUST BE COMPLETED ONCE
DISTURBANCE OCCURS, DURING A TWO WEEK NON -RAIN EVENT.
4. PHASE 3
4.1. REPAIR SILT FENCE WHERE NECESSARY, COMPLETE ANY DREDGING OF
SEDIMENT BASIN #1.
4.2. CONTRACTOR TO PROCEED WITH CONSTRUCTION OF UTILITIES AND SHALL
COORDINATE INSPECTIONS, AS REQUIRED BY THE ABLEMARLE COUNTY
SERVICE AUTHORITY.
4.3. ONCE ROADS HAVE BEEN COMPLETED AND STORM SYSTEM HAS BEEN MADE
FULLY FUNCTIONAL, SILT TRAP #2 MAY BE FILLED AND GRADED. AS STORM
STRUCTURES ARE CONSTRUCTED, INLET PROTECTION AND OUTLET
PROTECTION SHALL BE INSTALLED.
4.4. INSTALL DIVERSION DIKE (DID) AT THE TERMINAL OF FOWLER STREET
(CONSTRUCTION STAGE 1) TO DIVERT WATER TO THE BASIN AS SHOWN. THE
DIVERSION WILL BE MAINTAINED UNTIL BELVEDERE PHASE 58 PLANS HAVE
BEEN APPROVED.
4.5. REVISIT PERIMETER CONTROLS, CHECK AND REINFORCE SILT FENCE DOWN
HILL FROM SEDIMENT BASIN AND ALONG FIRE ACCESS ROAD. ENSURE NO
WASH -AROUND IS OCCURRING NEAR TOPSOIL STOCKPILE.
4.6. PERMANENT SOIL STABILIZATION SHALL BE APPLIED TO ALL DENUDED AREAS,
INCLUDING VEGETATION OF ALL SLOPES AND GRASSED AREAS. WITHIN SEVEN
DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE.
TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO
DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN
DORMANT FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE
APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE
YEAR. LIME, FERTILIZE AND APPLY TEMPORARY OR PERMANENT SEEDING TO
ALL DENUDED AREAS IMMEDIATELY AFTER ACHIEVING FINAL GRADES. ALL
PERMANENT SLOPES STEEPER THAN 3:1 SHALL RECEIVE STABILIZATION WITH
LANDSCAPING VEGETATION HARDIER THAN GRASS, WHICH WILL NOT REQUIRE
MOWING.
4.7. CLEAN OUT ALL SEDIMENT BUILD UP FROM STORM CULVERT AND BASINS.
AFTER SITE IS STABILIZED AND PERMISSION IS OBTAINED FROM THE EROSION
CONTROL INSPECTOR, REMOVE SILT FENCING AND OTHER REMAINING EROSION
CONTROL MEASURES IF DEEMED APPROPRIATE BY ALBEMARLE COUNTY.
EROSION AND SEDIMENT CONTROL MINIMUM STANDARDS
1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED
AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF
THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS
TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN
DORMANT FOR LONGER THAN 14 DAYS. PERMANENT STABILIZATION SHALL BE
APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR
1.1. CONTRACTOR SHALL ESTABLISH A STABILIZED SITE, AND NOT ALLOW ANY
SEDIMENT TO EXIT THE PROJECT LIMITS.
2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES AND BORROW AREAS
SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES. THE
APPLICANT IS RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT
STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS
AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE.
2.1. CONTRACTOR TO PROTECT STOCKPILE AREAS WITH SILT FENCE.
3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS
NOT OTHERWISE PERMANENTLY STABILIZED. PERMANENT VEGETATION SHALL NOT
BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IS
UNIFORM, MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION.
3.1. CONTRACTOR SHALL ESTABLISH A VEGETATIVE COVER ON ALL DENUDED
AREAS.
4. SEDIMENT BASINS AND TRAPS PERIMETER DIKES SEDIMENT BARRIERS AND OTHER
MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST
STEP IN ANY LAND -DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL
BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE.
4.1. CONTRACTOR SHALL ESTABLISH THE PERIMETER CONTROLS OF SUPER SILT
FENCE AS THE FIRST STEP OF THE LANDS DISTURBANCE FOR THIS PROJECT.
5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS
DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION.
5.1. CONTRACTOR SHALL INSPECT EROSION CONTROL MEASURES AFTER EACH
RAINFALL EVENT.
6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND CONSTRUCTED
BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP OR BASIN.
6.1. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134
CUBIC YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY
CONTROL DRAINAGE AREAS LESS THAN THREE ACRES.
6.2. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW
FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES SHALL
BE CONTROLLED BY A SEDIMENT BASIN. THE MINIMUM STORAGE CAPACITY OF
A SEDIMENT BASIN SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE
AREA. THE OUTFALL SYSTEM SHALL, AT A MINIMUM, MAINTAIN THE
STRUCTURAL INTEGRITY OF THE BASIN DURING A 25-YEAR STORM OF
24-HOUR DURATION. RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS
SHALL CORRESPOND TO A BARE EARTH CONDITION OR THOSE CONDITIONS
EXPECTED TO EXIST WHILE THE SEDIMENT BASIN IS UTILIZED.
7. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER
THAT WILL MINIMIZE EROSION. SLOPES THAT ARE FOUND TO BE ERODING
EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED
WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS
CORRECTED.THERE ARE NO PROPOSED CUT OR FILL SLOPES. HOWEVER, THE
CONTRACTOR IS TO RESTORE THE PROJECT AREA TO EXISTING GRADE. IF THE
AREAS WITH NATURALLY STEEP SLOPES ARE FOUND TO BE ERODING EXCESSIVELY
AFTER ONE YEAR, CONTRACTOR IS TO PROVIDE ADDITIONAL SLOPE STABILIZING
MEASURES UNTIL THE PROBLEM IS CORRECTED.
B. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS
CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME
OR SLOPE DRAIN STRUCTURE.MAXIMIZE SHEETFLOW AND GROUNDWATER
INFILTRATION
9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER
PROTECTION SHALL BE PROVIDED. CONTRACTOR TO NOTIFY ENGINEER AND COUNTY
EROSION CONTROL INSPECTOR.
10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION
SHALL BE PROTECTED SO THAT SEDIMENT -LADEN WATER CANNOT ENTER THE
CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO
REMOVE SEDIMENT.THERE ARE NO STORM SEWER INLETS PROPOSED.
11. BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS OR PIPES
ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED
TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE
CONVEYANCE CHANNEL AND RECEIVING CHANNEL.THERE ARE NO STORMWATER
CONVEYANCE CHANNELS OR PIPES PROPOSED.
12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE
TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND
STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING
CONSTRUCTION. NON -ERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION
OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE
STRUCTURES IF ARMORED BY NON -ERODIBLE COVER MATERIALS. CONTRACTOR
SHALL FOLLOW THE VESCH CHAPTER 3.25 UTILITY STREAM CROSSING
REQUIREMENTS FOR THE TWO INTERMITTENT STREAM CROSSINGS.
13. WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES
MORE THAN TWICE IN ANY SIX-MONTH PERIOD, A TEMPORARY VEHICULAR STREAM
CROSSING CONSTRUCTED OF NON -ERODIBLE MATERIAL SHALL BE PROVIDED.
14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS PERTAINING TO
WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET.CONTRACTOR SHALL
FOLLOW FOLLOW ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS
FOR STREAM CROSSINGS.
15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY
AFTER WORK IN THE WATERCOURSE IS COMPLETED.
16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE
FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA:
16.1. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE
TIME.
16.2. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES.
16.3. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED
THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE, OR BOTH, AND
DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING
STREAMS OR OFF -SITE PROPERTY.
16.4. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY
COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION.
16.5. RE -STABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THIS
CHAPTER.
16.6. APPLICABLE SAFETY REQUIREMENTS SHALL BE COMPLIED WITH.CONTRACTOR
TO ADHERE TO THE APPLICABLE STANDARD FOR PRIVATE AND PUBLIC
UTILITY INSTALLATION.
17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC
ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT
BY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS
TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE THE ROAD SURFACE
SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE
REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTED TO A
SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY
AFTER SEDIMENT IS REMOVED IN THIS MANNER. THIS PROVISION SHALL APPLY TO
INDIVIDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER LAND -DISTURBING
ACTIVITIES.CONTRACTOR SHALL MAKE PROVISIONS TO KEEP ADJACENT ROADS
CLEAN FROM SOIL BUILD-UP.
18. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED
WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY
MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE
VESCP AUTHORITY. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS
RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE
PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND
SEDIMENTATION. CONTRACTOR SHALL STABILIZE SITE, AND OBTAIN INSPECTOR
APPROVAL PRIOR TO REMOVING EC MEASURES. UPON APPROVAL OF THE
ENVIRONMENTAL INSPECTOR, INSTALL INFILTRATION AREAS AND CONNECT ROOF
DRAINS.
19. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE
PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND DAMAGE DUE TO
INCREASES IN VOLUME, VELOCITY AND PEAK FLOW RATE OF STORMWATER RUNOFF
FOR THE STATED FREQUENCY STORM OF 24-HOUR DURATION IN ACCORDANCE
WITH THE FOLLOWING STANDARDS AND CRITERIA. STREAM RESTORATION AND
RELOCATION PROJECTS THAT INCORPORATE NATURAL CHANNEL DESIGN CONCEPTS
ARE NOT MAN-MADE CHANNELS AND SHALL BE EXEMPT FROM ANY FLOW RATE
CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE
CHANNELS:THIS PROJECT DOES NOT INCLUDE ANY ADDITIONAL IMPERVIOUS
SURFACES AND THE PROJECT AREA WILL BE RESTORED TO ITS EXISTING
CONIDTIONS.THEREFORE WILL NOT PRODUCE ANY ADDITIONAL STORMWATER RUNOFF.
19.1. CONCENTRATED STORMWATER RUNOFF LEAVING A DEVELOPMENT SITE SHALL
BE DISCHARGED DIRECTLY INTO AN ADEQUATE NATURAL OR MAN-MADE
RECEIVING CHANNEL, PIPE OR STORM SEWER SYSTEM. FOR THOSE SITES
WHERE RUNOFF IS DISCHARGED INTO A PIPE OR PIPE SYSTEM, DOWNSTREAM
STABILITY ANALYSES AT THE OUTFALL OF THE PIPE OR PIPE SYSTEM SHALL
BE PERFORMED.
19.2. ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE VERIFIED USING THE
VSMP CHANNEL PROTECTION CRITERIA. STORMWATER DISCHARGES ARE
CLASSIFIED INTO ONE OF THREE TYPES OF CHANNEL.
(1) "MANMADE STORMWATER CONVEYANCE SYSTEM" MEANS A PIPE, DITCH,
VEGETATED SWALE, OR OTHER STORMWATER CONVEYANCE SYSTEM
CONSTRUCTED BY MAN EXCEPT FOR RESTORED STORMWATER CONVEYANCE
SYSTEMS OR,
(A) THE MANMADE STORMWATER CONVEYANCE SYSTEM SHALL CONVEY THE
POST -DEVELOPMENT PEAK FLOW RATE FROM THE TWO-YEAR EVENT
WITHOUT CAUSING EROSION OF THE SYSTEM DETENTION OF THE
STORMWATER OR DOWNSTREAM IMPROVEMENTS MAY BE INCORPORATED
INTO THE APPROVED LAND -DISTURBING ACTIVITY TO MEET THIS CRITERIA
AT THE DISCRETION OF THE STORMWATER PROGRAM ADMINISTRATIVE
AUTHORITY.
(8) THE PEAK DISCHARGE REQUIREMENTS FOR CONCENTRATED STORMWATER
FLOW TO NATURAL STORMWATER CONVEYANCE SYSTEMS SHALL BE MET.
QDEVELOPED <-- I.F. * (QPRE-DEV. * RVPRE-DEV.) / RVDEVELOPED
UNDER NO CONDITION SHALL QDEVELOPED > Q PRE-DEV.
NOR SHALL QDEVELOPED BE REQUIRED TO BE LESS THAN THAT
QFOREST * RVPRE-DEV.)/RVDEVELOPED
OR IN ACCORDANCE WITH ANOTHER METHODOLOGY THAT IS
DEMONSTRATED BY THE VSMP AUTHORITY TO ACHIEVE EQUIVALENT
RESULTS AND IS APPROVED BY THE BOARD.
(2) "NATURAL STORMWATER CONVEYANCE SYSTEM" MEANS THE MAIN
CHANNEL OF A NATURAL STREAM AND THE FLOOD -PRONE AREA ADJACENT
TO THE MAIN CHANNEL OR,
(3) "RESTORED STORMWATER CONVEYANCE SYSTEM" MEANS A STORMWATER
CONVEYANCE SYSTEM THAT HAS BEEN DESIGNED AND CONSTRUCTED USING
NATURAL CHANNEL DESIGN CONCEPTS. RESTORED STORMWATER CONVEYANCE
SYSTEMS INCLUDE THE MAIN CHANNEL AND THE FLOOD -PRONE AREA
ADJACENT TO THE MAIN CHANNEL.
(A) THE DEVELOPMENT SHALL BE CONSISTENT, IN COMBINATION WITH
OTHER STORMWATER RUNOFF, WITH THE DESIGN PARAMETERS OF THE
RESTORED STORMWATER CONVEYANCE SYSTEM THAT IS FUNCTIONING IN
ACCORDANCE WITH THE DESIGN OBJECTIVES.
(B) THE PEAK DISCHARGE REQUIREMENTS FOR CONCENTRATED STORMWATER
FLOW TO NATURAL STORMWATER CONVEYANCE SYSTEMS SHALL BE MET.
SEE 19(8)(1)(B).
GENERAL EROSION AND SEDIMENT CONTROL NOTES
WORK AREA PROTECTION & MAINTENANCE
1. ALL FENCES REQUIRED TO BE REMOVED OR DISTURBED BY CONSTRUCTION SHALL BE
SALVAGED, STORED, PROTECTED AND RE -INSTALLED BY CONTRACTOR AT THE DIRECTION
OF AND LOCATION DESIGNATED BY THE PROJECT MANAGER. IF SUCH FENCE MATERIAL
CANNOT BE REUSED DUE TO DAMAGE CAUSED BY CONTRACTOR, CONTRACTOR SHALL
INSTALL NEW FENCE OF THE SAME TYPE OF MATERIAL. TEMPORARY FENCING REQUIRED
BY PRIVATE PROPERTY OWNERS SHALL BE PROVIDED BY CONTRACTOR. CONTRACTOR IS
ADVISED TO CONTACT PROPERTY OWNERS AT LEAST FORTY-EIGHT (48) HOURS IN
ADVANCE OF REMOVING ANY FENCE IN ORDER TO COORDINATE RELOCATION AND/OR
PROTECTION OF ANY ANIMALS, AND TO ESTABLISH AND CONFIRM WITH THE OWNER THE
PRE -CONSTRUCTION CONDITION OF ANY FENCE TO BE REMOVED, DISTURBED OR
REPLACED.
2. CONTRACTOR IS PERMITTED TO WORK IN THE PUBLIC RIGHT-OF-WAY (FOLLOWING
ISSUANCE OF VDOT APPROVAL) AND ANY TEMPORARY OR PERMANENT EASEMENT
(FOLLOWING VERIFICATION OF EXISTENCE OF EASEMENT) SHOWN ON THE PLANS.
HOWEVER, CONTRACTOR SHALL NOTIFY PROPERTY OWNER(S) FORTY-EIGHT (48) HOURS
PRIOR TO WORKING ON ANY PRIVATE PROPERTY TO GAIN AND COORDINATE ACCESS AND
TO DETERMINE A STORAGE AREA FOR MATERIALS IF NEEDED. COORDINATION OF ACCESS
TO PUBLIC RIGHT-OF-WAY AND STORAGE OF MATERIALS THEREON SHALL BE
COORDINATED WITH VDOT AND THE PROJECT MANAGER. CONTRACTOR'S FAILURE TO SO
NOTIFY AND COORDINATE WITH PROPERTY OWNERS AND/OR THE PROJECT MANAGER MAY
RESULT IN DELAYS.
3. CONTRACTOR SHALL, AT HIS EXPENSE, MAINTAIN THE WORK SITE IN A CLEAN AND
ORDERLY APPEARANCE AT ALL TIMES. ALL DEBRIS AND SURPLUS MATERIAL COLLECTED
SHALL BE DISPOSED OF OFF THE WORK SITE BY CONTRACTOR, AT HIS EXPENSE.
4. EXISTING LAWNS, TREES, SHRUBS, FENCES, UTILITIES, CULVERTS, WALLS, WALKS,
DRIVEWAYS, POLES, SIGNS, RIGHT-OF-WAY MONUMENTS, MAILBOXES AND THE LIKE SHALL
BE PROTECTED FROM DAMAGE DURING THE WORK. ANY DAMAGE CAUSED TO SUCH ITEMS
SHALL BE REPAIRED OR REPLACED BY CONTRACTOR AT NO ADDITIONAL COST. PROPERTY
PINS DISTURBED BY CONTRACTOR THAT ARE NOT SHOWN ON THE PLANS TO BE
DISTURBED SHALL BE RESTORED BY A LICENSED SURVEYOR AT CONTRACTOR'S EXPENSE.
5. CONTRACTOR SHALL EMPLOY EROSION CONTROL DEVICES AND METHODS AS REQUIRED TO
MEET THE REQUIREMENTS AND INTENT OF THE LOCAL EROSION CONTROL ORDINANCE.
CONTRACTOR SHALL PROVIDE THE NECESSARY DIVERSION DITCHES, DIKES OR TEMPORARY
CULVERTS REQUIRED TO PREVENT MUD AND DEBRIS FROM BEING WASHED ONTO THE
STREETS OR PROPERTY. CONTRACTOR'S VEHICLES SHALL BE KEPT CLEAN TO PREVENT
MUD OR DUST FROM BEING DEPOSITED ON STREETS. NO AREA SHALL BE LEFT DENUDED
FOR MORE THAN SEVEN (7) CALENDAR DAYS.
VEGETATION
1. PRIOR TO REMOVING ANY VEGETATION CONTRACTOR SHALL MEET WITH THE PROPERTY
OWNERS AND THE PROJECT MANAGER TO REVIEW THE LIMITS OF CONSTRUCTION AND
OBTAIN PERMISSION TO REMOVE VEGETATION REQUIRED TO DO THE WORK.
2. TREE AND PLANT ROOTS OR BRANCHES THAT MAY INTERFERE WITH THE WORK SHALL BE
TRIMMED OR CUT ONLY WITH THE APPROVAL OF THE PROJECT MANAGER. ANY TREES OR
PLANTS WHICH ARE SHOWN TO REMAIN THAT DO NOT INTERFERE WITH THE WORK, BUT
ARE DAMAGED BY CONTRACTOR OR HIS SUBCONTRACTORS, SHALL BE REPAIRED OR
REPLACED BY CONTRACTOR AT NO ADDITIONAL COST.
3. CONTRACTOR SHALL CLEAN UP, RESTORE, SEED AND MAINTAIN ALL DISTURBED AREAS
IMMEDIATELY UPON COMPLETION OF WORK ON EACH SITE. TOPSOIL, SEED, FERTILIZER
AND MULCH SHALL BE PLACED IN ACCORDANCE WITH ESC AUTHORITY STANDARDS ON ALL
DISTURBED AREAS. A PERMANENT STAND OF GRASS ADEQUATE TO PREVENT EROSION
SHALL BE ESTABLISHED PRIOR TO FINAL ACCEPTANCE.
4. THE ACT OF RESEEDING SHALL NOT QUALIFY AS "STABILIZED". THE CONTRACTOR SHALL
14
BE RESPONSIBLE TO ESTABLISH VEGETATION, NOT SIMPLY APPLY SEED AND MATERIALS.
GENERAL CONSTRUCTION NOTES
1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO
THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE
COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO
THE FINAL INSPECTION.
2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED
AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND
SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL
HANDBOOK AND VIRGINIA REGULATIONS VR 625 02-00 EROSION AND
SEDIMENT CONTROL REGULATIONS.
3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED
PRIOR TO OR AS THE FIRST STEP IN CLEARING.
4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN
SHALL BE MAINTAINED ON THE SITE AT ALL TIMES.
5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER
THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO,
OFF SITE BORROW OR WASTE AREAS),THE CONTRACTOR SHALL SUBMIT A
SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW
AND APPROVAL BY THE PLAN APPROVING AUTHORITY.
6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL
EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND
SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY.
7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL
MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND
DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED.
8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN
APPROVED FILTERING DEVICE.
9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES
PERIODICALLY AND AFTER EACH RUNOFF PRODUCING RAINFALL EVENT.
ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS
OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY.
10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED
BORROW AREA.
11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA.
EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS,
WOOD, RUBBISH, AND OTHER DEBRIS.
12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF
COMPLETION PER ZONING ORDINANCE SECTION 5.1.28.
13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH
SECTION 13-301 OF THE CODE OF ALBEMARLE.
14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER
EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:00 AM TO 9:00 PM.
15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE
MANNER THAT MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY
HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND
IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE OF
SLIDES, SINKING, OR COLLAPSE.
16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL MAINTAIN
REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT
FACILITIES, WHERE APPLICABLE, ALL EROSION CONTROL MEASURES
REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT,
BUILDING OR OTHER PORTION OF THE PROPERTY.
17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING.
SEEDING IS TO BE AT 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER
TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND
CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL
RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW
MULCH IS TO BE APPLIED AT 80 LBS/100SF. ALTERNATIVES ARE SUBJECT
TO BE APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR.
18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT
SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE
APPLIED AT 90 LBS/1000SF. INCORPORATED INTO THE TOP 4-6 INCHES
OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000 LBS/ACRE AND CONSIST
OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED
AT 180 LBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE
AND 0-5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW
MULCH IS TO BE APPLIED AT 80 LBS/100SF. ALTERNATIVES ARE SUBJECT
TO BE APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR.
CONTRACTOR'S RECORD DRAWING REQUIREMENTS
CONTRACTOR SHALL KEEP ACCURATE RECORDS OF ANY CHANGES
SUBSTITUTIONS, ALTERATIONS, VARIATIONS OR UNUSUAL CONDITIONS ENCOUNTERED OR
IMPLEMENTED WHILE ENGAGED ON THIS PROJECT. THESE RECORDS SHALL BE IN THE FORM
OF "REDLINES". 'REDLINES" SHALL REFER TO THE CONTRACTOR'S HAND ANNOTATIONS USING RED
COLORED PEN/PENCIL TO DEPICT ACTUAL CHANGE, SUBSTITUTION, OR CONDITION.
PRIOR TO CONTRACTOR REQUESTING PARTIAL OR FULL PAYMENT, CONTRACTOR SHALL PROVIDE
THE OWNER WITH AN UP-TO-DATE CONTRACTOR'S RECORD DRAWING, SPECIFICALLY, THIS SET OF
PLANS, ISSUED TO THE CONTRACTOR AS FINAL CONSTRUCTION DRAWINGS, SHALL BEAR
THE 'REDLINE" MARKINGS LISTED BELOW AS WELL AS THE CONTRACTOR (AGENT OR
SUPERINTENDENT) SIGNATURE AND CERTIFICATION BELOW:
1. REDLINES SHOULD ALWAYS BE ACCURATE NEAT, LEGIBLE, DATED AND REASONABLY SCALED.
2. ADD LARGE RED LETTERS TO TITLE SHEET WITH 'CONTRACTOR'S RECORD DRAWING' INCLUDING
CONTRACTOR'S NAME, DATE, AND OTHER RELEVANT INFORMATION
3. CONTRACTOR'S REPRESENTATIVE OR SUPERINTENDENT SHALL INITIAL EACH SHEET. IF A
SHEET HAS NOT BEEN CHANGED AT ALL OR NO MARK HAS BEEN ADDED, LABEL THE SHEET
ONLY 'NO CHANGES'
4. IF A SHEET HAS BEEN CHANGED OR MODIFICATIONS HAVE BEEN ADDED, LABEL IT 'REVISED'
5. USE WRITTEN EXPLANATION TO DESCRIBE CHANGES. REFER TO SPECIFIC ACTIONS INSTEAD OF
REFERENCING CHANGE ORDER NUMBERS OR RELATED DOCUMENTS
6. USE CLEAR LETTERING
7. NEVER REMOVE OLD VALUES OR DETAILS, JUST REDLINE OR "X" THROUGH THEM. IF THERE IS
NO ROOM FOR THE NEW VALUE, YOU CAN GO TO THE SIDE AND REDLINE THE REPLACEMENT
VALUE.
B. PROVIDE THE REDLINE DETAILS OF CHANGES OR ADDITIONAL INFORMATION INCLUDING BUT
NOT LIMITED TO FABRICATION, ERECTION, INSTALLATION, LOCATION, SIZING, MATERIAL,
DIMENSION, ADDITIONS, RELOCATIONS, SUBSTITUTIONS, ETC
9. BE SPECIFIC WHEN MAKING NOTES TO UNDERGROUND UTILITIES, SHOWING EXACT LOCATION,
DEPTH, AND MATERIAL USED (EXAMPLE: SEWER LATERALS)
10. PROVIDE ALL NECESSARY INFORMATION OF CONTRACTOR'S DESIGNED SYSTEMS OR
SUBSTITUTIONS
11. CROSS OUT ANY PLAN REFERENCE TO "APPROVED EQUAL" AND REPLACE WITH ANY SPECIFIC
INFORMATION OF VARIANCE USED DURING THE CONSTRUCTION PROCESS
12. ANY CHANGES IN INVERT ELEVATIONS, GRADE MODIFICATIONS, SLOPES, AND RELATED
INFORMATION ON PIPING UTILITIES, EARTHWORK, ETC. SHALL BE REDLINED.
13. RECORD ALL UNEXPECTED OBSTRUCTIONS, COMPLICATING FACTORS, UNSUITABLE CONDITIONS
FOUND IN THE PROJECT AREA INCLUDING ROCK, UNUSUAL TOPSOIL CONDITIONS, BURIED
DEBRIS, ETC.
14. ATTACH OR INCLUDE ANY SHOW DRAWINGS OR SUPPLEMENTAL INFORMATION TO THE
CONTRACTOR'S RECORD DRAWING
15. CHANGES MADE AS A RESULT OF ANY REGULATORY OR OWNER INSPECTION PROCESS
CERTIFICATION STATEMENT:
THIS HAND MARKED SET OF DRAWINGS HAS BEEN "REDLINED" TO PROVIDE ACCURATE
DETAILED RECORD OF ANY SUBSTANTIVE CHANGES TO THE APPROVED DESIGN
DRAWINGS. ANY ITEM NOT 'REDLINED" ON THIS PLAN SET OR SUBSEQUENT PAGES SHOULD
BE CONSIDERED TO BE 'CONSTRUCTED IN ACCORDANCE WITH THE DESIGN AS SHOWN".
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RGA#:
8438
SHEET: 3__ OF 18
I
EROSION CONTROL PLAN LEGEND
3.18
OUTLET
PROTECTION
OP
3.02 ENTRANCETION
CE
3.03
CONSROADTSTABILLIIZATION
CRS
3.19
RIPRAP
RR
3.05
SILT FENCE
SF
3.31
ESEEDIING Y
TS
- �-
3.07
DRAIN PROTECTION
INLET
IP
3.32
T
P SEEDING
PS
Ps
TEMPORARY
DERS ON
3.38TREE
PON309
AND PROTECTION
TP
- o--
3.13
SEDIMENT TRAP
ST
3.39
DUST CONTRO LL
DC
*REFERENCE VIRGINIA EROSION
DETAILS REGARDING INDIVIDUAL
AND SEDIMENT
CONTROL
CONTROL HANDBOOK
MEASURES.
(VESCH)
FOR
TEMPORARY SEDIMENT TRAP PARAMETERS ST#1
Total Drainage Area= 0.57 acres
Total Storage Req= 76.38 cy
Minimum wet/dry Volume Req'd.
= 67 cy * 0.57 acres
= 38.19 cy
Total Storage Provided @ 444
= 149.40 cy
Sediment Trap Design Volumes
for Wet Storage
Available Basin Volume Prov'd.
= 48.7 cy @ 440
Bottom of wet storage: 436
Top of wet storage: 440
Side slope: 1:1
Depth:4 ft
Sediment Trap Design Volumes
for Dry Storage
Available Basin Volume Prov'd.
= 100.7 cy ® 444
Bottom of dry storage/bottom
of stone weir: 440
Top of dry storage:444
Side Slopes:2:1
Depth: 2 ft
Sed Trap Design Elevations:
Top of Berm/Weir = 445
H 3 ft
Berm Width = 2.5 feet
Bottom of Stone Weir (Bottom
of Dry storage) — 440
Ho 2 ft
Weir Length = 6 x area = 4.5
feet
W 2.5 ft
Weir Height = 2 foot
30
STEEP SLOPES (MANAGED)
OSTEEP SLOPES (PRESERVED)
BOUNDARY LINE INFORMATION
LINE
BEARING
DISTANCE
L7
N 87°23'05" E
26.04'
L2
S 29°1835" E
27.36'
L3
N 71 °09'25' E
27.84'
CRITICAL SLOPES TO BE FENCED OFF PRIOR TO STARTING
'- ,CONSTRUCTION. PROPOSED, LIMITS OF DISTURBANCE. IS
\, \ � � � � � � �• \. CONCURRENT WITH; AND DOES NOT ENCROACH INTO THE CRITICAL--*—' � • �' ; y , . .,.� � , _ _ I ' , 43 ��� a
--SLOPES. THE TREE PROTECTION, SILT FENCE, AND LIMITS OF.
DISTURBANCE -LINES ARE ALL OFFSET.FOR GRAPHICAL PURPOS.ES..
T1� Now
\\ —
38 —I
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�`_ �� PROPOSED SAFETY FENCE, I
`� INSTALL SIGNS "WARNING ST-1 DRAINAGE AREA — CONCENTRATED STORMWATER '
KEEP OUT, DROWNING \ TO ST-1: 0.57 AC 2�
p. HAZARD" FLOW DIVERTED TO SEDIMENT
TRAPS/BASIN USING DIVERSIONS i
PROPOSED DIVERSION. \ \
/ I — _ (TYP)
CONTRACTOR SHALL ` � _ _ _
ENSURE POSITIVE SLOPE `
IS MAINTAINED. BERM
/ TP SF SHALL BE STABILIZED AS \
��� / `� A FIRST STEP IN
TP TP XTP X— X TP X'=� �� DISTURBANCE.(TYPICAL
/ FOR ALL SHOWN) 1
BELVEDERE // O
Oil 0 CE _ \ \\ \I PHASE
DC
TS
/ =r / / , \ \ \� ' ALL SLOPES GREATER C< `<0 440
/ '� 4 \ s / / �� 7
THAN 3:1 MUST BE / `"
F/ TR/�E.`�i�,-----�\\ \ �S \\ \ ��� STABILIZED WITH LOW / // -400
/ Y y Y ? h/Y \\ \\ \ GROUND COVER 0 HERMAINTENANCE IVE // / /, / ��2�
//'�/�/�i 4 CDG• DD /�^`\\ \\ \\\ \` ' / i ` THAN GRASS ,/ // DD/AIII
00 'Ab (PS
---
DRAINAGE AREA TO SB-1: 4.21
AC. (SEE SEDIMENT BASIN
CALCULATIONS SHEET 131
446
Bonnet \\2°N I l pRO��R// \ I \\ \ \\ \ �\\✓/ /��� /,� SB-1 /' /; 77 // // // // /\ MU
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RECEIVING SECTION OF SF=615 LF
* MU
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h \ \ I \ I I \ 7 / \\ \ \ \ \ \\ LIMITS OF DISTURBANCE 14.46 ACRES '
// O>0/ \\ \ \ \ \� UO \ I -----� �� / /
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SCALE:
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FILE:
wPo-2020-00034
RGA#:
8438
SHEET:
4 OF 18
EROSION CONTROL PLAN LEGEND
3.02
CE
CONSTRUCTI
ENTRANCE N
3.03
CONSROADSTABILIZATIONCRS
3.05
SILT FENCE
SF
F3-0]7STORM
3.07
DRAIN
INLET PROTECTION
IP
3.09
TEMPORARY
DIVERSION DIKE
DDT
3.13
SEDIMENT TRAP
ST
3.18
PRTTET ON
OP
3.19
RIPRAP
RR
3.31
TEMPORARY
SEEDING
3.32
P S ERMENANEDING T
PS
- o--
3.38
TREE PRESERVATION
AND PROTECTION
TP
- �-
3.39
DUST CONTROLo--
*REFERENCE VIRGINIA EROSION AND
SEDIMENT CONTROL HANDBOOK (VESCH)
FOR DETAILS REGARDING INDIVIDUAL
CONTROL MEASURES.
BOUNDARY LINE INFORMATION
LINE
BEARING
DISTANCE
L 1
N 81 `23'05" E
26.04'
L2
S 29'18'35" E
27.36'
L3
N 71 `09'25" E
27.84,
ElSTEEP SLOPES (MANAGED)
STEEP SLOPES (PRESERVED)
Total Drainage Area= 1.61 acres
Total Storage Req= 134 * 1.61
= 215.74 cy
Minimum wet/dry Volume Req'd. = 67 cy * 1.61
acres = 107.87 cy
Total Storage Provided ® 432
= 434.30 cy
Sediment Trap Design Volumes
for Wet Storage
Available WET Volume Prov'd. =
124.48 cy @
430
Bottom of trap: 428
Top of wet storage: 430
Side slope: 2:1
Depth:2 ft
Sediment Trap Design Volumes
for Dry Storage
Available DRY Volume Pro v'd. =
171.30 cy ®
432
Bottom of dry storage/bottom
of stone weir:
430
Top of dry storage:432
Side Slopes:2:1
Depth: 2 ft
Sed Trap Design Elevations:
Top of Berm/Weir = 433
Berm Width = 4.5 feet
Bottom of Stone Weir (Bottom
of Dry storage) = 430
Weir Length = 6 x area = 10
feet
Weir Height = 3 foot
/. .��. ice• � �.� i.��. __ ---. 1. .%. l / \' '1� \
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/././ �i///•lei' .�/• i,r' �. ---_� .r. .%. i3A /� \\ \ \\'\' \ .\ \ .1\. \ \ \\'� I 1 \ \ \
.. /// .ter' i ! /. ��/ �_ -__ __-__ /, i!. .� / \ \ \ \ \ •\ '\' \ \.\� \. \\ I I / /
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CONCENTRATED STORMWATER
FLOW DIVERTED TO SEDIMENT
TRAPS/BASIN USING DIVERSIONS / \\ `�\ 294 / \\
(A
/ / RAINA�GE AREA tom\ \ \ \\-� �------- � /
/D,\ m
DC / TO ST-2: 1.60 AC
TS'-
/
(p I /' BELVEDERE
S� --- PHASE 5B
7P DC \\ DD
\
------------------
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\ I I I I I
\ I
o
PROPOSED DIVERSION. I I I
CONTRACTOR SHALL
- _ ENSURE POSITIVE SLOPE - Lin- _ I 1
---IS MAINTAINED. BERM I I SF ) I I I I
SHALL BE STABILIZED AS
A FIRST STEP IN
-_ DISTURBANCE.(TYPICAL
FOR ALL SHOWN)
I I
DC
\ \\--- , TS / I�
\�-----434- _ /
\ \ DRAINAGE AREA TO SF=1.19 AC
v ---4 RECEIVING SECTION OF SF=664 LF
\ *DA DOES NOT EXCEED 0.25 AC PER 100 LF
\ \ CONCENTRATED STORMWATER
FLOW DIVERTED TO SEDIMENT
— —
`\ TRAPS/BASIN USING DIVERSIONS30�
430
gyp)
— - -428- -
\\ \\ \\ �_-_-_----424-----__
\\ \----------422---___
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DATE:
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SCALE:
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FILE:
wPo-2020-oo034
RGA#:
8438
SHEET:
5 OF18
I I I I I I I I I < \
1'l•' 1 I( ( / 1 30 0 30
I I \
1\ \. \ \.
SCALE: 1"=30'
I I I I I I I I I I I i I I• I / / / / /.i././ / .\. II � // /// 1,'l. I I I � ( / / ( I � I \ \
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�� / / / i o ; `� ✓ \ STEEP SLOPES (PRESERVED)
pI ./. \ I
./// \\ \\ \ IIII�� / /fl
.\.
\ \ \ G k \ \ \ \ \ 1 CONTRACTOR TO INSTALL 3' - 4' SECTIONS OF SILT
FENCE "J-HOOK" EVERY 100 FEET WHERE SILT I
FENCE IS NOT NEAR PARALLEL TO EXISTING SLOPgoo
ARM ows
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BOUNDARY LINE INFORMATION
LINE
BEARING
DISTANCE
L 1
N 81 `23'05" E
26.04'
L2
S 29'18'35" E
27.36'
L3
N 71'09'25" E
27.84'
x}''1x MOO low X�
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9 II IR I-,
0\ / BM REV. 455.10 \ \ \ Q / \
\ \ \ \ \ \ ALBEMARLE COUNTY CIS \� o\ \ \ - 0 � / Bolt on Hydrant 5 0-r%0'N'
P1pMANGED SLOPES \ �� �c��\� Zoo. j N S
\ V \ \ \ \ \ \ \ \ Z�\e�
\ \ \ \ \ C9 Q
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50 \ \ \ \\
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NOTE LOT 245 THROUGH 254: ALL TOWNHOUSE AND VILLA UNIT ROOF DRAINS SHALL
x \ _ TIE-IN TO THE PRIVATE STORM DRAINAGE PIPES. WHERE APPLICABLE, ALL FOUNDATION
DRAINS FROM THE ATTACHED UNITS SHALL TIE INTO THE PRIVATE STORM DRAINAGE
CE !\ PIPES AS WELL. (FROM APPROVED PHASE 118 PLAN WP02016-71 AMENDMENT #2)
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DATE:
06-11-2020
SCALE:
1"=30'
FILE:
wPo-2020-00034
RGA#:
8438
SHEET:
6 OF18
i
EROSION CONTROL PLAN
LEGEND
3.02
CE
3.18
OP
CONSTRUCENTRANCETION
PRTTETTI N
3.03
CRS
3.19
RR
CONSROADTSTABILOIZATION
RIPRAP
3.05
SILT FENCE
SF
3.31
TEMPORARY SEEDING
TS
---0--
3.07
IP
3.32
PSTEMPORARY
Ps
MENAN
P SE ED NG T
IINLET DRAINPROTECTION
3.09
DD
.�..��
3.38
TANDREE PPROTECTIOINN
TP
- -
DIVERSION DIKE
3.13 SEDIMENT TRAP ST 3.39 DUST CONTROL DC
*REFERENCE VIRGINIA EROSION AND
SEDIMENT CONTROL HANDBOOK (VESCH)
FOR DETAILS REGARDING INDIVIDUAL
CONTROL MEASURES.
30 0 30 60 90
SCALE: 1 "=30'
STEEP SLOPES (MANAGED)
OSTEEP SLOPES (PRESERVED)
BOUNDARY LINE INFORMATION
LINE
BEARING
DISTANCE
L 1
N 81 '23'05 " E
26. 04 "
L2
S 29° 18'35" E
27.36'
L3
N 71'09'25" E
27.84'
�I
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3;1
1
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x x Dip -----------
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ALL SLOPES GREATER THAN 48
3:1 MUST BE STABILIZED / / / — — \ I / O
WITH LOW MAINTENANCE ' �/ // \\ 1 \ TS / �----
VEGETATIVE GROUND COVER ' / / / CE _ \
/ OTHER THAN GRASS, SUCH / , \ \ \\ \ \ PS TS R� DC MU J / // DC /
AS KENTUCKY BLUEGRASS
/
' \'�s / / /-440
�' -40-
00,
ALL SLOPES GREATER—
r BELVEDERE \ / THAN 3:1 MUST BE
/ � / STABILIZED WITH LOW
PHASE 5A �/� / MAINTENANCE VEGETATIVE
GROUND COVER OTHER / _
THAN GRASS, SUCH AS / � \
KENTUCKY BLUEGRASS
�A�,
t Oi I ���Ds
_ / \
PHASE 2 DRAINAGE
, `� \ \' AREA TO SB-1: 3.80 AC.
11�P 5E N�,/ � , \ ♦f \ \ � // � — (SEE SEDIMENT BASIN
,�� % \ �Za0 / /' OPER Y ��♦\ \ \ \\ / /' /'; _� _ _ _ _ _ _ �' \ \ CALCULATIONS) SB-1
Bonnet \ I 1 \
OF
455.10
Irant
/' /' /\\ \\ \\ \ ROPOSEb SAFETY FENCE,
\ �Z \
0 \ \ \\ \ / // // ,/ /--\ \\ \\ \ IRISTALL SIGNS "WARNING i / // / \ \O?
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0 A6 n� / i I ♦ T K x x x x xx—x x,—x>f x x�xx— I I 1 \ ACRE
\ [— x x x x x
LIMITS OF DISTURBANCE 14.46 ACRES
\ \\ RET. WALL & \ \ \ \ \_— —
C I �l\� / GEOFA'BRIC
\ALL SLOPES GREATER THAN 3:1 MUST BE\O \ SITEPLAN AOR STABILIZED WITH LOW MAINTENANCE
OP MORE PETAILS) VEGETATIVE GROUND COVER OTHER THAN 36 o
\\ \\ \
/
GRASS, SUCH AS KENTUCKY BLUEGRASS
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PVTH OF.
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DATE:
06-11-2020
SCALE:
1 "=30'
FILE:
WPO-2020-00034
RGA#:
8438
SHEET: 7 OF18
EROSION CONTROL PLAN LEGEND
3.02
F3. 0 2]C
CE
NS UC I N
ENTRANCE
3.03
CONSRUCTIN
ROADTSTABILIZATION
CRS
3.05
SILT FENCE
SF
3.07
F3-0]7STORM
DRAIN
INLET PROTECTION
IP
3.09
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DISTANCE
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N 81 `23'05" E
26.04'
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RGA#:
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9 OF18
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*REFERENCE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK (VESCH)
FOR DETAILS REGARDING INDIVIDUAL CONTROL MEASURES.
STEEP SLOPES (MANAGED)
LlSTEEP SLOPES (PRESERVED)
BOUNDARY LINE INFORMATION
LINE
BEARING
DISTANCE
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N 81'23'05" E
26,04'
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SHEET:
10 OF 18
EROSION CONTROL PLAN LEGEND
3.02
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CONSTRUCTI
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3.38
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BOUNDARY LINE INFORMATION
LINE
BEARING
DISTANCE
L1
N 81'23'05" E
26.04'
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S 29`18°35" E
27.36'
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27.84'
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RGA#:
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1 1 OF18
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B/M 1 TO BE INSTALLED ON CONSTRUCTED SLOPE
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26,04'
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ALL SLOPES GREATER
\ THAN 3:1 MUST BE
�Dr -� F •/ �� ' STABILIZED WITH LOW
\ \G 40r_ S k MAINTENANCE VEGETATIVE
''- GROUND COVER OTHER
THANo 1l ���
I��� F _ _ rL_ "' -�'y \ aA0 KENTUCKYSBLUEGRASSS
Q`� , SUCH
'/ HO.,S OE RING OF-
Off(,- Nj P 5 ' ✓ - o AGGRE ATE PROPOSED SWM EASEMENT
(SEE SHEET 18) i - - m ? '
/
/
yy b g
\ 1 - o \ �O�' ,'�F� \ �\ o \ /i i �/i Right Front Bonnet \ I I PR 01 /
PROPOSED TEMPORARY GRADING AND
/ CONSTRUCTION EASEMENT P� /. BM ELEV: 455.10 / ��, \ \ NQRNO�'2 /
/ ALBEMARLE COUNTY GIS P /O\� \ o Bolton Hydrant
P \ 2
MANGED SLOPES
/ .\ f • ,�� \ � P � ply
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NOTE LOT 245 THROUGH 254:
'f
ALL TOWNHOUSE AND VILLA UNIT P \ \
\ \ O ROOF DRAINS SHALL TIE-IN TO �GR�S \
.THE PRIVATE STORM DRAINAGE
PIPES. WHERE APPLICABLE, ALL \ / / / %/ \ \\• \\i'\ \ \ \\ 1 \ \� f
FOUNDATION DRAINS FROM THE O / / �/ \\\• I \ \ \ 1 \
v A <\ G
ATTACHED UNITS SHALL TIE INTO , ( �/ \ I \ \ \ \ 1�
THE PRIVATE STORM DRAINAGE \ \ \ / / �\ \ V 1 \� \ \ SO
/'' / \.' \ \ G
PIPES AS WELL. (FROM \ \ \ / ` \ c� \ \ \ \ A 19 \ \
\ \ \ \ \ \ \\ \ � , •/ � APPROVED PHASE IIB PLAN
.
.\ / WP02016-71 AMENDMENT#2) \ \�/ �/ O� \\ \\\ \��\. ..\� V�\\
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DATE:
06-11-2020
SCALE:
1 "=30'
FILE:
WPG-2020-00034
RGA#:
8438
SHEET: 12 OF18
SB-
SEDIMENT BASIN-1
SEDIMENT BASIN S CHEMA TI C
ELE VA TIONS
DESIGN HIGH WATER
(25-YR. STORM ELEV.)
67 C.Y./ AC.
DRY STORAGE_
TOP WET STORAGE: 417.7 -
67 C.Y./ AC.
WET STORAGE
10' WIDE EMBANKMENT ® 425
MIN. 1.0'
0.5' MIN
MIN. 1.0'
SEDIMENT CLEANOUT POINT
( WET " STORAGE
REDUCED
34 C Yj ACRE) TO
CREST OF EMERGENCY
/ SPILLWAY ® 424
RISER CREST: 422
DEWATERING DEVICE
48" RISER
POND BOTTOM: 414
DESIGN ELEVATIONS WITH
EMERGENCY SPILLWAY
(2) ANTI -SEEPAGE
COLLARS 4.5'x4.5'
106LF-18" HP
PIPE ®4.719
1.1: 414
1.0: 409
I I
SOURCE: VA. DSWC PLATE. 3.14-2
L
ANTI- VORTEX DEVICE DESIGN
PRESSURE RELIEF
HOLES 1/2" DIA.
A 0
PLAN VIEW
D
TACKWELD
ALL AROUND
H
8" N.
#6 X 12"
SUPPORT BAR SIZE
SPACER BAR
(#6 REBAR MIN.)
PROVIDE ADEQUATE
STRAPPING
TACK WELD
TOP STIFFENER (IF REQUIRED)
IS-X-X-ANGLE WELDED
TO TOP AND ORIENTED PER -
In PENDICULAR TO CORRUGATIONS
TOP IS -GAGE CORRUGATED
METAL OR 1/8" STEEL PLATE.
PRESSURE RELIEF HOLES MAY
BE OMMITTED, IF ENDS OF
CORRUGATIONS ARE LEFT FULLY
OPEN WHEN THE TOP IS
ATTACHED.
CYLINDER IS -GAGE CORRUGATED
METAL PIPE OR FABRICATED FROM
1/8"
STEEL PLATE.
NOTES:
1. THE CYLINDER MUST BE
FIRMLY FASTENED TO THE
TOP OF THE RISER.
2. SUPPORT BARS ARE WELDED
TO THE TOP OF THE RISER
OR ATTACHED BY STRAPS
BOLTED TO TOP OF RISER.
ISOMETRIC
POLYETHYLENE CAP
PERFORATED POLYETHYLENE%
DRAINAGE TUBING, DIAMETER
VARIES (SEE CALCULATIONS IN
APPENDIX 3.14-A).
DEPTH
VARIES AS
REQUIRED
FOR" DRY
STORAGE
T WET
FERNCO-STYLE COUPLING STORAGE
DEWATERING ORIFICE,
SCHEDULE 40 STEEL STUB 1-FOOT MI IMUM,
DIAMETER VARIES (SEE CALCULATIONS IN
CORRUGATED METAL RISER APPENDIX 3.14-A)
NOTE: WITH CONCRETE RISER, USE PVC SCHEDULE 40 STUB
FOR DEWATERING ORIFICE
s
DRAINAGE TUBING SHALL COMPLY WITH ASTM F667
AND AASHTO M294
SOURCE: VA. DSWC
PLATE. 3.14-15
1992 3.14
DETAILS OF CORRUGATED METAL
ANTI -SEEP COLLAR
IWAa. ccu.w WIN
WIHIMalq,6 YERM:IL NWR TO 6E of SNNE 4WE /4 THE
PIPE WIN WINCH IT IS VSEO
camwucus w¢o
,/x NI anus Pox ,x' ru.
S/e e• DSAETER Ex BOLTS.
aDETs.
I-=
7-Q\
1,.
T
MD BOTH SIDES
SLBIIED Ipl6 OOR Z1 IET&
AT 4• C.C. SECTION B-B CENM Of MND
ELEVATION OF UNASSEMBLED COLLAR
3. UNASSEMBLED COLLARS SHALL BE MARKED BY
NOTES FOR COLLARS: PAINTING OR TAGGING TO IDENTIFY MATCHING
PAIRS.
1. ALL MATERIALS TO BE IN ACCORDANCE WITH 4. THE LAP BETWEEN THE TWO HALF SECTIONS
CONSTRUCTION AND CONSTRUCTION MATERIAL AND BETWEEN THE PIPE AND CONNECTING BAND
SPECIFICATIONS. SHALL BE CAULKED WITH ASPHALT MASTIC AT
2. WHEN SPECIFIED ON THE PLANS COATING OF TIME OF INSTALLATION.
COLLARS SHALL BE IN ACCORDANCE WITH 5. EACH COLLAR SHALL BE FURNISHED WITH TWO
CONSTRUCTION AND CONSTRUCTION MATERIAL 1/2" DIAMETER RODS WITH STANDARD TANK
SPECIFICATIONS. LUGS FOR CONNECTING COLLARS TO PIPE.
DETAIL OF HELICAL PIPE
ANTI -SEEP COLLAR
Wm , ,/S ;x , vs- x I ,/e ulcus To WILNN OR SEND A xW
SIZE AND SPACING OF SLOTTED4WME&T.WU&
,/S WIDE AS SHIM IN DRAW,Nn.
OPENINGS SHALL BE THE SAMENOTE FOR BANDS AND COLLARS:
AS SHOWN FOR CM COLLAR.,/S MODIFICATIONS OF THE DETAILS
USE RODS AND LUGS TO CLAMPSHOWN MAY BE USED PROVIDING
BANDS SECURELY TO PIPE.. EQUAL WATERTIGHTNESS IS
MAINTAINED AND DETAILED
DRAWINGS ARE SUBMITTED AND
APPROVED BY THE ENGINEER PRIOR
TO DELIVERY.
ISOMETRIC VIEW
O SIVIl aE OUT To iR
xa0 AID uwnx n ca,Ie,uous wEin.
NOTE: FOR DETAILS OF FABRICATION DIMENSIONS, MINIMUM GAGES.
SLOTTED HOLES, AND NOTES, SEE DETAIL ABOVE.
WET& crounx To RE NOTE: TWO OTHER TYPES OF ANTI -SEEP COLLARS ARE:
W 10 TO cnxEN Oi
xEurx PIPE arWO 1. CORRUGATED METAL, SIMILAR TO UPPER, EXCEPT SHOP
WELDED TO A SHORT (4FT.) SECTION OF THE PIPE AND
CONNECTED WITH CONNECTING BANDS TO THE PIPE.
PARTIAL ELEVATION 2. CONCRETE, SIX INCHES THICK FORMED AROUND THE PIPE
REF,ENOR EEw uuu WITH #3 REBAR SPACED 15" HORIZONTALLY AND VERTICALLY.
SOURCE: USDA-SCS
ANTI -SEEP COLLAR
SATURATED ZONE
CONNECTIONS BETWEEN
THE ANTI -SEEP AND
THE BARREL MUST BE
WATERTIGHT
VA.
PLATE. 3.14-13
PLATE. 3.14-4
RISER PIPE BASE CONDITIONS
SOURCE: VA. DSWC
TYPICAL CONCRETE BASE
SEDIMENT BASIN/DRY POND CONSTRUCTION
NOTES
1. GEOTECHNICAL CONSULTANT TO SPECIFY DAM EMBANKMENT MATERIAL, SEEPAGE
CONTROL DEVICES, CUT-OFF TRENCH DESIGN, CULVERT BEDDING REQUIREMENTS,
AND OTHER APPROPRIATE GEOTECHNICAL DESIGN REQUIREMENTS.
2. IMPERVIOUS CORE SHALL EXTEND TO THE 10-YR WATER SURFACE ELEVATION
UNLESS OTHERWISE NOTED.
3. FOUNDATION AND ABUTMENT AREA EXTENDING 10' BEYOND DAM FOOTPRINT SHALL
BE CLEARED, GRUBBED AND STRIPPED OF ALL VEGETATION TOPSOIL AND/OR
ORGANIC SOIL AND OTHER UNSUITABLE MATERIALS.
4. AFTER CLEARING, GRUBBING, STRIPPING, AND REMOVING ANY OTHER UNSUITABLE
MATERIALS, THE SUBGRADE SHALL BE PROOF -ROLLED WITH COMPACTION EQUIPMENT
UNDER THE OBSERVATION OF A QUALIFIED ENGINEER. THE COMPACTION EQUIPMENT
SHALL CONSIST OF THE HEAVIEST POSSIBLE EQUIPMENT THAT WILL NOT CAUSE
DISTURBANCE OF SUITABLE SUBGRADE SOILS. EXCESSIVELY SOFT OR UNSUITABLE
MATERIALS SHALL BE REMOVED AND REPLACED WITH COMPACTED FILL. WHERE ROCK
IS EXPOSED AFTER STRIPPING OR UNDERCUTTING, ALL LOOSE ROCK MATERIAL
SHALL BE REMOVED PRIOR TO PLACING COMPACTED FILL. ROCK SUBGRADES SHALL
BE INSPECTED AND APPROVED BY INSPECTOR OR ENGINEER PRIOR TO PLACEMENT
OF FILL.
5. COMPACTED FILL SHALL NOT BE PLACED PRIOR TO PERFORMING THE REQUIRED
FOUNDATION AND ABUTMENT PREPARATION, OR ON ANY FROZEN SURFACE.
COMPACTED FILL SHALL EXTEND TO THE FILL LIMIT LINES AND GRADES INDICATED
ON THE APPROVED CONSTRUCTION PLAN. COMPACTED FILL MATERIAL SHALL BE OF
THE TYPE CLASSIFICATION SYMBOL SPECIFIED BY THE GEOTECHNICAL CONSULTANT,
OR OF A BETTER QUALITY MATERIAL AS DEFINED BY THE UNIFIED SOIL
CLASSIFICATION SYSTEM (USCS). RESTRICTIONS ON LIQUID LIMIT AND PLASTICITY
INDEX OF MATERIAL MAY BE INCLUDED WHERE APPLICABLE. COMPACTED FILL SHALL
CONSIST OF MATERIAL FREE OF ORGANIC MATTER, RUBBISH, FROZEN SOIL, SNOW,
ICE, AND PARTICLES WITH SIZES LARGER THAN 3" OR ANY OTHER DELETERIOUS
MATERIAL.
6. COMPACTED FILL SHALL BE PLACED IN HORIZONTAL LAYER of 10"-12" IN LOOSE
THICKNESS. ACTUAL LIFT THICKNESS SHALL BE SPECIFIED BY THE GEOTECHNICAL
CONSULTANT. THE MOISTURE CONTENT SHALL BE CONTROLLED SUCH THAT
COMPACTION IS ACHIEVED WITHOUT YEILDING OF THE SURFACE. EACH LAYER SHALL
BE UNIFORMLY COMPACTED WITH SUITABLE COMPACTION EQUIPMENT TO AT LEAST
95% OF STANDARD PROCTOR MAXIMUM DENSITY IN ACCORDANCE WITH ASTM D-698,
AASHTO T-99, OR VDOT SPECIFICATIONS. ANY LAYER OF FINE GRAINED FILL WHICH
BECOMES SMOOTH SHALL BE SACRIFICED TO A DEPTH OF 2" TO ALLOW ADEQUATE
BONDING BETWEEN LAYERS.
7. COMPACTED FILL WITH A MOISTURE CONTENT WHICH WILL NOT PERMIT COMPACTION
TO THE SPECIFIES DENSITY STANDARD SHALL BE SACRIFICED, DRIED, OR WETTED AS
NECESSARY TO PERMIT PROPER COMPACTION.
OP OUTLET PROTECTION SPECIFICATIONS
1 �� L /Q
In ' CL I R RAP ROUTED 410=0.935 ICES
° % 4" MIN. DEPTH t-18" PIPE
I, 5W/UNDERLYING F.F
APRON LENGTH = 10' OP#1
3DO = 4.5'
LA= 10'
W=DO+LA= 14.5
SEDIMENT BASIN #1:
SEDIMENT BASIN #1 IS DESIGNED FOR 6.76 ACRES OF DRAINAGE.
THE DRAINAGE AREA TAKES INTO ACCOUNT THE REMOVAL OF
SEDIMENT TRAPS THROUGH DIFFERENT PHASES OF THE EROSION
AND SEDIMENT CONTROL PLAN.
TOP DAM = 425.00
BOTTOM = 414.00
BOTTOM WIDTH = 34'
DRAINAGE AREA TO SB #1: 6.76 ACRES
DRY(WET STORAGE REQUIRED: 453 c.y.
TOTAL STORAGE REQURIED: 9W c.y.
PROVIDED STORAGE: 3309 c.y.
CLEAN OUT ELEVATION: 416.50
SLOPES: 3:1
PRINCIPLE SPILLWAY: 48" RISER
DIAMETER TRASH RACK/ANTI-VORTEX DEVICE DESIGN: 72 INCHES
TEMPORARY SEDIMENT BASIN
PROJECT Belvedere Phase 5 PROJ NO
BASIN # SEDIMENT BASIN SB-1 DATE
LOCATION BY
U12111
DRAINAGE AREA 6.76 ac
TOTAL STORAGE REQUIRED 905.84 cy
BASIN VOLUME DESIGN
WET STORAGE
1. MINIMUM REQUIRED VOLUME FOR WET STORAGE 452.92 cy
2. AVAILABLE BASIN VOLUME
AVERAGE END AREA- BASIN VOLUME ESTIMATES
Top of wet storage
ELEVATION
ft
AREA
Sf
VOLUME
cf
VOLUME
Cy
TOTAL
cy
414
1,610.00
4,420.00
163.70
416
2,810.00
163.70
4,267.50
158.06
_
417
_
5,725.00
_
j 321.76
4,244.10
157.19
417.7
1 6,401.00
478.95
1,965.15
72.78
418
6,700.00
551.73
35,734.00
1,323.48
422
11,167.00
1,875.21
38,724.00
1,434.22
425
14,649.00
3,309.44
8438
8/17/2020
RV
REQUIRED WET STORAGE VOLUME
452.92 cy
PROVIDED AT APPROX. ELEVATION
417.70
4.
AVAILABLE VOLUME BEFORE CLEANOUT REQUIRED
223.08 cy
5.
ELEVATION CORRESPONDING TO CLEANOUT LEVEL
416.40
6.
DISTANCE FROM DEWATERING ORIFICE TO C/O LEVEL
1.00
INVERT DEWATERING ORIFICE R'QD
417.40 Min. Elevation Req'
INVERT DEWATERING ORIFICE USED
417.70 at Wet storage elevation
APPROX. VOLUME AT INVERT USED
478.95 cy
DISTANCE FROM INVERT TO C/O LEVEL
1.30 ft
DISTANCE ACCEPTABLE
WET STORAGE VOLUME ACCEPTABLE
DRY STORAGE
7.
MINIMUM REQUIRED VOLUME
452.92 cy
8.
TOTAL AVAILABLE VOLUME AT CREST OF RISER
CREST OF RISER
422.00 Top of dry storage
APPROX. AVAILABLE TOTAL VOLUME
1875.21 cy
ADEQUATE DRY STORAGE VOLUME
9.
DIAMETER OF DEWATERING ORIFICE
Q (From Dewatering Sheet)
1.75 cfs
d (From Dewatering Sheet)
6.74 in
USE d
8 in (Never less than 3 inches)
10.
DIAMETER OF FLEXIBLE TUBING
10 in (minimum 2 inches larger)
STANDARD SIZE
PRELIMINARY DESIGN
11.
PRELIMINARY DESIGN ELEVATIONS:
CREST OF RISER 422.00 ft
TOP OF DAM 425.00 ft
DESIGN HIGH WATER 423.00 ft
"design of high water assumes a peakflowrate
UPSTREAM TOE OF DAM
414.00 ft
BASIN SHAPE
12. LENGTH OF FLOW / EFFECTIVE WIDTH:
SURFACE AREA OF NORMAL POOL
6401 sf (wet storgae)
LENGTH OF FLOW PATH
78 ft
EFFECTIVE WIDTH
82 ft
L/We
0.95 BAFFLES REQUIRED B PROVIDED
RUNOFF
(RATIONAL METHOD CALCULATION)
USE MAXIMUM C VALUE DURING CONSTRUCTION AND MINIMUM Tc VALUE
13. FLOW FROM 2-YEAR STORM (from Hydro software)
C:
0.60
Tc: 7.7 I:
3.4 in/hr
Q=
15.9 cfs (from Hydraflow software)
14. FLOW FROM 25-YEAR STORM
C:
0.60
Tc: 7.7 I:
6.8 in/hr
Q=
21.2 cfs (from Hydraflow software)
PRINCIPAL SPILLWAY DESIGN
15. REQUIRED SPILLWAY CAPACITY:
EMERGENCY SPILLWAY? (Y/N)
Y
REQUIRED SPILLWAY CAPACITY:
15.9 CFS
16. ASSUMED AVAILABLE HEAD:
ELEV. OF CREST OF E.S. IF USED:
424.00
ASSUMED AVAILABLE HEAD=
2.00 ft
17. RISER DIMENSIONS:
RISER DIAMETER: 48.00 in (From Plate 3.14-8 or Calcs)
ACTUAL MAX. ELEV.: 422.55 ft (From Calcs if appropriate)
ACTUAL HEAD: 1.45 ft (From Plate 3.14-8 or Calcs)
18. BARREL LENGTH:
BARREL LENGTH: 106.00 ft
BARREL INVERT OUT: 409.00 ft
HEAD H ON BARREL: 15.00 ft (From Plate 3.14-7)
19. BARREL DIAMETER:
BARREL DIAMETER: 18 in (From Plate 3.14A or 3.14B)
EMERGENCY SPILLWAY DESIGN
21. REQUIRED SPILLWAY CAPACITY:
Qe = Q(25)-Qp = 5.2 CFS
22. DIMENSIONS:
BOTTOM WIDTH (b):
10.00 ft
(From Table 3.14-C)
SLOPE OF EXIT CHANNEL (s):
3.90 ft/ft
(From Table 3.14-C)
MIN. LENGTH EXIT CHANNEL (x):
33.00 ft
(From Table 3.14-C)
ANTI -SEEP COLLAR DESIGN
23. DIMENSIONS:
DEPTH WATER @ CREST OF P.S. (Y): 1.00 ft
SLOPE UPSTREAM FACE DAM (Z): 3.00 :1
SLOPE P.S. BARREL (Sb): 4.72 %
LENGTH BARREL IN SAT. ZONE (Ls): 62.00 ft (From Plate 3.14-11)
Number of collars req: 2.00 (From Plate 3.14 12)
Dimensions: 4.50 ft (From Plate 3.14-12)
FINAL DESIGN ELEVATIONS
I'4.'m=1III AT/-AIWI! z'
TOP OF DAM:
425.00 ft
DESIGN HIGH WATER:
422.55 ft
EMERGENCY SPILLWAY CREST:
424.00 ft
PRINCIPAL SPILLWAY CREST:
422.00 ft
DEWATERING ORIFICE INVERT:
418.00 ft
CLEANOUT ELEVATION:
416.50 ft
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DESIGNED BY:
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DRAWN BY:
CHECKED BY:
UVN/JLF
JLT
DATE:
06-11-2020
SCALE:
1 ":30'
FILE:
wPa-2020-00034
RGA#:
8438
SHEET:
13 OF 18
CLEAN WATER DIVERSION
SILT FENCE CULVERT INLET
PROTECTION
ENDWALL
sF SILT FENCE
CONSTRUCTION OF A SILT FENCE
(WITHOUT WIRE SUPPORT)
1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH
UPSLOPE ALONG THE LINE OF
STAKES.
6'MAX.
FLOW r
STONE CONSTRUCTION ENTRANCE
XISTING GROUND
70' MIN.
A
FILTER CLDTH� 6" MIN.I A
SIDE ELEVATION
EXISTING
PAVEMENT
3
5:1 V
MOUNTABLE BERM
(OPTIONAL)
4" 70' MIN.
3. STAPLE FILTER MATERIAL 4. BACKFILL AND COMPACT
Source: Va. DSWC Plate 3.12-1 TO STAKES AND EXTEND THE EXCAVATED SOIL. B 10, MIN•
IT INTO THE TRENCH. WASHRACK
F_ (OPTIONAL)
* 1T(1111110' MIN,
sT TEMPORARY SEDIMENT TRAP _ _ - r - 12' MIN. IIEXISTING
o I - PAVEMENT
°
TOE OF FILL / III -�^ III
SILT FENCE � o o � VDOT #1 �� POSITIVE DRAINAGE 1�N•
DISTANCE IS 6' MINIMUM IF FLOW MINIMUM TOP WIDTH (! /) �-
COURSE AGGREGATE TO SEDIMENT - I -
IS TOWARD EMBANKMENT _ - � B `Y
REQUIRED FOR SEDIMENT II = -111 u•• TRAPPING DEVICE I I
FLOW SHEET FLOW INSTALLATION *MUST EXTEND FULL WIDTH
�c TRAP EMBANKMENTS (PERSPECTIVE VIEW) OPERATIONOF S AND EGRESS PLAN VIEW
OPTIONAL STONE COMBINATION ACCORDING TO HEIGHT OF _12'MIN._
1.0' 1 1.5'
EMBANKMENT (FEET)
ST-1 ST-2
w
FLOW
H HO W
2.5'
_____________
1.5 0.5 2.0
2.0 1.0 2.0
2.5 1.5 2.5
3.0 2.0 2.5
3.5 2.5 3.0
*VDOT #3, #357, #5, #56 OR #57 COARSE AGGREGATE CLASS I RIPRAP
^' H.0
H 4.0 3.0 3.0
TO REPLACE SILT FENCE IN " HORSESHOE " WHEN
4.5 3.5 4.0
HIGH VELOCITY OF FLOW IS EXPECTED
5.0 4.0 4.5
SOURCE: ADAPTED from VDOT Standard Sheets and Va. DSWC
RR RIPRAP
PLATE. 3.08-1
TOE REQUIREMENTS FOR
BANK STABILIZATION
FILTER CLOTH UNDERLINER (PREFERRED)
GRANULAR FILTER
SOURCE: Adapted from VDOT Drainage Manual
PLATE. 3.19-1
SOURCE: VA. DSWC
ST-1 ST-2
ORIGINAL
GROUND
ELEV.
PORAR Y SEDIMENT TRAP
1'l VARIABLE*
PLATE. 3.13-1
ORIGINAL I VARIABLE
GROUND
ELEV.
\ 67 CU. YD./ACRE
N VARIABLE
67 CU. YD./ACRE } \
(EXCAVATED) 4' MAX. \FILTE'R CLOTH ORIGINAL
GROUND
ELEV.
*SEE PLATE 3.13-1 COARSE AGGREGATE CLASS I RIPRAP
CROSS SECTION OF OUTLET
CLASS I RIPRAP LENGTH (IN FEET) _
6 X DRAINAGE AREA
(IN AC.)
/DIVERSION
DIKE
�.'
COARSE AGGREGATE*•� / /j
�-
EXCAVATED el / / FILTER CLOTH
AREA
**COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5
OUTLET (PERSPECTIVE VIEW)
SOURCE: VA. DSWC
PLATE. 3.13-2
SF/STONE NOT REQUIRED AFTER SLOPES ARE STABILIZED DOWNSLOPE OF OUTFALL
POINTS A SHOULD BE HIGHER THAN POINT B.
DRAINAGEWAY INSTALLATION
(FRONT ELEVATION)
R Adapted from Installation of Straw and Fabric Filter Barriers for Sediment ControlYA. DSWC PLATE. 3.10-2
PERMANENT SEEDING FERTILIZATION
Ps AND MAINTENANCE
TABLE 24
Maintenance Fertilization for Permanent Seedings
Use Soil Test Recommendation or Rates Shown Below
Seeding Mixture
Formulation
Lbs. per
Lbs. per
Time
Mowing
Acre
1000 sf
Tall fescue makes
10-10-10
500
11.5
Yearly, or as
*Not closer than 3" if
up 70% or more
or
400
9.2
needed fall
occasional mowing is
of cover.
30-10-10
desired.
Crownvetch
Spring the year
Do not mow crownvetch
Service lespedeza
0-20-0
400
9.2
following
establishment
Birdsfoot trefoil
and every 4-5
years thereafter.
Fairly uniform
Fall the year
Not required. not closer
stand of Tall
following
than 4" if occasional
Tescue & Service
5-10-10
500
11.5
establish- ment
mowing is desired, and
lespedeza, or
and every 4-5
then in fall after seed
Birdsfoot Trefoil.
years thereafter.
has matured.
Weeping
Spring the year
Not required. not closer
Lovegrass &
following
than 4" if occasional
Service lespedeza
5-10-10
500
11.5
establishment
mowing is desired, and
fairly uniform plant
and every 3-4
fall after sericea has
distribution
years thereafter.
matured.
Red & chewings
20-10-10
250
5.8
September, 30
Mow no closer than 2"
for red fescue and Ky
fescue, Kentucky
days later
December, May
bluegrass; and closer
bluegrass, hard
20-10-10
100
2.3
20-June-30, if
than 3" for fescue.
fescue mixture:
needed.
Ts TEMPORARY SEEDING MIXTURES FOR THE
PIEDMONT AREA
TABLE 26
TEMPORARY SEEDINGS BY RATES, DEPTHS, AND DATES
Seeding Rate
Planting
depth (1)
Seeding zones (Q and Seeding Date Q
Species M
Per
Lbs/1000
7a and 7b
6b
6a and 5b
acre
Sq. ft
(Inches)
2/1-
5/1-
8/15-
3/1-
5/1-
8/15-
3/15-
6/1-
8/1-
4/30
1 8/14
11130
4/30
8114
11/15
5/31
7131
10/31
Choose one:
BY
BY
BY
Barley
2.5 bu.
2.80
1-2
X
-
10115
X
-
10115
X
-
1011
Oats
3 bu.
221
1-2
X
-
-
X
-
-
X
-
-
Rye (4)fbu3j222
1-2
X
-
X
X
-
X
X
-
X
barley or
Rye Plus
1
X
X
10/15
X
X
10/15
X
X
10/1
FoxtailX
X
X
X
X
X
X
X
X
millet 5Weeping
1/4-1/2
-
X
-
-
X
-
-
X
-
lovegrassAnnualsS
AnnuryegralMillet
114-1/2
X
-
11/1
X
-
11/1
X
-
8115
(7)5
112
-
X
-
-
X
-
-
X
-
(1) Applicable on slopes of 3:1 or flatter
(2) Refer to figure A - Adopted from USDA, ARS Miscellaneous Publication #1475, January 1990
(3) Between fall and spring seeding dates, use mulch only if ground is frozen and reseed when thawed
(4) May be used as a nurse crop for late fall/early winter permanent seedings, add 56 Ibs/ac. to the permanent
seeding mixture
(4) Maryland State Highway Administration Temporary Seed Mix
(5) May be used as a nurse crop for mid -summer permanent seedings. Add 2 Ibs/ac to permanent seed mix.
(6) May be used as a nurse crop for mid -summer permanent seedings. Add 10 Ibs/ac. to the permanent seeding
mix.
REINFORCED CONCRETE' DRAIN SPACE
SECTION B-B
SOURCE: ADAPTED from 1983 Maryland Standards for Soil erosion and Sediment Control, and Va. DSWC
PERMANENT SEEDING MIXTURES FOR
Plate 3.02-1
Ps THE PIEDMONT AREA
TABLE 25 TOTAL LBS. PER ACRE
MINIMUM CARE LAWN -COMMERCIAL OR RESIDENTIAL 175-200 LBS.
- KENTUCKY 31 OR TURF -TYPE TALL FESCUE 95-100%
- IMPROVED PERENNIAL RYE GRASS 0-5°k
- KENTUCKY BLUEGRASS 0-5°k
HIGH MAINTENANCE LAWN 200-250 LBS.
- KENTUCKY 31 OR TURF -TYPE TALL FESCUE 100°k
GENERAL SLOPE (3:1 OR LESS)
- KENTUCKY 31 FESCUE 128 LBS.
- RED TOP GRASS 2 LBS.
- SEASONAL NURSE CROP* 20 LBS.
LOW -MAINTENANCE SLOPE (STEEPER THAN 3:1)
- KENTUCKY 31 FESCUE 108 LBS.
- RED TOP GRASS 2 LBS.
- SEASONAL NURSE CROP* 20 LBS.
- CROWN VETCH** 20 LBS.
TOTAL 150 LBS.
'USE SEASONAL NURSE CROP IN ACCORDANCE WITH SEEDING DATES AS STATED
BELOW:
FEBRUARY 16TH THROUGH APRIL 30TH............ ANNUAL RYE
MAY 1ST THROUGH AUGUST 15TH ................ FOXTAIL MILLET
AUGUST 16TH THROUGH OCTOBER 31 ST........... ANNUAL RYE
NOVEMBER 1 ST THROUGH FEBRUARY 15TH ........ANNUAL RYE
««« SUBSTITUTE SERICEA LESPEDEZA FOR CROWNVETCH EAST OF FARMVILLE, VA
(MAY THROUGH SEPTEMBER USE HULLED SERICEA, ALL OTHER PERIODS, USE
UNHULLED SERICEA.) IF FLATPEA IS USED IN LIEU OF CROWNVETCH, INCREASE
RATE TO 30 LBS./ACRE. ALL LEGUME SEED MUST BE PROPERLY INNOCULATED.
WEEPING LLVEGRASS MAY BE ADDED TO ANY SLOPE OR LOW MAINTENANCE MIX
DURING WARMER SEEDING PERIODS; ADD 10- 20 LBS./ACRE IN MIXES.
SUGGESTED TEMPORARY SEEDING MIXTURE
FERTILIZER: 10-20-10: 1,000 LBS/ACRE
SEPTEMBER- FEBRUARY 15: 50% ANNUAL RYE & 50% WINTER RYE 100 LBS/ACRE
FEBRUARY 16-APRIL 30: ANNUAL RYE 100 LBS/ACRE MAY -AUGUST: GERMAN MILLET 50
LBS/ACRE OTHER OPTIONS EXIST, SEE VA EROSION AND SEDIMENT CONTROL HANDBOOK.
SUGGESTED PERMANENT SEEDING MIXTURE
LIME: 2 TONS/ACRE FERTILIZER: 10-20-10 1,000 LBS/ACRE
MARCH -MAY 15: KENTUCKY 31 FESCUE 200 LBS/ACRE, ANNUAL RYE 20 LBS/ACRE MAY
16-AUGUST 15: KENTUCKY 31 FESCUE 200 LBS/ACRE, FOXTAIL MILLET 20 LBS/ACRE
AUGUST 16-OCTOBER: KENTUCKY 31 FESCUE 200 LBS/ACRE, ANNUAL RYE 20 LBS/ACRE
NOVEMBER-FEBRUARY: KENTUCKY 31 FESCUE 200 LBS/ACRE, WINTER RYE 20 LBS/ACRE
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DESIGNED BY:
UVN/JLF
DRAWN BY:
UVN/JLF
'CHECKED BY:
JLT
DATE:
06-11-2020
SCALE:
NA
FILE:
wl=o-2020-00034
ROA#:
8438
.SHEET:
14 OF18
F/
Project Name: BELVEDERE PHASE 5
Date: 1 10/23/2020
6MP Design SpedJlcutims Lim: 2013 Draft Stds & Specs
Site Information
Post -Development Project (Treatment Volume and Loads)
Land Cover facresl
A Soils
B Soils
C Soils
D Soils
Totals
Fore#/Open Spsce (sues) -- m d,,twbed,
rotected forest o ens ace or reforested
0.00
Managed Turf (acres) --disturbed, graded
I., ands or other turf to be
9.19
9-�
Impervlwscwer(scres)
5.27
5.27
14.46
Annual Rainfall inches
43
Target Rainfall Event (inches)
1.00
Total Phosphorus(P) EMC tMA)
0.26
Total Nitrogen(TN) EMC(mg/Q
1.85
Tartiet7P Load(lb/acre/yr)
0.41
P (unitless correction factor)
0.90
I
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60 0 60 120
POST -DEVELOPMENT COVERAGE AREAS scA>E: i"=so'
POST -DEVELOPMENT LAND COVER SUMMARY
UMITS OF g acres
STORMWATER MANAGEMENT COMPLIANCE SUMMARY
THE CONSTRUCTION OF BELVEDERE PHASE 5, TMP 62-16D, WILL OCCUR IN TWO SEPARATE STAGES OF CONSTRUCTION. THE COMPLETED
SUBDIVISION WILL UTILIZE AN EXTENDED DETENTION FACILITY TO FACILITATE CHANNEL AND FLOOD PROTECTION. STORMWATER RUNOFF WILL
BE COLLECTED AND CONVEYED THROUGH A STORMWATER PIPE NETWORK TO THE FACILITY.
REGARDING WATER QUALITY ANALYSIS:
9VAC25-870-63. WATER QUALITY DESIGN CRITERIA REQUIREMENTS.
1. NEW DEVELOPMENT, THE TOTAL PHOSPHORUS LOAD OF NEW DEVELOPMENT PROJECTS SHALL NOT EXCEED 0.41 POUNDS PER ACRE PER
YEAR, AS CALCULATED PURSUANT TO 9VAC25-870-65.
CALCULATIONS SHOWN ON THIS PLAN WERE DETERMINED FROM ACCEPTABLE METHODOLOGY "DEQ VRRM FROM NEW DEVELOPMENT
COMPLIANCE SPREADSHEET -VERSION 3.0.rr
CONCLUSION:
BASED ON NEW DEVELOPMENT OF BELVEDERE PHASE 5 (A AND B), TMP 62-16D, SHOWN HEREON THESE PLANS, THE WATER QUALITY
PORTIONS OF THIS PLAN WILL BE SATISFIED WITH PURCHASING 9.68 IB/YR OF OFFSITE NUTRIENT CREDITS IN THE SAME OF ADJACENT
HYDROLOGIC UNIT CODE (02080204). COMPLIANCE OF 9VAC25-870-65.F:: OFFSITE ALTERNATIVE IAW 9VAC25-870-69 PURCHASE OF
NUTRIENT OFFSET CREDITS IS PROPOSED AND AFFIRMED.
III
Runoff fnlffirinnts (Rut
A Soils
BSoils
CSoils
DSoils
Fotie0openspace
0.02
0.03
0.04
0.05
Man d Turf
0.15
0.20
0.22
0.25
Impervious Cover
0.95
0.95
0.95
0.95
Wstrya Conservation
October 23, 2020
Steve Krohn
Belvedere Land Holdings LLC
PO Box 7505
Charlottesville, VA 22906
Re: Slate River Nutrient Bank Nutrient Offset Availability
Project Name: Belvedere Phase 5
Mr. Krohn,
This letter is to mnfirm the availability of authorized nonpoint nutrient offsets at the Slate River
Nutrient Bank located in Buckingham County. The Slate River Nutrient Bank has received
operational status through the Chesapeake Bay Watershed Nutrient Exchange Program (Virginia
Code § 62.1-44.19:12 et seq.) of the Virginia Department of Environmental Quality. DEQ approved
this project and issued a Nonpoint Nutrient Credit Generation Certification: Certificate No. James-
045 and an initial credit release for this project on January 14.2019. A further credit release was
released one year later, on January 2, 2020, upon meeting the success criteria as laid out by DEQ.
As of the date of this letter, Ostrya Conservation, Inc. has 91.22 pounds of phosphorus offsets and
305.31 pounds of nitrogen offsets available for transfer in the approved service area in the James
River watershed (including the following HII 020BD201 /Upper James; 02080202/Maury;
02080203/Middle James -Buffalo; 02060204/Rivamta; 02080205/Middle James -Willis; and
02080207/Appomattox). These offsets were certified pursuant to the Chesapeake Bay Watershed
Nutrient Exchange Program by the Virginia Department of Environmental Quality and the Virginia
Department of Conservation and Recreation to be used as compensation for state or local permit
water quality requirements. These offsets have been generated and are transferable according to §
10.1- 603.8:1 of the Code of Virginia.
Ostrya Conservation confirms, via this letter, that the Slate River Nutrient Bank is reserving 9,68
phosphorus credits (i.e., 9.68 pounds/year) for use on your Belvedere Phase 5 project. Reservation
of these credits is contingent on putting an "Agreement for Purchase and Sale of Nonpoint Nutrient
Offset Credits" in place with Ostrya Conservation, Inc, within one month of the date of this letter.
Please contact me with any questions
Sincerely,
James M. Eaton I Director
Phone:+1-708-703-2552
Email' mmes eatnn(nmstryarmnservatinrtcnm
Ostrya Conservation, tnc., P.O. Box 153,Scottsville VA 24590
data input cells\,
constant values
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DATE:
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SCALE:
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FILE:
WPO-2020-00034
RGA#:
8438
SHEET:
15 OF 18
/ //1 • \ \ \ \ REGARDING WATER QUANITY ANALYSIS FOR POINT OF DISCHARGE
�' \ \ \ ` COM
PLIANCE OF 9VAC25-870. B.1.B (CHANNEL PROTECTION) 1!`1
";,aAeb ' / - _ / \ IN ACCORDANCE WITH CHANNEL PROTECTION SECTION 6.3.A) OF 9VAC25-870-66 OF VIRGINIA LAW; THE
-ONE-YEAR - METHODOLOGY:
LAND- THE DISTURBING
UR
/ o2 rye '.
ACTIVITY APPEARS O ORBETENFAOCORDANCEWTHE ENOERGYSBOARANCOLMEWING
QDEVELOPED S I.F.* QPRE-DEVELOPED* RVPRE-DEVELOPED RVDEVELOPED
�i
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\ \ \ _ 0.064 5 0. 0. 38) /1.27
i M2 / -` r10
0.064 (1" ORIFICE)
S 0.144
0.497 (3" ORIFICE)
I � /
........- COMPLIANCE OF 9VAC25-870-68.0 (FLOOD PROTECTION
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STORMWATER INTO A CONVEYANCE SYSTEM THAT, FOLLOWING LAND DISTURBING ACTIVITY, CONFINES THE
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CLASS I RIP -RAP
PLUNGE POOL
OUTLET PROTECTION
APRON
OP
LENGHTH PER
OUTLET
PROTECTION DESIGN
FILTER CLOTH KEYED
INTO EXISTING GRADE
2 : 1
MAX. /�
1-2 INCH COURSE AGGREGATE
OR OTHER LINING AS
DESIGNED FOR STABILITY
PLAN VIEW
PRE -DEVELOPMENT X
DA#2 AREA = 2.59 ACRES
IMPERVIOUS = 2.59 ACRE!
PRE CN = 61
21.8 min
u V
�sv
TOP OF
LEVEL SPREADER
-SHALL BE FLAT
T
LENGTH OF LEVEL SPREADER LIP
TO BE BASED ON DESIGN FLOW
AND ALLOWABLE VELOCITY
OR
EXISTING OUTLET PROTECTION
APRON. WHICHEVER IS GREATER
TIMBERS
TREATED
TIMBERS
ALLOWABLE
ALLOWABLE DESIGN:
13 LF OF ELS PER i cfs
CALCULATED DESIGN:
ELS LENGTH =
(13') x (2.135 cfs) = 27.B'
MIN.
3' 3' B'
MIN. 10'MIN. MIN. MIN.
1 I�-I
12"MIN. ) i
18" CLASS I
RIP -RAP
SECTION VIEW
-,-I I - � 6 MBERSEATED
�jJJ•� TIMBERS
#4 REBAR TO SECURE
TIMBERS
k
NOTE REGARDING POST DEVELOPMENT
FLOW LEAVING STRUCTURE 42:
Q1 = 1.578 cfs
Q2 = 2.135 cfs
Q10 = 3.844 cfs
OUTLET PROTECTION (min) = 3.75' (3Do) x 8.5' (La) x 9.75' (W)
PreA:'
SHEET FL01
100ftQ4%
n = 0.8
9VAC25-870-66.6.3: CHANNEL PROTECTION
ENERGY BALANCE CALCULATIONS - 1 YEAR
DA AT POINT OF ANALYSIS
DA AT POINT OF ANALYSIS
DA AT POINT OF ANALYSIS
PRE -DEVELOPMENT CONDITIONS
POST -DEVELOPMENT CONDITIONS
POST -DEVELOPMENT CONDITIONS ROUTED
SITE AREA = 2.59 ACRES
SITE AREA = 7.35 ACRES
SCS METHOD (1" ORIFICE)
CURVE NUMBER (CN) = 61
CURVE NUMBER (CN) = 80
1-YR Q(PEAK) = 0.064 CFS
TIME OF CONCENTRATION = 21.8 MIN
TIME OF CONCENTRATION = 7.7 MIN
TIME TO PEAK = 24.13 HRS
VOLUME = 18,026 CU.FT
SCS METHOD
SCS METHOD
1-YR Q(PEAK) = 0.611 CFS
1 -YR Q(PEAK) = 14.75 CFS
TIME TO PEAK = 12.17 HRS
TIME TO PEAK = 12.00 HRS
VOLUME = 3,566 CU.FT
VOLUME = 33,751 CU.FT
9VAC25-870-66C: FLOOD PROTECTION
10 YEAR FOR FLOOD PROTECTION
DA AT POINT OF ANALYSIS
DA AT POINT OF ANALYSIS
DA AT POINT OF ANALYSIS
PRE -DEVELOPMENT CONDITIONS
POST -DEVELOPMENT CONDITIONS
POST -DEVELOPMENT CONDITIONS ROUTED
SCS METHOD
SCS METHOD
(1" EB-ORIFICE)
SITE AREA = 2.59 ACRES
SITE AREA = 7.35 ACRES
10-YR Q(PEAK) = 3.496 CFS
CURVE NUMBER (CN) = 61
CURVE NUMBER (CN) = 80
TIME TO PEAK = 12.53 HRS
TIME OF CONCENTRATION = 21.8 MIN
TIME OF CONCENTRATION = 7.7 MIN
VOLUME = 57,780 CU.FT
10-YR Q(PEAK) = 4.373 CFS
10-YR Q(PEAK) = 38.81 CFS
(3" EB-ORIFICE)
TIME TO PEAK = 12.13 HRS
TIME TO PEAK = 11.97 HRS
TIMER Q(PEAK) = 2.743 CFS
VOLUME = 16,187 CU.FT
VOLUME = 89,409 CU.FT
TIME TO PEAK = 12.73 HRS
VOLUME = 89,388 CU.FT
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DESIGNED BY:
UVN/JLF
DRAWN BY:
UVN/JLF
'CHECKED BY:
JLT
DATE:
06-11-2020
SCALE:
1':60"
FILE:
wpo-2020-00034
RGA#:
8438
SHEET:
16 OF 18
F/
14
3.0" ENERGY BALANCE
ORIFICE TO BE PLUGGED
DURING CONSTRUCTION
UNPLUG WHEN
CONVERTING TO POND
12 " X 1
TRASH RACK
TO SATISFY THE ENERGY
BALANCE EQUATION, SEE
SHEET 16, THE 1-YEAR FLOW
LEAVING THE POND CAN NOT
EXCEED 0.143 CFS. TO
SATISFY THE REQUIREMENT,
AN 1" X 1" ORIFICE IS
REQUIRED AT ELEVATION
414.1. DUE TO THE RISK OF
CLOGGING AND
MAINTENANCE ASSOCIATED
WITH SMALL ORIFICES; AND
DISCUSSIONS WITH COUNTY
ENGINEERING DEPARTMENT,
THIS DESIGN FIRM
RECOMMENDS THAT A
MINIMUM ORIFICE OF 3"
SHOULD BE USED. IF A 3"
ORIFICE IS USED, THE 1-YEAR
FLOW LEAVING THE SITE WILL
INCREASE TO, 0.497 CFS.
I\
Stage -Storage Report
Elev(Ft)
Storage(CF)
Total Storage(CF)
Area(SF)
414.000
0.000
0.000
1609
416.000
4417
4417
2808
417.000
3973
8390
5137
418.000
5752
14142
6367
419.000
7050
21191
7732
420.000
8276
29467
8820
422.000
19987
49454
11167
424.000
24908
74362
13741
425.000
14195
88557
14649
POND #1 STORAGE HAS BEEN SIZED TO
MEET WATER QUANTITY REQUIREMENTS FOR
THE FULL BUILD -OUT OF THE BELVEDERE
PHASE 5 (A AND B) DEVELOPMENT
48" RISER
I I
0000
00
00
O O O 0 �
0000
FRONT SECTION
TRASH RACK 1" HOLES
30% OPENING AREA
I I
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0
SIDE SECTION
CONVERT OF SB-1 TO DRY POND #1
ORIFICE TRASH RACK DETAIL
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DDOR .1.1 i VNWRW 2 . T.. C9EV'W 4 ,KLL'Jio H 14 E" P IM r4 ]T" IlM.
2. 4L -W alN Tr P0. THnM MR i KS ae"N p.YE'ER N LMMIt
Sx L wK A F ED, LOdfAE Kc 55 El wrn • WNy ra 2 CL:M
OKI
"<"'"" STORMWATER MANAGEMENT DETAILS TRASH RACK
R 1EMx E
FOR SWM DRAINAGE STRUCTURES R w " C>t: _ a 'S _` `T
]02 3EVI90Y
YN6.NIA LEVML,(xr OF iRIKGQfr Al bx O1,R
Trash Rack for SWM -
Drainage Structures
see sheet for details
10YR WSE = 422.11
DRY POND
2 1YR-EB WSE = 418.72
*Trash rack to be installed on orifice
as shown on details sheet.
**Impervious core and cutoff
trench shown for informational
purposes only. Final design to be
provided by geotechnical engineer.
DRY POND #1 DETAIL
(NOT TO SCALE) NOTE: TOP OF DAM TO BE COMPACTED TP 98%
COMPACTION, NO SETTLING WILL OCCUR.
Top of Dam Elev = 425
Pond
Embankment10' -
100YR WSE = 424.17 10' Wide Emergency Spillway = 424
Orifices for ponds should
'S face away from the dam '% Geotechnical Engineer
to determine
necessity of
\ impervious Core**
48'6 RCP
f'
RISER OP#1
106'-18" HP
Inv=414 Q 4.71%
� I Inv = 409 Rip -Rap
18"0 - 8.0' hick
Concrete Bose
-Embed 6"
in Concrete
3.0" Energy Balance
Orifice ® 414.1
Cutoff Trench**
oP OUTLET PROTECTION SPECIFICATIONS
�� R PRAP Q10 = 3.220 cfs
� � / /J
OP#1 24" MIN. DEPTH °*--18"PIPE
W/UNDERLYING F.F
APRON LENGTH = 10'
3D0 = 4.5'
LA= 10'
W= DO+LA= 14.5
STORMWATER POND CONSTRUCTION SEQUENCE:
THE FOLLOWING IS A TYPICAL CONSTRUCTION SEQUENCE TO PROPERLY INSTALL A DRY ED POND. THE STEPS MAY BE MODIFIED TO
REFLECT DIFFERENT DRY ED POND DESIGNS, SITE CONDITIONS, AND THE SIZE, COMPLEXITY AND CONFIGURATION OF THE PROPOSED
FACILITY.
1. USE OF ED POND AS AN E&S CONTROL. AN ED POND MAY SERVE AS A SEDIMENT BASIN DURING PROJECT CONSTRUCTION. IF THIS
IS DONE, THE VOLUME SHOULD BE BASED ON THE MORE STRINGENT SIZING RULE (EROSION AND SEDIMENT CONTROL REQUIREMENT
VS. WATER QUALITY TREATMENT REQUIREMENT). INSTALLATION OF THE PERMANENT RISER SHOULD BE INITIATED DURING THE
CONSTRUCTION PHASE, AND DESIGN ELEVATIONS SHOULD BE SET WITH FINAL CLEANOUT OF THE SEDIMENT BASIN AND CONVERSION
TO THE POST -CONSTRUCTION ED POND IN MIND. THE BOTTOM ELEVATION OF THE ED POND SHOULD BE LOWER THAN THE BOTTOM
ELEVATION OF THE TEMPORARY SEDIMENT BASIN. THE CONSTRUCTION NOTES SHOULD CLEARLY INDICATE THAT THE FACILITY WILL BE
DEWATERED, DREDGED AND RE -GRADED TO DESIGN DIMENSIONS AFTER THE ORIGINAL SITE CONSTRUCTION IS COMPLETE.
APPROPRIATE PROCEDURES SHOULD BE IMPLEMENTED TO PREVENT DISCHARGE OF TURBID WATERS WHEN THE BASIN IS BEING
CONVERTED INTO AN ED POND.
2. STABILIZE THE DRAINAGE AREA. FINAL GRADING AND CONSTRUCTION OF ED POND COMPONENTS SHOULD ONLY BE CONSTRUCTED
AFTER THE CONTRIBUTING DRAINAGE AREA TO THE POND IS STABILIZED.
3. ASSEMBLE CONSTRUCTION MATERIALS ON -SITE, MAKE SURE THEY MEET DESIGN SPECIFICATIONS, AND PREPARE ANY STAGING AREAS.
4. CLEAR AND STRIP THE PROJECT AREA TO THE DESIRED SUB -GRADE..
5. INSTALL E&S CONTROLS PRIOR TO CONSTRUCTION, INCLUDING TEMPORARY DE -WATERING DEVICES AND STORMWATER DIVERSION
PRACTICES. ALL AREAS SURROUNDING THE POND THAT ARE GRADED OR DENUDED DURING CONSTRUCTION MUST BE PLANTED WITH
TURF GRASS, NATIVE PLANTINGS., OR OTHER APPROVED METHODS OF SOIL STABILIZATION.
6. EXCAVATE THE CORE TRENCH AND INSTALL THE SPILLWAY PIPE.
7. INSTALL THE RISER OR OUTFLOW STRUCTURE AND ENSURE THE TOP INVERT OF THE OVERFLOW WEIR IS CONSTRUCTED LEVEL AT
THE DESIGN ELEVATION.
8. CONSTRUCT THE EMBANKMENT AND ANY INTERNAL BERMS IN 8 TO 12-INCH LIFTS, OR AS DIRECTED BY GEOTECHNICAL
RECOMMENDATIONS, AND COMPACT AS REQUIRED WITH APPROPRIATE EQUIPMENT.
9. EXCAVATE/GRADE UNTIL THE APPROPRIATE ELEVATION AND DESIRED CONTOURS ARE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES
OF THE ED POND.
10. CONSTRUCT THE EMERGENCY SPILLWAY IN CUT OR STRUCTURALLY STABILIZED SOILS.
11. INSTALL OUTLET PROTECTION, INCLUDING EMERGENCY AND PRIMARY OUTLET APRON PROTECTION.
12. STABILIZE EXPOSED SOILS WITH TEMPORARY SEED MIXTURES APPROPRIATE FOR THE POND BUFFER. ALL AREAS ABOVE THE NORMAL
POOL ELEVATION SHOULD BE PERMANENTLY STABILIZED BY HYDROSEEDING OR SEEDING OVER STRAW.
13.PLANT THE POND BUFFER AREA, FOLLOWING THE PONDSCAPING PLAN.
DAM CONSTRUCTION NOTES:
1. GEOTECHNICAL CONSULTANT TO SPECIFY DAM EMBANKMENT MATERIAL, SEEPAGE CONTROL DEVICES, CUT-OFF TRENCH DESIGN, CULVERT
BEDDING REQUIREMENTS, AND OTHER APPROPRIATE GEOTECHNICAL DESIGN REQUIREMENTS.
2. IMPERVIOUS CORE SHALL EXTEND TO THE 10-YR WATER SURFACE ELEVATION UNLESS OTHERWISE NOTED.
3. FOUNDATION AND ABUTMENT AREA EXTENDING 10' BEYOND DAM FOOTPRINT SHALL BE CLEARED, GRUBBED AND STRIPPED OF ALL
VEGETATION TOPSOIL AND/OR ORGANIC SOIL AND OTHER UNSUITABLE MATERIALS,
4. AFTER CLEARING, GRUBBING, STRIPPING, AND REMOVING ANY OTHER UNSUITABLE MATERIALS, THE SUBGRADE SHALL BE PROOF -ROLLED
WITH COMPACTION EQUIPMENT UNDER THE OBSERVATION OF A QUALIFIED ENGINEER. THE COMPACTION EQUIPMENT SHALL CONSIST OF
THE HEAVIEST POSSIBLE EQUIPMENT THAT WILL NOT CAUSE DISTURBANCE OF SUITABLE SUBGRADE SOILS. EXCESSIVELY SOFT OR
UNSUITABLE MATERIALS SHALL BE REMOVED AND REPLACED WITH COMPACTED FILL. WHERE ROCK IS EXPOSED AFTER STRIPPING OR
UNDERCUTTING, ALL LOOSE ROCK MATERIAL SHALL BE REMOVED PRIOR TO PLACING COMPACTED FILL. ROCK SUBGRADES SHALL BE
INSPECTED AND APPROVED BY INSPECTOR OR ENGINEER PRIOR TO PLACEMENT OF FILL.
5. COMPACTED FILL SHALL NOT BE PLACED PRIOR TO PERFORMING THE REQUIRED FOUNDATION AND ABUTMENT PREPARATION, OR ON ANY
FROZEN SURFACE. COMPACTED FILL SHALL EXTEND TO THE FILL LIMIT LINES AND GRADES INDICATED ON THE APPROVED CONSTRUCTION
PLAN. COMPACTED FILL MATERIAL SHALL BE OF THE TYPE CLASSIFICATION SYMBOL SPECIFIED BY THE GEOTECHNICAL CONSULTANT, OR OF
A BETTER QUALITY MATERIAL AS DEFINED BY THE UNIFIED SOIL CLASSIFICATION SYSTEM (USCS). RESTRICTIONS ON LIQUID LIMIT AND
PLASTICITY INDEX OF MATERIAL MAY BE INCLUDED WHERE APPLICABLE. COMPACTED FILL SHALL CONSIST OF MATERIAL FREE OF ORGANIC
MATTER, RUBBISH, FROZEN SOIL, SNOW,. ICE, AND PARTICLES WITH SIZES LARGER THAN 3" OR ANY OTHER DELETERIOUS MATERIAL.
6. COMPACTED FILL SHALL BE PLACED IN HORIZONTAL LAYER OF 8"-12" IN LOOSE THICKNESS. ACTUAL LIFT THICKNESS SHALL BE
SPECIFIED BY THE GEOTECHNICAL CONSULTANT. THE MOISTURE CONTENT SHALL BE CONTROLLED SUCH THAT COMPACTION IS ACHIEVED
WITHOUT YEILDING OF THE SURFACE. EACH LAYER SHALL BE UNIFORMLY COMPACTED WITH SUITABLE COMPACTION EQUIPMENT TO AT
LEAST 957 OF STANDARD PROCTOR MAXIMUM DENSITY IN ACCORDANCE WITH ASTM D-698, AASHTO T-99, OR VDOT SPECIFICATIONS. ANY
LAYER OF FINE GRAINED FILL WHICH BECOMES SMOOTH SHALL BE SACRIFICED TO A DEPTH OF 2" TO ALLOW ADEQUATE BONDING
BETWEEN LAYERS.
7. COMPACTED FILL WITH A MOISTURE CONTENT WHICH WILL NOT PERMIT COMPACTION TO THE SPECIFIES DENSITY STANDARD SHALL BE
SACRIFICED, DRIED, OR WETTED AS NECESSARY TO PERMIT PROPER COMPACTION.
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DESIGNED BY:
UVN/JLF
DRAWN BY:
UVN/JLF
'CHECKED BY:
JILT
DATE:
06-11-2020
SCALE:
NA
FILE:
WPO-2020-00034
RGA#:
8438
SHEET:
17 OF 18
MODIFIED SEDIMENT TRAP DESIGN
TOTAL REQUIRED BASIN STORAGE =134CY X 2.74 AC = 367 CY
TOTAL AVAILABLE BASIN STORAGE= 3,919 CY
WET STORAGE
REQUIRED HALF OF TOTAL STORAGE
MINIMUM 67 CY X 2.74 AC = 184 CY
SET WET STORAGE AT ELEVATION 432 WHICH CORRESPONDS TO THE TOP
OF THE RISER. 928 CY OF STORAGE IS AVAILABLE AT ELEVATION 432.
maltil�yl�[7�j���a�l_�IIs7��c=�8�3:�3i1'tiT�Zi7:7_[e7��1_\II1��a
DRY STORAGE
MINIMUM 67 CY X 2.74 AC = 184 CY
TOTAL DRY STORAGE AVAILABLE BETWEEN 432 - 440 = 2985 CY
EMBANKMENT TOP = 444 (ELEVATION OF FIRE ROAD)
EMBANKMENT WIDTH = 30 FEET (WIDTH OF FIRE ROAD)
STAGE STORAGE TABLE
ELEV
AREA
(sq. ft.)
DEPTH
(ft)
AVG END
INC. VOL.
(cu. ft.)
AVG END
TOTAL VOL.
(cu. ft.)
426.000
2,466.694
N/A
N/A
0.00
428.000
3,541.241
2.000
6007.94
6007.94
430.000
4,749.584
2.000
8290.83
14298.76
432.000
6,082.098
2.000
10831.68
25130.44
434.000
7,662.252
2.000
13744.35
38874.79
436.000
9,668.719
2.000
17330.97
56205.76
438.000
12,252.468
2,000
21921.19
78126.95
440.000
15,371.991
2.000
27624.46
105751.41
WATERSHED SUMMARY TO POA #2
PRE DEVELOPMENT
POST DEVELOPMENT
SITE AREA = 2.68 ACRES
SITE AREA = 2.74 ACRES
CURVE NUMBER (CN) = 65
CURVE NUMBER (CN) = 69
TIME OF CONCENTRATION = 9.9 MIN
TIME OF CONCENTRATION = 9.9 MIN
9VAC25-870-66.B.3: CHANNEL PROTECTION ENERGY BALANCE CALCULATIONS - 1 YEAR
PRE -DEVELOPMENT CONDITIONS
POST -DEVELOPMENT CONDITIONS
POST -DEVELOPMENT CONDITIONS ROUTED
1-YR Q(PEAK) = 1.597 CFS
1-YR Q(PEAK) = 2.42 CFS
1-YR Q(PEAK) = 0.77 CFS
TIME TO PEAK = 12.03 HRS
TIME TO PEAK = 12.03 HRS
TIME TO PEAK = 12.23 HRS
VOLUME = 5,169 CU.FT
VOLUME = 6,979 CU.FT
VOLUME = 6,959 CU.FT
9VAC25-870-66C: FLOOD PROTECTION - 10 YEAR
PRE -DEVELOPMENT CONDITIONS
POST -DEVELOPMENT CONDITIONS
POST -DEVELOPMENT CONDITIONS ROUTED
10-YR Q(PEAK) = 7.63 CFS
10-YR Q(PEAK) = 9.184 CFS
10-YR Q(PEAK) = 5.31 CFS
TIME TO PEAK = 12.03 HRS
TIME TO PEAK = 12.03 HRS
TIME TO PEAK = 12.13 HRS
VOLUME = 20,152 CU.FT
VOLUME = 24,036 CU.FT
VOLUME = 24,016 CU.FT
ENERGY BALANCE EOUATION:
QDEVELOPED 5 I.F.*(QPRE-DEVELOPED* RVPRE-DEVELOPED)/RVDEVELOPED
1YR QDEVELOPED
5
I.F.*
(1YR QPRE-DEVELOPED
* RV PRE-DEVELOPED)/RV DEVELOPED
0.772
5
0.80*
(1.597
* 0.515) / 0.680
0.772
5
0.97
cfs
010POST-DEVELOPED S Q1OPRE-DEVELOPED
5.31 cfs
5 7.63 cfs
HP STORM TRENCH INSTALLATION DETAIL
I I
MIN. COVER 1'0 MIN. L.OVER'1Ai
RI AD PAVEMEN 1 I, FLEXIBLE PAVEAIENR I I
- FINAL
/ hAi:NP1A rj
4✓RNCI NNE �. B-CKl
1 EeCXT6L
� HAUNID.
4" FOR 12"@4' PIPE BEDDING
A' FOR D': I' PIPE \
MIN T:2ENCF vNUrI• - SUITABLE
ISEE IASLE'. FOUNDATION
NOTES:
I. ALL PIPE SYSTEMS SHALL BE INSTALLED IN ACCORDANCE WITH ASTM 0232 1, 'STANDARD PRACTICE FOR UNDERGROUND
INSTALLATION OF THERMOPLASTIC PIPE FOR SEWERS AND OTHER GRAVITY FLOW APPLICATIONS LATEST ADDITION.
WITH THE EXCEPTION THAT THE INITIAL 13ACKFILL MAY EXTEND TO THE CROWN OF THE PIPE. SOIL CLASSIFICATIONS
ARE PER THE LATEST VERSION OF ASTM D2321. CUSS IVB MATERIALS (MM. CHI AS DEFINED IN PREVIOUS VERSIONS OF
ASTM D2321 ARE NOT APPROPRIATE BACKFILL MATERIALS.
2. MEASURES SHOULD BE TAKEN TO PREVENT MIGRATION OF NATIVE FINES INTO BACKFILL MATERIAL. WHEN REQUIRED.
3. FOUNDATION: WHERE THE TRENCH BOTTOM IS UNSTABLE. THE CONTRACTOR SHALL EXCAVATE TO A DEPTH REQUIRED
BY THE ENGINEER AND REPLACE WITH SUITABLE MATERIAL AS SPECIFIED BY THE ENGINEER. AS AN ALTERNATIVE AND
AT THE DISCRETION OF THE DESIGN ENGINEER. THE TRENCH BOTTOM MAY BE STABLEWD USING A GEOIEXTILE MATERIAL.
4. BEDDING: SUITABLE MATERIAL SHALL BE CLASS L 1, 11, OR N. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR
MATERIAL SPECIFICATION TO ENGINEER COMPACTION SHALL BE SPECIFIED BY THE ENGINEER IN ACCORDANCE WITH
TABLE 3 FOR THE APPLICABLE FILL HEIGHTS LISTED. UNLESS OTHERWISE NOTED BY THE ENGINEER. MINIMUM BEDDING
THICKNESS SHALL BE 4"(100mm)FOR Ir-24'(300mm,600mm)DIAMETER PIPE: e• 115Nnm1 FOR 3(r.W(750n 1500mm1
DIAMETERPIPE. THE MIDDLE V3 BENEATH THE PIPE INVERT SHALL BE LOOSELY PLACED. PLEASE NOTE. CLASS N
MATERIAL HAS LIMITED APPLICATION AND CAN BE DIFFICULT TO PLACE AND COMPACT' USE ONLY WITH THE APPROVAL OF
A SOIL EXPERT.
S. INITIAL SACKPILL: SUITABLE MATERIAL SHALL BE CLASS I. 1, a, OR IV IN THE PIPE ZONE EXTENDING TO THE CROWN OF THE
PIPE. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR MATERIAL SPECIFICATION TO ENGINEE R. MATERIAL SHALL
BE INSTALLED AS REQUIRED IN ASTM 023II. LATEST EDITION. COMPACTION SHALL BE SPECIFIED BY THE ENGINEER IN
ACCORDANCE WITH TABLE 3 FOR THE APPLICABLE FILL HEIGHTS LISTED. PLEASE NOTE. CLASS IV MATERIAL HAS lIMI7E0
APPLICATION AND CAN BE DIFFICULT TO PLACE AND COMPACP USE ONLY WITH THE APPROVAL OF A SOIL EXPERT.
S. MINIMUM COVER: MINIMUM COVER, H.IN NON -TRAFFIC APPLICATIONS GRASS OR LANDSCAPE AREAS) 15 12" 300mm) FROM
THE TOP OF PIPE TO GROUND SURFACE, ADDITIONAL COVER MAY BE REQUIRED 70 PREVENT FLOTATION. FOR TRAFFIC
APPLICATIONS: CLASS I OR II MATERIAL COMPACTED TO 90% SPD AND CLASS III COMPACTED TO 95% SPD IS REQUIRED.
FOR TRAFFIC APPLICATIONS. MINIMUM COVER, H. IS 12' (300mm) UP TO 48" (1200mm) DLW4ETER PIPE AND 24' (60umMJI OF
COVER FOR BO' IISOOmm) DIAMETER PIPE. MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT
OR TO TOP OF RIGID PAVEMENT.
7. FOR ADDITIONAL INFORMATION SEE TECHNICAL NOTE 2.04.
r.pinpc,ry: RE
ADVANCED DRAINAGE SYSTIShNk MG rADS'1 HAS PREPAREO THIS DVAIL BA9ED ON INFORMATION FRONDED TO ADS THIS Df (l IS
INTENDED TO DEPICT THE COMPONENTS AS REQUESTED. ADS HAS NOT FERFORNLED ANY EMiNEERNO OR DESIGN SERVICES FOR THIS
TABLE 1, RECOMMENDED MINIMUM TRENCH WIDTHS
PIPE DIAAL
MIN. TRENCH
WIDTH
17
30'
300mm
762nrm
15
34
375mm
f864rnm
1e•
39'
450mm
9
24"
Air 48'
BOOmtn
12
30'
V_
S6
1422mm
26I
7r
pl2ftn
1829mm
SO'
20321rNn
24 8mm)
TABLE 2, MINIMUM RECOMMENDED COVER BASED ON
VEHICLE LOADING CONDITIONS
SURFACE LIVE
LOADING CONDITION
HEAVY CONSTRUCTION
PIPE DIAM.
M-25
(75T AXLE LOAD)'
12"-48'
tY
48'
Wmm-1200mm
30`5rnm
1219mT
w4`
w1500mm
6IOmm)
(1524mm)
' VEHICLES IN EXCESS
OF 75T MAY REQUIRE
ADDITIONAL COVER
TABLE 3, MAXIMUM
COVER FOR ADS
HP STORM PIPE.
R
CLASS
CLASS 11
CLASS 10
CLASS
N
PIPE DIA
COMPACTED
95%
90%
85%
95%
1 90%
95%
IT
41
28
21
16
20
1B
16
(300mm)
(12.5m
IUM)
(6.4ml
ICBM)
OIAM)
(4.9m)
(4.8m1
15"
42
29
21
16
21
18
16
(375mm)
(12.8m)
(8.8m)
(6.4m1
(4.9m)
(6Am)
(4.9m)
(4.9m)
it
4d
30
21
16
22
17
16
(45W ")
(13.4m1
OAM)
(6.4ml
(4.9m)
(6.7m)
(5.2m)
(4.9m)
24-
37
26
IS
14
t.R
14
14
(600mm)
(11.3m)
(7.9m)
(5.5m1
4.3m)
(6.8m)
14.31n1
(4.3m)
30'
39
27
IS
14
19
I5
14
(750mm) 1
(11.9m)
(62m)
(5.8m1
(4.3m)
(5.8m)
(4.6m)
(4.3ml
39,
28
20
14
16
14
11
10
(wAltm)
(6.5m)
16.1ml
N.3m1
(3.0m)
(4.3m)
(3.4m)
MOM?
4r
30
21
14
10
15
11
f0
(1050mm)
(9,1m/
ISAmI
(&3m)
(3.0m)
(4.Bm)
(3.4m)
(310m)
48'
29
20
14
9
U
IO
10
(1?OOMM)
(B.&nl
(620
N.3m)
(2.7m)
(4.3n)
(3.Oml
(30111
DO'
29
20
14
9
14
10
9
1500ntm 1
6.em
! 1
l 6:Im )(
4.3m I
2.7m
I 1(
4.3m
3.Om
! 1
.7m
R )
FILL HEIGHT TABLE GENERATED USING AASHTO SECTION 12• LOAD
RESISTANCE FACTOR DESIGN (LRFO) PROCEDURE WITH THE FOLLOWING
ASSUMPTIONS:
NO HYDROSTATIC PRESSURE
UNIT WEIGHT OF SOIL rya) a 120 PCF
REV.MAxIW.00VERHEIGNIY RIND n1 .1:1]
DESCRIPR(W BY M�A•OD'YV CIIN'D
N HAS ADS INDEN£NOENTLVVERIFFD THE INFGNMATGNSUPPDED• iNE N81'ALlAi1GN DETAILS FRONDED 1ffAED1APEGENEIIAL TRENCH INSTALLATION
MTIONS AND ARE NOT SAECTFIC FOR TINS PROJECT. THE DESXtx ENGINEER SNAIL AEV[EW THESE OETALS PROR TO DETAIL (BP STORM)
ON. R 18 TINE DE WIN ENGINEER'S REBMiNBBLLJTV TO ENAIRE THE OETNLS FRONDED HEREIN NESTS OA EXCEEDS THE
NATIONAL STATE OR LOGAL REQUIREMENTS AND TO ENSURETHAT THE DETAILS FROVDED ItEPFIN ARE ACCEPTABLE FOR THIS
ORAv4NG rvun18ER: STD-10r0
I,
HILLARD, OHID8LV0
LLLUARp,OW04]1176
w. ww1 u W ree,..,nn.1,e
"Tu
,GF•
jVISIcgl
� .,g.I lllllrr
III I
I Y 1 \1 1 111I�IIIIIIIIj1I �.j{.I�f.r..
\1 \ \ \ \
\\\\\I\
PRE -DRAINAGE AREA TO POA#2: 2.E8
CN=65
Tc: I W sheet flow W/ A ELEV = 6
& 459 OF CONC. FLOW W/ A ELEV. -I
Tc: 9.9 min
PRE - O 1 year = 1.60 cis �l
PRE - O 10 year = 7.63 cis /
/
/ �♦� \ -, I i tidl\ I I SET \ �
FIRE ROAD PLAN VIEW
NARRATIVE:
THE EXISTING SEDIMENT TRAP (WPO-2016-00071) WILL BE MODIFIED AS SHOWN
HEREON THESE PLANS TO CAPTURES A DRAINAGE AREA OF APPROXIMATELY 2.74
ACRES. A 15" PIPE WITH A 48" RISER AND ANTI -VORTEX DEVICE WILL BE
INSTALLED. THE RISER WILL HAVE A 12" ORIFICE AT ELEVATION 426.10. THE
ORIFICE SATISFIES THE ENERGY BALANCE REQUIREMENTS.
DURING THE EROSION CONTROL PHASES, CONTRACTOR TO INSTALL A HORSESHOE
RING OF AGGREGATE AROUND THE RISER THAT WILL SERVE AS A FILTER FOR
WATER TO PASS THROUGH SIMILAR TO THAT FOUND WITH THE TRADITIONAL
SEDIMENT TRAP DESIGN.
THE STORMWATER QUANTITY REQUIREMENTS AT POINT OF ANALYSIS #2 (POA #2)
MEET THE MINIMUM CHANNEL AND FLOOD PROTECTION REQUIREMENTS SET FORTH
IN 9VAC25-870-66.
HORSESHOE RING OF AGGREGATE
(EROSION CONTROL PHASE)
c
1' 1.5'
COARSE AGGREGATE
ELEV = 429.00
3' HIGH
ELEV = 426.00
CLASS I RIPRAP
455
450
445
440
435
430
425
420
415
410
405
400
395
94
ez
20IlIC/DR INAGE/&/---
6AAI�TEj�1AiV0E/Ef�EIv1ENT
RE�+EjfifdP/BENCH // // // // / / i� �/� �� _ ✓
I�ACri Ark IT can
P03T bE'IIEUO / I / -
DRAINAGE AREAEA TO \ \'
ROUTED VIA CULVEFI T�\ �\ \
2.74 aC
�N \
Tc = 9.\C�N\=
FIRE ROAD PIPE PROFILE
HORIZ. SCALE: 1"=30'
VERTICAL SCALE: 1"=10'
x
1
--�
w
I
�
o
e
p
PROPOSED-9RE
14
ACCESS ROA
OF
WITH-R€VERn
- - - - -
-
SLOPE -BEN
000,
I B
y_.
Z_
L
�l
n/� o/�ppAD
lIIT1tY0-1 R
I
CD
a
I
75 10+00 11 +00 12
oP OUTLET PROTECTION
)SPECIFICATIONS
VDOT EW-1 HEADWALL
15" HP PIPE
Q1 = 0.772 cfs
Q2 = 1.708 cfs
Q10 = 5.308 cfs
455
450
445
440
435
48" RISER CREST ELEVATION
AT 432.00
430
425
420
BASIN BOTTOM & STABILIZED
FINISHED GRADE = 426.00.
415 RISER TO HAVE 12" LOW FLOW
ORIFICE AT ELEVATION 426.1
WHICH SATISFIES THE ENERGY
410 BALANCE REQUIREMENTS. TRASH
RACK TO BE INSTALLED OVER
ORIFICE
405
I®�
395
00
OUTLET PROTECTION IS SIZE IN ACCORDANCE
WITH PLATE 3.18-3 OF THE VIRGINIA EROSION
CONTROL MANUAL.
Wo = 15" * 3 = 3.75'
Lo = 8.5' MIN
W = Do + La = 1.25 + 8.5 = 9.75' *DESIGN
ENGINEER RECOMMENDS FULL CHANNEL WIDTH
MIN 8.5'
CL I RIPRAP
STANDARD EC-1 CLASS 1
REQUIRED TYPE A INSTALLATION
OUTLET PROTECTION
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RGA#:
8438
SHEET:
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SITE DATA
OWNER: BELVEDERE LAND HOLDINGS LLC
PO BOX 7505
CHARLOTTESVILLE, VA 22906
DEVELOPER: NEW BELVEDERE, Inc.
610 WEST RIO RD
CHARLOTTESVILLE, VA 22901
PLAN PREPARER: ROUDABUSH, GALE, & ASSOCIATES
914 MONTICELLO ROAD
CHARLOTTESVILLE, VA. 22902
(434)-977-0205
TAX MAP PARCEL No: 06200-00-00-01600
PARCEL AREA: 15.00 ACRES
ZONING: R4 RESIDENTIAL (THIS PARCEL IS NOT PART OF THE BELVEDERE ZMA-2004-0007)
STEEP SLOPES — MANAGED
STEEP SLOPES — PRESERVED
CURRENT USE: VACANT
PROPOSED USE: RESIDENTIAL DEVELOPMENT
MAGISTERIAL DISTRICT.- RIO MAGISTERIAL DISTRICT
WA TERSHED: UPPER RI VANNA RIVER
POLLUTION PREVENTION PLAN
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BOUNDARY SOURCE: PLAT "DIVISION OF DUNLORA" PREPARED BY WM. MORRIS FOSTER, LAND SURVEYOR, DATED NOVEMBER 1,
1985, REVISED DECEMBER 20, 7985, RECORDED AT DB 875 PG 331.
TOPOGRAPHY: AERIAL TOPOGRAPHY FLOWN IN 2016 BY BELL LAND SURVEYS LLC. TOPOGRAPHY STILL UNCHANGED BASED
ON A SITE VISIT AND DESIGN PROFESSIONAL'S OPINION, THE SURVEY IS STILL ACCURATE TO THE EFFECT
THAT THERE ARE NO EVIDENT VARIATIONS.
BENCHMARK: FIRE HYDRANT 455.10, RIGHT FRONT BONNET BOLT AT CORNER OF FOWLER STREET AND FARROW DRIVE
DATUNM: HORZ: NAVD 88; VERT: NAD83
FLOODPLAIN: THIS PROJECT IS LOCATED WITHIN ZONE X" AS SHOWN ON FLOOD INSURANCE RATE MAP. COMMUNITY
PANEL NUMBER 510003C 0279 D. EFFECTIVE DATE: FEBRUARY 4. 2005.
NO EVIDENCE OF A BURIAL SITE WAS FOUND ON SUBJECT PARCEL.
NO STREAM BUFFER(S) ARE PRESENT ON THE SUBJECT PARCEL.
THE SUBJECT PROPERTY IS NOT LOCATED WITHIN AN AGRICULTURAL —FORESTAL DISTRICT.
THIS SITE IS NOT LOCATED WITHIN THE WATERSHED OF A PUBLIC WATER SUPPLY RESERVOIR.
EROSION & SEDIMENT CONTROL LEGEND
S ADE
J SAFETY FENCE
E 3.02 CONSTRUCTIQV ENTRANCE
CONSTRUCTION ROAD
C R S 3.03 C R STABILIZATION
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SB 3.14 SB SEDIMENT BASIN
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SURFACE ROUGHENING
TEMPORARY SEEDING
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TP 3.38 r��Tr TREE PROTECTION
D C 339 C DUST CONTROL
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SCALE: 111=1000 FEET
SHEET INDEX
SHEET
1 -----
COVER SHEET
SHEET
2 -----
EROSION CONTROL PLAN PHASE 1 - PHASE 5A & TEMPORARY FIRE ROAD
SHEET
3 -----
EROSION CONTROL PLAN PHASE 1 - PHASE 56
SHEET
4 -----
EROSION CONTROL PLAN PHASE 1 - TEMPORARY FIRE ROAD
SHEET
5 ------
EROSION CONTROL PLAN PHASE 2 - PHASE 5A & TEMPORARY FIRE ROAD
SHEET
6 ------
EROSION CONTROL PLAN PHASE 2 - PHASE 513
SHEET
7--------
EROSION CONTROL PLAN PHASE 2 - TEMPORARY FIRE ROAD
SHEET
8 -----
EROSION CONTROL PLAN PHASE 3 - PHASE 5A & TEMPORARY FIRE ROAD
SHEET 9 ----- EROSION CONTROL PLAN PHASE 3 - PHASE 513
SHEET 10--------- EROSION CONTROL PLAN PHASE 3 - TEMPORARY FIRE ROAD
SHEET 11-------- POLLUTION PREVENTION NOTES & DETAILS
LEGEND
EXISTING INTERMEDIATE CONTOUR
EXISTING INDEX CONTOUR
30� —
PROPOSED CONTOUR
20
EXISTING EDGE OF PAVEMENT
EX. EP
PROPOSED EDGE OF PAVEMENT
EP
Ex. C&G
EXISTING CURB AND GUTTER
PROPOSED CURB AND GUTTER
CG-6
TRANSITION FROM CG-6 ROLL-TOP
CG-6 ROLL-TOP
EX. 15" RCP
EXISTING STORM SEWER
15" RCP
PROPOSED STORM SEWER
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EXISTING SANITARY SEWER
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EASEMENT LINE
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EXISTING SPOT ELEVATION
PROPOSED SPOT ELEVATION
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EXISTING TREE DRIP LINE
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EXISTING WATERLINE
PROPOSED WATERLINE
EXISTING FIRE HYDRANT
PROPOSED FIRE HYDRANT
EXISTING WATER VALVE
PROPOSED WATER VALVE
PROPOSED WATER METER
EXISTING REDUCER
PROPOSED REDUCER
HANDICAP RAMP (CG-12)
DENOTES LOCATION OF STD. VDOT
CG-12 AND/OR JURISDICTIONAL
STANDARD RAMP CONSTRUCTION
PARKING INDICATOR
INDICATES THE NUMBER OF TYPICAL PARKING SPACES
BENCHMARK
CRITICAL SLOPE
SLOPES TO BE SEEDED, MULCHED 8 TACKED
VEHICLES PER DAY COUNT
PROPOSED STREET NAME SIGN
EXISTING SIGN
PROPOSED SIGN
SANITARY MANHOLE IDENTIFIER
STORM DRAIN STRUCTURE IDENTIFIER
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EROSION CONTROL PLAN LEGEND
TEMPORARY SEDIMENT TRAP PARAMETERS ST#1
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Total Storage Req= 76.38 cy
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Total Storage Provided ® 444 = 149.40 cy
Sediment Trap Design Volumes for Wet Storage
Available Basin Volume Prov'd. = 48.7 cy ® 440
Bottom of wet storage: 436
Top of wet storage: 440
Side slope: 1:1
DRAIN
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3.07
3.09
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TEMPORARY
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IP
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for Dry Storage
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3.13
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SEDIMENT TRAP
ST
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2 ft
3.18
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3.19
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Berm Width = 2.5 feet
Bottom of Stone Weir (Bottom
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feet H = 3 ft
Ho = 2 ft
1 1 1 •1 •1
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STEEP SLOPES (MANAGED)
STEEP SLOPES (PRESERVED)
BOUNDARY LINE INFORMATION
LINE
BEARING
DISTANCE
L 7
N 81 °23'05" E
26.04'
L2
S 29'78'35" E
27.36'
L3
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27.84'
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3.39 DUST CONTROL DC - Cam-� \ ` K y -
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8438
FILE:
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SHEET:
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FOR DETAILS REGARDING INDIVIDUAL
CONTROL MEASURES.
BOUNDARY LINE INFORMATION
LINE
BEARING
DISTANCE
L 1
N 81'23'05" E
26.04'
L2
S 29'18'35" E
27.36'
L3
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27.84'
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STEEP SLOPES (PRESERVED)
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Total Drainage Area= 1.61 acres
Total Storage Req= 134 * 1.61
= 215.74 cy
Minimum wet/dry Volume Req'd. = 67 cy * 1.61 acres = 107.87 cy
Total Storage Provided ® 432
= 434.30 cy
Sediment Trap Design Volumes
for Wet Storage
Available WET Volume Prov'd. =
124.48 cy @ 430
Bottom of trap: 428
Top of wet storage: 430
Side slope: 2:1
Depth:2 ft
Sediment Trap Design Volumes
for Dry Storage
Available DRY Volume Prov'd. =
171.30 cy ® 432
Bottom of dry storage/bottom
of stone weir: 430
Top of dry storage:432
Side Slopes:2:1
Depth: 2 ft
Sed Trap Design Elevations:
Top of Berm/Weir = 433
Berm Width = 4.5 feet
Bottom of Stone Weir (Bottom
of Dry storage) = 430
Weir Length = 6 x area = 10
feet
Weir Height = 3 foot
DRAINAGE AREA
DC TO ST-2: 1.60 AC
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3.02
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8438
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EROSION CONTROL PLAN LEGEND
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JOB:.
8438
FILE:
WPO-2020-00034
SHEET:
8 OF11
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EROSION CONTROL PLAN LEGEND
3.02
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CRS
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SF
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IP
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*REFERENCE VIRGINIA EROSION AND
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FOR DETAILS REGARDING INDIVIDUAL
CONTROL MEASURES.
BOUNDARY LINE INFORMATION
LINE
BEARING
DISTANCE
L 1
N 81'23'05" E
26.04'
L2
S 29` 18'35 " E
27.36'
L3
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ESSIONAL Eta
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8438
FILE:
WP0.2020.00034
SHEET:
9 OF11
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\ / \ B/M 1 TO BE INSTALLED ON CONSTRUCTED SLOPE
/ ALONG THIS FIRE ROAD ROUTE, GREATER THAN 10
f *E ti \ VERTICAL FEET. MATTING TO BE INSTALLED WITHIN
Ng1�59, o / \ / 48 HOURS OF ACHIEVING FINAL GRADE. f
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ALBEMARLE COUNTY GIS MUD -TRAPS & CROSS SLOPE SILT FENCE MAY BE \
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\ BLANKET AND MATTING IS IN PLACE, AND COUNTY Rse
X INSPECTORS AUTHORIZE. -
R o ` ALL SLOPES GREATER THAN 3:1 MUST BE
STABILIZED WITH LOW MAINTENANCE
Now
VEGETATIVE GROUND COVER OTHER THAN
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SCALE: 1 "=30'
STEEP SLOPES (MANAGED)
STEEP SLOPES (PRESERVED)
BOUNDARY LINE INFORMATION
LINE
BEARING
DISTANCE
L7
N 87.23'05" E
26.04'
L2
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27.36'
L3
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DATE:
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SCALE:
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JOB:
8438
FILE:
WPO-2020-00034
SHEET: 10 OF 11
PURPOSE
4VAC50-60-54 of the Virginia Stormwater Management Program (VSMP) Permit
Regulations requires that Stormwater Pollution Prevention Plan (SWPPP) be developed
for all regulated land disturbing activities. The SWPPP must include, but not be limited
to an approved erosion and sediment control Ian an approved stormwater
pP p pp
management Ian and this Pollution Prevention Plan PPP for regulated land
9 P (PPP) 9
disturbing activities, and a description of any additional control measures necessary to
address a TMDL as applicable.
The plan for implementing pollution prevention measures during construction activities
developed on this sheet must be implemented and updated as necessary. Any PPP
requirements not included on this sheet must be incorporated into the SWPPP required
by 4VAC50-60-54 that must be developed before land disturbance commences. This
PPP identifies potential sources of pollutants that may reasonable be expected to affect
the quality stormwater discharges from the construction site (both on- and off -site
activities) and describes control measures that will be used to minimize pollutants in
stormwater discharges from the construction site.
OTHER REFERENCED PLANS
SWPPP requirements may be fulfilled by incorporating, by reference, other plans. All
plans incorporated by reference become enforceable under the VSMP Permit
Regulations and General Permit VAR10 for Discharges of Stormwater from
Construction Activities. If a plan incorporated by reference does not contain all of the
required elements of the PPP, the operator must develop the missing elements and
include them in the SWPPP.
Independent Plans
Incorporated by Reference
Date
Approved
StDmrwater Management Plans (Regional or Master)
Spill Prevention, Control, and Countermeasure Rana
011Site Stockpile
WA
Off -Site Borrow Area
N/A
POTENTIAL POLLUTANT SOURCES
The following sources of potential pollutants must be addressed in the Pollution
Prevention Plan. Various controls and/or measures designed to prevent and/or
minimize pollutants in stormwater discharges from the project site must be applied to
the sources found on the site. Additional information concerning the following controls
and/or measures may be found in the SWPPP. Deviations from the location criteria
may be approved b the Albemarle Count Inspector.
Y PP Y Y P
LEAKS, SPILLS, AND OTHER RELEASES
The operator(s) shall ensure procedures are In place to prevent and respond to all
leaks, spills and other releases of pollutants.
✓ The operator(s) shall ensure all leaks, spills and other releases of pollutant are
contained and cleaned immediately upon discovery. Any contaminated materials
are to be disposed in accordance with federal, state, and/or local requirements,
v The operator(s) shall ensure spill containment kits containing appropriate materials
(e.g., absorbent material and pads, brooms, gloves, sand, etc.) are available at
appropriate locations, including, but not limited to: designated areas for vehicle and
equipment maintenance; vehicle and equipment fueling; storage and disposal of
construction materials, products, and waste; and storage and disposal of hazardous
and toxic materials; and sanitary waste facilities.
✓ The locations of the spill containment kits are identified as described below,
Date
Shown on
Plan Sheet
s
Location
Approved
Plan
REVISIONS TO LOCATIONS
Date
Shown on
Plan Sheet
#s
Location
Operator(s)
Initials
✓ The operator(s) shall notify the Department of Environmental Quality of leaks, spills,
and other releases that discharge to or have the potential to discharge to surface
waters Immediately upon discovery of the discharge but in no case later than 24
after the discovery.
✓ The operator(s) shall notify the Department of Environmental Quality (DEQ) of leaks,
spills, and other releases that discharge to or have the potential to discharge to
surface waters immediately upon discovery of the discharge but in no case later than
24 after the discovery. Written notice of the discharge must be sent to DEQ and
Henrieo County Department of Public Works within five (5) days of the discovery.
Virginia Department of Environmental
Quality
NEED ADDRESS
(804) 786-3998 (phone)
(804) 786-1798 (fax)
(800) 468-8892 (outside normal working
hours)
Albemarle County
Community Development
Engineering Department
401 McIntire Road
Charlottesville, VA22901
(434)296-5832
EQUIPMENT / VEHICLE WASHING
✓ Washing must be conducted in a dedicated area that is located to maximize the
distance from storm drain inlets, ditches, waterbodies or wetlands but no less than
50 feet from those features.
✓ All wash water used in vehicle wheel washing must be directed to a sediment
basin/tra .
P
✓ All vehicle washing activities other than wheel washing must have secondary
containment.
✓ Each facility must have appropriate signage to inform users where the dedicated
area(s) are located.
Location of Shown on Water Source
Activity Dedicated Area(s) Sheetan s Location
-)
Wheel Wash
NiMyEn
REVISIONS TO LOCATIONS
Shown on
Location of Water Source Operator's
Activity
Dedicated Areaplan s) Sheet Plan
l Location Initials
VEHICLE FUELING AND MAINTENANCE
✓ Conduct regular maintenance in a dedicated area that is located to maximize the
distance from storm drain inlets, ditches, waterbodies or wetlands but no less than STAPLES
(2 PER BALE) 10 MIL. PLASTIC LINING STRAW BALE (TYP.)
50 feet from those features.
✓ If fuelingis conducted at a dedicated area, the location must be located to woo' OR METAL STAKES NATI MA ERIAL (oPT>
PER BALE
( ) BINDING WIRE
R
ma
ximize the distance from storm drain inlets ditches waterbodies or wetlands but
no less than 50 feet from those features. _
✓ The dedicated areas must be designed to eliminate the discharge of spilled and ---'
9 9 P —_ �_ secTioN 'A=A'
NOT TO SCALE
leaked fuels and chemicals from vehicle fuelingand maintenance activities b
Y
providing secondary containment (spill berms, decks, spill containment pallets, 10 MIN.
providing cover appropriate, and Navin s III kits readily available).
STAKE TYP.
P 9g P Y )
✓ Each facility must have appropriate signage to inform users where the dedicated _
steals) are located, ^'
VARIES
Date
Shown on
Plan
Sheet # s
Location of Dedicated Area(s)
Approved
Plan
REVISIONS TO LOCATIONS
Date
Shown on
Plan
Sheet # s
Location of Dedicated Ares(s)
Operators
Initials
✓ If mobile fueling will be used, the fueling must be done in an area that located to
maximize the distance from storm drain inlets, ditches, waterbodies or wetlands but
no less than 50 feet from those features.
✓ Spill kits must be readily available at all mobile fueling locations.
✓ On -site storage tanks must have a means of secondary containment (spill berms,
decks, spill containment pallets, etc.) and must be covered where appropriate.
✓ All vehicles on site must be monitored for leaks and receive regular preventive
maintenance to reduce the chance of leakage.
DISCHARGE FROM STORAGE, HANDLING, AND DISPOSAL
OF CONSTRUCTION PRODUCTS, MATERIALS, AND WASTE
✓ Storage of construction products, materials, and waste is to be conducted in
dedicated areas.
✓ The dedicated area must be located to maximize the distance from storm drain
inlets, ditches, waterbodies or wetlands but no less than 50 feet from those features.
Separations of less than 50 feet may be approved b the Environmental Inspector
et y pp y n specto
✓ The dedicated areas must be designed to minimize the discharge of pollutants from
storage, handling, and disposal of constructionproducts, materials and wastes
9 � 9• P
including (i) building products such as asphalt sealants, copper flashing, roofing
materials, adhesives, concrete admixtures; (ii) pesticides, herbicides, insecticides,
fertilizers, and landscape materials; and (III) construction and domestic wastes such
as packaging materials, scrap construction materials, masonry products, timber,
pipe and electrical cuttings, plastics, Styrofoam, concrete and other trash or building
products..
✓ Each facility must have appropriate signage to inform users where the dedicated
area(s) are located.
Date
Shown on
Plan Sheet
#s
Location(s) of Dedicated Area(s) for storage of construction
products and materials
Approved
Plan
REVISIONS TO LOCATIONS
Date
Shown on
Plan Sheet
#s
Location(s) of Dedicated Areas) for storage
of construction products and materials
Operator(s)
Initials
Date
Shown on
Plan Sheet
Location(s) of Dedicated Area(s) for waste from
#s
construction products and materials
Approved
Plan
REVISIONS TO LOCATIONS
Date
Shown on
Plan Sheet
Location(s) of Dedicated Areas) for waste
Operator(s)
#5
from construction products and materials
Initials
✓ Follow all federal, state, and local requirements that apply to the use, handling and
disposal of pesticides, herbicides, and fertilizers.
✓ Keep chemicals on -site in small quantities and in closed, well marked containers.
✓ Clean up solid waste, including building materials, garbage, and debris on a daily
basis and deposit into covered dumpsters that are periodically emptied.
✓ Schedule waste collection to prevent exceeding the capacity of onsite containers.
Additional containers may be necessary depending on the phase of construction
(e.g., demolition, etc.)
✓ Dispose of all solid waste at an authorized disposal site.
✓ Ensure that containers have lids or are otherwise protected from exposure to
precipitation.
DISCHARGES FROM OTHER POTENTIAL POLLUTANT
SOURCES
Discharges from other pollutant sources e. water line flushing, storm sewer
9 P ( 9 , 9�
flushing, above ground storage tanks, etc.) not mentioned elsewhere must be
addressed.
✓ Above ground oil storage tanks with a storage capacity exceeding 1,320 gallons and
have a reasonable expectation of a discharge into or upon Waters of the United
States are required to have a Spill Prevention Control and Countermeasure (SPCC)
Plan.
✓ The discharge of contaminated flush water and material removed during flushing
operations must be collected and disposed of in accordance with appropriate
federal, state, and local requirements.
ID MIL PLASTC LINING
10 MIL PLASTIC
LATH AND FLAGGING\
ON 3. SIDES
0
10' MIN
O
SECTION A -A'
NOT TO SCALE I rS
0 0 0
!i
i
i
AND FLAGGI] DISCHARGES OF SOAPS, DETERGENTS, SOLVENTS, AND
SIDES
WASH WATER FROM CONSTRUCTION ACTIVITIES SUCH AS
CLEANUP OF STUCCO, PAINT, FORM RELEASE OILS, AND
CURING COMPOUNDS
Washing activities associated with construction activities other than vehicle and
equipment washing, such as clean up of stucco, paint, form release oils, and curing
compounds are to be conducted In a dedicated area.
ANDBAG (TYPa The dedicated area must be located to maximize the distance from storm drain
inlets, ditches, waterbodies or wetlands but no less than 50 feet from those features.
Separations of less than 50 feet may be approved b the Environmental Inspector.
P Y PP Y p
-TOP OF BERM ✓ The dedicated areas must be designed to prevent the discharge of soaps,
detergents, solvents, and wash water
PLAN. -�Inary LSNLt (Irv.) 10 MIL PLASTIC LININGS BOTTOM OF BERM
NOT TO SCALE PLAN
NOT TO SCALE
CONCRETE WASHOUT AREA CONCRETE WASHOUT AREA
ABOVE —GRADE CONTAINMENT AREA W/ STRAW BALES BELOW —GRADE CONTAINMENT AREA
e
00,// PRESSURIZED WATER
Oe- / SOURCE (CONTINGENT UPON PROVIDE DRAINAGE AWAY
WATER MAIN INSTALLATION) y FROM THE WASH RACK
TO A
SEDIMENT -TRAPPING
DEVICE
/ \_1 V KEEP A BROOM AND SHOVEL
\ CLOSE TO THE RACK TO
'.\ CLEAN THE STREET.
A
WASH RACK
IT IS ADVISABLE TO PROVIDE A
SEPARATE ENTRANCE TO LIMIT
A
TRAFFIC DUCE ACROSS THE RACK AND
RE WEAR AND MAINTENANCE.
�2 "THE FOLLOWING IS OF V
K. OTHER
ACCEPTABLE WASH RACK. OTHER. APPROVED
METHODS MAY BE UTILIZED.
ONE SECTION OF REINFORCED CONCRETE
CA
CATTLEGUARD
3" WASHED STONE UNDER & BETWEEN
SLATS TO DRAIN WATER AND SEDIM T
THE LOCATION MUST SLOPE AWAY
AWAY FROM THE RACK
FROM THE STREET OR STEPS MUST
BE TAKEN (GRADING, DIVERSIONS,
ETC.) TO PREVENT RUNOFF FLOWING
p,
INTO THE STREET.FOUNDATION
COMPACTEDC CRUSH
A
RUN STONE
CURT TILE SECTION 'A -A'
FABRIC
WASH RACK
SEDIMENT CONTAINMENT AREA
SOLID WASTE COLLECTION CONTAINMENT AREA
SILT FENCE NOT TO SCALE
LOCATE ON
DOWNHILL SIDE
OF soup wnsTE
COLLECTION
AREA
\\\\\
1
DUMPSTER OR SOLID
WASTE CONTAINER
VEHICLE TRACKING
CONTROL
(GRAVEL, PAVEMENT OR
OTHER STABLE SURFACE)
FUELING AREA
BELOW —GRADE CONTAINMENT AREA
10 MIL. PLASTIC
3'
REA
SILT FENCE
LOCATE ON
DOWNHILL SIDE
OF PORTABLE
TOILET
10'
STD.
PORTABLE
TOILET
12' HIGH DIVERSION BERM
ON 3 DOWNHILL SIDES
VARIES
SANDBAG (TYP.)
VARIES
=PAVED FUELING AREA •' '
10 MIL. PLASTIC LINING
BOTTOM OF BERM
OP OF BERM
DISCHARGES FROM CONCRETE RELATED
WASH ACTIVITIES
✓ Concrete trucks are not allowed to wash out or discharge surplus concrete or drum
wash water on site except in a dedicated area(s) that is located to prevent
discharge to storm drain inlets ditches waterbodies or wetlands but no less than 50
,
feet from those features.
Each facilitymust have a stabilized access to prevent mud tracking into the street.
P 9
✓ Each facility must have appropriate signage to inform users where the dedicated
area(s) are located.
Shown on
Date
Plan
Location of Dedicated Areas)
Sheet #(s)
Approved
Plan
REVISIONS TO LOCATIONS
Shown on
Operator's
Date
Plan
Location of DedicatedArea(s)
Initials
Sheet # s
✓ Facilities must be cleaned, or new facilities constructed, once the washout area is
two-thirds (213) full.
Date
Shown on
Plan
Sheet s
Location(s) of Dedicated Area(s)
Approved
Plan
REVISIONS TO LOCATIONS
Date
Shown on
Plan
Sheet s
Operator(s)
Location(s) of Dedicated Area(s) Initials
✓ The dedicated area must be covered (e.g., plastic sheeting, temporary roof, etc.) to
prevent contact with stormwater.
✓ The contaminated wastewater from the dedicated area must be collected for
disposal b a waste hauler or discharged to the sanitary sewer.
P Y g ry
✓ In situations where these pollutants are or could be generated at locations other than
at the designated area (e.g., concrete pours, building washing, etc.), cover (e.g.,
plastic sheeting, temporary roof, etc.) must be provided to prevent contact with
stormwater and the contaminated wastewater from the activity must be collected for
disposal by a waste hauler or discharged to the sanitary sewer.
DISCHARGES OF HAZARDOUS, TOXIC,
AND SANITARY WASTE
✓ Storage and disposal of hazardous, toxic and sanitary wastes are to be conducted in
dedicated areas.
✓ The dedicated areas must be located to maximize the distance from storm drain
inlets ditches waterbodies or wetlands but no less than 50 feet from those features.
Separations of less than 50 feet may be approved by the Environmental Inspector
✓ The dedicated areas must be designed to prevent the discharge of hazardous, toxic
and sanitary waste by avoiding contact with precipitation
✓ Each facility must have appropriate signage to inform users where the dedicated
steals) are located.
Shawn on
Location(s) of Dedicated Area(s) for storage and disposal of
Date
Plan
hazardous and toxic wastes
Sheet s
Approved
Plan
REVISIONS TO LOCATIONS
Shown on
Location(s) of Dedicated Area(s) for storage
Operator(s)
Date
Plan
and disposal of hazardous and toxic wastes
Initials
Sheet s
Shown on
Date
Plan
Location(s) of Dedicated Areas) for portable toilets
Sheet #(s)
1
Approved
I
Plan
REVISIONS TO LOCATIONS
Date
Shown on
Plan
Sheet s
Location(s) of Dedicated Areas) for portable
Collets
Operator(s)
Initials
✓ Consult with local waste management authorities or private firms about the
requirements for disposing of hazardous materials and/or soils that may be
contaminated with hazardous materials.
✓ Never remove the original product label from the container Follow the
manufacturer's recommended method of disposal.
Schedule periodic pumping of portable toilets and dispose of waste
✓ Dispose of all solid waste at an authorized disposal site.
SWPPP MODIFICATIONS AND REVISIONS
The operator(s) shall ensure the SWPPP is modified and/or revised to reflect
✓ Changes in qualified personnel; delegated authorities or other personnel required as
a condition of the General Construction Permit;
✓ Changes in site conditions;
Changes in the design, construction, operation, or maintenance of the construction
site that affect the potential for discharges of pollutants that are not addressed in the
normal implementation of the plan; and
✓ Ineffective control measures identified during inspections or investigations
conducted by the operator's qualified personnel or local, state or federal officials.
Modifications/revisions to the SWPPP shall include additional or modified control
measures to address the identified deficiencies.
If the necessary modifications/revisions require approval by the Administrator or DEQ,
the modifications/revisions must be implemented no later than seven (7) calendar days
following approval.
If the necessary modifications/revisions do not require approval by the Administrator,
the modifications/revisions must be implemented prior to the next anticipated storm
event or as soon as practicable.
SWPPP UPDATES
The operator(s) shall update the SWPPP to include:
✓ A record of dates when 1) major grading activities occur, 2) construction activities
temporarily or permanently cease on a portion of the site, and 3) stabilization
measures are initiated;
Documentation of modifications and revisions to the SWPPP;
✓ Areas that have reached final stabilization where no further SWPPP or inspection
requirements apply;
✓ All properties that are no longer under the legal control of the operator and the dates
on which the operator no longer had legal control over each roe and
P 9 9 property; rtY,
✓ The date, volume, and corrective/preventative actions implemented for any
prohibited discharge.
The operator(s) shall update the SWPPP no later than seven (7) days following any of
the situations identified above.
OPERATOR INSPECTIONS
The operator(s) identified below shall provide for inspections of the permitted land -
disturbing activities by the qualified personnel identified below. The inspections will be
conducted (select one the following options):
❑ at least once every four (4) business days; or
❑ at least once every five (5) business days and no later than 48 hours following
any measurable storm event.
Where areas are in a stabilized condition or runoff is unlikely due to winter conditions,
the inspection frequency may be reduced to once every 30 days while these conditions
exist. Otherwise, the operator(s) shall resume the regular inspection frequency
identified above.
The operator(s) shall provide for inspections of the permitted land -disturbing activity to
ensure implementation and continued maintenance of all requirements of the
Stormwater Pollution Prevention Plan (Erosion and Sediment Control Plan, Stormwater
Management Plan, Pollution Prevention Plan, TMDL requirements, etc.).
Records of the required inspections must be maintained and included in the SWPPP
binder. The qualified personnel are encouraged to use the Operator Inspection form
provided in the SWPPP binder to document the required inspections. If inspections are
conducted once every five (5) business days and no later than 48 hours following any
measureable storm event, the location of the rain gauge used to determine the amount
of rain must be included in the SWPPP and documented in the inspection report.
ACKNOWLEDGEMENTS
I certify under penalty of law that the qualified personnel identified below:
a. has been designated b the Operator to conduct inspections of the
9 Y P P
permitted site;
b. is knowledgeable in the principles and practices of erosion and
sediment control and stormwater management;
C. possesses the skills to assess conditions at the permitted site for the
Operator(s) that could impact stormwater quality and quantity;
d. will assess the effectiveness of any erosion and sediment control
measures or stormwater management facilities selected to control the
stormwater discharges from the permitted site; and
e. will conduct inspections in accordance with the frequency noted above
in the OPERATOR INSPECTIONS section of this sheet.
Name (print)
Phone
Additional information is located in Tab 6 of the SWPPP Binder..
As the Operator(s) or Delegated Authority, I/We understand that prior to initiating land
disturbance, the potential pollutant sources, appropriate control measures, and all
responsible parties (operator, qualified inspection personnel, contractors, etc.) required
as a condition of the General Construction Permit (GCP) and the Stormwater Pollution
Prevention Plan (SWPPP) must be identified. I also understand this information must
be updated as necessary throughout all phases of construction until the GCP is
terminated.
Furthermore,
I/we certify under penalty of law that I/we have read and understand all requirements of
the SWPPP (erosion and sediment control plan, stormwater management plan, pollution
prevention plan, TMDL provisions, administrative requirements, etc.) and GCP and that
the information herein is, to the best of my knowledge and belief, true, accurate, and
complete. I am aware that there are significant penalties for submitting false
information, including the possibility of fine or imprisonment for knowing violations.
I/we understand that I/we are ultimately responsible for compliance with all conditions
and requirements of the SWPPP and GCP and for ensuring all contractors and
subcontractors on the permitted site are aware of the conditions and requirements of
the SWPPP and GCP.
I/we shall comply with all conditions and requirements of the SWPPP and shall at all
times properly operate and maintain all measures and control (and related
appurtenances) which are installed or used to achieve compliance with the conditions of
the GCP. Proper opration and maintenance also includes adequate funding and
adequate staffing.
I/we shall take all reasonable stepsto minimize or prevent an discharge in violation of
P Y 9
the SWPPP and/or GCP.
I/we understand that if it determined by the Department of Environmental Quality (DEQ)
in consultation with the State Water Control Board at any time that stormwater
discharges are causing, have reasonable potential to cause, or contribute to and
excursion above any applicable water quality standard, the DEQ may, in consultation
with the Administrator, take appropriate enforcement action and require:
a. Modification of control measures to adequately address water quality
concerns;
b. Submission of valid and verifiable data and information that are
representative of ambient conditions and indicate that the receiving water is
attaining quality water ualit standards or
C. Cessation of discharges of pollutants from construction activity and submit an
individual permit application according to 4VAC25-870-410.
OPERATOR(S) / DELEGATED AUTHORITY
Name(print)
Signature
Date
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DESIGNED BY:
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DRAWN BY:
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CHECKED BY:
JLT
DATE:
06-11-2020
SCALE:
NA
JOB:
8438
FILE:
WPO-2020-00034
SHEET:
1 1 OF11
APPX B- Copy of Construction General Permit
26
COMMONWEALTH of VIRGINIA
DEPARTMENT OF ENVIRONMENTAL QUALITY
General Permit No.: VAR10
Effective Date: July 1, 2019
Expiration Date: June 30, 2024
GENERAL VPDES PERMIT FOR DISCHARGES OF
STORMWATER FROM CONSTRUCTION ACTIVITIES
AUTHORIZATION TO DISCHARGE UNDER THE VIRGINIA STORMWATER MANAGEMENT
PROGRAM AND THE VIRGINIA STORMWATER MANAGEMENT ACT
In compliance with the provisions of the Clean Water Act, as amended, and pursuant to the
Virginia Stormwater Management Act and regulations adopted pursuant thereto, operators of
construction activities are authorized to discharge to surface waters within the boundaries of the
Commonwealth of Virginia, except those specifically named in State Water Control Board
regulations that prohibit such discharges.
The authorized discharge shall be in accordance with the registration statement filed with the
Department of Environmental Quality, this cover page, Part I - Discharge Authorization and
Special Conditions, Part II - Stormwater Pollution Prevention Plan, and Part III - Conditions
Applicable to All VPDES Permits as set forth in this general permit.
Construction General Permit
Effective July 1, 2019
Page 2 of 26
FOMO 1
DISCHARGE AUTHORIZATION AND SPECIAL CONDITIONS
A. Coverage under this general permit.
During the period beginning with the date of coverage under this general permit and lasting
until the general permit's expiration date, the operator is authorized to discharge stormwater
from construction activities.
This general permit also authorizes stormwater discharges from support activities (e.g.,
concrete or asphalt batch plants, equipment staging yards, material storage areas, excavated
material disposal areas, borrow areas) located on -site or off -site provided that:
a. The support activity is directly related to the construction activity that is required to have
general permit coverage for discharges of stormwater from construction activities;
b. The support activity is not a commercial operation, nor does it serve multiple unrelated
construction activities by different operators;
c. The support activity does not operate beyond the completion of the last construction
activity it supports;
d. The support activity is identified in the registration statement at the time of general permit
coverage;
e. Appropriate control measures are identified in a stormwater pollution prevention plan and
implemented to address the discharges from the support activity areas; and
f. All applicable state, federal, and local approvals are obtained for the support activity.
B. Limitations on coverage.
1. Post -construction discharges. This general permit does not authorize stormwater discharges
that originate from the site after construction activities have been completed and the site,
including any support activity sites covered under the general permit registration, has
undergone final stabilization. Post -construction industrial stormwater discharges may need to
be covered by a separate VPDES permit.
Discharges mixed with nonstormwater. This general permit does not authorize discharges that
are mixed with sources of nonstormwater, other than those discharges that are identified in
Part I E (Authorized nonstormwater discharges) and are in compliance with this general
permit.
Discharges covered by another state permit. This general permit does not authorize
discharges of stormwater from construction activities that have been covered under an
individual permit or required to obtain coverage under an alternative general permit.
Page 3 of 26
4. Impaired waters and total maximum daily load (TMDL) limitation.
Nutrient and sediment impaired waters. Discharges of stormwater from construction
activities to surface waters identified as impaired in the 2016 § 305(b)/303(d) Water
Quality Assessment Integrated Report or for which a TMDL wasteload allocation has
been established and approved prior to the term of this general permit for (i) sediment
or a sediment -related parameter (i.e., total suspended solids or turbidity) or (ii)
nutrients (i.e., nitrogen or phosphorus) are not eligible for coverage under this general
permit unless the operator develops, implements, and maintains a stormwater
pollution prevention plan (SWPPP) in accordance with Part II B 5 of this permit that
minimizes the pollutants of concern and, when applicable, is consistent with the
assumptions and requirements of the approved TMDL wasteload allocations and
implements an inspection frequency consistent with Part II G 2 a.
Polychlorinated biphenyl (PCB) impaired waters. Discharges of stormwater from
construction activities that include the demolition of any structure with at least 10,000
square feet of floor space built or renovated before January 1, 1980, to surface waters
identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment
Integrated Report or for which a TMDL wasteload allocation has been established and
approved prior to the term of this general permit for PCB are not eligible for coverage
under this general permit unless the operator develops, implements, and maintains a
SWPPP in accordance with Part II B 6 of this permit that minimizes the pollutants of
concern and, when applicable, is consistent with the assumptions and requirements
of the approved TMDL wasteload allocations, and implements an inspection frequency
consistent with Part II G 2 a.
Exceptional waters limitation. Discharges of stormwater from construction activities not
previously covered under the general permit effective on July 1, 2014, to exceptional waters
identified in 9VAC25-260-30 A 3 c are not eligible for coverage under this general permit
unless the operator develops, implements, and maintains a SWPPP in accordance with Part
II B 7 of this permit and implements an inspection frequency consistent with Part 11 G 2 a.
6. There shall be no discharge of floating solids or visible foam in other than trace amounts
C. Commingled discharges. Discharges authorized by this general permit may be commingled
with other sources of stormwater that are not required to be covered under a state permit, so long
as the commingled discharge is in compliance with this general permit. Discharges authorized by
a separate state or VPDES permit may be commingled with discharges authorized by this general
permit so long as all such discharges comply with all applicable state and VPDES permit
requirements.
D. Prohibition of nonstormwater discharges. Except as provided in Parts I A 2, 1 C, and I E, all
discharges covered by this general permit shall be composed entirely of stormwater associated
with construction activities. All other discharges including the following are prohibited:
1. Wastewater from washout of concrete;
2. Wastewater from the washout and cleanout of stucco, paint, form release oils, curing
compounds, and other construction materials;
Page 4 of 26
3. Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance;
4. Oils, toxic substances, or hazardous substances from spills or other releases; and
5. Soaps, solvents, or detergents used in equipment and vehicle washing.
E. Authorized nonstormwater discharges. The following nonstormwater discharges from
construction activities are authorized by this general permit when discharged in compliance with
this general permit:
1. Discharges from firefighting activities;
2. Fire hydrant flushings;
3. Waters used to wash vehicles or equipment where soaps, solvents, or detergents have not
been used and the wash water has been filtered, settled, or similarly treated prior to discharge;
4. Water used to control dust that has been filtered, settled, or similarly treated prior to discharge;
5. Potable water sources, including uncontaminated waterline flushings, managed in a manner
to avoid an instream impact;
6. Routine external building wash down where soaps, solvents or detergents have not been used
and the wash water has been filtered, settled, or similarly treated prior to discharge;
7. Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred
(or where all spilled or leaked material has been removed prior to washing); where soaps,
solvents, or detergents have not been used; and where the wash water has been filtered,
settled, or similarly treated prior to discharge;
8. Uncontaminated air conditioning or compressor condensate;
9. Uncontaminated ground water or spring water;
10. Foundation or footing drains where flows are not contaminated with process materials such
as solvents;
11. Uncontaminated excavation dewatering, including dewatering of trenches and excavations
that have been filtered, settled, or similarly treated prior to discharge; and
12. Landscape irrigation.
F. Termination of general permit coverage.
1. The operator of the construction activity shall submit a notice of termination in accordance
with 9VAC25-880-60, unless a registration statement was not required to be submitted in
accordance with 9VAC25-880-50 A 1 c or A 2 b for single-family detached residential
structures, to the VSMP authority after one or more of the following conditions have been met:
Page 5 of 26
a. Necessary permanent control measures included in the SWPPP for the site are in place
and functioning effectively and final stabilization has been achieved on all portions of the
site for which the operator has operational control. When applicable, long term
responsibility and maintenance requirements for permanent control measures shall be
recorded in the local land records prior to the submission of a complete and accurate
notice of termination and the construction record drawing prepared;
b. Another operator has assumed control over all areas of the site that have not been finally
stabilized and obtained coverage for the ongoing discharge;
c. Coverage under an alternative VPDES or state permit has been obtained; or
d. For individual lots in residential construction only, final stabilization as defined in 9VAC25-
880-1 has been completed, including providing written notification to the homeowner and
incorporating a copy of the notification and signed certification statement into the SWPPP,
and the residence has been transferred to the homeowner.
The notice of termination shall be submitted no later than 30 days after one of the above
conditions in subdivision 1 of this subsection is met.
3. Termination of authorization to discharge for the conditions set forth in subdivision 1 a of this
subsection shall be effective upon notification from the department that the provisions of
subdivision 1 a of this subsection have been met or 60 days after submittal of a complete and
accurate notice of termination in accordance with 9VAC25-880-60 C, whichever occurs first.
4. Authorization to discharge terminates at midnight on the date that the notice of termination is
submitted for the conditions set forth in subdivisions 1 b through 1 d of this subsection unless
otherwise notified by the VSMP authority or department.
5. The notice of termination shall be signed in accordance with Part III K of this general permit.
G. Water quality protection.
1. The operator shall select, install, implement, and maintain control measures as identified in
the SWPPP at the construction site that minimize pollutants in the discharge as necessary to
ensure that the operator's discharge does not cause or contribute to an excursion above any
applicable water quality standard.
If it is determined by the department that the operator's discharges are causing, have
reasonable potential to cause, or are contributing to an excursion above any applicable water
quality standard, the department, in consultation with the VSMP authority, may take
appropriate enforcement action and require the operator to:
a. Modify or implement additional control measures in accordance with Part II C to
adequately address the identified water quality concerns;
b. Submit valid and verifiable data and information that are representative of ambient
conditions and indicate that the receiving water is attaining water quality standards; or
Page 6 of 26
c. Submit an individual permit application in accordance with 9VAC25-870-410 B 3.
All written responses required under this chapter shall include a signed certification
consistent with Part III K.
MMM
STORMWATER POLLUTION PREVENTION PLAN
A. Stormwater pollution prevent plan.
A stormwater pollution prevention plan (SWPPP) shall be developed prior to the submission
of a registration statement and implemented for the construction activity, including any support
activity, covered by this general permit. SWPPPs shall be prepared in accordance with good
engineering practices. Construction activities that are part of a larger common plan of
development or sale and disturb less than one acre may utilize a SWPPP template provided
by the department and need not provide a separate stormwater management plan if one has
been prepared and implemented for the larger common plan of development or sale.
The SWPPP requirements of this general permit may be fulfilled by incorporating by reference
other plans such as a spill prevention control and countermeasure (SPCC) plan developed for
the site under § 311 of the federal Clean Water Act or best management practices (BMP)
programs otherwise required for the facility provided that the incorporated plan meets or
exceeds the SWPPP requirements of Part II B. All plans incorporated by reference into the
SWPPP become enforceable under this general permit. If a plan incorporated by reference
does not contain all of the required elements of the SWPPP, the operator shall develop the
missing elements and include them in the SWPPP.
3. Any operator that was authorized to discharge under the general permit effective July 1, 2014,
and that intends to continue coverage under this general permit, shall update its stormwater
pollution prevention plan to comply with the requirements of this general permit no later than
60 days after the date of coverage under this general permit.
B. Contents. The SWPPP shall include the following items:
1. General information.
a. A signed copy of the registration statement, if required, for coverage under the general
VPDES permit for discharges of stormwater from construction activities;
b. Upon receipt, a copy of the notice of coverage under the general VPDES permit for
discharges of stormwater from construction activities (i.e., notice of coverage letter);
c. Upon receipt, a copy of the general VPDES permit for discharges of stormwater from
construction activities;
d. A narrative description of the nature of the construction activity, including the function of
the project (e.g., low density residential, shopping mall, highway, etc.);
e. A legible site plan identifying:
Page 7 of 26
(1) Directions of stormwater flow and approximate slopes anticipated after major grading
activities;
(2) Limits of land disturbance including steep slopes and natural buffers around surface
waters that will not be disturbed;
(3) Locations of major structural and nonstructural control measures, including sediment
basins and traps, perimeter dikes, sediment barriers, and other measures intended to
filter, settle, or similarly treat sediment, that will be installed between disturbed areas
and the undisturbed vegetated areas in order to increase sediment removal and
maximize stormwater infiltration;
(4) Locations of surface waters;
(5) Locations where concentrated stormwater is discharged;
(6) Locations of any support activities, including (i) areas where equipment and vehicle
washing, wheel wash water, and other wash water is to occur; (ii) storage areas for
chemicals such as acids, fuels, fertilizers, and other lawn care chemicals; (iii) concrete
wash out areas; (iv) vehicle fueling and maintenance areas; (v) sanitary waste
facilities, including those temporarily placed on the construction site; and (vi)
construction waste storage; and
(7) When applicable, the location of the on -site rain gauge or the methodology established
in consultation with the VSMP authority used to identify measurable storm events for
inspection as allowed by Part II G 2 a (1) (ii) or Part II G 2 b (2).
Erosion and sediment control plan.
a. An erosion and sediment control plan designed and approved in accordance with the
Virginia Erosion and Sediment Control Regulations (9VAC25-840), an "agreement in lieu
of a plan" as defined in 9VAC25-840-10 from the VESCP authority, or an erosion and
sediment control plan prepared in accordance with annual standards and specifications
approved by the department.
b. All erosion and sediment control plans shall include a statement describing the
maintenance responsibilities required for the erosion and sediment controls used.
c. An approved erosion and sediment control plan, "agreement in lieu of a plan," or erosion
and sediment control plan prepared in accordance with department -approved annual
standards and specifications, implemented to:
(1) Control the volume and velocity of stormwater runoff within the site to minimize soil
erosion;
(2) Control stormwater discharges, including peak flow rates and total stormwater volume,
to minimize erosion at outlets and to minimize downstream channel and stream bank
erosion;
Page 8 of 26
(3) Minimize the amount of soil exposed during the construction activity;
(4) Minimize the disturbance of steep slopes;
(5) Minimize sediment discharges from the site in a manner that addresses (i) the amount,
frequency, intensity, and duration of precipitation; (ii) the nature of resulting stormwater
runoff; and (iii) soil characteristics, including the range of soil particle sizes present on
the site;
(6) Provide and maintain natural buffers around surface waters, direct stormwater to
vegetated areas to increase sediment removal, and maximize stormwater infiltration,
unless infeasible;
(7) Minimize soil compaction and, unless infeasible, preserve topsoil;
(8) Ensure initiation of stabilization activities, as defined in 9VAC25-880-1, of disturbed
areas immediately whenever any clearing, grading, excavating, or other land -
disturbing activities have permanently ceased on any portion of the site, or temporarily
ceased on any portion of the site and will not resume for a period exceeding 14 days;
and
(9) Utilize outlet structures that withdraw stormwater from the surface (i.e., above the
permanent pool or wet storage water surface elevation), unless infeasible, when
discharging from sediment basins or sediment traps.
3. Stormwater management plan.
a. Except for those projects identified in Part II B 3 b, a stormwater management plan
approved by the VSMP authority as authorized under the Virginia Stormwater
Management Program (VSMP) Regulation (9VAC25-870), or an "agreement in lieu of a
stormwater management plan" as defined in 9VAC25-870-10 from the VSMP authority, or
a stormwater management plan prepared in accordance with annual standards and
specifications approved by the department.
b. For any operator meeting the conditions of 9VAC25-870-47 B of the VSMP regulation, an
approved stormwater management plan is not required. In lieu of an approved stormwater
management plan, the SWPPP shall include a description of, and all necessary
calculations supporting, all post -construction stormwater management measures that will
be installed prior to the completion of the construction process to control pollutants in
stormwater discharges after construction operations have been completed. Structural
measures should be placed on upland soils to the degree possible. Such measures must
be designed and installed in accordance with applicable VESCP authority, VSMP
authority, state, and federal requirements, and any necessary permits must be obtained.
Pollution prevention plan. A pollution prevention plan that addresses potential pollutant -
generating activities that may reasonably be expected to affect the quality of stormwater
discharges from the construction activity, including any support activity. The pollution
prevention plan shall:
a. Identify the potential pollutant -generating activities and the pollutant that is expected to be
exposed to stormwater;
Page 9 of 26
b. Describe the location where the potential pollutant -generating activities will occur, or if
identified on the site plan, reference the site plan;
c. Identify all nonstormwater discharges, as authorized in Part I E of this general permit, that
are or will be commingled with stormwater discharges from the construction activity,
including any applicable support activity;
d. Identify the person responsible for implementing the pollution prevention practice or
practices for each pollutant -generating activity (if other than the person listed as the
qualified personnel);
e. Describe the pollution prevention practices and procedures that will be implemented to:
(1) Prevent and respond to leaks, spills, and other releases including (i) procedures for
expeditiously stopping, containing, and cleaning up spills, leaks, and other releases;
and (ii) procedures for reporting leaks, spills, and other releases in accordance with
Part III G;
(2) Prevent the discharge of spilled and leaked fuels and chemicals from vehicle fueling
and maintenance activities (e.g., providing secondary containment such as spill
berms, decks, spill containment pallets, providing cover where appropriate, and having
spill kits readily available);
(3) Prevent the discharge of soaps, solvents, detergents, and wash water from
construction materials, including the clean-up of stucco, paint, form release oils, and
curing compounds (e.g., providing (i) cover (e.g., plastic sheeting or temporary roofs)
to prevent contact with stormwater; (ii) collection and proper disposal in a manner to
prevent contact with stormwater; and (iii) a similarly effective means designed to
prevent discharge of these pollutants);
(4) Minimize the discharge of pollutants from vehicle and equipment washing, wheel wash
water, and other types of washing (e.g., locating activities away from surface waters
and stormwater inlets or conveyance and directing wash waters to sediment basins or
traps, using filtration devices such as filter bags or sand filters, or using similarly
effective controls);
(5) Direct concrete wash water into a leak -proof container or leak -proof settling basin. The
container or basin shall be designed so that no overflows can occur due to inadequate
sizing or precipitation. Hardened concrete wastes shall be removed and disposed of
in a manner consistent with the handling of other construction wastes. Liquid concrete
wastes shall be removed and disposed of in a manner consistent with the handling of
other construction wash waters and shall not be discharged to surface waters;
(6) Minimize the discharge of pollutants from storage, handling, and disposal of
construction products, materials, and wastes including (i) building products such as
asphalt sealants, copper flashing, roofing materials, adhesives, and concrete
admixtures; (ii) pesticides, herbicides, insecticides, fertilizers, and landscape
Page 10 of 26
materials; and (iii) construction and domestic wastes such as packaging materials,
scrap construction materials, masonry products, timber, pipe and electrical cuttings,
plastics, Styrofoam, concrete, and other trash or building materials;
(7) Prevent the discharge of fuels, oils, and other petroleum products, hazardous or toxic
wastes, waste concrete, and sanitary wastes;
(8) Address any other discharge from the potential pollutant -generating activities not
addressed above;
(9) Minimize the exposure of waste materials to precipitation by closing or covering waste
containers during precipitation events and at the end of the business day, or
implementing other similarly effective practices. Minimization of exposure is not
required in cases where the exposure to precipitation will not result in a discharge of
pollutants; and
f. Describe procedures for providing pollution prevention awareness of all applicable wastes,
including any wash water, disposal practices, and applicable disposal locations of such
wastes, to personnel in order to comply with the conditions of this general permit. The
operator shall implement the procedures described in the SWPPP.
SWPPP requirements for discharges to nutrient and sediment impaired waters. For
discharges to surface waters (i) identified as impaired in the 2016 § 305(b)/303(d) Water
Quality Assessment Integrated Report or (ii) with an applicable TMDL wasteload allocation
established and approved prior to the term of this general permit for sediment for a sediment -
related parameter (i.e., total suspended solids or turbidity) or nutrients (i.e., nitrogen or
phosphorus), the operator shall:
a. Identify the impaired waters, approved TMDLs, and pollutants of concern in the SWPPP;
and
b. Provide clear direction in the SWPPP that:
(1) Permanent or temporary soil stabilization shall be applied to denuded areas within
seven days after final grade is reached on any portion of the site;
(2) Nutrients shall be applied in accordance with manufacturer's recommendations or an
approved nutrient management plan and shall not be applied during rainfall events;
and
(3) A modified inspection schedule shall be implemented in accordance with Part II G 2 a.
SWPPP requirements for discharges to polychlorinated biphenyl (PCB) impaired waters. For
discharges from construction activities that include the demolition of any structure with at least
10,000 square feet of floor space built or renovated before January 1, 1980, to surface waters
(i) identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated
Report or (ii) with an applicable TMDL wasteload allocation established and approved prior to
the term of this general permit for PCB, the operator shall:
Page 11 of 26
a. Identify the impaired waters, approved TMDLs, and pollutant of concern in the SWPPP;
b. Implement the approved erosion and sediment control plan in accordance with Part II B 2;
c. Dispose of waste materials in compliance with applicable state, federal, and local
requirements; and
d. Implement a modified inspection schedule in accordance with Part II G 2 a.
7. SWPPP requirements for discharges to exceptional waters. For discharges to surface waters
identified in 9VAC25-260-30 A 3 c as an exceptional water, the operator shall:
a. Identify the exceptional surface waters in the SWPPP; and
b. Provide clear direction in the SWPPP that:
(1) Permanent or temporary soil stabilization shall be applied to denuded areas within
seven days after final grade is reached on any portion of the site;
(2) Nutrients shall be applied in accordance with manufacturer's recommendations or an
approved nutrient management plan and shall not be applied during rainfall events;
and
(3) A modified inspection schedule shall be implemented in accordance with Part II G 2 a.
8. Identification of qualified personnel. The name, phone number, and qualifications of the
qualified personnel conducting inspections required by this general permit.
9. Delegation of authority. The individuals or positions with delegated authority, in accordance
with Part III K, to sign inspection reports or modify the SWPPP.
10. SWPPP signature. The SWPPP shall be signed and dated in accordance with Part III K.
C. SWPPP amendments, modification, and updates.
1. The operator shall amend the SWPPP whenever there is a change in the design, construction,
operation, or maintenance that has a significant effect on the discharge of pollutants to surface
waters and that has not been previously addressed in the SWPPP.
The SWPPP shall be amended if, during inspections or investigations by the operator's
qualified personnel, or by local, state, or federal officials, it is determined that the existing
control measures are ineffective in minimizing pollutants in discharges from the construction
activity. Revisions to the SWPPP shall include additional or modified control measures
designed and implemented to correct problems identified. If approval by the VESCP authority,
VSMP authority, or department is necessary for the control measure, revisions to the SWPPP
shall be completed no later than seven calendar days following approval. Implementation of
these additional or modified control measures shall be accomplished as described in Part II
H.
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3. The SWPPP shall clearly identify the contractors that will implement and maintain each control
measure identified in the SWPPP. The SWPPP shall be amended to identify any new
contractor that will implement and maintain a control measure.
4. The operator shall update the SWPPP as soon as possible but no later than seven days
following any modification to its implementation. All modifications or updates to the SWPPP
shall be noted and shall include the following items:
a. A record of dates when:
(1) Major grading activities occur;
(2) Construction activities temporarily or permanently cease on a portion of the site; and
(3) Stabilization measures are initiated;
b. Documentation of replaced or modified controls where periodic inspections or other
information have indicated that the controls have been used inappropriately or incorrectly
and were modified;
c. Areas that have reached final stabilization and where no further SWPPP or inspection
requirements apply;
d. All properties that are no longer under the legal control of the operator and the dates on
which the operator no longer had legal control over each property;
e. The date of any prohibited discharges, the discharge volume released, and what actions
were taken to minimize the impact of the release;
f. Measures taken to prevent the reoccurrence of any prohibited discharge; and
g. Measures taken to address any evidence identified as a result of an inspection required
under Part II G.
5. Amendments, modifications, or updates to the SWPPP shall be signed in accordance with
Part III K.
D. Public notification. Upon commencement of land disturbance, the operator shall post
conspicuously a copy of the notice of coverage letter near the main entrance of the construction
activity. For linear projects, the operator shall post the notice of coverage letter at a publicly
accessible location near an active part of the construction project (e.g., where a pipeline crosses
a public road). The operator shall maintain the posted information until termination of general
permit coverage as specified in Part I F.
E. SWPPP availability.
1. Operators with day-to-day operational control over SWPPP implementation shall have a copy
of the SWPPP available at a central location on -site for use by those identified as having
responsibilities under the SWPPP whenever they are on the construction site.
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The operator shall make the SWPPP and all amendments, modifications, and updates
available upon request to the department, the VSMP authority, the EPA, the VESCP authority,
local government officials, or the operator of a municipal separate storm sewer system
receiving discharges from the construction activity. If an on -site location is unavailable to store
the SWPPP when no personnel are present, notice of the SWPPP's location shall be posted
near the main entrance of the construction site.
The operator shall make the SWPPP available for public review in an electronic format or in
hard copy. Information for public access to the SWPPP shall be posted and maintained in
accordance with Part II D. If not provided electronically, public access to the SWPPP may be
arranged upon request at a time and at a publicly accessible location convenient to the
operator or his designee but shall be no less than once per month and shall be during normal
business hours. Information not required to be contained within the SWPPP by this general
permit is not required to be released.
F. SWPPP implementation. The operator shall implement the SWPPP and subsequent
amendments, modifications, and updates from commencement of land disturbance until
termination of general permit coverage as specified in Part I F.
All control measures shall be properly maintained in effective operating condition in
accordance with good engineering practices and, where applicable, manufacturer
specifications. If a site inspection required by Part II G identifies a control measure that is not
operating effectively, corrective actions shall be completed as soon as practicable, but no later
than seven days after discovery or a longer period as established by the VSMP authority, to
maintain the continued effectiveness of the control measures.
If site inspections required by Part II G identify an existing control measure that needs to be
modified or if an additional or alternative control measure is necessary for any reason,
implementation shall be completed prior to the next anticipated measurable storm event. If
implementation prior to the next anticipated measurable storm event is impracticable, then
additional or alternative control measures shall be implemented as soon as practicable, but
no later than seven days after discovery or a longer period as established by the VSMP
authority.
G. SWPPP Inspections.
1. Personnel responsible for on -site and off -site inspections. Inspections required by this general
permit shall be conducted by the qualified personnel identified by the operator in the SWPPP.
The operator is responsible for ensuring that the qualified personnel conduct the inspection.
2. Inspection schedule.
a. For construction activities that discharge to a surface water identified in Part 11 B 5 and B
6 as impaired or having an approved TMDL or Part I B 7 as exceptional, the following
inspection schedule requirements apply:
(1) Inspections shall be conducted at a frequency of (i) at least once every four business
days or (ii) at least once every five business days and no later than 24 hours following
a measurable storm event. In the event that a measurable storm event occurs when
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there are more than 24 hours between business days, the inspection shall be
conducted on the next business day; and
(2) Representative inspections as authorized in Part II G 2 d shall not be allowed.
b. Except as specified in Part II G 2 a, inspections shall be conducted at a frequency of:
(1) At least once every five business days; or
(2) At least once every 10 business days and no later than 24 hours following a
measurable storm event. In the event that a measurable storm event occurs when
there are more than 24 hours between business days, the inspection shall be
conducted on the next business day.
c. Where areas have been temporarily stabilized or land -disturbing activities will be
suspended due to continuous frozen ground conditions and stormwater discharges are
unlikely, the inspection frequency described in Part II G 2 a and 2 b may be reduced to
once per month. If weather conditions (such as above freezing temperatures or rain or
snow events) make discharges likely, the operator shall immediately resume the regular
inspection frequency.
d. Except as prohibited in Part 11 G 2 a (2), representative inspections may be utilized for
utility line installation, pipeline construction, or other similar linear construction activities
provided that:
(1) Temporary or permanent soil stabilization has been installed and vehicle access may
compromise the temporary or permanent soil stabilization and potentially cause
additional land disturbance increasing the potential for erosion;
(2) Inspections occur on the same frequency as other construction activities;
(3) Control measures are inspected along the construction site 0.25 miles above and
below each access point (i.e., where a roadway, undisturbed right-of-way, or other
similar feature intersects the construction activity and access does not compromise
temporary or permanent soil stabilization); and
(4) Inspection locations are provided in the inspection report required by Part II G.
e. If adverse weather causes the safety of the inspection personnel to be in jeopardy, the
inspection may be delayed until the next business day on which it is safe to perform the
inspection. Any time inspections are delayed due to adverse weather conditions, evidence
of the adverse weather conditions shall be included in the SWPPP with the dates of
occurrence.
3. Inspection requirements.
a. As part of the inspection, the qualified personnel shall:
(1) Record the date and time of the inspection and, when applicable, the date and rainfall
amount of the last measurable storm event;
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(2) Record the information and a description of any discharges occurring at the time of
the inspection or evidence of discharges occurring prior to the inspection;
(3) Record any land -disturbing activities that have occurred outside of the approved
erosion and sediment control plan;
(4) Inspect the following for installation in accordance with the approved erosion and
sediment control plan, identification of any maintenance needs, and evaluation of
effectiveness in minimizing sediment discharge, including whether the control has
been inappropriately or incorrectly used:
(a) All perimeter erosion and sediment controls, such as silt fence;
(b) Soil stockpiles, when applicable, and borrow areas for stabilization or sediment
trapping measures;
(c) Completed earthen structures, such as dams, dikes, ditches, and diversions for
stabilization and effective impoundment or flow control;
(d) Cut and fill slopes;
(e) Sediment basins and traps, sediment barriers, and other measures installed to
control sediment discharge from stormwater;
(f) Temporary or permanent channels, flumes, or other slope drain structures
installed to convey concentrated runoff down cut and fill slopes;
(g) Storm inlets that have been made operational to ensure that sediment laden
stormwater does not enter without first being filtered or similarly treated; and
(h) Construction vehicle access routes that intersect or access paved or public roads
for minimizing sediment tracking;
(5) Inspect areas that have reached final grade or that will remain dormant for more than
14 days to ensure:
(a) Initiation of stabilization activities have occurred immediately, as defined in
9VAC25-880-1; and
(b) Stabilization activities have been completed within seven days of reaching grade
or stopping work;
(6) Inspect for evidence that the approved erosion and sediment control plan, "agreement
in lieu of a plan," or erosion and sediment control plan prepared in accordance with
department -approved annual standards and specifications has not been properly
implemented. This includes:
Page 16 of 26
(a) Concentrated flows of stormwater in conveyances such as rills, rivulets, or
channels that have not been filtered, settled, or similarly treated prior to discharge,
or evidence thereof;
(b) Sediment laden or turbid flows of stormwater that have not been filtered or settled
to remove sediments prior to discharge;
(c) Sediment deposition in areas that drain to unprotected stormwater inlets or catch
basins that discharge to surface waters. Inlets and catch basins with failing
sediment controls due to improper installation, lack of maintenance, or inadequate
design are considered unprotected;
(d) Sediment deposition on any property (including public and private streets) outside
of the construction activity covered by this general permit;
(e) Required stabilization has not been initiated or completed or is not effective on
portions of the site;
(f) Sediment basins without adequate wet or dry storage volume or sediment basins
that allow the discharge of stormwater from below the surface of the wet storage
portion of the basin;
(g) Sediment traps without adequate wet or dry storage or sediment traps that allow
the discharge of stormwater from below the surface of the wet storage portion of
the trap; and
(h) Land disturbance or sediment deposition outside of the approved area to be
disturbed;
(7) Inspect pollutant generating activities identified in the pollution prevention plan for the
proper implementation, maintenance, and effectiveness of the procedures and
practices;
(8) Identify any pollutant generating activities not identified in the pollution prevention plan;
and
(9) Identify and document the presence of any evidence of the discharge of pollutants
prohibited by this general permit.
4. Inspection report. Each inspection report shall include the following items:
a. The date and time of the inspection and, when applicable, the date and rainfall amount of
the last measurable storm event;
b. Summarized findings of the inspection;
c. The locations of prohibited discharges;
d. The locations of control measures that require maintenance;
Page 17 of 26
e. The locations of control measures that failed to operate as designed or proved inadequate
or inappropriate for a particular location;
f. The locations where any evidence identified under Part II G 3 a (6) exists;
g. The locations where any additional control measure is needed;
h. A list of corrective actions required (including any changes to the SWPPP that are
necessary) as a result of the inspection or to maintain permit compliance;
i. Documentation of any corrective actions required from a previous inspection that have not
been implemented; and
The date and signature of the qualified personnel and the operator or its duly authorized
representative.
5. The inspection report shall be included into the SWPPP no later than four business days after
the inspection is complete.
The inspection report and any actions taken in accordance with Part II shall be retained by
the operator as part of the SWPPP for at least three years from the date that general permit
coverage expires or is terminated. The inspection report shall identify any incidents of
noncompliance. Where an inspection report does not identify any incidents of noncompliance,
the report shall contain a certification that the construction activity is in compliance with the
SWPPP and this general permit. The report shall be signed in accordance with Part III K of
this general permit.
H. Corrective actions.
The operator shall implement the corrective actions identified as a result of an inspection as
soon as practicable but no later than seven days after discovery or a longer period as
approved by the VSMP authority. If approval of a corrective action by a regulatory authority
(e.g., VSMP authority, VESCP authority, or the department) is necessary, additional control
measures shall be implemented to minimize pollutants in stormwater discharges until such
approvals can be obtained.
The operator may be required to remove accumulated sediment deposits located outside of
the construction activity covered by this general permit as soon as practicable in order to
minimize environmental impacts. The operator shall notify the VSMP authority and the
department as well as obtain all applicable federal, state, and local authorizations,
approvals, and permits prior to the removal of sediments accumulated in surface waters
including wetlands.
Page 18 of 26
PART III
CONDITIONS APPLICABLE TO ALL VPDES PERMITS
NOTE: Discharge monitoring is not required for this general permit. If the operator chooses to
monitor stormwater discharges or control measures, the operator shall comply with the
requirements of subsections A, B, and C, as appropriate.
A. Monitoring.
1. Samples and measurements taken for the purpose of monitoring shall be representative of
the monitoring activity.
Monitoring shall be conducted according to procedures approved under 40 CFR Part 136 or
alternative methods approved by the U.S. Environmental Protection Agency, unless other
procedures have been specified in this general permit. Analyses performed according to test
procedures approved under 40 CFR Part 136 shall be performed by an environmental
laboratory certified under regulations adopted by the Department of General Services
(1 VAC30-45 or 1 VAC30-46).
3. The operator shall periodically calibrate and perform maintenance procedures on all
monitoring and analytical instrumentation at intervals that will ensure accuracy of
measurements.
B. Records.
1. Monitoring records and reports shall include
a. The date, exact place, and time of sampling or measurements;
b. The individuals who performed the sampling or measurements;
c. The dates and times analyses were performed;
d. The individuals who performed the analyses;
e. The analytical techniques or methods used; and
f. The results of such analyses.
2. The operator shall retain records of all monitoring information, including all calibration and
maintenance records and all original strip chart recordings for continuous monitoring
instrumentation, copies of all reports required by this general permit, and records of all data
used to complete the registration statement for this general permit, for a period of at least
three years from the date of the sample, measurement, report or request for coverage. This
period of retention shall be extended automatically during the course of any unresolved
litigation regarding the regulated activity or regarding control standards applicable to the
operator, or as requested by the board.
C. Reporting monitoring results.
Page 19 of 26
1. The operator shall update the SWPPP to include the results of the monitoring as may be
performed in accordance with this general permit, unless another reporting schedule is
specified elsewhere in this general permit.
2. Monitoring results shall be reported on a discharge monitoring report (DMR); on forms
provided, approved or specified by the department; or in any format provided that the date,
location, parameter, method, and result of the monitoring activity are included.
If the operator monitors any pollutant specifically addressed by this general permit more
frequently than required by this general permit using test procedures approved under 40 CFR
Part 136 or using other test procedures approved by the U.S. Environmental Protection
Agency or using procedures specified in this general permit, the results of this monitoring shall
be included in the calculation and reporting of the data submitted in the DMR or reporting form
specified by the department.
4. Calculations for all limitations which require averaging of measurements shall utilize an
arithmetic mean unless otherwise specified in this general permit.
D. Duty to provide information. The operator shall furnish, within a reasonable time, any
information which the board may request to determine whether cause exists for terminating this
general permit coverage or to determine compliance with this general permit. The board,
department, EPA, or VSMP authority may require the operator to furnish, upon request, such
plans, specifications, and other pertinent information as may be necessary to determine the effect
of the wastes from his discharge on the quality of surface waters, or such other information as
may be necessary to accomplish the purposes of the CWA and the Virginia Stormwater
Management Act. The operator shall also furnish to the board, department, EPA, or VSMP
authority, upon request, copies of records required to be kept by this general permit.
E. Compliance schedule reports. Reports of compliance or noncompliance with, or any progress
reports on, interim and final requirements contained in any compliance schedule of this general
permit shall be submitted no later than 14 days following each schedule date.
F. Unauthorized stormwater discharges. Pursuant to § 62.1-44.5 of the Code of Virginia, except
in compliance with a state permit issued by the department, it shall be unlawful to cause a
stormwater discharge from a construction activity.
G. Reports of unauthorized discharges. Any operator who discharges or causes or allows a
discharge of sewage, industrial waste, other wastes or any noxious or deleterious substance or a
hazardous substance or oil in an amount equal to or in excess of a reportable quantity established
under either 40 CFR Part 110, 40 CFR Part 117, 40 CFR Part 302, or § 62.1-44.34:19 of the Code
of Virginia that occurs during a 24-hour period into or upon surface waters or who discharges or
causes or allows a discharge that may reasonably be expected to enter surface waters, shall
notify the Department of Environmental Quality of the discharge immediately upon discovery of
the discharge, but in no case later than within 24 hours after said discovery. A written report of
the unauthorized discharge shall be submitted to the department and the VSMP authority within
five days of discovery of the discharge. The written report shall contain:
1. A description of the nature and location of the discharge;
2. The cause of the discharge;
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3. The date on which the discharge occurred;
4. The length of time that the discharge continued;
5. The volume of the discharge;
6. If the discharge is continuing, how long it is expected to continue;
7. If the discharge is continuing, what the expected total volume of the discharge will be; and
Any steps planned or taken to reduce, eliminate and prevent a recurrence of the present
discharge or any future discharges not authorized by this general permit.
Discharges reportable to the department and the VSMP authority under the immediate reporting
requirements of other regulations are exempted from this requirement.
H. Reports of unusual or extraordinary discharges. If any unusual or extraordinary discharge
including a "bypass" or "upset," as defined in this general permit, should occur from a facility and
the discharge enters or could be expected to enter surface waters, the operator shall promptly
notify, in no case later than within 24 hours, the department and the VSMP authority by telephone
after the discovery of the discharge. This notification shall provide all available details of the
incident, including any adverse effects on aquatic life and the known number of fish killed. The
operator shall reduce the report to writing and shall submit it to the department and the VSMP
authority within five days of discovery of the discharge in accordance with Part III 12. Unusual
and extraordinary discharges include any discharge resulting from:
1. Unusual spillage of materials resulting directly or indirectly from processing operations;
2. Breakdown of processing or accessory equipment;
3. Failure or taking out of service of some or all of the facilities; and
4. Flooding or other acts of nature.
I. Reports of noncompliance. The operator shall report any noncompliance which may adversely
affect surface waters or may endanger public health.
An oral report to the department and the VSMP authority shall be provided within 24 hours
from the time the operator becomes aware of the circumstances. The following shall be
included as information that shall be reported within 24 hours under this subdivision:
a. Any unanticipated bypass; and
b. Any upset that causes a discharge to surface waters.
2. A written report shall be submitted within five days and shall contain:
a. A description of the noncompliance and its cause;
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b. The period of noncompliance, including exact dates and times, and if the noncompliance
has not been corrected, the anticipated time it is expected to continue; and
c. Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the
noncompliance.
The department may waive the written report on a case -by -case basis for reports of
noncompliance under Part III I if the oral report has been received within 24 hours and no
adverse impact on surface waters has been reported.
3. The operator shall report all instances of noncompliance not reported under Part III 1 1 or 2 in
writing as part of the SWPPP. The reports shall contain the information listed in Part III 1 2.
NOTE: The reports required in Part III G, H and I shall be made to the department and the VSMP
authority. Reports may be made by telephone, email, or by fax. For reports outside normal working
hours, leaving a recorded message shall fulfill the immediate reporting requirement. For
emergencies, the Virginia Department of Emergency Management maintains a 24-hour telephone
service at 1-800-468-8892.
4. Where the operator becomes aware of a failure to submit any relevant facts, or submittal of
incorrect information in any report, including a registration statement, to the department or the
VSMP authority, the operator shall promptly submit such facts or correct information.
J. Notice of planned changes.
1. The operator shall give notice to the department and the VSMP authority as soon as possible
of any planned physical alterations or additions to the permitted facility or activity. Notice is
required only when:
a. The operator plans an alteration or addition to any building, structure, facility, or installation
that may meet one of the criteria for determining whether a facility is a new source in
9VAC25-870-420;
b. The operator plans an alteration or addition that would significantly change the nature or
increase the quantity of pollutants discharged. This notification applies to pollutants that
are not subject to effluent limitations in this general permit; or
2. The operator shall give advance notice to the department and VSMP authority of any planned
changes in the permitted facility or activity, which may result in noncompliance with state
permit requirements.
K. Signatory requirements.
1. Registration statement. All registration statements shall be signed as follows:
a. For a corporation: by a responsible corporate officer. For the purpose of this chapter, a
responsible corporate officer means: (i) a president, secretary, treasurer, or vice-president
of the corporation in charge of a principal business function, or any other person who
performs similar policy -making or decision -making functions for the corporation; or (ii) the
manager of one or more manufacturing, production, or operating facilities, provided the
Page 22 of 26
manager is authorized to make management decisions that govern the operation of the
regulated facility including having the explicit or implicit duty of making major capital
investment recommendations, and initiating and directing other comprehensive measures
to assure long-term compliance with environmental laws and regulations; the manager
can ensure that the necessary systems are established or actions taken to gather
complete and accurate information for state permit application requirements; and where
authority to sign documents has been assigned or delegated to the manager in
accordance with corporate procedures;
b. For a partnership or sole proprietorship: by a general partner or the proprietor,
respectively; or
c. For a municipality, state, federal, or other public agency: by either a principal executive
officer or ranking elected official. For purposes of this chapter, a principal executive officer
of a public agency includes (i) the chief executive officer of the agency or (ii) a senior
executive officer having responsibility for the overall operations of a principal geographic
unit of the agency.
2. Reports and other information. All reports required by this general permit, including SWPPPs,
and other information requested by the board or the department shall be signed by a person
described in Part III K 1 or by a duly authorized representative of that person. A person is a
duly authorized representative only if:
a. The authorization is made in writing by a person described in Part III K 1;
b. The authorization specifies either an individual or a position having responsibility for the
overall operation of the regulated facility or activity such as the position of plant manager,
operator of a well or a well field, superintendent, position of equivalent responsibility, or
an individual or position having overall responsibility for environmental matters for the
operator. (A duly authorized representative may thus be either a named individual or any
individual occupying a named position); and
c. The signed and dated written authorization is included in the SWPPP. A copy shall be
provided to the department and VSMP authority, if requested.
3. Changes to authorization. If an authorization under Part III K 2 is no longer accurate because
a different individual or position has responsibility for the overall operation of the construction
activity, a new authorization satisfying the requirements of Part III K 2 shall be submitted to
the VSMP authority as the administering entity for the board prior to or together with any
reports or information to be signed by an authorized representative.
4. Certification. Any person signing a document under Part II I K 1 or 2 shall make the following
certification:
"I certify under penalty of law that I have read and understand this document and that this
document and all attachments were prepared in accordance with a system designed to assure
that qualified personnel properly gathered and evaluated the information submitted. Based on
my inquiry of the person or persons who manage the system, or those persons directly
responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate, and complete. I am aware that there are significant
Page 23 of 26
penalties for submitting false information, including the possibility of fine and imprisonment for
knowing violations."
L. Duty to comply. The operator shall comply with all conditions of this general permit. Any state
permit noncompliance constitutes a violation of the Virginia Stormwater Management Act and the
Clean Water Act, except that noncompliance with certain provisions of this general permit may
constitute a violation of the Virginia Stormwater Management Act but not the Clean Water Act.
Permit noncompliance is grounds for enforcement action; for state permit coverage, termination,
revocation and reissuance, or modification; or denial of a state permit renewal application.
The operator shall comply with effluent standards or prohibitions established under § 307(a)
of the Clean Water Act for toxic pollutants within the time provided in the regulations that establish
these standards or prohibitions or standards for sewage sludge use or disposal, even if this
general permit has not yet been modified to incorporate the requirement.
M. Duty to reapply. If the operator wishes to continue an activity regulated by this general permit
after the expiration date of this general permit, the operator shall submit a new registration
statement at least 60 days before the expiration date of the existing general permit, unless
permission for a later date has been granted by the board. The board shall not grant permission
for registration statements to be submitted later than the expiration date of the existing general
permit.
N. Effect of a state permit. This general permit does not convey any property rights in either real
or personal property or any exclusive privileges, nor does it authorize any injury to private property
or invasion of personal rights, or any infringement of federal, state or local law or regulations.
O. State law. Nothing in this general permit shall be construed to preclude the institution of any
legal action under, or relieve the operator from any responsibilities, liabilities, or penalties
established pursuant to any other state law or regulation or under authority preserved by § 510 of
the Clean Water Act. Except as provided in general permit conditions on "bypassing" (Part III U)
and "upset' (Part III V), nothing in this general permit shall be construed to relieve the operator
from civil and criminal penalties for noncompliance.
P. Oil and hazardous substance liability. Nothing in this general permit shall be construed to
preclude the institution of any legal action or relieve the operator from any responsibilities,
liabilities, or penalties to which the operator is or may be subject under §§ 62.1-44.34:14 through
62.1-44.34:23 of the State Water Control Law or § 311 of the Clean Water Act.
Q. Proper operation and maintenance. The operator shall at all times properly operate and
maintain all facilities and systems of treatment and control (and related appurtenances), which
are installed or used by the operator to achieve compliance with the conditions of this general
permit. Proper operation and maintenance also includes effective plant performance, adequate
funding, adequate staffing, and adequate laboratory and process controls, including appropriate
quality assurance procedures. This provision requires the operation of back-up or auxiliary
facilities or similar systems, which are installed by the operator only when the operation is
necessary to achieve compliance with the conditions of this general permit.
R. Disposal of solids or sludges. Solids, sludges or other pollutants removed in the course of
treatment or management of pollutants shall be disposed of in a manner so as to prevent any
pollutant from such materials from entering surface waters and in compliance with all applicable
state and federal laws and regulations.
Page 24 of 26
S. Duty to mitigate. The operator shall take all steps to minimize or prevent any discharge in
violation of this general permit that has a reasonable likelihood of adversely affecting human
health or the environment.
T. Need to halt or reduce activity not a defense. It shall not be a defense for an operator in an
enforcement action that it would have been necessary to halt or reduce the permitted activity in
order to maintain compliance with the conditions of this general permit.
U. Bypass.
1. 'Bypass," as defined in 9VAC25-870-10, means the intentional diversion of waste streams
from any portion of a treatment facility. The operator may allow any bypass to occur that does
not cause effluent limitations to be exceeded, but only if it also is for essential maintenance to
ensure efficient operation. These bypasses are not subject to the provisions of Part III U 2 and
3.
2. Notice.
a. Anticipated bypass. If the operator knows in advance of the need for a bypass, the
operator shall submit prior notice to the department, if possible at least 10 days before the
date of the bypass.
b. Unanticipated bypass. The operator shall submit notice of an unanticipated bypass as
required in Part III I.
3. Prohibition of bypass.
a. Except as provided in Part III U 1, bypass is prohibited, and the board or department may
take enforcement action against an operator for bypass unless:
(1) Bypass was unavoidable to prevent loss of life, personal injury, or severe property
damage. Severe property damage means substantial physical damage to property,
damage to the treatment facilities that causes them to become inoperable, or
substantial and permanent loss of natural resources that can reasonably be expected
to occur in the absence of a bypass. Severe property damage does not mean
economic loss caused by delays in production;
(2) There were no feasible alternatives to the bypass, such as the use of auxiliary
treatment facilities, retention of untreated wastes, or maintenance during normal
periods of equipment downtime. This condition is not satisfied if adequate back-up
equipment should have been installed in the exercise of reasonable engineering
judgment to prevent a bypass that occurred during normal periods of equipment
downtime or preventive maintenance; and
(3) The operator submitted notices as required under Part III U 2.
b. The department may approve an anticipated bypass, after considering its adverse effects,
if the department determines that it will meet the three conditions listed in Part III U 3 a.
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V. Upset.
1. An "upset," as defined in 9VAC25-870-10, means an exceptional incident in which there is
unintentional and temporary noncompliance with technology -based state permit effluent
limitations because of factors beyond the reasonable control of the operator. An upset does
not include noncompliance to the extent caused by operational error, improperly designed
treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or
careless or improper operation.
2. An upset constitutes an affirmative defense to an action brought for noncompliance with
technology -based state permit effluent limitations if the requirements of Part III V 4 are met.
A determination made during administrative review of claims that noncompliance was caused
by upset, and before an action for noncompliance, is not a final administrative action subject
to judicial review.
3. An upset does not include noncompliance to the extent caused by operational error,
improperly designed treatment facilities, inadequate treatment facilities, lack of preventative
maintenance, or careless or improper operation.
4. An operator who wishes to establish the affirmative defense of upset shall demonstrate,
through properly signed, contemporaneous operating logs or other relevant evidence that:
a. An upset occurred and that the operator can identify the cause of the upset;
b. The permitted facility was at the time being properly operated;
c. The operator submitted notice of the upset as required in Part III I; and
d. The operator complied with any remedial measures required under Part III S.
5. In any enforcement proceeding, the operator seeking to establish the occurrence of an upset
has the burden of proof.
W. Inspection and entry. The operator shall allow the department as the board's designee, the
VSMP authority, EPA, or an authorized representative of either entity (including an authorized
contractor), upon presentation of credentials and other documents as may be required by law to:
1. Enter upon the operator's premises where a regulated facility or activity is located or
conducted, or where records shall be kept under the conditions of this general permit;
2. Have access to and copy, at reasonable times, any records that shall be kept under the
conditions of this general permit;
3. Inspect and photograph at reasonable times any facilities, equipment (including monitoring
and control equipment), practices, or operations regulated or required under this general
permit; and
4. Sample or monitor at reasonable times, for the purposes of ensuring state permit compliance
or as otherwise authorized by the Clean Water Act or the Virginia Stormwater Management
Act, any substances or parameters at any location.
Page 26 of 26
For purposes of this section, the time for inspection shall be deemed reasonable during regular
business hours, and whenever the facility is discharging. Nothing contained herein shall make an
inspection unreasonable during an emergency.
X. State permit actions. State permit coverage may be modified, revoked and reissued, or
terminated for cause. The filing of a request by the operator for a state permit modification,
revocation and reissuance, or termination, or a notification of planned changes or anticipated
noncompliance does not stay any state permit condition.
Y. Transfer of state permit coverage.
1. State permits are not transferable to any person except after notice to the department. Except
as provided in Part III Y 2, a state permit may be transferred by the operator to a new operator
only if the state permit has been modified or revoked and reissued, or a minor modification
made, to identify the new operator and incorporate such other requirements as may be
necessary under the Virginia Stormwater Management Act and the Clean Water Act.
As an alternative to transfers under Part III Y 1, this state permit may be automatically
transferred to a new operator if:
a. The current operator notifies the department at least 30 days in advance of the proposed
transfer of the title to the facility or property;
b. The notice includes a written agreement between the existing and new operators
containing a specific date for transfer of state permit responsibility, coverage, and liability
between them; and
c. The department does not notify the existing operator and the proposed new operator of
its intent to modify or revoke and reissue the state permit. If this notice is not received, the
transfer is effective on the date specified in the agreement mentioned in Part III Y 2 b.
For ongoing construction activity involving a change of operator, the new operator shall accept
and maintain the existing SWPPP, or prepare and implement a new SWPPP prior to taking
over operations at the site.
Z. Severability. The provisions of this general permit are severable, and if any provision of this
general permit or the application of any provision of this state permit to any circumstance, is held
invalid, the application of such provision to other circumstances and the remainder of this general
permit shall not be affected thereby.
APPX C- VSMP Registration Statement, Notice of Coverage Letter, and Notice of Termination (if applicable)
27
VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY
GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM
CONSTRUCTION ACTIVITIES (VAR10)
REGISTRATION STATEMENT 2019
Application type. ® NEW PERMIT ISSUANCE
(CHOOSE ONE) ❑ MODIFICATION WITH ACREAGE INCREASE
❑ MODIFICATION WITHOUT ACREAGE INCREASE
❑ EXISTING PERMIT RE -ISSUANCE
Section I. Operator/Permittee Information.
PERMIT #:
PLAN/ID #:
TECHNICAL CRITERIA: 1113 ❑ IIC ❑
A. Construction Activity Operator (Permittee). The person or entity that is applying for permit coverage and will have
operational control over construction activities to ensure compliance with the general permit. A person with
signatory authority for this operator must sign the certification in Section VI. (per Part III. K. of the VAR10 Permit).
Operator Name:
Contact person:
Address:
City, State Zip Code:
Phone Number:
New Belvedere Inc.
610 West Rio Rd.
VA 22901
Primary Email: skrohn@resortcompanies.com
CC Email: riki@roudabush.com
B. Billing Information (leave blank if same as the Operator identified in Section I. A. above). This entity will receive
Annual Permit Maintenance and Permit Modification Fee invoices (if applicable).
Name:
Contact Person:
Address:
City, State Zip Code:
Phone Number:
Primary Email:
CC Email:
C. May we transmit correspondence electronically? You must choose YES and include a valid email in order to pay by
credit card and to receive your permit coverage approval letter via email: YES ® NO ❑
Section II. Construction Activity Location Information. Project site information.
A. Include a site map showing the location of the existing or proposed land -disturbing activities, the limits of land
disturbance, construction entrances and all water bodies receiving stormwater discharges from the site.
B. Construction Activity Name: Belvedere Phase 5
Address: Intersection of Farrow Dr. and Fowler St.
City and/or County and Zip Code: Charlottesville, VA 22901
Latitude and Longitude
(6-digit, decimal degrees format): 38.075962,-78.452513
C. Construction Activity Entrance Location
(description, street address and/or
latitude/longitude in decimal degrees): 38.075962,-78.452513
Rev 01/2020 PAGE 1 ( 6
CONSTRUCTION GENERAL PERMIT (VAR30) REGISTRATION STATEMENT 2019
Section III. Offsite Support Activity Location Information. List all offsite support activities to be included under this
permit registration. Enter additional areas on a separate page. Offsite areas not included on this registration will need
to obtain coverage under a separate VPDES permit.
A. Offsite Activity Name:
Address:
City and/or County and Zip Code:
Latitude and Longitude
(6-digit, decimal degrees format):
B. Offsite Activity Entrance Location
(description, street address and/or
latitude/longitude in decimal degrees):
Section IV. Site Information.
A. Property Owner Status:
B. Nature of the Construction Activity Description (i.e.
commercial, industrial, residential, agricultural,
environmental):
C. Municipal Separate Storm Sewer System (MS4)
name(s) (if the site is discharging to a MS4):
FEDERAL ❑ STATE ❑ PUBLIC ❑ PRIVATE IN
Residential
D. Acreage totals for all land -disturbing activities to be included under this
permit coverage. Report to the nearest one -hundredth of an acre.
Total land area of development (including the entire
area to be disturbed as approved in the Stormwater
15 acres
Management Plan):
Primary estimated area to be disturbed (portions with
Erosion and Sediment Control Plan approval only):
14.46
Offsite estimated area to be disturbed (if applicable):
E. Estimated Project Dates
(M M/DD/YYYY)
Start date:
11/09/2020
Completion date:
05/31/2024
F. Is this construction activity part of a common plan of development or sale? YES ❑ NO IN
G. 6`h Order Hydrologic Unit Code (HUC) and Receiving Water Name(s). Attach a separate list if needed.
HUC
I RECEIVING WATERBODY(S)
JR14 (HUCO20802040401)
Rivanna River -Meadow Creek
JR08 (HUCO20802040203)
South Fork Rivanna River
Section V. Other Information.
A. A stormwater pollution prevention plan (SWPPP) must be prepared in accordance with the requirements of the
General VPDES Permit for Discharges of Stormwater from Construction Activities rip or to submitting the Registration
Statement. By signing the Registration Statement, the operator is certifying that the SWPPP has been prepared.
B. Has an Erosion and Sediment Control Plan been submitted to the VESC Authority for review? YES IN NO ❑
C.
Erosion and Sediment Control Plan Approval Date (for estimated area to be disturbed).:
Has land disturbance has commenced? YES ❑ NO ER
D. Annual Standards and Specifications. If this project is utilizing approved Annual Standards and Specifications (AS&S),
attach the completed AS&S Entity Form.
AS&S Entity Name (if different from the Operator identified in Section II. A.):
Rev01/2020 PAGE 2 16
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019
Section VI. Certification. A person representing the operator as identified in Section I. A. and meeting the requirements
of 9VAC25-880-70. Part III. K must physically sign this certification. A typed signature is not acceptable. Please note that
operator is defined in 9VAC25-870.10 as follows:
"Operator" means the owner or operator of any facility or activity subject to the Act and this chapter. In the context of stormwater
associated with a large or small construction activity, operator means any person associated with a construction project that meets
either of the following two criteria: (1) the person has direct operational control over construction plans and specifications, including
the ability to make modifications to those plans and specifications or (ii) the person has day -today operational control of those
activities at a project that are necessary to ensure compliance with a stormwater pollution prevention plan for the site or other state
permit or VSMP authority permit conditions (i.e., they are authorized to direct workers at a site to carry out activities required by the
stormwater pollution prevention plan or comply with other permit conditions). In the context of stormwater discharges from
Municipal Separate Storm Sewer Systems (MS4s), operator means the operator of the regulated M54 system.
9VAC25-880-70. Part III. K. Signatory Requirements. Registration Statement. All Registration Statements shall be signed as follows:
a. For a corporation: by a responsible corporate officer. For the purpose of this chapter, a responsible corporate officer
means: (i) a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or
any other person who performs similar policy -making or decision -making functions for the corporation; or (ii) the manager
of one or more manufacturing, production, or operating facilities, provided the manager is authorized to make management
decisions that govern the operation of the regulated facility including having the explicit or implicit duty of making major
capital investment recommendations, and initiating and directing other comprehensive measures to assure long-term
compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or
actions taken to gather complete and accurate information forstate permit application requirements; and where authority
to sign documents has been assigned or delegated to the manager in accordance with corporate procedures;
b. For a partnership or sole proprietorship: by a general partner or the proprietor, respectively, or
c. For a municipality, state, federal, or other public agency: by either a principal executive officer or ranking elected official.
For purposes of this chapter, a principal executive officer of a public agency includes: (i) the chief executive officer of the
agency or (li) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the
agency.
Certification: "I certify under penalty of law that I have read and understand this Registration Statement and that this
document and all attachments were prepared in accordance with a system designed to assure that qualified personnel
properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage
the system or those persons directly responsible for gathering the information, the information submitted is to the best
of my knowledge and belief true, accurate, and complete. I am aware that there are significant penalties for submitting
false information including the possibility pf fine and imprisonment for knowing- violations."
Printed Name:
Signature (signed in ink):
Date Signed:
Section VII. Submittal Instructions. Submit this form to the VSMP Authority. If the locality is the VSMP Authority,
please send your Registration Statement submittal directly to the locality; do NOT send this form to DEQ. A list of local
VSMP Authorities is available here: VSMP Authorities.
If DEC. is the VSMP Authority, please send to: If the locality is the VSMP Authority, please send to:
Department of Environmental Quality
Office of Stormwater Management Suite 1400
PO Box 1105
Richmond VA 23218
construction¢oOdea.vi r¢inia.¢ov
marle County Office of Community
McIntire Rd.
Charlottesville, VA 22902
(434)296-5832
Rev 01/2020 PAGE 3 16
APPX D- Delegation of Authority
Delegation of Authority
►, � ArytA[ t, !,KUWM (name), hereby designate the person or specifically described position
below to be a duly authorized representative for the purpose of overseeing compliance with environmental
requirements, including the Construction General Permit, at the 6fI cy, e hwl -se !7
construction site. The designee is authorized to sign any reports or other documents required by the permit.
Construction Activities Inspector (name of person or position)
Roudabush. Gale & Associates (company)
Nicole Jamison, Kent Rain or any other
Oualified Personnel from Roudabush
999 2nd St. SE (address)
Charlottesville. Va. 22902 (city, state, zip)
(434) 977-0205 (phone)
By signing this authorization, I confirm that I meet the requirements to make such a designation as set forth in
Virginia's General VPDES Permit for Discharges of Stormwater from Construction Activities (CGP), and that
the designee above meets the definition of a "duly authorized representative" as set forth in in the CGP.
I certify under penalty of law that I have read and understand this document and that this document and all
attachments were prepared in accordance with a system designed to assure that qualified personnel properly
gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage
the system, or those persons directly responsible for gathering the information, the information submitted is, to
the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant
penalties for submitting false information, including the possibility of fine and imprisonment for knowing
violations.
Name:
Company:
Title:
Signature:
Date:
28
APPX E- Inspection Reports and Precipitation Log
(Blank inspection report included below. Weekly inspection reports are found in different folder in SWPPP
box)
Stormwater Construction Site Inspection Report
General Information
Project Name
NPDES Tracking No.
Location
Date of Inspection
Start/End Time
Inspector's Name(s)
Inspector's Title(s)
Inspector's Contact Information
Inspector's Qualifications
Describe present phase of
construction
Type of Inspection:
❑ Regular ❑ Pre -storm event ❑ During storm event ❑ Post -storm event
Weather Information
Has there been a storm event since the last inspection? ❑Yes ❑No
If yes, provide:
Storm Start Date & Time: Storm Duration (hrs): Approximate Amount of Precipitation (in):
Weather at time of this inspection?
❑ Clear ❑Cloudy ❑ Rain ❑ Sleet ❑ Fog ❑ Snowing ❑ High Winds
❑ Other: Temperature:
Have any discharges occurred since the last inspection? ❑Yes ❑No
If yes, describe:
Are there any discharges at the time of inspection? ❑Yes ❑No
If yes, describe -
Site -specific BMPs
• Number the structural and non-structural BMPs identified in your SWPPP on your site map and list them below (add as
many BMPs as necessary). Carry a copy of the numbered site map with you during your inspections. This list will ensure
that you are inspecting all required BMPs at your site.
• Describe corrective actions initiated, date completed, and note the person that completed the work in the Corrective Action
Log.
BMP
BMP
Installed?
BMP
Maintenance
Required?
Corrective Action Needed and Notes
Date
Corrective
Action
Taken
1
❑Yes ❑No
❑Yes ❑No
2
❑Yes ❑No
❑Yes ❑No
3
❑Yes ❑No
❑Yes ❑No
4
❑Yes ❑No
❑Yes ❑No
5
❑Yes ❑No
❑Yes ❑No
29
BMP
BMP
Installed?
BMP
Maintenance
Required?
Corrective Action Needed and Notes
Date
Corrective
Action
Taken
6
❑Yes ❑No
❑Yes ❑No
7
❑Yes ❑No
❑Yes ❑No
8
❑Yes ❑No
❑Yes ❑No
9
❑Yes ❑No
❑Yes ❑No
10
❑Yes ❑No
❑Yes ❑No
II
❑Yes ❑No
❑Yes ❑No
12
❑Yes ❑No
❑Yes ❑No
13
❑Yes ❑No
❑Yes ❑No
14
❑Yes ❑No
❑Yes ❑No
15
❑Yes ❑No
❑Yes ❑No
16
❑Yes ❑No
❑Yes ❑No
17
❑Yes ❑No
❑Yes ❑No
18
❑Yes ❑No
❑Yes ❑No
19
❑Yes ❑No
❑Yes ❑No
20
❑Yes ❑No
❑Yes ❑No
Overall Site Issues
Below are some general site issues that should be assessed during inspections. Customize this list as neededfor conditions at your
site.
BMP/activity
Implemented?
Maintenance
Corrective Action Needed and Notes
Required?
1
Are all slopes and
❑Yes ❑No
❑Yes ❑No
disturbed areas not
actively being worked
properly stabilized?
2
Are natural resource
❑Yes ❑No
❑Yes ❑No
areas (e.g., streams,
wetlands, mature trees,
etc.) protected with
barriers or similar
BMWs?
3
Are perimeter controls
❑Yes ❑No
❑Yes ❑No
and sediment barriers
adequately installed
(keyed into substrate)
and maintained?
4
Are discharge points and
❑Yes ❑No
❑Yes ❑No
receiving waters free of
any sediment deposits?
5
Are storm drain inlets
❑Yes ❑No
❑Yes ❑No
properly protected?
6
Is the construction exit
❑Yes ❑No
❑Yes ❑No
preventing sediment
from being tracked into
the street?
7
Is trash/litter from work
❑Yes ❑No
❑Yes ❑No
areas collected and
placed in covered
dumpsters?
BMW/activity
Implemented?
Maintenance
Corrective Action Needed and Notes
Required?
8
Are washout facilities
❑Yes ❑No
❑Yes ❑No
(e.g., paint, stucco,
concrete) available,
clearly marked, and
maintained?
9
Are vehicle and
❑Yes ❑No
❑Yes ❑No
equipment fueling,
cleaning, and
maintenance areas free
of spills, leaks, or any
other deleterious
material?
10
Are materials that are
❑Yes ❑No
❑Yes ❑No
potential stormwater
contaminants stored
inside or under cover?
11
Are non-stormwater
❑Yes ❑No
❑Yes ❑No
discharges (e.g., wash
water, dewatering)
properly controlled?
12
(Other)
❑Yes ❑No
❑Yes ❑No
Non -Compliance
Describe any incidents of non-compliance not described above:
CERTIFICATION STATEMENT
"I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance
with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my
inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the
information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant
penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations."
Print name and title:
Signature: Date:
31
Rainfall Documentation:
Project: Belvedere Phase 5
Source: www.wunderground.com, Stations near Belvedere Subdivision
Date I Amount of Precipitation (in.)
32
APPX F- Grading and Stabilization Log
Grading and Stabilization Activities Log
Project Name: Belvedere Phase 5
SWPPP Contact:
Date
Grading
Activity
Initiated
Location
of Grading
Date Grading Activity
Ceased (Indicate
Temporary or
Permanent)
Date When
Stabilization
Measures are
Initiated
Description of
Stabilization
Measure and
Location
33
APPX G Log of Changes and Updates to SWPPP
SWPPP Amendment Log
Project Name: Belvedere Phase 5
SWPPP Contact:
Amendment
No.
Description of the Amendment
Date of
Amendment
Amendment
Prepared
by [Name(s)
and Title]
34
APPX H- Subcontractor and Contractor Certifications/Agreements
Subcontractor and Contractor Certifications/Agreements
SUB/CONTRACTOR CERTIFICATION
STORMWATER POLLUTION PREVENTION PLAN
Project Title:
Operator(s):
As a subcontractor, you are required to comply with the Stormwater Pollution Prevention Plan (SWPPP) for any
work that you perform on -site. Any person or group who violates any condition of the SWPPP may be subject
to substantial penalties or loss of contract. You are encouraged to advise each of your employees working on
this project of the requirements of the SWPPP. A copy of the SWPPP is available for your review at the
SWPPP mailbox.
Each subcontractor engaged in activities at the construction site that could impact stormwater must be identified
and sign the following certification statement:
I certify under the penalty of law that I have read and understand the terms and conditions of the
SWPPP for the above designated project and agree to follow the BMPs and practices described in the
SWPPP.
This certification is hereby signed in reference to the above named project:
Company:
Address:
Telephone Number:
Type of construction service to be provided:
Signature:
Title:
Date:
35
APPX I- Factsheets, Additional Information, and Spill Reports
9M