HomeMy WebLinkAboutWPO202200030 VSMP - SWPPP 2022-04-29oe Al COUNTY OF ALBEMARLE
r9� Department of Community Development
a 401 McIntire Road, North Wing
c Charlottesville, Virginia 22902-4596
tuna Tel. (434) 296-5832 • Fax (434) 972-4126
Stormwater Pollution Prevention Plan (SWPPP)
Ref: WP0202200030
For Construction Activities At:
Project Name: S.L. WILLIAMSON ASPHALT PLANT AT RED HILL QUARRY
Address: 2691 Red Hill Road, Charlottesville, VA 22903
Prepared by:
Name: Roudabush. Gale & Associates Inc.. Nicole Jamison
Prepared for:
Name: S.L. Williamson Company Inc.. Blair Williamson
SWPPP Preparation Date: April 29, 2022
(This document is to be made publicly available according to 9VAC25-880-70, Part II, section D)
APPROVED
by the Albemarle County
Community Development Department
Date 07/27/2022
lmnwn
•• 1 111 1
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
CONTENTS: (from Albemarle County Code Sec. 17-405)
1. Registration statement
2. Notice of general permit coverage
3. Nature of activity
4. Erosion and Sediment Control Plan.
5. Stormwater Management Plan
6. Pollution Prevention Plan.
7. Discharges to impaired waters, surface waters within an applicable TMDL
wasteload allocation, and exceptional waters.
8. Qualified personnel
9. Signed Certification
10. Delegation of authority.
11. General permit copy
12. Inspection logs
13. Additional Information and Logs
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 1. Registration statement
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY
GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM
CONSTRUCTION ACTIVITIES (VAR10)
REGISTRATION STATEMENT 2019
Application type. M 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: IIB ❑ 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 V. (per Part III. K. of the VAR10 Permit).
Operator Name:
S.L. Williamson Company. Inc.
Contact person:
Blair Williamson
Address:
12.30 River Road
City, State and Zip Code:
Charlottesville VA 22901
Phone Number:
4:14-295-6137
Primary and CC Email:
blair slwilliamson.co cc: 'ta art roudabush.com 'am'son r udabush.com
B. Electronic correspondence. To receive an emailed coverage letter or to pay by credit card, you must choose YES
and include a valid email. May we transmit correspondence electronically? YES ❑x NO ❑
Section II. Construction Activity 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 waterbodies receiving stormwater discharges from the site.
B.
Project site location information.
Construction Activity Name:
S.L. Williamson Asphalt
Address:
2691 Red Hill Road
City and/or County and Zip Code:
Charlottesville VA 22903
Construction Activity Entrance Location
(description, street address and/or
39.959904,-78.606634
latitude/longitude in decimal degrees):
Latitude and Longitude
39.959904,-78,606634
(6-digit, decimal degrees format):
C.
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 (include entire area to be
disturbed as approved in the Stormwater Management Plan):
4.4 acres
Primary estimated area to be disturbed (include portions with
Erosion and Sediment Control Plan approval only):
2.4 acres
Off -site estimated area to be disturbed (if applicable):
D.
Property Owner Status:
FEDERAL ❑ STATE ❑ PUBLIC ❑ PRIVATE
E.
Nature of the Construction Activity Description (i.e. commercial,
industrial, residential, agricultural, environmental, utility):
Industrial
F.
Municipal Separate Storm Sewer System (MS4) name(s) (if the
site is discharging to a MS4):
G.
Estimated Project Dates (MM/DD/YYYY).
Start Date:
5/30/2022
Completion Date:
5 31 2024
H.
Is this construction activity part of a larger common plan of
YES ❑ NO IT
development or sale?
Rev 11/2020 PAGE 1 1 6
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019
I. 611 Order Hydrologic Unit Code (HUC) and Receiving Water Name(s). Include additional areas on a separate page.
HUC
NAME(S) OF RECEIVING WATERBODY
1M46 020802031201)
North Fork Hardware River
Section III. Off -site Support Activity Location Information.
List all off -site support activities and excavated material disposal areas being utilized for this project. Include additional
areas on a separate page.
Off -site Activity Name:
Address:
City or County:
Off -site Activity Entrance Location (description, street
address and/or latitude/longitude in decimal degrees):
Latitude and Longitude (6-digit, decimal degrees format):
Is this off -site activity an excavated material disposal
area?
YES ❑ NO ❑
If this off -site activity is an excavated material disposal
area, list the contents of the excavated fill material:
Will a separate VPDES permit cover this off -site activity?
I YES ❑ NO ❑
Section IV. 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 prior 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 x❑ NO ❑
Erosion and Sediment Control Plan Approval Date (for
the estimated area to be disturbed MM/DD/YYYY):
C.
Has land -disturbance commenced?
YES ❑ NO 159
D.
Annual Standards and Specifications. If this project is utilizing approved Annual Standards and Specifications
(AS&S), attached the completed AS&S Entity Form.
AS&S Entity Name (if different from the Operator
identified in Section I):
E.
Billing information (leave blank if same as the Operator identified in Section I. above). This entity will receive
Annual Permit Maintenance and Permit Modification Fee invoices (if applicable).
Billing Name:
Contact Name:
Address:
City, State and Zip Code:
Phone Number:
Primary and CC Email:
Rev 11/2020 PAGE 2 16
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019
Section V. 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: (i) 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-to-day operational control of those
activities at a project that are necessary to ensure compliance with a storm water 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
storm water pollution prevention plan or comply with other permit conditions). In the context of storm water discharges from
Municipal Separate Storm SewerSystems (MS4s), operator means the operator of the regulated MS4 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 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 responsibilityfor 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 of fine and imprisonment for knowing violations."
Printed Name: D�i111 -W 1 k1'%Orn an
Signature (signed in ink):
Date Signed:
-20
Section VI. 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 DEQ 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
constructiongp@dep.virginia.gov
Albemarle County
Department of Community Development
401 McIntire Rd. Charlottesville, VA 22902
434-296-5832
Rev 11/2020 PAGE 3 16
Section 2. Notice of general permit coverage
This notice is to be posted near the main entrance according to 9VAC25-880-70, Part II, sectionC.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 3. Nature of activity
GENERAL SITE INFORMATION:
The purpose of the land -disturbing activity is to remove the existing asphalt plant and the installation of a new asphalt plant.
The total permitted site is 4.4 acres (extent of site development plan application) and the estimated area to be disturbed is 2.4
acres. The site consists of a working asphalt plant that operates in a leased area within the parcel (TMP 88-18) for the Red Hill
Quarry. The existing lease area is a gravel covered area with the existing stockpiles of aggregate that is used in the
manufacture of asphalt mix. Adjacent areas include an existing creek to the west that is associated with a 100" stream buffer
and floodplain that is located within the development area. Further to the west is a vacant parcel owned by Martin Marietta,
the owners of The Quarry. The vacant parcel is currently covered by trees. To the north of the lease area is vacant land located
on the Quarry Parcel which has not been disturbed by quarry operations as of this date. To the ease of the lease area is the
active quarry operations that supply aggregate to the asphalt plant. To the south of the lease area is Route 708, Red Hill Road.
Offsite areas include some grading and construction activities that will be taking place outside the eastern boundary of the
lease area. These activities should be coordinated with the quany operations.
SEQUENCE OF MAJOR ACTIVITIES:
PHASE 1
1. After obtaining all required permits, the contractor shall coordinate a pre -construction meeting, allowing 72 hours for
it coordination.
2. Contractor to install construction entrance and tree protection as first step in construction.
3. Clearing and grubbing shall first be limited to area necessary to install perimeter control devices.
4. Install additional environmental controls, such as silt fence, super silt fence, diversion dikes and sediment traps.
5. Begin removal of existing asphalt plant.
6. After removal of exiting plant, grading activities can start to construct the retaining walls around the feed bins.
PHASE 2
1. Begin excavation, grading and installation activities for retaining walls
2. Begin new asphalt plant installation.
3. Convert temporary sediment trap to settling basin and install new settling basin.
4. Fine grade site to proposed grades.
5. Pave proposed asphalt areas.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 4. Erosion and Sediment Control Plan.
(Provide a reduced, 11x17 copy of the latest Erosion and Sediment Control Plan. Do not reference only.)
Approved erosion and sediment control plans for S.L. Williamson Asphalt Plant at Red Hill Quarry are incorporated by
reference as part of this Stormwater Pollution Prevention Plan. Approved plans are included in this SWPPP binder.
1. The purpose of the erosion control measures shown on these plans shall be to preclude the transport of all waterbome
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.
2. All erosion and sediment control measures shall be installed and maintained in accordance with the Virginia Erosion
and sediment Control Handbook (31 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.
3. All points of construction ingress and egress shall be protected by a construction entrance to prevent tracking of mud
onto public right-of-way. An entrance permit from VDOT is required prior to any construction activities within state
rights -of -way. Where sediment is transported onto a public road surface, the road shall be thoroughly cleaned 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.
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. Sediment traps and sediment basin shall be designed and constructed based upon the total drainage area to be served
by the trap or basin.
a. 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 (see sizing table for dimensions).
b. 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 twenty -five-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. 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.
8. 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.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
9. Sediment control measures may require minor field adjustments at time of construction to ensure their intended
purpose is accomplished. Division of code compliance approval will be required for other deviations from the
approved plans.
10. Concentrated runoff shall not flow down cut or fill slopes unless contained within an adequate temporary or
permanent channel, flume or slope drain structure.
11. 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. During construction, 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.
12. 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.
13. 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 erosion or sediment to exit.
14. 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.
15. 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. Irrigation shall be required as
necessary to ensure establishment of grass cover.
16. Underground utility lines (water, sewer, power, cable, or gas) 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.
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 back filling trenches shall be properly compacted in order to minimize erosion and promote
stabilization.
e. Re -stabilization shall be accomplished in accordance with these regulations.
f. Applicable safety regulations shall be complied with.
17. Cut and fill slopes shall be designed and constructed in a manner that will minimize erosion. Slopes that re found to
be eroding excessively within one year of permanent stabilization shall be provided with additional slope stabilizing
measures until the problem is resolved.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
18. All storm sewer inlets that are made 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.
19. Before newly constructed stone water 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.
20. 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.
Structural and Vegetative Practices:
The following erosion and sediment control structural and vegetative practices will be incorporated on the project site:
1. Safety Fence (3.01) - A temporary safety fence shall be erected to prohibit public access to the project area and around
sensitive areas to protect them from construction traffic.
2. Temporary Construction Entrance (3.02)- A temporary construction entrance shall be installed at the site entrance as
shown on the erosion and sediment control plan.
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 shown 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 as shown
on the erosion and sediment control plan.
6. Inlet Protection (3.07) — Inlet protection will be installed at all proposed storm drain inlets installed prior to final
stabilization of the site.
7. Culvert Inlet Protection (3.08) — Sediment filter installed to prevent sediment from entering, accumulation in or being
transferred by a culvert.
8. Temporary Diversion Dike (3.09) — A system of diversion dikes to direct flow into the sediment trap will be installed
as shown on the erosion and sediment control plans.
9. Clean- Water Diversion Dikes — A system of diversion dikes to direct the flow of clean offsite water away from the
site will be installed as shown on the erosion and sediment control plan.
10. Temporary Sediment Trap (3.13) — A temporary sediment trap is to be constructed in conjunction with culvert inlet
protection. Calculations for the sediment trap are shown with the erosion and sediment control details.
11. Temporary Sediment Basin (3.14) — A temporary sediment basin is to be constructed as shown on the erosion and
sediment control plan. Calculations for the sediment basin are shown with the erosion and sediment control detail for
the sediment basin.
12. Stormwater Conveyance channel (3.17) — A series of channels shall be constructed to provide for the conveyance of
concentrated runoff to a receiving channel without damage from erosion. Typical ditch sections and calculations area
shown on the plan.
13. Outlet Protection (3.18) — Outlet protection will be installed at the end of all storm sewer pipes. Calculations for the
outlet protection are shown with the erosion and sediment control details. The riprap should be checked periodically
to ensure scouring is not occurring beneath fabric underlining of the riprap layer.
14. Check Dam (3.20) — Rock check dams will be installed in the proposed ditches to reduce the velocity of concentrated
flows which will help in the establishment of the grass lining. After the upslope area is stabilized, the check dams
may be removed and properly disposed in accordance with VECSH Regulations.
15. Level Spreader (3.21) — Level spreader will be installed at the end of diversions or dikes to convert channelized flow
to sheet flow to avoid causing erosion.
16. Turbidity Curtain (3.27) — A floating geotextile material which minimizes sediment transport from a disturbed area
adjacent to or within a body of water.
17. 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 volumes
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
18. 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.
19. 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.
20. Permanent Seeding (3.32) — Areas brought to final grade or those construction areas that will remain dormant for a
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.
21. 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.
22. Erosion Control Blankets (3.36) — Erosion control blankets in conjunction with permanent seeding will be installed on
all slope's 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.
23. Tree Protection (3.38) — The tree fence barrier will be installed to protect the trees outside of the limits of disturbance
as shown on the erosion and sediment control plan.
24. 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.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
I►/
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SITE DATA U
THESE PLANS WERE DESIGNED IN ACCORDANCE WITH SITE �> O PLANS SDP202200029
OWNER: MARTIN MARIETTA MATERIALS, INC EROSION CONTROL & N
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P.O. BOX 80Q Z z o N
FORT WAYNE IN, 46898 u1 � � � g a � �
ASPHALT PLANT OPERATOR: S.L. WILLIAMSON COMPANY, INC APPROVED '0'w z > �
1230 RIVER RD by the Albemarle County a O = w a
CHARLOTTESVILLE, VA 22901 STORMWATER MANAGMENT PLAN Community Development DepartmentIr
0 FD
Date 07/27/2022 +Q O
PLAN PREPARER: ROUDABUSH, GALE, do ASSOCIATES File WP0202200030 W Q
999 SECOND ST. SE. SUITE 201 Q z �
CHARLDTTESVILLE, VA.22902 S.L. WILLIAMSON ASPHALT PLANT SHEET INDEX oIr
(434)-977-0205 SHEET 1---------- COVER SHEET x LL Z
TAX MAP PARCEL No: 08800-00-00-01800 Cn 0 > N CP
RED HILL QUARRY SHEET 2---------- OVERALL EXTENTS OF TMP 88-18 a w
PARCEL AREA 579.13 ACRES N z
SHEET 3---------- EXISTING CONDITIONS ¢ J O
APPLICATION AREA: 3.13 ACRES (EXTENT OF SITE DEVELOPMENT PLAN APPLICATION (SDP) WILL ao U) Lq
FOLLOW LIMITS OF THE THE EXISTING S.L WILLIAMSON LEASE AREA ON W THE P�, = o
TMP 66-18, SAMUEL MILLER MAGISTERIAL DISTRICT SHEET 4 ---------- EXISTING CONDITIONS a0H
ZONING: RURAL (RA) SHEET 5---------- EROSION CONTROL PLAN - PHASE 1
o¢
FLOOD HAZARD OVERLAY ACTT COUNTY OF ALBEMARLE VA ��
NATURAL RESOURCE EXTRACTION OVERLAY (NR) SHEET 6---------- EROSION CONTROL PLAN -PHASE 2
STEEP SLOPES OVERLAY
SHEET 7---------- GRADING DETAIL 1
PREVIOUS APPLICATIONS: FD 2020000 FLOOD
USE PERMIT -WITHDRAWN WPO�2022iiiiiiiiiiiiiiii30
FDP202000005 FLOOD DEVELOPMENT PERMIT -APPROVED 7/20/2021 SHEET 8----------GRADING DETAIL 2
SP201900009 SPECIAL USER PERMIT - APPROVED 1/19/2022
SE202100036 CRITICAL SLOPE WAIVER - APPROVED 1/19/2022 SHEET 9---------- GRADING DETAIL 3
SE202100037 BUILDING SITE RATIO WAIVER - APPROVED 1/19/2022 z
EXISTING USE WITHIN SDP AREA' ASPHALT PLANT SHEET 10-------- GRADING DETAIL 4
PROPOSED USE WITHIN SDP AREA: ASPHALT PLANT (SPECIAL USE PERMIT SP201900009) p� o �� J° SHEET 11-------- SETTLING BASIN PROFILES o
o 6
MAXIMUM BUILDING HEIGHT. 75' o o r�° o°a SHEET 12--------- EROSION CONTROL NARRATIVE
SETBACKS: 100' FROM PUBUC RIGHT-OF-WAY OR ANY ADJOINING RESIDENTIAL DISTRICT 0 SHEET 13-------- EROSION CONTROL NOTES & DETAILS
200' FROM ANY CONTIGUOUS PROPERTY WITH RESIDENTIAL LOTS LESS THAN coo
OR EQUAL TO 1 ACRE OR OCCUPIED DWELLING SHEET 14-------- OVERALL DRAINAGE AREA TO EXISTING CULVERTS & SWM o
MAXIMUM LOT COVERAGE: SOX OF TOTAL SITE (3.52 ACRES)
SHEET 15--------- STREAM BUFFER MITIGATION PLAN O z
ACTUAL LOT COVERAGE: PARKING 1,515ro
TRAVEL WAYS 11717,003 SF (2.69 ACRES) SF (0.04 ACRES) SHEET 16--------- STREAM BUFFER MITIGATION PLAN, NOTES & DETAILS
fl- p w5w
ASPHALT PLANT 8.796 SF (0.20 ACRES) a
TOTAL AREA 127,314 SF (2.92 ACRES) EROSION CONTROL NOTES LD w
MAGISTERIAL DISTRICT' SAMUEL MILLER a 2
1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION u H
STORMWATER MANAGEMENT. THE DEVELOPMENT OF S.L. WIWAMSON ASPHALT PLANT, WILL OCCUR IN O° CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK w
TWO PHASES OR SEPARATE STAGES OF CONSTRUCTION. THE COMPLETED PRIOR TO THE FINAL INSPECTION. Z
PROJECT WILL UTILIZE NON -CONCENTRATED DISCHARGE TO FACIUTATE 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO o
CHANNEL AND FLOOD PROTECTION. STORMWATER RUNOFF WILL BE Bj a/e �L MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK
COLLECTED AND CONVEYED VIA SHEETFLOW. WATER QUALITY PROVISIONS a/Ic O� AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS.
ARE PROPOSED VIA REDUCING THE IMPERVIOUS AREA Rte 29 h 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN ry
TMP 88-18 4. CLEARING. o
\O� A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE o
REGARDING WATER QUALITY ANALYSIS: 0
�lr �a AT ALL TIMES.
9VAC25-870-63, WATER QUALITY DESIGN CRITERIA REQUIREMENTS. �� �o Q 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS
THE WATER QUALITY PORTIONS OF THIS PLAN WILL BE SATISFIED BY (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT L50
0
REDUCING THE IMPERVIOUS AREA. A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN
Project APPROVING AUTHORITY.
REGARDING WATER QUANTITY ANALYSIS: 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES DESIGNED BY: AG
COMPLIANCE OF 9VAC25-870-66-B (CHANNEL PROTECTION): Area NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING DRAWN BY: AG
IN ACCORDANCE WITH CHANNEL PROTECTION SECTION B.) OF AUTHORITY.
`SO c Oa 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING CHECKED BY: TO
9VAC NEED T LE OF VIRGINIA LAW; NO CONCENTRATED FLOWS ARE Uf O LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED.
DESIGNED TO LEAVE THE SITE THEREFORE 870-66-B IS NOT APPLICABLE erp • C
nch°� B. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. PyTH OF
9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH D
COMPLIANCE OF 9VAC25-870-66.0 FLOOD PROTECTION): ro r
IN REFERENCE TO FLOOD PROTECTION SECTION C.11), NO CONCENTRATED Od Q�� 1� RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS CLEANUP TO MAINTAIN THE o �c
p O Z EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY.
FLOWS ARE DESIGNED TO LEAVE THE SITE THEREFORE 870-66-C IS NOT O10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 0 9
APPLICABLE t���' S Nor �<e 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.
COMPLIANCE OF 9VAC25-870-66.D SHEET FLOWS OGrp �fI �j� Jimmy L. Taggart
( )• � /p !y � �O 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE
IN REFERENCE TO INCREASED VOLUMES OF SHEET FLOWS, SECTION D. �o� �� Or Ord SECTION 5.1.28. A L22 41 Q
THIS SITE IS BORDERED BY, AND DISCHARGES TO, A MAPPED FLOOD PLAIN. Q ,Q • 2262 ww
Stone Crest 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF THE CODE OF °F 6/20/2022 G1�
LANDCOVER AND USE FROM THIS PROJECT WILL BE FUNDAMENTALLY Lane �GPr ALBEMARLE. Esstarat 8�
IDENTICAL TO THE CURRENT USE AND LANDCOVER THEREFORE AS RUNOFF = C� 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO
IS RELATIVELY UNCHANGED, IMPUCATIONS TO DOWN STREAM CHANNELS AND F- (1p° THE HOURS OF 7:OOAM TO 9:OOPM.
AREA FLOOD PLAINS ARE EXPECTED TO BE UNCHANGED AS WELL. Q:� ` 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAN MAINTAINS LATERAL
0 < SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND z Q
WATERSHED: NORTH FORK HARDWARE RIVER Z �� IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE 0 SLIDES, SINKING, OR COLLAPSE. Q Z
r 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT J
STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY
TOPOGRAPHY. AERIAL TOPOGRAPHY FROM KUCERRA INTERNATIONAL DECEMBER, 2017 >
,,cc�� THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. �
C� ,P° 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 z IIIDATUM: HORIZONTAL NAD 83 Z O\ O LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL W H _J
RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY W Z <M
BENCHMARK: AERIAL TARGET O 607.38 (SEE SHEET 2 FOR LOCATION) �% THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF.
0(2 ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 0 J m
d 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. z 0- Q
CRITICAL SLOPES: MANMADE CRITICAL SLOPES ARE LOCATED WITHIN THE SDP AREA. A CRITICAL SLOPES AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS/1000SF, INCORPORATED INTO THE TOP 4-6
WAIVER HAS BEEN APPROVED WITH SP201900009 VICINITY MAP INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000LBS/ACRE AND CONSIST OF A 10-20-10 2 J fr co O
FLOODPLAIN: SDP AREA IS LOCATED IN ZONE X PER LOMR 20-03-1246P APPROVED ON n� NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED R ENTUC/ACRE AND CONSIST OF 95%MULCH
KENTUCKY = Q J Z
31 OR TALL FESCUE AND 0-5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE �
07 13 2020, WA1LE: 1 =2WO FEET APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL LU = < U Z W
/ / INSPECTOR. O W
FLOODPLAIN DEVELOPMENT PERMIT (FDP202000005) WAS APPROVED 07/20/21. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR >Q Q O x
PROJECT SITE IS NOT LOCATED WITHIN THE WATERSHED OF A PUBLIC WATER SUPPLY RESEVOIR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED > Q J d
PARKING REQUIRED: ONE (1) SPACE PER EMPLOYEE WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE Z J 00 U
3-4 EMPLOYEES = 4 SPACES REQUIRED NO EVIDENCE OF A BURIAL SITE WAS FOUND WITHIN THE SDP/PROJECT AREA. RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES Cr O = 00 I W
WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED IMMEDIATELY. cn
THE STREAM BUFFER SHOWN HEREON IS BASED UPON THE APPROXIMATE LOCATION OF THE CENTERLINE OF THE EXISTING 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF O 0 � 0
PARKING PROVIDED: 4 SPACES PROVIDED
CREEK LOCATED VIA A HANDHELD GPS DEVICE. THE STREAM BUFFER SHALL BE MANAGED IN ACCORDANCE WITH THE FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE (7 � LU X J
ALBEMARLE COUNTY WATER PROTECTION ORDINANCE. COUNTY EROSION CONTROL INSPECTOR. 06 Q Q
LANDSCAPING: SCREENING TO BE PROVIDED BY EXISTING TREES ALONG THE WESTERN PROPERTY LINE 21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WITHIN 1 YEAR OF THE DATE OF J J H If
w
OF TMP 88-18. THE STRIP OF EXISTING TREES VARIES FROM 20'-40' IN WIDTH TO A PREUMINARY JURISDICTIONAL DETERMINATION FOR THE CREEK HAS BEEN OBTAINED FROM THE CORPS OF ENGINEERS APPROVAL. (WATER PROTECTION ORDINANCE SECTION 17-204G). O J C, _f)
THE WESTERN PROPERTY UNE IN THE VICINITY OF THE ASPHALT PLANT. DATED MAY 9, 2019. NAO-2019-00515. THE PRELIMINARY JURISDICTIONAL DETERMINATION IS BASED UPON THE GPS 22. PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE (9) MONTHS AFTER > Q
LIGHTING: AT THIS TIME, NO SITE LIGHTING IS PROPOSED WITH THE SITE PLAN. IF SITE LIGHTING IS LOCATION OF THE CREEK. THE DATE THE LAND DISTURBING ACTIVITY COMMENCED. (WATER PROTECTION ORDINANCE SECTION z > <
17-207B).
PROPOSED AT A LATER DATE, THE LIGHTING WILL COMPLY WITH Z.O. CHAPTER 18-4.17, If
TMP 88-18 IS NOT LOCATED WITHIN THE AGRICULTURAL -FORESTAL DISTRICT. 23. THESE PLANS DO NOT GUARANTEE THE EXISTENCE, NON-EXISTENCE OR LOCATION OF UTILITIES. O J w
OUTDOOR LIGHTING. CONTRACTOR SHALL VERIFY THE EXISTENCE AND LOCATION OR THE NON-EXISTENCE OF UTILITIES. AT LEAST _J
TMP 88-18 IS NOT LOCATED WITHIN THE WATERSHED OF A PUBLIC WATER SUPPLY RESERVOIR. 48 HOURS PRIOR TO ANY EXCAVATION OR CONSTRUCTION, CONTRACTOR SHALL NOTIFY MISS UTILITY z
SEWER FACILITIES: THIS SITE IS CURRENTLY SERVED WITH A PUMP AND HAUL SYSTEM. THE EXISTING (1-800-552-7001) AND/OR THE RESPECTIVE UTILITY COMPANIES FOR GAS, WATER, SEWER, POWER, O J
SEPTIC TANK WILL BE REMOVED AND REPLACED AS PART OF THIS PROJECT. THE PHONE AND CABLE. CONTRACTOR SHALL TIMELY ARRANGE TO HAVE THE VARIOUS UTILITIES LOCATED, AND U) w
NEW SYSTEM WILL ALSO BE A PUMP AND HAUL SYSTEM. TO HAVE THEM REMOVED OR RELOCATED, OR TO DETERMINE THE METHOD OF PROTECTION ACCEPTABLE TO O
THE RESPECTIVE OWNER, IF THE METHOD OF PROTECTION IS NOT OTHERWISE SPECIFIED. CONTRACTOR C Q
CLOSEST WATER SOURCE IS A DRY HYDRANT LOCATED ON TMP 08800-00-00-006A1, NEAR THE SHALL CONDUCT ITS WORK IN THE VICINITY OF EXISTING UTILITIES IN ACCORDANCE WITH THE RESPECTIVE LU
INTERSECTION OF RT. 29 AND RED HILL SCHOOL ROAD. APPROVALS UTILITY'S RULES AND REGULATIONS. ANY COST INCURRED FOR REMOVING, RELOCATING OR PROTECTING
UTILITIES SHALL BE BORNE BY CONTRACTOR UNLESS INDICATED OTHERWISE. CONTRACTOR SHALL EXCAVATE
TO LOCATE BURIED UTILITIES FAR ENOUGH IN ADVANCE OF ITS WORK TO ALLOW FOR HORIZONTAL AND DATE: 03-07-2021
EXISTING IMPERVIOUS AREA W/IN LEASE AREA = 128,196 SF (2.94 AC) DEPARTMENT OF COMMUNITY DEVELOPMENT DATE /OR VERTICAL ADJUSTMENTS TO ITS WORK AND/OR THE UTILITIES. NO ADJUSTMENT IN COMPENSATION OR
SCHEDULE WILL BE ALLOWED FOR DELAYS RESULTING FROM CONTRACTOR'S FAILURE TO CONTACT AND SCALE: AS SHOWN
PROPOSED IMPERVIOUS AREA W/IN LEASE AREA PLANNING / ZONING COORDINATE WITH UTILITIES. JOB: 19.0032 127,314 (2.92 AC) FILE: 8719
ENGINEERING
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LEGEND
=SEDPdENT TRAP DESIGN 00 3ep
Soo \ I CRITICAL SLOPES (OVER 25%)*
\/00 3N° of
Area= __W A 'RAGE ♦\� 1 Soo\\ \\ r - mi WPO STREAM BUFFER
i'Q'D= 9406.8 C.F. or 348 C.Y. \
` L �
v ► EXISTING TRAVEL WAYS
WET VOLUTE REQ'D= 4703.4 C.F. or 174 C.Y. p \ 1 - o
Trial Surface Area i'i i- S.F.
Target Side Slope o TO 1 µp / `\ \ \ `\ j
' 100-YEAR FLOODPLAIN
\ v ` '-, I ' 1 - s Wet Area epth o
FT. \ '` ` \ ` I ' ' /' ! \ I // \\, (F # 0405D)
Yields Wet Bottom Area of 1406.00 S.F. •i,' S / ' \-- ` \ 1 I / r r ,/'
With Volumeo 5109.0 C.F. or 189 C.Y. \
\ (FIRM PANEL 51003C
DRYSTORAGE/ tI - -
DRYLOLL Q �` / /// / \ \`\ \ /\ _`� •..\ \I I/ / i i i �ii`i-U'-`<�i // \\`\_� \�__ \` _�,.� �.4\\ ( )
� _ _ \\ t _ 00 Y AR FLOODPLAIN
VOLUME RE 'D= 4703.4 C.F. m 174 C.Y. - �_
_ l \ \ \
Trial Area 2000 S.F. ( I M/ LOMR 20-03-1246P
_
Target Side Slope o TO x v / _i / j /, _ \ 1 /�' i'\\, �\ /'\�/M/,\'\
Dry Depth o FT. i ,'/) ,/^- _ �� \�, I/ VA�V �/ /' �' "�� $/�/fi �� ���------
Yields IkyBpttpm Area pf 2904.00 S.F._\� r\--- - /�/ �_, • • EXTENT OF PROPOSED SDP
With Volume o 4904.0 C.F. m 181 C.1
Tar get Bottom Length ofTmpt�FT. �. \ �, -
OTE:EXISTING SETTLING BASINS TO BE RELOCATED / P f LIMITS OF CLEARING AND GRADING
�� n �� / x/99 -- TMP 88-13 ►
Trap Vo. 1 PLAN' ' s ` - - - - ,''_ -_ _ / / . ���, , MARTIN-MARIETTA
DiainageAiea= 2.60 r - R j� NOTE: CORP CONSTRUCTION '
Length- 16 FT. _ ' 2 \�\�
Bottom ofEacay. Wet Area= 90 a 16 or 1406.00 S.F.@Elev. 577.0 OK AND RECONSTRUCTED PER THE CURRENTLY EXISTING----,`� J >--\--___ TO INSTALDIVERSION zoNlNc.• RA '' CE CONSTRUCTION ENTRANCE
Depth of Wet Storage= 3 FT. USE: VACANT v
Wet Cleanout Elev= 578.5 DIMENSIONS AT THE NOTED LOCATIONS. CO,NTHACTOR -'; ,\y '- DIKE DIRECTING RUNOFF
Bottom of Well- 96 a 22 or 2075.73 S.F. @ Elev. 580.0 OK / � ,' � � �'' \ I
TO PROTECT STREAM FROM ANY POLLUT�,NTS /�` ,-' - TO SEDIMEN� TRAP AS /-' I ST SEDIMENT TRAP
Depth of Dip Storage= 2 FT. / / /�
Top of Berm= 104 a 30 or 3080.71 S.F. t@Elev. 583.0 OK / '( SOON A�7 ON ITE
r CURRENTLY WITHIN SETTLING BASINS /PUMP & HAUL.V� $ --
H= 3 FF. j
w- BE.,REQUIRED TO INSTALL SED)MENT TRAP ,/' x(�`_ ( / d s`_2; j ` / _ DD
GRADING ALL WS / DIVERSION DIKE
AA
y - , _ DUST CONTROL
j10- - l STREW BUFFER
0'
SILT FENCE
TMP 88-138 PAVED WASH RACK
m
MARTIN MARIETTA SCALE 1 "=30'
I s o ,_._1 r MATERIALS INC 30 0 30 so
ZONING: RA
own ,nummo \ USE. VACANT SCALE IN FEET
Mw
nownslow
t / / ^ / •_' / ` / Ir
Ii�i r h r r^ o<' ,r\/ ��Il• ' `'� ter_ , -.= r _ \\ 1 _.
�, / ^<o/_-574^ 2,�\ i t 1 \ /'/' `=ice_ - ' ..�'� t , --`i I I�^' , I \�� ,y ��( .-...-..._...-��`-t...- C��
/ / /-� r --_7 _ r - Sj ( _ �I �. - \ _ ..
5 s__ y i.. I _' i `', Yi. �. _ 58° tJ r \FF / -
`..\68 572--r '--580 _ \ - '/ ------ - ,' ` / _ \ -578 �).'`r e
-- `i i / - �� - 5,54 i -
/ .i - 7l
/ � _...�...-�.-... I...,-,..��,�-❑-...-..-.-...- -.. - -i•-...-...-...-...-...�:-.. -...-. .-574'-� - -'-- C_ `- y��8�
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-- ,
\ \ %5- - - - .580- Y ' N �I ; ♦' - / ' S84--- >, r ' -
578 \ --_-5-
-- 5
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N �► �� \ �LAIt�.
10o YR. FLOOD�IATN Q 0-03-1246P) _ l
r, �8 s� 8q r DD �^f9
58
\ /L r, �8 577 5g1 _
v
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SF DD 5S 90' SEE NOTE 5
DD
i' � 50' STREAM
„ 1\l,___
S80 - " ' _ B6 - 8g 590
EX. PAVED SEDIMENT TRAP #1
DC 583 � 5 -,
ASPHALT.'.
/ N - g2.
ENTRANCEU To BOTTOM OF WEIR 0
BOTTOM ELEVATION 577.01 / _
REMA/N UNTIL f
NEW PLANT/ - 580. r
CONSTRUCT ON Is �� TOP OF BERM - 583.0 - `,
-
/ COMPLETE
® - - ----- - /-ye° -
1 - 100' STREAM BUFFER588,
\ DC
s84 EX. SL / / ro _ ,' �/
' '
WILL/AMSON h CWD (\ - /w
y'
ASPHALT g4-
j<"..,,<r„-556 \� PLANT ' -\% I/'r JJIJ rl /-.,- S 'S96 •$g8 6 _ --'S9 - ` �
L - LOCATION sot ` _ / is _ - - _ 5`g2 /' r r
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"586 -�r� __'`` ^-�, r r�_-. "t, �r�../J L ``- 1 /\ /'l // -61 mo o4 602�600� -�S9g 596 �'4
, ----- --- I J
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_ � oo'95 --_-_
-\ \ r'J 1 \ '^ a' 2 im / 612
CWD 66 / p2 \
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59° .'- /- 92 / 0 _ ' - 4606 608. 610 6 614 - _ cr\�r,� /- •c - ;
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- CWD -
1 CRITICAL SLOPES AREA CREATED � `-
THROUGH OVERBURDEN PLACEMENT 670.
95
_ II 590t ,. I I D r i , /- _
A TO CWD i -
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60 �.-�i'-i'.` 159d,° 60a 61° , /"� ( r ��/ \ 6 - ` ( //'..- ' `---' J_'' j ✓- �i" ' i;� /
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/ ' 6 __ _ - \ STEEP SLOPES AREA CREATED _
/ l} ` r 6p2- 602 `/^\\ ^. % - / ,, ,` i N / J THROUGH OVERBURDEN PLACEMENT
596` \I LLB }tit (`�.. 'T " � - _� .6O _`-� "Y"'^ -�' �\ -��- - iJ �'t' '�i/ / � i ; � ✓ N S / / � -
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l /l r i �/ r' r i .7 t r_\ \ \ �`�\ \\i` o \^ .606---__ �\ _ - ,✓, ' / '�� 1 \� -� /� r' / `� / /} I r� I� f f ' \_-''�%/'' j/� - 7� _..�'= 640 _ �i".` -
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Lic. No.
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6/20/2022
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DESIGNED BY:
AG
DRAWN BY:
AG
'CHECKED BY:
TD
DATE:
03-07-2021
SCALE:
1 - 30'
JOB:
19.0032
FILE.
8719
SHEET:
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LEGEND
STEEP S 0 AjES SHOWN HERE I THE S.L. m
/�� Ode WILLI N 6,ASE AREA ARE RATED FROM A \o NOTE: PROPOSED SETTLING BASINS ARE I
/ / 0 DANGEROUS HAZARD PROCEED WITH I
TMP 100-2 s Fv S AACYSIS OF THE I TOPOGRAPHIC \ CAUTION AROUND THE BASIN PERIMETER, STEEP SLOPES (OVER 25%)
CROWN ORCHARD COMPANY O y�' FOR- AYION. THE EX T OF THE CRITICAL SLOPE
ZONING: RA ' p0 PROTECTION TO BE INSTALLED BY _
*c 9RAS INCLUDE E SIDE SLOPES OF STOCKPILES, \ r "�
USE: ORCHARD �/� /No SETTLING B S, OVERBURDEN PLACEMENT OR OTHER \ OWNER \ \ WPO STREAM BUFFER
MANMAD ATURES GENERATED FROM THE NORMAL o \ I \1 L . J
. ,b /'a0 BUST OPERATIONS OF A QUARRY. m \ I EXISTING AND PROPOSED TRAVEL WAYS
Sao \
/ \
��O -00 N \ / im \
O Sao � O' SETBACK BASED UPON ASSUMED 50'\ PRESCRIPTIVE ROW FOR RED \ \\\ ; / \I `\ 100-YEAR FLOODPLAIN
HILL ROAD ___v l ; ' , // 0405 )
/ / I�I i r / A v V I I /�_/ , _ A v_-\ —
, FIRM PANEL 51003C D
/ I r ; \\\ \'1 / - I \\ \\\ - - -\_ _ __ 1 100 YEAR FLOODPLAIN
/ I 1 / _ — \ I ' /' 1 bar f <Y , - ,. �'\��
v ■ I ■
;' _� . -/` ( ( \,\.`II --- -' ,F,Y '---- --;::- - -\ \ (LOMR 20-03-1246P)
/ l ^ - --_ v v A \ r /ti
XX •\ 1 `
/ / ; \ /' r ---- / _ \ I - \\\ I /' - ♦ ,-' s� tj _ _ ♦ _ \ - _ / _ _ 1 ' ,� -\\ . M. EXTENT OF PROPOSED SDP
\\. - l / I , ( r i \_\ / ( (\ \\I I l:l / /` /''// 0' I1) n Ir \ ` �—)2'4 \_: ♦ `_)"
I --, f , / 1 - \ \ \
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vv / / I .Jr ram J � __ / i i A A v,_/// / /, '�AA �N jr-♦ I
y _,/ \/ _/// p P P'i �_ f m TMP 88-13 ,r<C
- `-`r'\ �; I , L° o o —\) -,- \ (-\ -t �l �. LIMITS OF CLEARING AND GRADING
11 / r,_, F _J, — — — — — — —' / ,' _ �-� � I' MARTIN—MARIETTA , J
((I(
)))
�' — — 0 CONSTRUCTION ENTRANCE
- CORP CONSTRUCTION CE
, / / I - ,'` E1 ;
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I / / ! J\g - - --- ,-/ / _ ,- / V \ �; - �. USE: l VACANT -\\ -
J -\ _` /I / / ( f \ ' _ -J _ ", ' I -- i� ' 1---I___,__,,__\DD DIVERSION DIKE
� r I II IJ / do 1�`, - -- ' , / %, _ - /' / - - ,- ', t // \ \ , \ ,'\ '
'J r (, \_t' r I(./_ I \\ \\\ (\%�E,\\ stir c` (1\ \ _ _ ,,.�r' ''/ ///' ,'' /' / -''/// �-''' j / `\\mil `\ �m lyrj I/ ( J/ \ r ,( ,11I DUST CONTROL
\ _ __ _
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. _,
1 C /y / ', ---- , �_/'HBO" STRE,4M-8UFFER � � ,I- -,r'' I
P$ PERMANENT SEEDING
/ / /' / I ' / •� Z, ,'� !�-
�=-%c 1. ' NOTE: AFTER PLANT IS INSTALLED & _,1\f1, TP TREE PROTECTION
/ s s` ss -
. . / / . I - -- -I TRAVEL WAY IN PLACE, CONTRACTOR --
, / / %c _ ; t - r'1 , r `fJ SHALL STABILIZE ALL AREAS WHICH DRAIN \� L `Jr TMP 88-13B I NjU MULCH
TO THE SEDIMENT TRAP AND EXCAVATE \ MARTIN MARIETTA
THE STILLING BASIN. ONCE STILLING o MATERIALS INC,
- /'-\ ZONING: RA
- I ,J
/ \-r BASIN IS IN PLACE AND STABLE GRASS IS
ws, \ rJ-
067��l
I * f '� o IN PLACE, REMOVE SEDIMENT TRAP AND \ USE: VACANT
r\` � i/ / .11 . it M �. - Ift IRE -ESTABLISH Off\ i "Iy�0 SCALE1"=30'
BERM TO STILLING BASINS
.
Mono
/ I I./ .1 I /. _ \\ ,-1 30 0 30 60
+, / , i I I / n / - I j ,' � - / /\ i-non i \�\ - 1's\- ,�` --,578 _ 1 - C,
/ 1/ ,_, _ _ - -MI Mi � �I� _ _ /' �7__...� � —_— _ ___\ ALE IN FEET
/ i,-\ i I1I .f I / f' l l I' 5� \ \ \ ! �J - (+/ 'J <-�_/ ' - Y't`)' l� " �� o �SgO\\ ---.-�.,pi. n,l 578 /. --� .•
r 57 --=Mmm�m� `/ � l ''r - - ..-. - ' Q
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.\ irl I b - 568-. 1572 I D i % _-_ C i i ) I l 8, - - /. _ - � i .'i- - -
I'I /' / \ rl/ / / — _J } - _ /�, J., /_ / 582 f .�. - ,_
/ ' \-7 1/ / I - o - (�� - -sue`\ I / - \ 1 ,'--572�- \-_ \,- .,'P/-f ...i � - 5g0� _� - _ . - - - - // � r• \ i �- � � � � _ / \\ I 'ram' 584 L'' - - _ / \ .- '^ �.�578 ; ' ._- ` _. � ..\� ._ �
'- l - \0_��. .. CREEK —...-..`\\ -.. .�' ---1._-,___ - �y5_ ♦ _-- - o .\ 8z. - _ --- /isy - �/'- �-,� -'fir!♦
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-- \ - ,
�+_ .\--� 11 /( - -- �\ - - ���_`_-i --580- !!ter �'�`-- V- r _ / , - - 584 6 --- - - _ - .'--1 .� --\ _ j --- ' _ - - - -\ - - gS / � - -
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' l \100 YR. FLOOD�LAIIJ 1— y!� : 6— -- / /IIIIIIIIIIIIIIII'
\,' (LOW �0J63-1246P) s -- 2
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j\ PROP. 584 / / 588 5901 / 592 ,/
/ ,> . , 584 o SETTLING PS ,-^ 588 �' ' - /
\ J +z - m BASIN #1 - - - :::::::::::::::. 590 r i \ / . .,,,/ ' ' 1 - �,•
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FILE:
8719
SHEET:
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22841 4
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AREA (SF)
VOULME (CY)
SETTLING BASIN #
AREA (SF)
VOLUME (CY)
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1959 SF
478 CY
PROPOSED SETTLING BASIN #1
1970 SF
489 CY
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479 CY
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815 CY
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DESIGNED BY:
AG
DRAWN BY:
AG
'CHECKED BY:
TD
DATE:
03-07-2021
SCALE:
1" = 30'
JOB:
19.0032
FILE:
8719
SHEEP:
1 1 OF 16
94
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
30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT
DORMANT FOR MORE THAN ONE YEAR.
CONTRACTOR SHALL ESTABLISH A STABILIZED SITE, AND NOT ALLOW ANY EROSION WITHIN
THE SITE OR ANY SEDIMENT TO EXIT.
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.
SOIL STOCKPILES WILL BE LOCATED ONSITE. EXCESS MATERIAL NOT USED FOR ON SITE
GRADING TO BE HAULED TO AN APPROVED SITE WITH ADEQUATE EROSION CONTROL
PROTECTION.
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.
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.
CONTRACTOR TO ESTABLISH PERIMETER CONTROLS AS SHOWN ON ON THE PHASE 1
EROSION CONTROL PLANS AS THE FIRST STEP OF CONSTRUCTION.
5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS,
DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION.
CONTRACTOR SHALL STABILIZE ALL EARTHEN STRUCTURES IMMEDIATELY AFTER
INSTALLATION. CONTRACTOR SHALL INSPECT THOSE STABILIZATION AND 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.
SEDIMENT TRAPS ARE NOT USED AS PART OF THE EROSION CONTROL MEASURES FOR
THIS PROJECT.
A. 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(3.0) ACRES.
B. 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
TWENTY-FIVE 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.
SEDIMENT BASINS ARE NOT USED AS PART OF THE EROSION CONTROL MEASURES FOR
THIS PROJECT.
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.
THIS APPLIES TO ALL DISTURBED AREAS.
8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED
WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR SLOPE DRAIN
STRUCTURE.
SITE RUN-OFF WILL BE DIRECTED TO MAN-MADE BERM, AND CONVEYED TO APPROVED
SEDIMENT TRAP.
9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER
PROTECTION SHALL BE PROVIDED.
CONTRACTOR SHALL PROVIDE ADEQUATE DRAINAGE OR OTHER PROTECTION IF THIS
OCCURS.
10. ALL STORM SEWER INLETS THAT ARE INSTALLED 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.
CONTRACTOR TO INSTALL INLET PROTECTION ON ALL STORM SEWER INLETS TO PREVENT
SEDIMENT FROM ENTERING THE PIPES.
11. BEFORE NEWLY CONSTRUCTED STORM WATER 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.
CONTRACTOR TO INSTALL OUTLET PROTECTION AND ANY TEMPORARY AND/OR PERMANENT
STABILIZATION MEASURES TO THE RECEIVING CHANNEL PRIOR TO THE STORM SEWER
SYSTEM IS MADE OPERATIONAL.
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.
THERE ARE NO LIVE WATERCOURSES WITHIN THE PROJECT SITE.
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.
THERE ARE NO LIVE WATERCOURSES WITHIN THE PROJECT SITE.
14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR
CROSSING LIVE WATERCOURSES SHALL BE MET.
THERE ARE NO LIVE WATERCOURSES WITHIN THE PROJECT SITE.
15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER
WORK IN THE WATERCOURSE IS COMPLETED.
THERE ARE NO LIVE WATERCOURSES WITHIN THE PROJECT SITE.
16. 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.
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 BACK FILLING TRENCHES SHALL BE PROPERLY COMPACTED IN
ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION.
E. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS.
F. APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH.
THIS APPLIES TO ALL UTILITY INSTALLATION OPERATIONS INCLUDING WATER, SEWER,
POWER, CABLE OR GAS.
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.
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 LOCAL PROGRAM 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 ANY EROSION CONTROL MEASURES.
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 STORM WATER RUNOFF FOR THE STATED
FREQUENCY STORM OF 24-HOUR DURATION IN ACCORDANCE WITH THE FOLLOWING
STANDARDS AND CRITERIA
A. CONCENTRATED STORM WATER 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
B. 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.
a. "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.a.THE MANMADE STORMWATER CONVEYANCE SYSTEM SHALL CONVEY THE
POST- DEVELOPMENTPEAK 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.
a.b.THE PEAK DISCHARGE REQUIREMENTS FOR CONCENTRATED STORMWATER FLOW
TO NATURAL STORMWATER CONVEYANCE SYSTEMS SHALL BE MET.
Q Developed <= I.F. * (Q Pre-Dev * RV Pre-Dev)/RV Developed
I.F. = 0.8 FOR SITES > 1 ACRE; I.F. = 0.9 FOR SITES <= 1 ACRES
UNDER NO CONDITION SHALL Q Developed > Q Pre-Dev
NOR SHALL Q Developed BE REQUIRED TO BE LESS THAN THAT
Q Forest * RV Pre-Dev)/RV Developed
OR IN ACCORDANCE WITH ANOTHER METHODOLOGY THAT IS DEMONSTRATED BY
THE VSMP AUTHORITY TO ACHIEVE EQUIVALENT RESULTS AND IS APPROVED BY
THE BOARD.
b."NATURAL STORMWATER CONVEYANCE SYSTEM" MEANS THE MAIN CHANNEL OF A
NATURAL STREAM AND THE FLOOD -PRONE AREA ADJACENT TO THE MAIN CHANNEL
OR,
c."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-
c.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.
c.b.THE PEAK DISCHARGE REQUIREMENTS FOR CONCENTRATED STORMWATER FLOW
TO NATURAL STORMWATER CONVEYANCE SYSTEMS SHALL BE MET. SEE
19(B)(1)(b).
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 -CONSTRUCTION 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
THIS PROJECT IS FOR THE REMOVAL OF THE EXISTING ASPHALT PLANT AND THE INSTALLATION
OF A NEW ASPHALT PLANT. LIMITS OF DISTURBANCE IS 2.4 ACRES
EXISTING SITE CONDITIONS
THE EXISTING SITE IS A WORKING ASPHALT PLANT THAT OPERATES IN A LEASED AREA WITHIN
THE PARCEL FOR THE RED HILL QUARRY. THE EXISTING LEASE AREA IS A GRAVEL COVERED
AREA WITH EXISTING STOCKPILES OF AGGREGATE THAT IS USED IN THE MANUFACTURE OF THE
ASPHALT MIX.
ADJACENT AREAS
TO THE WEST OF THE LEASE AREA IS AN EXISTING CREEK THAT IS ASSOCIATED WITH A 100"
STREAM BUFFER AND FLOODPLAIN THAT ARE LOCATED WITHIN THE DEVELOPMENT AREA.
FURTHER TO THE WEST IS A VACANT PARCEL OWNED BY MARTIN MARIETTA, THE OWNERS OF
THE QUARRY. THE VACANT PARCEL IS CURRENTLY COVERED BY TREES. TO THE NORTH OF
THE LEASE AREA IS VACANT LAND LOCATED ON THE QUARRY PARCEL. IT HAS NOT BEEN
DISTURBED BY QUARRY OPERATIONS AS OF THIS DATE. TO THE EAST OF THE LEASE AREA IS
THE ACTIVE QUARRY OPERATIONS THAT SUPPLY AGGREGATE TO THE ASPHALT PLANT. TO THE
SOUTH OF THE LEASE AREA IS ROUTE 708, RED HILL ROAD.
OFF -SITE AREAS
SOME GRADING AND CONSTRUCTION ACTIVITY WILL BE TAKING PLACE OUTSIDE THE EASTERN
BOUNDARY OF THE LEASE AREA. THESE ACTIVITIES SHOULD BE COORDINATED WITH THE
QUARRY OPERATIONS.
SOILS
§,Q PITS/QUARRY
OPEN EXCAVATION FOR GRANITE, GREENSTONE, AND/OR SOAPSTONE MAPPED AREAS INCLUDE
POOLS OF WATER AND SPOILS PILES. HYDROLOGIC GROUP -UNRANKED. SURFACE RUNOFF AND
EROSION HAZARD -UNRANKED. THE EASTERN SLOPE AREA BETWEEN THE S.L. WILLIAMSON
LEASE AREA AND THE MARTIN MARIETTA QUARRY IS AN AREA OF SPOILS PILES.
77 RIVERVIEW-CHEWACLA COMPLEX (0-2%)
COMPLEX OF DEEP. NEARLY LEVEL, WELL DRAINED AND SOMEWHAT POORLY DRAINED SOILS
ON FLOODPLAINS ALONG SMALLER STREAMS. PERMEABILITY OF SOILS IS MODERATE AND
AVAILABLE WATER CAPACITY IS HIGH. RUNOFF IS SLOW AND EROSION HAZARD LOW.
HYDROLOGIC SOIL GROUP: B
STRUCTURAL PRACTICES
1. SAFETY FENCE (3.01) - A TEMPORARY SAFETY FENCE SHALL BE ERECTED TO PROHIBIT
PUBLIC ACCESS TO THE PROJECT AREA AND AROUND SENSITIVE AREAS TO PROTECT THEM
FROM CONSTRUCTION TRAFFIC.
2. TEMPORARY CONSTRUCTION ENTRANCE (3.02) - A TEMPORARY CONSTRUCTION ENTRANCE
SHALL BE INSTALLED AT THE SITE ENTRANCE AS SHOWN ON THE EROSION AND SEDIMENT
CONTROL PLAN.
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 SHOWN 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 AS SHOWN ON THE EROSION AND
SEDIMENT CONTROL PLAN.
6. INLET PROTECTION (3.07) - INLET PROTECTION WILL BE INSTALLED AT ALL PROPOSED
STORM DRAIN INLETS INSTALLED PRIOR TO FINAL STABILIZATION OF THE SITE.
7. CULVERT INLET PROTECTION (3.08) - SEDIMENT FILTER INSTALLED TO PREVENT SEDIMENT
FROM ENTERING, ACCUMULATING IN OR BEING TRANSFERRED BY A CULVERT.
8. TEMPORARY DIVERSION DIKES (3.09) - A SYSTEM OF DIVERSION DIKES TO DIRECT FLOW
INTO THE SEDIMENT TRAP. WILL BE INSTALLED AS SHOWN ON THE EROSION AND
SEDIMENT CONTROL PLAN.
9. CLEAN -WATER DIVERSION DIKES - A SYSTEM OF DIVERSION DIKES TO DIRECT THE FLOW
OF CLEAN OFFSITE WATER AWAY FROM THE SITE WILL BE INSTALLED AS SHOWN ON THE
EROSION AND SEDIMENT CONTROL PLAN.
10. TEMPORARY SEDIMENT TRAP (3.13) - A TEMPORARY SEDIMENT TRAP IS TO BE
CONSTRUCTED IN CONJUNCTION WITH CULVERT INLET PROTECTION. CALCULATIONS FOR THE
SEDIMENT TRAP ARE SHOWN WITH THE EROSION AND SEDIMENT CONTROL DETAILS.
11. TEMPORARY SEDIMENT BASIN (3.14) - A TEMPORARY SEDIMENT BASIN IS TO BE
CONSTRUCTED AS SHOWN ON THE EROSION AND SEDIMENT CONTROL PLAN. CALCULATIONS
FOR THE SEDIMENT BASIN ARE SHOWN WITH THE EROSION AND SEDIMENT CONTROL DETAIL
FOR THE SEDIMENT BASIN.
12. STORMWATER CONVEYANCE CHANNEL (3.17) - A SERIES OF CHANNELS SHALL BE
CONSTRUCTED TO PROVIDE FOR THE CONVEYANCE OF CONCENTRATED RUNOFF TO A
RECEIVING CHANNEL WITHOUT DAMAGE FROM EROSION. TYPICAL DITCH SECTIONS &
CALCULATIONS ARE SHOWN ON THE PLAN.
13. OUTLET PROTECTION (3.18) - OUTLET PROTECTION WILL BE INSTALLED AT THE END OF
ALL STORM SEWER PIPES. CALCULATIONS FOR THE OUTLET PROTECTION ARE SHOWN WITH
THE EROSION AND SEDIMENT CONTROL DETAILS. THE RIPRAP SHOULD BE CHECKED
PERIODICALLY TO ENSURE SCOURING IS NOT OCCURRING BENEATH FABRIC UNDERLINING
OF THE RIPRAP LAYER.
14. CHECK DAM (3.20) - ROCK CHECK DAMS WILL BE INSTALLED IN THE PROPOSED
DITCHES TO REDUCE THE VELOCITY OF CONCENTRATED FLOWS WHICH WILL HELP. IN THE
ESTABLISHMENT OF THE GRASS LINING. AFTER THE UPSLOPE AREA IS STABILIZED, THE
CHECK DAMS MAY BE REMOVED AND PROPERLY DISPOSED IN ACCORDANCE WITH VECSH
REGULATIONS.
15. LEVEL SPREADER (3.21) - LEVEL SPREADER WILL BE INSTALLED AT THE END OF
DIVERSIONS OR DIKES TO CONVERT CHANNELIZED FLOW TO SHEET FLOW TO AVOID
CAUSING EROSION.
16. TURBIDITY CURTAIN (3.27) - A FLOATING GEOTEXTILE MATERIAL WHICH MINIMIZES
SEDIMENT TRANSPORT FROM A DISTURBED AREA ADJACENT TO OR WITHIN A BODY OF
WATER.
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 SHOWN 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 BEGIN AND END
AS QUICKLY AS POSSIBLE.
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 TRAPPING MEASURES SHALL BE INSTALLED WITH PERIMETER SILT FENCE PRIOR
TO ANY GRADING AND SHALL BE SEEDED AND MULCHED IMMEDIATELY FOLLOWING
INSTALLATION.
4. THE SEDIMENT TRAPS 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
TRAP(S) AND/OR SEDIMENT BASIN(S). THE SEDIMENT TRAP(S) AND/OR BASIN(S) SHALL
REMAIN FUNCTIONAL THROUGHOUT INSTALLATION OF THE STORM SEWER INLETS, PIPES,
AND OUTFALLS.
9. 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.
10. 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:
2. THE CONSTRUCTION ENTRANCE SHALL BE CHECKED DAILY FOR SOIL BUILDUP. IF THE
ENTRANCE BECOMES CLOGGED WITH SOIL AND FAILS TO PREVENT TRANSPORTATION OF
SOIL ONTO THE ROADWAY, ADDITIONAL STONE, REPLACEMENT OF STONE, OR A WASH -RACK
MAY BE REQUIRED.
3. 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. SEDIMENT DEPOSITS 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.
4. 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:
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.
SEQUENCE OF CONSTRUCTION
PHASE I:
1. AFTER OBTAINING ALL REQUIRED PERMITS THE CONTRACTOR SHALL COORDINATE A
PRE -CONSTRUCTION MEETING, ALLOWING 72 HOURS FOR ITS COORDINATION.
2. CONTRACTOR INSTALL CONSTRUCTION ENTRANCE AND TREE PROTECTION AS FIRST STEP IN
CONSTRUCTION.
3. CLEARING AND GRUBBING SHALL FIRST BE LIMITED TO AREA NECESSARY TO INSTALL
PERIMETER CONTROL DEVICES.
4. INSTALL ADDITIONAL ENVIRONMENTAL CONTROLS: SUCH AS SILT FENCE, SUPER SILT FENCE,
DIVERSION DIKES & SEDIMENT TRAP.
5. BEGIN REMOVAL OF THE EXISTING ASPHALT PLANT
6. AFTER REMOVAL OF EXISTING PLANT, GRADING ACTIVITIES CAN START TO CONSTRUCT THE
RETAINING WALLS AROUND THE FEED BINS.
PHASE II:
1. BEGIN EXCAVATION, GRADING & INSTALLATION ACTIVITIES FOR RETAINING WALLS
2. BEGIN NEW ASPHALT PLANT INSTALLATION
3. CONVERT TEMPORARY SEDIMENT TRAP TO SETTLING BASIN AND INSTALL NEW SETTLING
BASIN.
4. FINE GRADE SITE TO PROPOSED GRADES
5. PAVE PROPOSED ASPHALT AREAS
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FILE:
8719
SHEET:
12 OF 16
i
CE CONSTRUCTION ENTRANCE
STONE CONSTRUCTION ENTRANCE
70' MIN.
fl
FILTER CLOTH 6" MIN. I Al
SIDE ELEVATION
CDURiCu GGREGATE B TDVSEDIMENT��
I TRAPPING DEVICE
MUST
OF INGRON ESS
FULL WIDTH PLAN VIEW
OF INGRESS AND EGRESS
REINFORCED CONCRETE
SECTION B-B
EXISTING
PAVEMENT
5:1
MOUNTABLE BERM
(OPTIONAL)
EXISTING
PAVEMENT
10' MIN.
DRAIN SPACE
SOURCE: ADAPTED from 1983 MalXand Standards for Soil erosion and Sediment Control, and Va. DSWC
SF SILT FENCE
CONSTRUCTION OF A SILT FENCE
(WITH WIRE SUPPORT)
1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS.
TRENCH UPSLOPE ALONG THE LINE
OF POSTS.
l � i
Plate 3.02-1
TS TEMPORARY SEEDING PLANT MATERIALS,
Arrr\�\ �r1 P'1 ATrf1 A \ fir\ r\ A TrA
FOR THE PIEDMONT AREA
SEEDING RATE (PER
2/15 TO
9/1 TO
SPECIES
AC.)
4/30
5/1 TO 9/1
11 /15
OATS (Avena sativa)
3 BU. (UP TO 100 LBS., NOT
X
LESS THAN 50 LBS.)
RYE " (Secale cereale)
2 BU. (UP TO 110 LBS., NOT
X
X
LESS THAN 50 LBS.)
GERMAN MILLET (Setaria
50 LBS.
X
italica)
ANNUAL RYEGRASS * (Lolium
60 LBS.
X
X
multi-florum)
WEEPING LOVEGRASS
15 LBS.
X
(Eragrostis curvula)
KOREAN LESPEDEZA *
25 LBS.
X
X
(Lespedeza stipulacea)
MAY BE USED AS A COVER CROP WITH SPRING CROP
MAY BE USED AS A COVER CROP WITH WINTER CROP
X MAY BE PLANTED BETWEEN THESE DATES
MAY NOT BE PLANTED BETWEEN THESE DATES
TP TREE PROTECTION
DRIP LINE
PROTECTIVE DEVICE
MAXIMUM LIMITS OF
CLEARING AND GRADING
PROPOSED GRADING \
/ MIN. 5'
r.
•y/) WHERE DRIPLINE
IS LESS THAN
5'
CONSTRUCTION OPERATIONS RELATIVE
TO THE LOCATION OF PROTECTED TREES
sT TEMPORARY SEDIMENT TRAP
ORIGINAL
GROUND
ELCv
8]CU. YD./ACRE
IIII' Vmlmuffi
a/cu. vo./ACRE N
/ W MAx
(EXCAVATED) .
1 1 FILTER CLaiH oRIGINu
FLOW II II III I GECUN
4^ 'SEE PWTE313-1 "COPASE AfifREG4TE CI IRIPWW
CROSS SECTION OF OUTLET
3. ATTACH THE FILTER FABRIC TO THE WIRE 4. BACKFILL AND COMPACT THE
CTASS I RIPRAP pN IT
FENCE AND EXTEND IT INTO THE TRENCH. EXCAVATED SOIL. \ cz oHNNAGPE AREA
z DNA )
EXTENSION OF FABRIC AND WIRE INTO THE TRENCH.
SOURCE: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control, PLATE. 3.05-1
Shernaod k Iyan
1..COAR3EAGGREGATE \ /
ExCAVATEO Or / RLTER cLOT//�\
AREA
f..00ARSEAGGREGATES"ALLBEVD0T#3,#M7] #5
OUTLET (PERSPECTIVE VIEM
%-)TEMPORARY SEDIMENT TRAP
MOTTO SCALE 3.13-2
PS PERMANENT SEEDING MIXTURES
FOR THE PIEDMONT AREA
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%
- KENTUCKY BLUEGRASS 0-5%
HIGH MAINTENANCE LAWN 200-250 LBS.
- KENTUCKY 31 OR TURF -TYPE TALL FESCUE 100%
GENERAL SLOPE (3:1 OR LESS)
- KENTUCKY 31 FESCUE 128 LBS.
- RED TOP GRASS 2 LBS.
- SEASONAL NURSE CROP* 20 LBS.
TOTAL 15O 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 31ST............ ANNUAL RYE
NOVEMBER 1ST 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 INOCULATED. WEEPING LOVEGRASS MAY BE ADDED TO ANY SLOPE OR LOW
MAINTENANCE MIX DURING WARMER SEEDING PERIODS; ADD 10-20 LBS./ACRE IN MIXES.
STONE 70' MIN.
CONSTRUCTION
ACCESS r 3" SM-2A ASPHALT TOP
1 COURSE
2%
STONE
CONSTRUCTION
ACCESS
2%
6- MIN. 21A AGGREGATE BASE
PROFILE
EXISTING
PAVEMENT
-70" MIN.
ASPHALT PAVED
WASHRA"
EXISTING
I 2% PAVEMENT
12% 12' MIN.*
*MUST EXTEND FULL WIDTH Lo POSITIVE DRrUNAGE
Or INGRESS AND EGRESS TO SEDIMENT
OPERATION TRAPPING DEVICE
31AN
12' MIN. - �-{PoslTn� DRAINAGE I
TO SEDIMENT
27
•anooiMr. n"ICE
A unumuuunn wato tap of 1 inch i n I be installed %%ith a numinmu 1 inch ballcock
sbutoff valve tiul)pl Luz a wash hose \Siff) a dlallletel of 1.5 cache for adequate
coostmnt pressm'e. -Wish water nnust be caned away from [lie enhance to illl
approved settling area to remol•e seduuent. ?ll sedunlenit shall be pret euted fraru
eateriuR Stonll (h'aiins, flitches or watercoinse3_
PAVED WASH RACK
NC SL:4,A
TABLE 3.35-A
ORGANIC MULCH MATERIALS AND APPLICATION RATES
RATES:
MULCHES:
NOTES:
Per Acre
Per 1000 sq. ft.
Straw or Hay
1 � - 2 tons
70 - 90 lbs.
Free from weeds and coarse
(Minimum 2
matter. Must be anchored.
tons for
Spread with mulch blower
winter cover)
or by hand.
Fiber Mulch
Minimum
35 lbs.
Do not use as mulch for
1500 lbs.
winter cover or during hot,
dry periods.` Apply as
slurry.
Com Stalks
4 - 6 tons
185 - 275 lbs.
Cut or shredded in 4-6"
lengths. Air-dried. Do not
use in fine turf areas. Apply
with mulch blower or by
hand.
Wood Chips
4 - 6 tons
185 - 275 lbs.
Free of coarse matter. Air-
dried. Treat with 12 lbs
nitrogen per ton. Do not
use in fine turf areas. Apply
with mulch blower, chip
handler, or by hand.
Bark Chips
50 - 70 cu.
1-2 cu. yds.
Free of coarse matter. Air -
or
yds.
dried. Do not use in fine
Shredded
turf areas. Apply with
Bark
mulch blower, chip handler,
or by hand.
` When fiber mulch is the only available mulch during periods when straw
should be used, apply at a mfnfmum rate of 20001bs./ac. or 45 lbs./1000 sq. ft.
Source: Va. DSWC
MINIMUM TOP WID TII (W)
REQUIRED FOR SEDIMENT
TRAP EMBANKMENTS
ACCORDING TO HEIGHT OF
EMBANKMENT (FEET)
pert
ti
~- \ ExrAVATEO AREA
MAX. DEPTH 4'
Source: Va. DSWC
Grf{�I
H
HO
W
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
4.0
3.0
3.0
4.5
3.5
4.0
5.0
4.0
4.5
ORIGINAL
GROUND
ELEV.
Plate 3.13-1
TEMPORARY DIVERSION DIKE
Source: Va. DSWC
Compacted Soil
_-
18" min. ,
...........
4,5' min.
Plate 3.09-1
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1197
Jimmy L. Taggart
Lic. No.
22841 4�
A���' 6/20/2022 �
ESSIONAL ENG
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DRAWN BY:
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'CHECKED BY:
TD
DATE:
03-07-2021
SCALE:
JOB:
19.0032
FILE:
8719
SHEET:
13 OF 16
9
STREAM BUFFER CALCULATIONS:
THE INWARD 50' OF THE STREAM BUFFER WILL BE
RESTORED AND MITIGATED AS SHOWN HEREON.
THE MITIGATION PLANTINGS WILL BE PROVIDED FOR THE
IMPACTS TO THE LANDWARD 50' OF THE STREAM BUFFER.
MITIGATION AREAS OUTLINED HEREON WILL BE RESTORED BY
REMOVING ALL UNSUITABLE MATERIALS, PROVIDING SOIL
AMENDMENTS WHERE TOPSOIL HAS BEEN REMOVED PRIOR
TO THE INSTALLATION OF THE MITIGATION PLANTINGS.
STREAM BUFFER MITIGATION REPLANTING
IMPACT AREA 1 40,793
MITIGATION AREA REQUIRED = 81,586 SF
MITIGATION AREA PROVIDED = 45,625 SF (1.05 AC)*
(*ALL AREAS INSIDE THE INWARD 50' STREAM BUFFER HAVE
BEEN REPLANTED EXCEPT FOR THE TREE -SAVE AREAS
WITHIN THE S.L. WILLIAMSON LEASE AREA)
MIXED VEGETATION MITIGATION AREAS
REQUIRED: 700 CONTAINER -GROWN SEEDLINGS PER ACRE
MITIGATION AREA A 29,892 SF (0.69 AC)
PLANTING REQUIRED: 480
PLANTING PROVIDED
MITIGATION AREA B 4,777 SF (0.11 AC)
PLANTING REQUIRED: 77
PLANTING PROVIDED: 77
MITIGATION AREA C 10,956 SF (0.25 AC)
PLANTING REQUIRED: 176
PLANTING PROVIDED: 176
733 TOTAL PLANTS REQUIRED (733 PLANTS PROVIDED)
PLANT SCHEDULE PLANTING AREA #A
QNTY.
I BOTANICAL NAME
COMMON NAME
COMMENTS
CANOPY TREES
CONTAINER -GROWN
SEEDLINGS (PLANTING
PATTERNS TO BE MIXED AND
RANDOM TO MIMIC
NATURAL LANDSCAPES,
SPACING TO BE WON CENTER
GENERALLY)
15
Acerrubrum
RED MAPLE
13
Diospyros virginiana
PERSIMMON
14
Liquidamberstraciflua
SWEETGUM
12
Liriodendrontulipifera
TULIP POPLAR
13
Quercus palustris
PIN OAK
131
Platanus occidentalis
SYCAMORE
UNDERSTORY TREEES
15
Alnus serrulata
SMOOTH ALDER
15
Amelanchierlaevis
ALLEGHENYSERVICEBERRY
19
Cercis canadensis
REDBUD
15
Cornusflorida
DOGWOOD
17
Juniperus virginia na
EASTERN RED CEDAR
17
Magnolia virginiana
SWEETBAY MAGNOLIA
19
Oxydendron arboreum
SOURWOOD
15
Pinus virginiana
VIRGINIA PINE
14
Sassafras albidum
SASSAFRAS
14
Viburnum lentago
INANNYBERRY
SHRUBS
19
Hamamelisvirginiana
WITCH HAZEL
19
Hydrangea arborescens
WILD HYDRANGEA
21
Iteavirginica
VIRGINIASWEETSPIRE
17
Lindera benzoin
NORTHERN SPICEBUSH
25
Physocarpus opulifolius
COMMON NINEBARK
17
Rhus glabra
SMOOTH SUMAC
19
Salix discolor
PUSSY WILLOW
17
SambucusCanadensis
AMERICAN ELDERBERRY
19
Spiraea latifolia
MEADOWSWEET
23
Vaccinium angustifolium
LOWBUSH BLUEBERRY
23
Viburnum dentatum
SOUTHERN ARROWWOOD
21
Viburnum prunifolium
I BLACKHAW VIBURNUM
PLANT SCHEDULE PLANTING AREA #B
QNTY.
BOTANICAL NAME
COMMON NAME
COMMENTS
CANOPY TREES
CONTAINER -GROWN
SEEDLINGS (PLANTING
PATTERNS TO BE MIXED AND
RANDOM TO MIMIC
NATURAL LANDSCAPES,
SPACING TO BE VON CENTER
GENERALLY)
7
lAcer rubrum
RED MAPLE
61
Platanus occidentalis
SYCAMORE
UNDERSTORY TREEES
8
Amelanchierlaevis
ALLEGHENYSERVICEBERRY
9
Cercis canadensis
IREDBUD
9
Oxydendron arboreum
ISOURWOOD
SHRUBS
8
Aronia arbutifolia RED CHOKECHERRY
9
Hamamelisvirginiana
WITCH HAZEL
7
Myrica cerifera
SOUTHERN WAX MYRTLE
7
Physocarpus opulifolius
COMMON NINEBARK
7
Viburnum prunifolium
BLACKHAW VIBURNUM
LEGEND
_ CRITICAL SLOPES (OVER 25%)
r WPO STREAM BUFFER
L
EXISTING AND PROPOSED TRAVEL WAYS
STREAM BUFFER IMPACT AREA
STREAM BUFFER REPLANTING AREA
E I I N 100-YEAR FLOODPLAIN
(LOMR 20-03-1246P)
�I EXTENT OF PROPOSED SDP
M . LIMITS OF CLEARING AND GRADING
SCALE 1 "=30'
30 0 30 60
SCALE IN FEET
— ,' I , _ �' "' \/, fi
TMP l OQ�2 ( pQ "" r �X
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ZONING RA / r / u ^ g - ``- -- -- --
USE. ORCHARD ------ ,--'' �100"STREAM-BUFFER
— - - _'�/'_ �m
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pp CORP CORP CONSTRUCTION. z
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USE.
rlf/_.
l • VACANT
USE VACANT
'= o - ram\ _•`' \ I,'. �\ -578,. \\ _ !„� ^.-j i �..'�^r.-_{,'. .
No / - - ��., >'r =�\•� d �•'-`578-�_-�_�\
PLANTING
!, ,' mil. \1` _ — _ - (\ )(I 1\ \ �_,- ^.�, 57 I
AREA A _ -\ �' -$8p ----- _ --
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r--574- -
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- - — _ -
- 578 \4l\_ _ -- _ _ - �. -/i %'r — -SDP LIMITS SL.-WILLIAMSON LEASE AREA - - - - 586'- --
„�< SDP LIMITS/S.L. WILLIAMSON CEASE AREA =, — — — — 5810 My V I • - _ _ _ ti .r. -__58 -
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PLANTSCHEDULE PLANTINGAREA#C
QNTY.
I BOTANICAL NAME
COMMON NAME
COMMENTS
CANOPY TREES
CONTAINER -GROWN
SEEDLINGS (PLANTING
PATTERNS TO BE MIXED AND
RANDOM TO MIMIC
NATURAL LANDSCAPES,
SPACING TO BE WON CENTER
GENERALLY)
9
Acerrubrum
RED MAPLE
7
Betula nigra
RIVER BIRCH
6
Quercus palustris
PIN OAK
7
Platanus occidentalis
SYCAMORE
UNDERSTORY TREEES
10
Alnus serrulata
SMOOTH ALDER
9
Amelanchierlaevis
ALLEGHENYSERVICEBERRY
9
Cercis canadensis
REDBUD
9
Magnolia virginiana
SWEETBAY MAGNOLIA
10
Oxydendron arboreum
SOURWOOD
11
Viburnum lentago
NANNYBERRY
SHRUBS
11
Aroniaarbutifolia RED CHOKECHERRY
9
Hamamelis virginiana
WITCH HAZEL
9
Itea virginica
VIRGINIASWEETSPIRE
10
Lindera benzoin
NORTHERN SPICEBUSH
10
Myrica cerifera
SOUTHERN WAX MYRTLE
11
Physocarpus opulifolius
COMMON NINEBARK
9
Rhus glabra
SMOOTH SUMAC
10
Viburnum dentatum
I SOUTHERN ARROWWOOD
10
Viburnum prunifolium
I BLACKHAW VIBURNUM
p- n� .,v (Vt •1.r 1'`'it ' tri. ":�' "�/'V'a.{h tf
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DATE:
03-07-2021
SCALE:
1" = 30'
JOB:
19.0032
FILE:
8719
SHEET:
15 OF 16
I
STREAM -BUFFER MITIGATION GENERAL PLANTING NOTES
1. IF IT IS NECESSARY TO KILL OFF ANY INVASIVE UNDESIRED SPECIES WITH HERBICIDES,
SITE PREPARATION SHOULD BEGIN IN THE FALL PRIOR TO THE TREE PLANTING AND
SEEDING. UNDESIRED SPECIES MAY INCLUDE MULTIFLORA ROSE, HONEYSUCKLE AND OTHER
SPECIES DEEMED TO BE INVASIVE BY THE VIRGINIA DEPARTMENT OF CONSERVATION AND
RECREATION. THE HERBICIDE SHOULD BE APPLIED BY A LICENSED SPRAY TECHNICIAN
USING A NON -TOXIC, BIODEGRADABLE HERBICIDE TO CONTROL UNDESIRABLE VEGETATION.
2. FOR AREAS THAT ARE STABILIZED WITH EXISTING GRASS COVER, MOW AND AERATE AREA
PRIOR TO PLANTING.
3. FOR AREAS THAT ARE DISTURBED AND NOT STABILIZED WITH EXISTING GRASS COVER,
AREA SHALL BE PREPARED AND ORDERED BY TILLING OR SCARIFYING TO A MINIMUM
DEPTH OF 2". TEST SOIL PH; THE PH LEVEL WITHIN THE GENERALIZED ROOT ZONE OF
STREAM BUFFER MITIGATION PLANTINGS SHOULD BE TESTED AND BROUGHT TO WITHIN A
RANGE OF 6.0 TO 7.0. THE PH ADJUSTMENTS CAN BE MADE USING POWDERED LIME.
4. VEGETATION SHOULD BE PLANTED AS SOON AS THE AMBIENT SOIL TEMPERATURE IS
ABOVE 41° F THROUGH MAY.
5. PLANTS SHALL REMAIN UPRIGHT DURING TRANSPORT/STORAGE. PLANTS STORED ONSITE
MUST BE PLANTED WITHIN THREE DAYS OF DELIVERY. IN ADDITION, THE PLANTS SHOULD
BE STORED IN A PROTECTED AREA UPON ARRIVAL IN ORDER TO SHADE THEM FROM
EXPOSURE TO THE SUN AND DRYING WIND. TREES AND/OR SHRUBS THAT CANNOT BE
PLANTED IMMEDIATELY UPON DELIVERY SHALL BE KEPT WELL SHADED, PROTECTED, AND
WATERED. ALL DAMAGED PLANTS SHALL BE REMOVED FROM STORAGE WHEREUPON THEY
MAY BE USED AS MULCH UNLESS THEY ARE DISEASED.
6. ALL PLANTING PATTERNS SHALL BE RANDOM AND MIXED TO MIMIC NATURAL LANDSCAPES.
7. HOLES EXCAVATED FOR THE TREES SHALL BE 3-TIMES THE CONTAINER DIAMETER OR AT
LEAST 6" WIDER THAN THE BARE ROOT DIAMETER. THE HOLES MAY BE EXCAVATED EITHER
BY HAND SHOVEL OR BY POWER AUGER. EXCESS SOIL GENERATED FROM THE
EXCAVATIONS SHALL BE DISPOSED OF RANDOMLY OVER THE SITE.
8. THE PLANTS SHALL BE SET AT THE SAME DEPTH THAT THEY WERE GROWN IN AND THE
TRUNK SHOULD BE SITUATED NEARLY PLUMB.
9. AVOID PLANTING SEEDLINGS IN EXTREMELY DRY, HOT OR WINDY CONDITIONS. HEAT AND
WIND CAN QUICKLY DRY OUT LEAVES AND ROOTS.
10. WATER THE SOIL AROUND THE SEEDLINGS IMMEDIATELY AFTER PLANTING.
11. AREAS COMPACTED BY FOOT OR VEHICLE TRAFFIC SHALL BE TILLED OR AERATED PRIOR
TO RESEEDING AREA AFTER TREES AND/OR SHRUBS HAVE BEEN PLANTED.
12. BROADCAST THE SUGGESTED SEED MIX BY HAND OR MACHINE EVENLY OVER THE
PLANTING AREA AND FOLLOW WITH A LIGHT RAKING OR ROLLING TO ACHIEVE GOOD
SEED -TO -SOIL CONTACT. COVER WITH A LIGHT LAYER OF STRAW MULCH.
13. NO STORAGE OF HERBICIDES OR OTHER AGRICULTURAL CHEMICALS SHALL BE PERMITTED
NEAR THE PLANT STORAGE OR MITIGATION AREAS.
14. ALL WOODY PLANTS AND SEED MIXES SPECIFIED ARE NATIVE SPECIES. ANY AND ALL
PLANT OR SEEDING SUBSTITUTIONS MUST BE NATIVE. CONTRACTOR TO VERIFY THAT ANY
SUBSTITUTION IS A NATIVE EQUIVALENT AND NOT ON THE VIRGINIA DEPARTMENT OF
CONSERVATION AND RECREATION INVASIVE SPECIES PLANT LIST.
STREAM -BUFFER MITIGATION MAINTENANCE NOTES
WOODY VEGETATION AREAS
1. VISUALLY INSPECT PLANTING AREAS ON AN ANNUAL BASIS.
A. RESEED BARE SPOTS WITH A MIXTURE OF GRASS, PERENNIAL AND/OR WOODY
VEGETATION SEEDS. USE NATIVE SPECIES ONLY.
B. IDENTIFY WEED PROBLEMS WITHIN THE PLANTING AREA.
a. CONTROL WEEDS AS SOON AS POSSIBLE BEFORE THEY GROW OUT OF CONTROL.
WEED CONTROL METHODS WILL VARY, BUT MAY INCLUDE REMOVAL BY HAND,
MOWING, SELECTIVE USE OF HERBICIDES, MULCHING, AND OTHER INTEGRATED
VEGETATION MANAGEMENT (IVM) TECHNIQUES.
b. CONTINUE WEED CONTROL UNTIL WOODY PLANTS ARE FULLY ESTABLISHED IN THE
PLANTING AREA, NORMALLY 2 TO 3 YEARS AFTER PLANTING.
C. INSPECT AREA FOR EVIDENCE OF HIGH DEER BROWSE PRESSURE OR RODENT
POPULATIONS.
a. IF THERE IS EVIDENCE OF HIGH MORTALITY RATE, CONSIDER AVAILABLE OPTIONS
FOR CONTROLLING PEST PROBLEM SUCH AS FENCING, TREE SHELTERS, AND TREE
CAGES TO REPELLENTS, INCLUDING IN -SOIL SYSTEMIC TABLETS, FOLIAR SPRAYS
OF MANY TYPES AND ACTIVE INGREDIENTS.
D. CHECK SURVIVAL IN LATE FALL AFTER SECOND YEAR TO ESTABLISH SURVIVAL RATE.
MINIMAL SURVIVAL IS 490 PLANTS/ACRE OR A 70% SURVIVAL RATE.
a. IF THE SURVIVAL RATE IS NOT AT THE SPECIFIED MINIMUM AND REPLACEMENT
PLANTINGS ARE WARRANTED, PLANTING AREAS SHOULD BE SURVEYED TO TRY TO
IDENTIFY THE LIKELY CAUSE OF THE PLANT MORTALITY. SOURCES OF THE
MORTALITY SHOULD BE CONTROLLED AND MITIGATED FOR PRIOR PLANTINGS
REPLACEMENTS.
E. CHECK FOR NATURAL REGENERATION. WHERE ABUNDANT, LIMIT FURTHER MOWING
UNLESS SITE IS PRONE TO VOLES OR INVASIVE PLANTS.
F. IF TREE TUBES ARE USED, REGULARLY INSPECT THEM TO MAKE SURE THEY ARE NOT
TOO TIGHT ON THE TREE, THAT SMALL ANIMALS OR INSECTS HAVE NOT BUILT NESTS
INSIDE THE TUBES, AND THAT THE TREE IS GROWING PROPERLY. REPLACE OR
REMOVE THE TUBES AS NEEDED.
G. IN YEARS 3-5, PRUNE AND THIN TREES AND SHRUBS TO ENSURE ADEQUATE
GROWING SPACE AND OPTIMAL GROWTH RATES.
2. VISUALLY INSPECT PLANTING AREAS AFTER MAJOR STORM EVENTS.
A. IF STORM DAMAGE IS PRESENT, FIX EROSION DAMAGE THEN REPLANT AREA AT THE
MINIMUM PLANTING RATE FROM THE ORIGINAL PLANTING PLAN OR RESEED
MANUFACTURES' RECOMMENDED APPLICATION RATE
3. IF POSSIBLE, AVOID WORKING IN THE RIPARIAN AREA BETWEEN APRIL 15 AND AUGUST 15.
DURING THIS TIME PERIOD, DISTURBANCE CAN BE DETRIMENTAL TO A VARIETY OF
WILDLIFE, BECAUSE OF MATING AND NEWLY BORN WILDLIFE.
GRASS AND PERENNIAL PLANTING AREAS
1. VISUALLY INSPECT PLANTING AREAS ON AN ANNUAL BASIS.
A. RESEED BARE SPOTS WITH A MIXTURE OF GRASS AND/OR PERENNIAL SEEDS. USE
NATIVE SPECIES ONLY.
B. IDENTIFY WEED PROBLEMS WITHIN THE PLANTING AREA.
a. CONTROL WEEDS AS SOON AS POSSIBLE BEFORE THEY GROW OUT OF CONTROL.
WEED CONTROL METHODS WILL VARY, BUT MAY INCLUDE REMOVAL BY HAND,
MOWING, SELECTIVE USE OF HERBICIDES, MULCHING, AND OTHER INTEGRATED
VEGETATION MANAGEMENT (IVM) TECHNIQUES.
2. MOW ON AN ANNUAL BASIS TO CONTROL WOODY VEGETATION GROWTH.
3. VISUALLY INSPECT PLANTING AREAS AFTER MAJOR STORM EVENTS.
A. IF STORM DAMAGE IS PRESENT, FIX EROSION DAMAGE THEN REPLANT AREA AT THE
MINIMUM PLANTING RATE FROM THE ORIGINAL PLANTING PLAN OR RESEED
MANUFACTURES' RECOMMENDED APPLICATION RATE
4. IF POSSIBLE, AVOID WORKING IN THE RIPARIAN AREA BETWEEN APRIL 15 AND AUGUST 15.
DURING THIS TIME PERIOD, DISTURBANCE CAN BE DETRIMENTAL TO A VARIETY OF
WILDLIFE, BECAUSE OF MATING AND NEWLY BORN WILDLIFE.
PLANT SCHEDULE SEEDING MIX
Ontv. Botanical Name Common Name Comment
28.00%
Sorghastrum nutans
Indiangrass
Seeding Rate -
20lbs per acre with cover crop
that depends on time of
planting (see manufacturers
recommendations)
PLANTING AREA #A
13.7lbs Seed Mix
PLANTING AREA #B
2.2 Ibs Seed Mix
PLANTING AREA#C
5.0lbs Seed Mix
27.50%
Schizachyrium scoparium
Little Bluestem
20.00%
Elymus virginicus
Virginia Wildrye
5.00%
Chasmanthium latifolium
River Oats
5.00%
Panicum clandestinum
Deertongue
5.00%
Panicum rigidulum
Redtop Panicgrass
3.00%
Rudbeckia hirta
Blackeyed Susan
2.00%
Chamaecrista fasciculata
Partridge Pea
1.00%
Chamaecrista nictitans
Sensitive Pea
1.00%Eupatoriumperfoliatum
Boneset
1.00%
Helenium autumnale
Common Sneezeweed
1.00%
Helenium flexuosum
Purplehead Sneezeweed
0.50%
Vernonia noveboracensis
I New York Ironweed
Ernst Conservation Seeds, Inc. Seed Mix - ERNMX-862 VA Southern Piedmont Riparian Mix or Equivaler
LEGEND
M
CRITICAL SLOPES (OVER 25%)
1 WPO STREAM BUFFER
L J
EXISTING AND PROPOSED TRAVEL WAYS
STREAM BUFFER REPLANTING AREA
N I N 100-YEAR FLOODPLAIN
(LOMR 20-03-1246P)
M 0EXTENT OF PROPOSED SDP
SCALE 1"=30'
30 0 30
SCALE IN FEET
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DESIGNED BY:
AG
DRAWN BY:
AG
'CHECKED BY:
TD
DATE:
03-07-2021
SCALE:
1" = 30'
JOB:
19.0032
FILE:
8719
SHEET:
1 6 OF 16
Section 5. Stormwater Management Plan
(Provide a reduced I Ix17 copy of the latest Stormwater management plan. Do not reference only.)
The development of S.L. Williamson Asphalt Plant will occur in two phases or separate stages of construction. The completed
project will utilize non -concentrated discharge to facilitate channel and flood protection. Stormwater Runoff will be collected
and conveyed via sheet flow. Water quality provision are proposed via offsite nutrient credit purchase.
Regarding Water Quality Analysis:
9VAC25-870-63, water quality design criteria requirements.
offsite nutrient credit purchase.
The water quality portions of this plan will be satisfied using
Regarding Water Quantity Analysis:
Compliance of 9VAC25-870-66-B (Channel Protection): In accordance with channel protection section B of 9VAC25-870-66
of Virginia Law, no concentrated flows are designed to leave the site therefore 870-66-B is not applicable.
Compliance of 9VAC-870-66.0 (Flood Protection):
In reference to flood protection section C.1, no concentrated flows are designed to leave the site therefore 870-66-C is not
applicable.
Compliance of 9VAC-870-66. D (Sheet Flows):
In reference to increased volumes of sheet flows, section D. This site is bordered by, and discharges to a mapped flood plain.
Landcover and use from this project will be fundamentally identical to the current use and landcover therefore as runoff is
relatively unchanged implications to downstream channels and area flood plains are expected to be unchanged as well.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 6. Pollution Prevention Plan.
(Reference County Code 17-404 and State Regulation 9VAC25-880-70-part II section AA)
A. Plan showing pollution activities and prevention practices
(Provide a reduced 11 xl7 copy of a site plan on which all of the following activity locations are
clearlymarked. Keep this plan up-to-date with ongoing site changes and inspections.)
B. Sources of Pollutants, locations, and prevention practices
Minimization of exposure to precipitation and stormwater. Minimize the exposure of building materials, building products,
construction wastes, trash, landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste, and other materials
present on the site to precipitation and to stormwater.
Material/Chemical
Physical Description
Stormwater Pollutants
Location- Areas where
Prevention Practices,
used on site
Control Measures
Clearing, grading,
Brown/Black/Gray silt
Silt
Throughout
Follow Erosion and
excavating and on-
Sediment Control Plan.
stabilized areas
Dispose of clearing
debris at acceptable
disposal sites. Seed and
mulch,
or sod within 7 days of
land clearing
Dewatering Operations
N/A
Silt, gasoline, oil, etc.
Designated area shown on
Water shall be filtered,
plan
settled or similarly
treated prior to discharge
as shown on lan.
Vehicle and equipment
Silt, gasoline, oil, etc.
Designated areas and details
To be treated in a
washing/Wash waters
shown onplan
sediment basin or
better control as
specified on plan.
Minimize the
discharge of
pollutants
from equipment and
vehicle washing. Provide
containment and filtering
for allwash waters per the
plan
Pesticides (insecticides,
Various colored to colorless
Chlorinated hydrocarbons,
Herbicides used for noxious
Follow manufacturer's
fungicides, herbicides,
liquid powder, pellets or
organophosphates,
weed control
instructions
rodenticides)
grairs
carbamates, arsenic
MSDS's attached.
Fertilizer
Liquid or solid grains
Nitrogen, phosphorous
Newly seeded area
Apply fertilizers in
accordance with
manufacturer's
recommendations
and
not during rainfall events
Plaster
White granules or powder
Calcium sulphate, calcium
Building Construction
Enclose or cover
carbonate, sulfuric acid
material storage areas.
Mix paint indoors in a
containment area orin a
flat unpaved area.
Prevent the discharge of
soaps, solvents,
detergents and wash
water, paint, form
release oils
and curing compounds.
Follow manufacturer's
instructions
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
MSDS's attached.
Cleaning solvents
Colorless, blue or yellow-
Perchloroethylene, methylene
Equipment Cleaning
Enclose or cover
green liquid
chloride, trichloroethylene,
material storage areas.
petroleum distillates
Mix paint indoors in a
containment area orin a
flat unpaved area.
Prevent the discharge of
soaps, solvents,
detergents and wash
water, paint, form
release oils
and curing compounds.
Follow manufacturer's
instructions
MSDS's attached.
Asphalt
Black solid
Oil, petroleum distillates
Streets and roofing
Cover storm drain inlets
and use drip
pans and absorbentloil dry
for all pavingmachines to
limit leaks ands ills
Concrete and curing
White solid/grey liquid
Limestone, sand, pH,
Curb and gutter, sidewalk
Direct concrete wash
compounds
chromium
and building construction
water into a leak- proof
container or leak -proof
settling basin that is
designed so that no
overflows
can occur. Follow
manufacturer's
instructions
MSDS's attached.
Glue, Adhesives
White or yellow liquid
Polymers, epoxies
Building Construction
Enclose or cover
material storage areas.
Mix paint indoors in a
containment area orin a
flat unpaved area.
Prevent the discharge of
soaps, solvents,
detergents and wash
water, paint, form
release oils
and curing compounds.
Follow manufacturer's
instructions
MSDS's attached.
Paints
Various colored liquid
Metal oxides, Stoddard
Building Construction
Enclose or cover
solvent, talc, calcium
material storage areas.
carbonate, arsenic
Mix paint indoors in a
containment area orin a
flat unpaved area.
Prevent the discharge of
soaps, solvents,
detergents and wash
water, paint, form
release oils
and curing compounds,
Hydraulic oil/fluids
Brown oily petroleum
Mineral oil
Leaks or broken hoses from
Designated areas
hydrocarbon
equipment
for material
deliveryand storage.
Placed near
construction
entrances, away
from waterways
and
drama e paths
Wood preservatives
Clear amber or dark brown
Stoddard solvent, petroleum
Timber pads and home
Enclose or cover
liquid
distillates, arsenic, copper,
construction
material storage areas.
chromium
Mix paint indoors in a
containment area orin a
flat unpaved area.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Prevent the discharge of
soaps, solvents,
detergents and wash
water, paint, form
release oils
and curing compounds.
Follow manufacturer's
instructions
MSDS's attached.
Gasoline
Colorless, pale brown or
Benzene, ethyl benzene,
Secondary containment/
Designated areas
pink petroleum
toluene, xylene, MTBE
staging area or leaks.
for material
hydrocarbon
Deliveries to site
deliveryand storage.
Placed near
construction
entrances, away
from waterways
and
drainage paths
Diesel Fuel
Clear, Glue -green to yellow
Petroleum distillate, oil and
Secondary
Designated areas
liquid
grease, naphthalene, xylenes
contamment/staging area or
for material
leaks. Deliveries to site.
deliveryand storage.
Placed near
construction
entrances, away
from waterways
and
drainage paths
Antifreeze/coolant
Clear green/yellow liquid
Ethylene glycol, propylene,
Leaks or broken hoses from
Designated areas
glycol, heavy metals (copper,
equipment and deliveries to
for material
lead, zinc)
site.
deliveryand storage.
Placed near
construction
entrances, away
from waterways
and
drainage paths
Sanitary Toilets
Various colored liquid
Bacteria, parasites, and
Location shown on plans
Convenient and well -
viruses
maintained portable
sanitary facilities will
be provided, and
located away from
waterways or inlets.
Such facilities shall
be regularly maintained.
Solid Waste Disposal
Designed container areas
Waste collection area
shown on plan
will not receive a
substantial amount of
runoff from upland
areas and does not
drain directly to a
waterway. Containers
have lids covered
before periods of rain,
or are in a coveredarea.
Scheduled collection to
prevent overfilling.
MATERIALS NOT
TO BE BURIED ON -
SITE.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
C. Non-stormwater discharges
It is expected that the following non-stormwater discharges will occur from the site during the construction period.
I. 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.
Keep this CHART up-to-date with ongoing site changes and inspections.
Discharge Pollutants or Pollutant Location on Site
Constituents
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
D. Persons responsible for pollution prevention practices
S.L. Williamson Company, Inc., Blair Williamson
1230 River Road Charlottesville, VA 22901
(434)295-6137
blair@slvvilliamson.com
If other than above, site contractor will be added during pre -con meeting;
E. Response and reporting practices
Detailed response and reporting practices according to 9VAC25-880-70, Part II, section A.4.e.
Minimize discharges from spills and leaks. Minimize the discharge of pollutants from spills and leaks and implement chemical
spill and leak prevention and response procedures as follows.
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:
North Garden Fire Department:
434-296-5561
Albemarle County Police Department:
434-977-9041
Albemarle County 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
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
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 stone 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.
**Spill report form and procedure can be found in Section 13. Additional Information and Logs**
F. Pollution Prevention Awareness
Material Management Practices/Spill Prevention:
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. Weekly tailgate training
meetings are advised to ensure that as the site evolves and changes employees are up to date on all PPP
practices. A training log to document these meetings can be found in Section 13. Additional Information and
Logs.
(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
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Hazardous Products:
These practices are used to reduce the risk associated with hazardous materials. Hazardous waste to include oil
filters, petroleum products, paint, curing compounds and equipment maintenance fluids.
1. Products will be kept in original containers unless they are not re -sealable.
2. Products will be stored in structurally sound and sealed containers and segregated from other non -waste
materials.
3. Original specimen labels and materials safety data sheets will be kept on file; they contain important product
information.
4. If surplus product must be disposed of, manufacturers and/or local and State recommended methods for
proper disposal will be followed.
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 are identified on the SWPPP/PPP Reference Drawing
included with the "Final Construction Plans".
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 ensure 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.
(d) Concrete Trucks and Wash Water from Construction Materials and Vehicles:
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 -
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
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 a metal trash dumpster 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.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
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Section 7. Discharges to impaired waters, surface waters within an applicable TMDL
wasteload allocation, and exceptional waters.
Name of Receiving Waters:
North Fork Hardware River, JM46 (020802031201)
Measures for applicable TMDL:
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 LB.4) and SWPPP
requirements (Part H A.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 00management 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
stone 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.
**Factsheets can be found in Section 13. Additional Information and Logs**
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 8. Qualified personnel
The following personnel are responsible for inspections;
Roudabush, Gale & Associates Inc. is responsible for the assisting the facility in developing, implementing,
maintaining, inspecting and revising the facility's SWPPP. Below are the qualified personnel for the site;
Kent Raine ESIN2027 kraine@roudabush.com
Nicole Jamison DIN1114 njamison@roudabush.com
Tim Duncan DIN0229 tduncan@roudabush.com
All persons listed above can be contacted at 434-977-0205
SWPPP Availability:
The Stormwater 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. SWPPP mailbox found near construction entrance. Contact Roudabush,
Gale, and Associates at 434-977-0205 with questions pertaining to the SWPPP.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 9. Signed Certification
Certification according to 9VAC25-870-370
CERTIFICATION
"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 gather and evaluate 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."
Operator Name: &0k;( 1Ui%V%0MSW%
W Company: Sp•L• tI Icm5ai
Title:
Signature:
Date: 5 -3 -2022
Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 10. Delegation of authority.
Delegation of Authority
I, Blair Williamson (name), hereby designate the person or specifically described position below to be a duly
authorized representative forthe purpose of overseeing compliance with environmental requirements, including
the Construction General Permit,at the Asphalt Plant at Red Hill Ouarry construction site. The designee
is authorized to sign any reports, stormwater pollution prevention plans and all other documents required by
the peen it.
eAl ROW , N+(Af &Wi5on�Tjtn DUnwo(name of person or position)
&xi&bvak1,Gode d 85wc. Tne. (company)
941 Znd 54• SE (address)
Naool-KS-4,11t, 0 Uio2 (City, state, zip)
434- 4IT1• o2o5 (phone)
By signing this authorization, I confirm that I meet the requirements to make such a designation as set forth
in the ConstructionGeneral Permit (CGP), and that the designee above meets the definition of a "duly
authorized representative".
Operator Name: U,Ot1Mi11►[1m-sw1
Company: 5. L. W%Womw
Title:
Signature:
Date: 5.3 - 2022
Issued— 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 11. General permit copy
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
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
192TO 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 II 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.
7_1:M
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:
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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
Page 14 of 26
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 II 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;
Page 20 of 26
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 111 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 III 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.
Page 25 of 26
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.
3. 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.
Section 12. Inspection logs
Template for inspections. Requirements are listed in 9VAC25-880-70, Part II, section B and F.
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 -stone event ❑ During storm event ❑ Post -storm event
Weather Information
Has there been a storm event since the last inspection? ❑Yes ❑No
If yes, provide:
Stone 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
Correctiv
a Action
Taken
l
❑Yes ❑No
❑Yes ❑No
2
❑Yes ❑No
❑Yes ❑No
3
❑Yes ❑No
❑Yes ❑No
4
❑Yes ❑No
❑Yes ❑No
5
❑Yes ❑No
❑Yes ❑No
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
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
BMP
BMP
Installed?
BMP
Maintenance
Required?
Corrective Action Needed and Notes
Date
Correctiv
a Action
Taken
11
❑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 needed for conditions at your site.
BMP/activity
Implemented?
Maintenance
Corrective Action Needed and Notes
Required?
I
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
BMPs?
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?
8
Are washout facilities
❑Yes ❑No
❑Yes ❑No
(e.g., paint, stucco,
concrete) available,
clearly marked, and
maintained?
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
BMP/activity
Implemented?
Maintenance
Corrective Action Needed and Notes
Re aired?
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
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:
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 13. Additional Information and Logs
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Special Conditions Related to TMDL:
Fact Sheets for
Impaired (Category 4 or 5) Waters in 2020
James River Basin
Cause Group Code: H16R-01-BAC Rockfish River
Cause Location: Rockfish River from the headwaters downstream to its confluence with Davis Creek. (Start Mile: 29.14 End Mile:
23.36 Total Impaired Size: 5.78 Miles)
City / County: Nelson Co.
Use(s): Recreation
Cause(s) / VA Category: Escherichia coli (E. coli) / 4A
This segment is impaired due to exceedances of the a-coli bacteria W QS at station: 2-RKF026.42 (18 exceedances of 71
samples for a-coli) and 2BRKFO23-61 (5 exceedances of 11 samples for e-coli.). Initial Listing Date: 2006. This segment is
included in the EPA Approved Rockfish River Bacteria TMDL Federal TMDL ID # 50828
Cycle TMDL
Cause First Dev. Water
Assessment Unit / Water Name / Location Desc. Category Cause Name Listed Priority Size
VAV-H16R_RKF02A00 / Rockfish River / Rockfish River from the 4A Escherichia coli (E. coli) 2006 L 5.77
headwaters downstream to its confluence with Davis Creek.
Rockfish River Estuary Reservoir River
Recreation (Sq. Miles) (Acres) (Miles)
Escherichia coli (E. coli) - Total Impaired Size by Water Type: 5.77
Sources:
Agriculture Non -Point Source Wildlife Other than
Waterfowl
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Grading and Stabilization Activities Log
Project Name: Asphalt Plant at Red Hill Quarry
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
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
SWPPP Amendment Log
Project Name: Asphalt Plant at Red Hill Quarry
SWPPP Contact:
Amendment
No.
Description of the Amendment
Date of Amendment
Amendment
Prepared by
[Name(s) and Title]
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Pollution Prevention Plan Training Lot
Date Parties in Attendance Pollution Prevention Items
Discussed
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Procedure for Spills of Non -Reportable Quantities
Most spills can be cleaned up following manufacturer specifications. Absorbent/oil dry, sealable containers, plastic bag and
shovels/brooms are suggested minimum spill response items that should be available at this location.
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 material)
7) If spill material has entered a storm sewer; contact locality's storm sewer water department and locality's VSMP
inspector.
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.
Project Type and Location:
Date/Time of Spill:
Spill Location and Events leading to Spill:
Material Spilled:
Source of Spill:
Amount Spilled:
Surface Area of Impacted Media in Sq. ft.:
Type of Media (Soil or Pavement):
Corrective Action Taken:
Spill Report Form
Time Incident Contained:
Amount Spilled to Waterway:
Action Taken to Prevent Future Spills:
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Agencies Notified:
Modifications of Storm Water Pollution Prevention Plan:
"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."
Print Name/Title of Reporter:
Signature:
Date:
Company:
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County