HomeMy WebLinkAboutWPO201400063 Plan - Stormwater 2014-07-07Storrawater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
Stormwater Pollution Prevention Plan
For:
New Hope Church
West of Route 29 and north of
The intersection of Dickerson
Lane and Dickerson Road
Charlottesville, VA 22911
434 - 962 -7285
Owner(s):
New Hope Community Church
Mr. Michael Henderson
3445 Seminole Trail
Charlottesville, VA 22911
434 - 962 -7285
SWPPP Preparation Date:
August 26, 2013
Revised: 7/14/2014
Estimated Project Dates:
Project Start Date: August 29, 2013
Project Completion Date: August 29, 2015
Prepared by Blackwell Engineering, PLC i
Storrawater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
Contents
SECTION 1: SITE EVALUATION, ASSESSMENT, AND PLANNING ......................... ..............................1
1.1
Project /Site Information ....................................................................... ...............................
1
1.2
Contact Information/Responsable Parties ............................................ ...............................
1
1.3
Nature and Sequence of Construction Activity ................................... ...............................
3
1.4
Soils, Slopes, Vegetation, and Current Drainage Patterns ................... ...............................
3
1.5
Construction Site Estimates ................................................................. ...............................
5
1.6
Receiving Waters ................................................................................. ...............................
5
1.7
Site Features and Sensitive Areas to be Protected ............................... ...............................
6
1.8
Potential Sources of Pollution .............................................................. ...............................
6
1.9
Endangered Species Certification ........................................................ ...............................
8
1.10
Historic Preservation ............................................................................ ...............................
9
1.11
Maps ................................................................................................... ...............................
10
SECTION 2: EROSION AND SEDIMENT CONTROL BMPS ..................................... .............................11
2.1
Minimize Disturbed Area and Protect Natural Features and Soil ...... ...............................
11
2.2
Phase Construction Activity .............................................................. ...............................
12
2.3
Control Stormwater Flowing onto and through the Project ............... ...............................
12
2.4
Stabilize Soils ....................................................................................... .............................12
2.5
Protect Slopes ..................................................................................... ...............................
15
2.6
Protect Storm Drain Inlets ................................................................. ...............................
18
2.7
Establish Perimeter Controls and Sediment Barriers ......................... ...............................
19
2.8
Retain Sediment On- Site .................................................................... ...............................
20
2.9
Establish Stabilized Construction Exits ............................................. ...............................
22
3.1
Material Handling and Waste Management ...................................... ...............................
24
3.2
Establish Proper Building Material Staging Areas ............................ ...............................
27
3.3
Designate Washout Areas .................................................................. ...............................
28
3.4
Establish Proper Equipment/Vehicle Fueling and Maintenance Practices .......................
29
3.5
Control Equipment/Vehicle Washing ................................................ ...............................
30
3.6
Spill Prevention and Control Plan ...................................................... ...............................
30
3.7
Any Additional BMPs ........................................................................ ...............................
31
3.8
Allowable Non - Stormwater Discharge Management ........................ ...............................
32
SECTION 4: FINAL STABLIZATION AND POST- CONSTRUCTION BMPs ............. ...............................
33
SECTION5: INSPECTIONS ................................................................................... .............................36
5.1
Inspections ......................................................................................... ...............................
36
5.2
Delegation of Authority ..................................................................... ...............................
37
5.3
Corrective Action Log ....................................................................... ...............................
37
SECTION 6: RECORDKEEPING AND TRAINING ................................................. ...............................
38
6.1
Recordkeeping ................................................................................... ...............................
38
6.2
Log of Changes to the SWPPP .......................................................... ...............................
38
Prepared by Blackwell Engineering, PLC 11
Stormwater Pollution Prevention Plan (SWPPP)
New Rope Church j August 26, 2013
SWPPP Appendices
Appendix A ..........................
...................................................... ... General Location Map/Drawing
Vicinity Map
Aerial Photograph
Terrain Map
Appendix B .................................
............................... ........................ General Permit No.: DCROI
Appendix C .....................
....................................... VSMP General Permit Registration Statement
Acknowledgement letter from DCR
Appendix D ...........................
.................................................... ...... ..................... Inspection Report
Appendix E ....................................................................
............................... Corrective Action Log
Appendix F ................................................................
............................... SWPPP Amendment Log
Appendix G ......................................
............................... Subcontractor Certifications/Agreements
Appendix H... .................................................
Grading and Stabilization Activities Log
Appendix I .........................................................
............................... Delegation of Authority Form
Appendix 7 ...........................................................
............................... Change of Ownership Letter
'rermination Notice
Appendix K. ..........................................................
Endangered Species List for Albemarle County
Idistoric Preservation Documentation for Albemarle County
Contact List (DCR, ESC, DEQ)
When to Report a Spill
AppendixI, ......................
...................................... ............................... ............................ ESC Plan
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Storrawater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
SECTION 1: SITE EVALUATION, ASSESSMENT, AND PLANNING
1.1 ProjectlSite Information
Project /Site Name: New Hope Church
Project Street/Location: The site is located in Albemarle County, west of Route 29 and north of
the intersection of Dickerson Lane and Dickerson Road
City: Charlottesville State: VA ZIP Code: 22911
County or Similar Subdivision: Albemarle
Latitude/Longitude
Latitude: Longitude:
38 ° 10' 28"N 78 ° 24' 47" W
Method for determining latitude /longitude:
❑ USGS topographic map (specify scale: ) ❑ EPA Web site ❑ GPS
® Other (please specify): http: / /terraserver- usa.com
Is the project located in Indian country? ❑ Yes ® No
If yes, name of Reservation, or if not part of a Reservation, indicate "not applicable." N/A
Is this project considered a federal facility? ❑ Yes ® No
NPDES project or permit tracking number*: N/A
*(This is the unique identifying number assigned to your project by your permitting authority after you have applied
for coverage under the appropriate National Pollutant Discharge Elimination System (NPDES) construction general
permit.)
1.2 Contact Information /Responsable Parties
Instructions:
— List the operator(s), project managers, stormwater contact(s), and person or organization that prepared the
SWPPP. Indicate respective responsibilities, where appropriate.
— Also, list subcontractors expected to work on -site. Notify subcontractors of stormwater requirements
applicable to their work
Prepared by Blackwell Engineering, PLC
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
Owner(s):
New Hope Community Church
Mr. Michael Henderson
3445 Seminole Trail
Charlottesville, VA 22911
434 - 962 -7285
Contractor(s):
Company Name:
Contact:
Address:
Cit, State, Zip:
Telephone:
Fax:
Company Name:
Contact:
Address:
Cit, State, Zip:
Telephone:
Fax:
Sub - Contractor(s):
Company Name:
Contact:
Address:
Cit, State, Zip:
Telephone:
Fax:
This SWPPP Was Prepared By:
Blackwell Engineering
566 East Market Street
Harrisonburg, VA 22801
P 540- 432 -9555
F 540- 434 -7604
BE Job# 2167
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Storrawater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
1.3 Nature and Sequence of Construction Activity
Instructions:
— Briefly describe the nature of the construction activity and approximate time frames (one or more
paragraphs, depending on the nature and complexity of the project).
The purpose of this project is the mass grading for all phases of construction of the New Hope Church,
entrance drive, parking lot and building for Phase 1.
What is the function of the construction activity?
❑ Residential ❑ Commercial ❑ Industrial ❑ Road Construction ❑ Linear Utility
® Other (please specify): Church
Estimated Project Start Date: August 29, 2013
Estimated Project Completion Date: August 29, 2015
1.4 Soils, Slopes, Vegetation, and Current Drainage Patterns
Instructions:
— Describe the existing soil conditions at the construction site including soil types, slopes and slope lengths,
drainage patterns, and other topographic features that might affect erosion and sediment control.
— Also, note any historic site contamination evident from existing site features and known past usage of the
site.
— This information should also be included on your site maps.
Soil type(s):
47C— Louisburg sandy loam, 7 to 15 percent slopes
Map Unit Composition
Louisburg and similar soils: 75 percent
Properties and qualities
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Capacity of the most limiting layer to transmit water (Ksat): High to very high (5.95 to 19.98
in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water capacity: Moderate (about 6.6 inches)
Interpretive groups
Hydrologic Soil Group: B
Typical profile
Prepared by Blackwell Engineering, PLC
Storrawater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
0 to 5 inches: Sandy loam Kw=0.24 T =3
5 to 79 inches: Sandy loam Kw--0.24
65C— Pacolet sandy loam, 7 to 15 percent slopes
Map Unit Composition
Pacolet and similar soils: 80 percent
Properties and qualities
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Capacity of the most limiting layer to transmit water (Ksat)
in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water capacity: Moderate (about 7.6 inches)
Interpretive groups
Hydrologic Soil Group: B
Typical profile
0 to 6 inches: Sandy loam Kw--0.20 T =3
6 to 32 inches: Clay Kw--0.28
32 to 79 inches: Sandy clay loam Kw--0.28
94C— Wedowee sandy loam, 7 to 15 percent slopes
Map Unit Composition
Wedowee and similar soils: 80 percent
Properties and qualities
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Capacity of the most limiting layer to transmit water (Ksat):
in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water capacity: Moderate (about 8.0 inches)
Interpretive groups
Hydrologic Soil Group: B
Typical profile
0 to 7 inches: Sandy loam Kw--0.24 T =3
7 to 11 inches: Sandy clay loam Kw--0.28
11 to 30 inches: Clay Kw =0.28
30 to 60 inches: Sandy clay loam Kw--0.28
Moderately high to high (0.57 to 1.98
Moderately high to high (0.57 to 1.98
Slopes (describe current slopes and note any changes due to grading or fill activities):
The land slopes to both the east and west at slopes ranging from 5% to 20% from a ridgeline that runs
through the middle of the site.
Prepared by Blackwell Engineering, PLC 4
Stonnwater Pollution Prevention Plan ( SWPPP)
New Hope Church I August 26, 2013
1.5 Construction Site Estimates
Instructions:
— Estimate the area to be disturbed by excavation, grading, or other construction activities, including
dedicated off -site borrow and fill areas.
— Calculate the percentage of impervious surface area before and after construction
— Calculate the runoff coefficients before and after construction.
The following are estimates of the construction site:
Total project area:
Construction site area to be disturbed:
Percentage impervious area before construction:
Runoff coefficient before construction:
Percentage impervious area after construction:
Runoff coefficient after construction:
21.0 ± acres
3.8 ± acres
0%
.4
3.8%
.42
Please Refer to Appendix L for the Erosion & Sediment Narrative and Calculations
1.6 Receiving Waters
Instructions:
— List the waterbody(s) that would receive stormwater from your site, including streams, rivers, lakes, coastal
waters, and wetlands.
Indicate the location of all waters, including wetlands, on the site map.
Note any stream crossings, if applicable.
— List the storm sewer system or drainage system that stormwater from your site could discharge to and the
waterbody(s) that it ultimately discharges to.
— If any of the waterbodies above are impaired and/or subject to Total Maximum Daily Loads (TMDLs),
please list the pollutants causing the impairment and any specific requirements in the TMDL(s) that are
applicable to construction sites. Your SWPPP should specifically include measures to prevent the
discharge of these pollutants.
— Also, for more information and a list of TMDL contacts and links by state, visit
www.epa.gov/npdes/stormwater/tmd].
Description of receiving waters: Herring Branch, Rivanna River North Fork, James River
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Storrawater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
Impaired Waters: James River: Dissolved oxygen, mercury in fish, chlordane, DDE, DDT, estuarine
bioassessments, PCB, enterococcus, E. Coli.
Stormwater Management:
Two underground detention piping systems are proposed and shown on the plans. The outlet for
facility #1 discharges into proposed Ditch #3 flowing south to Dickerson Road, thence southwest to the
existing culvert in Piney Mountain Road. The outlet for facility #2 discharges into the existing
roadside ditch and culvert near the intersection of Dickerson Road and Dickerson Lane. The water
quality requirements for the site are provided by a bio- retention basin at the outlet of facility #1. Long
term maintenance of the detention and water quality facilities and outlet system shall be the
responsibility of the property owner. This maintenance shall include periodic inspection, removing
sediment buildup, cleaning of outlet pipe system of sedimentation and debris, and replacing dead trees
and shrubs.
Stormwater Runoff at Piney
Mountain Road
Pre - construction: Q2 =
0.69 cfs
Qio =
3.20 cfs
(Hydrograph 1)
Post - construction: Q2 =
0.62 cfs
Qio =
2.87 cfs
(Hydrograph 7)
Stormwater Runoff at Route 606
Pre - construction: Q2 =
0.32 cfs
Qio =
1.05 cfs
(Hydrograph 10)
Post - construction: Q2 =
0.36 cfs
Qio =
0.76 cfs
(Hydrograph 14)
See Pre- and Post - construction
runoff calculations and underground detention routing.
Please refer to Appendix K for more information about the South Fork Shenandoah
1.7 Site Features and Sensitive Areas to be Protected
Instructions:
— Describe unique site features including streams, stream buffers, wetlands, specimen trees, natural
vegetation, steep slopes, or highly erodible soils that are to be preserved.
— Describe measures to protect these features.
— Include these features and areas on your site maps.
The areas of critical slopes greater than 25% are identified by shading and labeling on the site plan. A
small area of critical slopes is effected by grading for the drive entrance to the site.
1.8 Potential Sources of Pollution
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Storrawater Pollution Prevention Plan (SwPPP)
New Hope Church I August 26, 2013
Instructions:
— Identify and list all potential sources of sediment, which may reasonably be expected to affect the quality of
stormwater discharges from the construction site.
— Identify and list all potential sources of pollution, other than sediment, which may reasonably be expected
to affect the quality of stormwater discharges from the construction site.
Potential pollutants and sources, including sediment, to stormwater runoff:
• Clearing, grading, excavating and unstabilized areas
• Paving operations
• Concrete washout and waste
• Structure construction, painting and cleaning
• Demolition and debris disposal
• Dewatering operations
• Drilling and blasting operations
• Material delivery and storage
• Material use during building process
• Solid waste (trash and debris)
• Hazardous waste
• Contaminated spills
• Sanitary and septic waste
• Vehicle /equipment fueling and maintenance
• Vehicle /equipment use and storage
• Landscaping operations
Prepared by Blackwell Engineering, PLC 7
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
1.9 Endangered Species Certification
Instructions:
— Check endangered species by county at hftp://www.fws.gov/northeasVvirginiafield/County Lists.html
— If a non - insect animal may occur in your project area, you should coordinate with the Virginia Department
of Game and Inland Fisheries. If a plant or an insect may occur in your project area, you should coordinate
with the Virginia Department of Conservation and Recreation, Division of Natural Heritage. The state
agencies listed below will review their databases (they have separate databases, so you should check with
both agencies).
VA Dept of Game and Inland Fisheries
Environmental Services Section
P.O. Box 11104
Richmond, VA 23230
(804) 367 -1000
VA Dept of Conservation and Recreation
Division of Natural Heritage
217 Governor St., 2nd Floor
Richmond, VA 23219
(804)786 -7951
Are endangered or threatened species and critical habitats on or near the project area?
❑ Yes ❑ No ® Undetermined
Describe how this determination was made:
The determination that these species are on or near the site cannot be documented and is
therefore undetermined.
The following describe the species and /or critical habitat in Albemarle County:
Species that may be affected by your project:
Clams
Status
Species
Profile
Contact
Dwarf wedgemussel
Endangered 460
species info
Virginia Ecological Services Field Office
(Alasmidonta
heterodon)
Population: Entire
James spinymussel
Endangered 6
species in
Virginia Ecological Services Field Office
(Pleurobema collina)
Population: Entire
Flowering Plants
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Stormwater Pollution Prevention Plan (SWPPP)
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Northeastern bulrush
Endangered Co
species info
Virginia Ecological Services Field Office
' (Scirpus
ancistrochaetus)
Small Whorled
pogonia (Isotria
Threatened CO
species info
Virginia Ecological Services Field Office
medeoloides)
Smooth coneflower
Endangered 6
species info
Virginia Ecological Services Field Office
(Echinacea laevigata)
i
Swamp pink (Helonias
Threatened 0
species info
Virginia Ecological Services Field Office
bullata)
Source: http: / /www.fws.gov /northeast /virginiafield/
(Note, if species are on or near your project site, EPA strongly recommends that the site
operator work closely with the appropriate field office of the U.S. Fish and Wildlife Service or
National Marine Fisheries Service. For concerns related to state or tribal listing of species,
please contact a state or tribal official.)
1.10 Historic Preservation
Instructions:
— Check by county for historical registries http: / /www.dhr.viCginia.gov /registers /register counties cities.htm
— Northern Regional Preservation Office
Serving the Shenandoah Valley and Northern Virginia
P.O. Box 519
(for deliveries: 5357 Main Street)
Stephens City, VA 22655
— Phone: (540) 868 -7030
Fax: (540) 868 -7033
Are there any historic sites on or near the construction site?
❑ Yes ® No
Describe how this determination was made:
http: / /www. dhr.virginia. gov/ registers / Counties /register_Albemarle.htm
Prepared by Blackwell Engineering, PLC 9
Storrawater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
1. 11 Maps
Instructions:
— Attach site maps. For most projects, a series of site maps is recommended. The first should show the
undeveloped site and its current features. An additional map or maps should be created to show the
developed site or for more complicated sites show the major phases of development.
These maps should include the following:
— Direction(s) of stormwater flow and approximate slopes before and after major grading activities;
— Areas and timing of soil disturbance;
— Areas that will not be disturbed;
— Natural features to be preserved;
— Locations of major structural and non - structural BMPs identified in the SWPPP;
— Locations and timing of stabilization measures;
— Locations of off -site material, waste, borrow, or equipment storage areas;
— Locations of all waters of the United States, including wetlands;
— Locations where stormwater discharges to a surface water;
— Locations of storm drain inlets; and
— Areas where final stabilization has been accomplished.
See Appendix A for a copy of the Erosion and Sediment Control map, vicinity map, aerial
photograph and a USGS topographic map or terrain map.
Prepared by Blackwell Engineering, PLC 10
Storrawater Pollution Prevention Plan ( SWPPP)
New Hope Church I August 26, 2013
SECTION 2: EROSION AND SEDIMENT CONTROL BMPS
Instructions:
— Describe the BMPs that will be implemented to control pollutants in stormwater discharges. For each
major activity identified, do the following
✓ Clearly describe appropriate control measures.
✓ Describe the general sequence during the construction process in which the measures will be
implemented.
✓ Describe the maintenance and inspection procedures that will be used for that specific BMP.
✓ Include protocols, thresholds, and schedules for cleaning, repairing, or replacing damaged or failing
BMPs.
✓ Identify staff responsible for maintaining BMPs.
✓ (If your SWPPP is shared by multiple operators, indicate the operator responsible for each BMP.)
— Categorize each BMP under one of the following 10 areas of BMP activity as described below:
2.1 Minimize disturbed area and protect natural features and soil
2.2 Phase Construction Activity
2.3 Control Stormwater flowing onto and through the project
2.4 Stabilize Soils
2.5 Protect Slopes
2.6 Protect Storm Drain Inlets
2.7 Establish Perimeter Controls and Sediment Barriers
2.8 Retain Sediment On -Site and Control Dewatering Practices
2.9 Establish Stabilized Construction Exits
2.10 Any Additional BMPs
— Note the location of each BMP on your site map(s).
— For any structural BMPs, you should provide design specifications and details and refer to them.
2.1 Minimize Disturbed Area and Protect Natural Features and Soil
Instructions:
N/A
— Describe the areas that will be disturbed with each phase of construction and the methods (e.g., signs,
fences) that you will use to protect those areas that should not be disturbed. Describe natural features
identified earlier and how each will be protected during construction activity. Also describe how topsoil will
be preserved. Include these areas and associated BMPs on your site map(s) also.
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New Hope Church -1 August 26, 2013
2.2 Phase Construction Activity
Instructions:
— Describe the intended construction sequencing and timing of major activities, including any opportunities
for phasing grading and stabilization activities to minimize the overall amount of disturbed soil that will be
subject to potential erosion at one time. Also, describe opportunities for timing grading and stabilization so
that all or a majority of the soil disturbance occurs during a time of year with less erosion potential (i.e.,
during the dry or less windy season). (For more information, see SWPPP Guide, Chapter 4, ESC Principle
2.) It might be useful to develop a separate, detailed site map for each phase of construction.
N/A
2.3 Control Stormwater Flowing onto and through the Project
Instructions:
— Describe structural practices (e.g., diversions, berms, ditches, storage basins) including design
specifications and details used to divert flows from exposed soils, retain or detain flows, or otherwise limit
runoff and the discharge of pollutants from exposed areas of the site.
BMP Description: Outlet Protection
Structurally lined aprons or other acceptable energy dissipating devices placed at the outlets of
pipes or paved channel sections used to prevent scour at stormwater outlets, to protect the outlet
structure, and to minimize the potential for downstream erosion by reducing the velocity and
energy of concentrated stormwater flows. Applicable to the outlets of all pipes and engineered
channel sections. The structurally lined aprons at the outlets of pipes and paved channel sections
shall be constructed as shown on the plans.
Installation Schedule:
Maintenance and
Inspection: The lined apron at the outlets of pipes and paved channel sections
shall be inspected weekly and/or after each rainfall to ensure the
allowance of continuous and uninhibited water flow. If the outlet
is blocked, the debris shall be removed.
Responsible Staff.
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New Hope Church I August 26, 2013
BMPDescription: Temporary Diversion Dike
An earthen perimeter control usually consists of a dike or a combination dike and channel
constructed along the perimeter of and within the disturbed part of a site. An earthen perimeter
control is a ridge of compacted soil, often accompanied by a ditch or swale with a vegetated
lining, at the top or base of a sloping disturbed area. Depending on its location and the
topography of the landscape, an earthen perimeter control can achieve one of two goals.
When on the upslope side of a site, earthen perimeter controls help to prevent surface runoff
from entering a disturbed construction site. An earthen structure located upslope can improve
working conditions on a construction site. It can prevent an increase in the total amount of sheet
flow runoff traveling across the disturbed area and thereby lessen erosion on the site.
Earthen perimeter control structures also can be located on the downslope side of a site. They
divert sediment -laden runoff created onsite to onsite sediment - trapping devices, preventing soil
loss from the disturbed area.
These control practices are called temporary diversion dikes, earth dikes, and interceptor dikes.
No matter what they are called„ all earthen perimeter controls are constructed in a similar way
with a similar objective - -to control the velocity or route (or both) of sediment -laden stormwater
runoff.
Installation Schedule:
Maintenance and
Inspection:
Staff:
Inspect earthen diversion dikes after each rainfall to ensure
continued effectiveness. Maintain dikes at their original height.
Repair any decrease in height due to settling or erosion
immediately. To remain effective, earth dikes must be compacted
at all times. Regardless of rainfall frequency, inspect dikes at least
once every 2 weeks for evidence of erosion or deterioration.
BMPDescription: Paved Flume
A permanent paved channel constructed on a slope used to conduct stormwater runoff safely
down the face of a slope without causing erosion problems on or below the slope. Applicable
wherever concentrated stormwater runoff must be conveyed from the top to the bottom of cut or
fill slopes on a permanent basis and a riprap -lined channel is not capable of conveying the runoff
without erosion. The paved flume shall be constructed as shown on the plans.
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Installation Schedule:
Maintenance and
Inspection: Prior to permanent stabilization of the slope, the structure should
be inspected after each rainfall. Damages to the slope, flume or
outlet area must be repaired immediately. After the slope is
stabilized, the structure should be inspected to ensure continued
adequate functioning.
Responsible Staff:
2.4 Stabilize Soils
Instructions:
— Describe controls (e.g., interim seeding with native vegetation, hydroseeding) to stabilize exposed soils
where construction activities have temporarily or permanently ceased. Also describe measures to control
dust generation. Avoid using impervious surfaces for stabilization whenever possible.
BMP Description: Temporary Seeding
The establishment of a temporary vegetative cover on disturbed areas by seeding with
appropriate rapidly growing annual plants used to reduce erosion and damage from sediment
runoff. Applicable where exposed soil surfaces are not to be fine - graded for periods longer than
30 days. Such areas include denuded areas, soil stockpiles, dikes, damn, sides of sediment
basins, temporary road banks, etc. A permanent vegetative cover shall be applied to areas that
will be left dormant for a period of more than a year. The seeding shall be used as shown on the
plans.
❑ Permanent ® Temporary
Installation Schedule:
Maintenance and
Inspection: The seeding shall be inspected each week or after each rainfall to
make sure that erosion is not occurring. The plants shall be
watered daily and mowed frequently unless otherwise directed.
Responsible Staff.
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Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
BMP Description: Permanent Seeding
The establishment of perennial vegetative cover on disturbed areas by planting seed used to:
Reduce erosion and decrease sediment yield from disturbed areas.
2. Permanently stabilize disturbed areas in a manner that is economical, adaptable to site
conditions, and allows selection of the most appropriate plant materials.
3. Improve wildlife habitat.
4. Enhance natural beauty.
Applicable where:
1. Disturbed areas where permanent, long -lived vegetative cover is needed to stabilize the
soil.
2. Rough - graded areas which will not be brought to final grade for a year or more.
® Permanent ❑ Temporary
Installation Schedule:
Maintenance and
Inspection:
High maintenance areas will be mowed frequently, limed and
fertilized frequently and either receive intense use or require
maintaining to an aesthetic standard. Grasses used for these
situations must be fine - leaved and attractive in appearance, able
to form fight sod, and be long -lived perennials. They must be
well- adapted to the geographic area where they are planted,
because constant mowing puts turf under great stress.
Low maintenance areas will be mowed infrequently or not a all;
lime and fertilizer may not be applied on a regular basis; the areas
will not be subjected to intense use, nor required to have a
uniform appearance. These plants must be able to persists with
little maintenance over long periods of time.
Prepared by Blackwell Engineering, PLC 15
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
BMP Description: Mulching
Application of plant residues or other suitable materials to the soil surface used:
1. To prevent erosion by protecting the soil surface from raindrop impact and reducing the
velocity of overland flow.
2. To foster the growth of vegetation by increasing available moisture and providing
insulation against extreme heat and cold.
Applicable:
1. Areas which have been permanently seeded should be mulched immediately following
seeding.
2. Areas which cannot be seeded because of the season should be mulched to provide some
protection to the soil surface. Organic mulch should be used, and the area then seeded as
soon weather or seasonal conditions permit. It is not recommended that fiber mulch be
used alone for this practice; at normal application rates it just simply does not provide the
protection that is achieved using other types of mulch.
3. Mulch may be used together with plantings of trees, shrubs, or certain ground covers
which do not provide adequate soil stabilization by themselves.
4. Mulch shall be used in conjunction with temporary seeding operations.
® Permanent ❑ Temporary
Installation Schedule:
Maintenance and
Inspection:
Responsible Staff.
All mulches and soil coverings should be inspected periodically
(particularly after rainstorms) to check for erosion. Where
erosion is observed in mulched areas, additional mulch should be
applied. Nets and mats should be inspected after rainstorms for
dislocation or failure. If washouts or breakage occur, re- install
netting or matting as necessary after repairing damage to the slope
or ditch. Inspections would take place up until grasses are firmly
established. Where mulch is used in conjunction with ornamental
plantings, inspect periodically throughout the year to determine if
mulch if maintaining coverage of the soil surface; repair as
needed.
Prepared by Blackwell Engineering, PLC 16
Storruwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
BMPDescription: Topsoiling
Methods of preserving and using the surface layer of undisturbed soil often enriched in organic
matter, in order to obtain a more desirable planting and growth medium.
Applicable where:
1. The preservation or importation of topsoil is determined to be the most effective method
of providing a suitable growth medium.
2. The subsoil or existing soil presents the following problems:
a. The texture, pH, or nutrient balance of the available soil cannot be modified by
reasonable means to provide an adequate growth medium.
b. The soil material is too shallow to provide an adequate root zone and to supply
necessary moisture and nutrients for plant growth.
c. The soil contains substances potentially toxic to plant growth.
3. High - quality turf is desirable to withstand intense use or meet aesthetic requirements.
4. Ornamental plants will be established.
5. Only on slopes that are 2:1 or flatter unless other measures are taken to prevent erosion
and sloughing.
The topsoil will be used as shown on the plans.
® Permanent ❑ Temporary
Installation Schedule:
Maintenance and
Inspection: The topsoil shall be inspected after every rainfall or at least once a
week to ensure the surface layer of the soil is being preserved. If
this method is ineffective, another measure shall be taken.
Responsible Staff.•
2.5 Protect Slopes
Instructions:
— Describe controls (e.g., erosion control blankets, tackifiers) including design specifications and details that
will be implemented to protect all slopes
WD,
Prepared by Blackwell Engineering, PLC 17
Storrawater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
2.6 Protect Storm Drain Inlets
Instructions:
— Describe controls (e.g., inserts, rock - filled bags, or block and gravel) including design specifications and
details that will be implemented to protect all inlets receiving stormwater from the project during the entire
project.
BMP Description: Culvert Inlet Protection
A sediment filter located at the inlet to storm sewer culverts. Used to:
1. To prevent sediment from entering, accumulating in and being transferred by a culvert
and associated drainage system prior to permanent stabilization of a disturbed project
area.
2. To provide erosion control at culvert inlets during the phase of a project where elevation
and drainage patterns change, causing original control measures to be ineffective or in
need of removal.
Applicable where culvert and associated drainage system is to be made operational prior to
permanent stabilization of the disturbed drainage area. Different types of structures are
applicable to different conditions.
Installation Schedule:
Maintenance and
Inspection:
1. The structure shall be inspected after each rain and repairs
made as needed.
2. Aggregate shall be replaced or cleaned when inspection
reveals that clogged voids are causing ponding problems
which interfere with on -site construction.
3. Sediment shall be removed and the impoundment restored
to its original dimensions when sediment has accumulated
to one -half the design depth. Removed sediment shall be
deposited in a suitable area and in such a manner that it
will not erode and cause sedimentation problems.
4. Temporary structures shall be removed when they have
served their useful purpose, but not before the up slope
area has been permanently stabilized.
Prepared by Blackwell Engineering, PLC 18
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
Responsible Staff.•
BMP Description: Storm Drain Inlet Protection
A sediment filter or an excavated impounding area around a storm drain drop inlet or curb inlet
used to prevent sediment from entering storm drainage systems prior to permanent stabilization
of the disturbed area. Applicable where storm drain inlets are to be made operational before
permanent stabilization of the corresponding disturbed drainage area. Different types of
structures are applicable to different conditions.
Installation Schedule:
Maintenance and
Inspection:
1. The structure shall be inspected after each rain and repairs
made as needed.
2. Sediment shall be removed and the trap restored to its
original dimensions when the sediment has accumulated
to one half the design depth of the trap. Removed
sediment shall be deposited in a suitable area and in such a
manner that it will not erode.
3. Structures shall be removed and the area stabilized when
the remaining drainage area has been properly stabilized.
Responsible Staff.
2.7 Establish Perimeter Controls and Sediment Barriers
BMP Description: Silt Fence
A temporary sediment barrier consisting of a synthetic filter fabric stretched across and attached
to supporting posts and entrenched used to:
1. To intercept and detain small amounts of sediment from disturbed areas during
construction operations in order to prevent sediment from leaving the site.
Prepared by Blackwell Engineering, PLC 19
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
2. To decrease the velocity of sheet flows and low -to- moderate level channel flows.
Applicable:
1. Below disturbed areas where erosion would occur in the form of sheet and rill erosion.
2. Where the size of the drainage area is no more than one quarter acre per 100 feet of silt
fence length; the maximum slope length behind the barrier is 100 feet; and the maximum
gradient behind the barrier is 50 percent (2:1).
3. In minor swales or ditch lines where the maximum contributing drainage area is no
greater than 1 acre and flow is no greater than 1 cfs.
4. Silt fence will not be used in areas where rock or some other hard surface prevents the
full and uniform depth anchoring of the barrier.
Installation Schedule:
Maintenance and
Inspection:
1. Silt fences shall be inspected immediately after each
rainfall and at least daily during prolonged rainfall. Any
required repairs shall be made immediately.
2. Close attention shall be paid to the repair of damaged silt
fence resulting from end runs and undercutting.
3. 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.
4. Sediment deposits should be removed after each storm
event. They must be removed when deposits reach
approximately one -half the height of the barrier.
5. 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.
2.8 Retain Sediment On -Site
Instructions:
— Describe sediment control practices (e.g., sediment trap or sediment basin), including design
specifications and details (volume, dimensions, outlet structure) that will be implemented at the
construction site to retain sediments on -site.
Prepared by Blackwell Engineering, PLC 20
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
BMP Description: Rock Check Dams
Small temporary stone dams constructed across a swale or drainage ditch used to reduce the
velocity of concentrated stormwater flows, thereby reducing erosion of the swale or ditch. This
practice also traps sediment generated from adjacent areas or the ditch itself, mainly by ponding
of the stormwater runoff. Field experience has shown it to perform more effectively than silt
fence or straw bales in the effort to stabilize `wet- weather" ditches.
Conditions Where Practice Applies
This practice, utilizing a combination of stone sizes, is limited to use in small open channels
which drain 10 acres or less. It should not be used in a live stream as the objective should be to
protect the live watercourse. Some specific applications include:
1. Temporary ditches or swales which, because of their short length of service, cannot
receive a non - erodible lining but still need protection to reduce erosion.
2. Permanent ditches or swales which, for some reason, cannot receive a permanent non-
erodible lining for an extended period of time.
3. Either temporary or permanent ditches or swales which need protection during the
establishment of grass linings.
4. An aid in the sediment trapping strategy for a construction site. This practice is not a
substitute for major perimeter trapping measures such as a SEDIMENT TRAP or a
SEDIMENT BASIN.
Installation Schedule:
Maintenance and
Inspection:
Responsible Staff.•
Check dams should be checked for sediment accumulation after
each runoff - producing storm event. Sediment should be removed
when it reaches one half of the original height of the measure.
Regular inspections should be made to insure that the center of
the dam is lower than the edges. Erosion caused by high flows
around the edges of the dam should be corrected immediately.
BMP Description: Temporary Sediment Trap
A temporary ponding area formed by constructing an earthen embankment with a stone outlet
used to detain sediment -laden runoff from small disturbed areas long enough to allow the
Prepared by Blackwell Engineering, PLC 21
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
majority of the sediment to settle out. Applicable:
1. Below disturbed areas where the total contributing drainage area is less than 3 acres.
2. Where the sediment trap will be used no longer than 18 months (the maximum useful life
is 18 months).
3. The sediment trap may be constructed either independently or in conjunction with a
TEMPORARY DIVERSION DIKE.
Installation Schedule:
Maintenance and
Inspection:
R
1. Sediment shall be removed and the trap restored to its
original dimensions when the sediment has accumulated
to one half the design volume of the wet storage. Sediment
removal from the basin shall be deposited in a suitable
area and in such a manner that it will not erode and cause
sedimentation problems.
2. Filter stone shall be regularly checked to ensure that
filtration performance is maintained. Stone choked with
sediment shall be removed and cleaned or replaced.
3. The structure should be checked regularly to ensure that it
is structurally sound and has not been damaged by erosion
or construction equipment. The height of the stone outlet
should be checked to ensure that its center is at least 1 foot
below the top of the embankment.
2.9 Establish Stabilized Construction Exits
Instructions:
— Describe location(s) of vehicle entrance(s) and exit(s), procedures to remove accumulated sediment off-
site (e.g., vehicle tracking), and stabilization practices (e.g., stone pads or wash racks or both) to minimize
off -site vehicle tracking of sediments and discharges to stormwater.
BMP Description: Construction Entrance /Exit
A stabilized stone pad with a filter fabric underliner located at points of vehicular ingress and
egress on a construction site used to reduce the amount of mud transported onto paved public
roads by motor vehicles or runoff. Applicable wherever traffic will be leaving a construction site
Prepared by Blackwell Engineering, PLC 22
and move directly onto a public road or other paved area.
Installation Schedule:
Maintenance and
Inspection:
Responsible Stn
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
The entrance shall be maintained in a condition which will
prevent tracking or flow of mud onto public rights -of -way. This
may require periodic top dressing with additional stone or the
washing and reworking of existing stone as conditions demand
and repair and /or cleanout of any structures used to trap sediment.
All materials spilled, dropped, washed, or tracked from vehicles
onto roadways or into storm drains must be removed
immediately. The use of water trucks to remove materials
dropped, washed, or tracked onto roadways will not be permitted
under any circumstances.
BMP Description: Construction Road Stabilization
The temporary stabilization of access roads, subdivision roads, parking areas, and other onsite
vehicle transportation routes with stone immediately after grading. Used:
1. To reduce the erosion of temporary roadbeds by construction traffic during wet weather.
2. To reduce the erosion and subsequent regrading of permanent roadbeds between the time
of initial grading and final stabilization.
Applicable wherever stone -base roads or parking areas are constructed, whether permanent or
temporary, for use by construction traffic.
Installation Schedule:
Maintenance and
Inspection:
Responsible Staff.
Both temporary and permanent roads and parking areas may
require periodic top dressing with new gravel. Seeded areas
adjacent to the roads and parking areas should be checked
periodically to ensure that a vigorous stand of vegetation is
maintained. Roadside ditches and other drainage structures should
be checked regularly to ensure that they do not become clogged
with silt or other debris.
Prepared by Blackwell Engineering, PLC 23
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church ( August 26, 2013
SECTION 3: GOOD HOUSEKEEPING BMPS
Instructions:
— Describe the key good housekeeping and pollution prevention (P2) BMPs that will be implemented to
control pollutants in stormwater.
— Categorize each good housekeeping and pollution prevention (P2) BMP under one of the following seven
categories:
3.1 Material Handling and Waste Management
3.2 Establish Proper Building Material Staging Areas
3.3 Designate Washout Areas
3.4 Establish Proper EquipmenWehicle Fueling and Maintenance Practices
3.5 Allowable Non-Stormwater Discharges and Control EquipmenWehicle Washing
3.6 Spill Prevention and Control Plan
3.7 Any Additional BMPs
3.1 Material Handling and Waste Management
Instructions:
— Describe measures (e.g., trash disposal, sanitary wastes, recycling, and proper material handling) to
prevent the discharge of solid materials to receiving waters, except as authorized by a permit issued under
section 404 of the CWA
BMP Description: Hazardous Waste Materials
All hazardous waste materials such as oil filters, petroleum products, paint, and equipment
maintenance fluids will be stored in structurally sound and sealed shipping containers, within the
hazardous materials storage area. Hazardous waste materials will be stored in appropriate and
clearly marked containers and segregated from other non -waste materials. Secondary
containment will be provided for all waste materials in the hazardous materials storage area and
will consist of commercially available spill pallets. Additionally, all hazardous waste materials
will be disposed of in accordance with federal, state, and municipal regulations. Hazardous
waste materials will not be disposed of into the on -site dumpsters. All personnel will be
instructed, during tailgate training sessions, regarding proper procedures for hazardous waste
disposal. Notices that state these procedures will be posted in the office trailer and the individual
who manages day -to -day site operations will be responsible for seeing that these procedures are
followed.
Installation Schedule:
Shipping containers used to store hazardous waste materials will
be installed once the site materials storage area has been installed.
Prepared by Blackwell Engineering, PLC 24
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
Maintenance and
Inspection: The hazardous waste material storage areas will be inspected
weekly and after storm events. The storage areas will be kept
clean, well organized, and equipped with ample cleanup supplies
as appropriate for the materials being stored. Material safety data
sheets, material inventory, and emergency contact numbers will
be maintained in the office trailer.
Responsible Staff.•
BMPDescription: Recycling
Wood pallets, cardboard boxes, and other recyclable construction scraps will be disposed of in a
designated dumpster for recycling. The dumpster 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 solid recyclable construction scraps from the site will be
deposited in the dumpster. All personnel will be instructed, during tailgate training sessions,
regarding the correct procedure for disposal of recyclable construction scraps. Notices that state
these procedures will be posted in the office trailer, and the individual who manages day -to -day
site operations will be responsible for seeing that these procedures are followed.
Installation Schedule:
Maintenance and
Inspection:
e Staff
Designated recycling dumpsters will be installed once the
combined staging area has been established.
The recycling dumpster will be inspected weekly and
immediately after storm events. The recycling dumpster will be
emptied weekly and taken to an approved recycling center. If
recyclable construction wastes are exceeding the dumpster's
capacity, the dumpsters will be emptied more frequently.
BMP Description: Sanitary Waste
Two temporary sanitary facilities (portable toilets) will be provided at the site throughout the
construction phase. The toilets will be in the staging area. The portable toilets will be located
away from a concentrated flow paths and traffic flow and will have collection pans underneath as
secondary containment.
Prepared by Blackwell Engineering, PLC 25
Stonnwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
Installation Schedule:
The portable toilets will be brought to the site once the staging
area has been established.
Maintenance and
Inspection: All sanitary waste will be collected from the portable facilities a
minimum of three times per week. The portable toilets will be
inspected weekly for evidence of leaking holding tanks. Toilets
with leaking holding tanks will be removed from the site and
replaced with new portable toilets.
Responsible Staff.•
BMP Description: Waste Materials
All waste materials will be collected and disposed of into two metal trash dumpsters in the
materials storage area. Dumpsters will have a secure watertight lid, be placed away from
stormwater conveyances and drains, and meet all federal, state, and municipal regulations. Only
trash and construction debris from the site will be deposited in the dumpster. No construction
materials will be buried on -site. All personnel will be instructed, during tailgate training sessions,
regarding the correct disposal of trash and construction debris. Notices that state these practices
will be posted in the office trailer and the individual who manages day -today site operations will
be responsible for seeing that these practices are followed.
Installation Schedule:
Maintenance and
Inspection:
Responsible Sta
Trash dumpsters will be installed once the materials storage area
has been established.
The dumpsters will be inspected weekly and immediately after
storm events. The dumpster will be emptied weekly. If trash and
construction debris are exceeding the dumpster's capacity, the
dumpsters will be emptied more frequently.
Prepared by Blackwell Engineering, PLC 26
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
3.2 Establish Proper Building Material Staging Areas
Instructions:
— Describe construction materials expected to be stored on -site and procedures for storage of materials to
minimize exposure of the materials to stormwater.
BMP Description: Materials Storage Area
Construction equipment and maintenance materials will be stored at the combined staging area
and materials storage areas. Gravel bag berms will be installed around the perimeter to designate
the staging and materials storage area. A watertight shipping container will be used to store hand
tools, small parts, and other construction materials.
Nonhazardous building materials such as packaging material (wood, plastic, and glass), and
construction scrap material (brick, wood, steel, metal scraps, and pipe cuttings) will be stored in
a separate covered storage facility adjacent to the shipping container. All hazardous -waste
materials such as oil filters, petroleum products, paint, and equipment maintenance fluids will be
stored in structurally sound and sealed containers under cover within the hazardous materials
storage area.
Very large items, such as framing materials and stockpiled lumber, will be stored in the open in
the materials storage area. Such materials will be elevated on wood blocks to minimize contact
with runoff.
Installation Schedule:
The materials storage area will be installed after grading and
before any infrastructure is constructed at the site.
Maintenance and
Inspection: The storage area will be inspected weekly and after storm events.
The storage area will be kept clean, well organized, and equipped
with ample cleanup supplies as appropriate for the materials being
stored. Perimeter controls, containment structures, covers, and
liners will be repaired or replaced as needed to maintain proper
function.
Responsible Staff.•
Prepared by Blackwell Engineering, PLC 27
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August-26,-2013
3.3 Designate Washout Areas
Instructions:
— Describe location(s) and controls to eliminate the potential for discharges from washout areas for concrete
mixers, paint, stucco, and so on.
BMP Description: Concrete Washout
A designated temporary, above -grade concrete washout area will be constructed as detailed on
the site map. The temporary concrete washout area will be constructed as shown in Figure 5,
with a recommended minimum length and minimum width of 10 feet, but with sufficient
quantity and volume to contain all liquid and concrete waste generated by washout operations.
The washout area will be lined with plastic sheeting at least 10 mils thick and free of any holes
or tears. Signs will be posted marking the location of the washout area to ensure that concrete
equipment operators use the proper facility.
Concrete pours will not be conducted during or before an anticipated storm event. Concrete
mixer trucks and chutes will be washed in the designated area or concrete wastes will be properly
disposed of off -site. When the temporary washout area is no longer needed for the construction
project, the hardened concrete and materials used to construct the area will be removed and
disposed of according to the maintenance section below, and the area will be stabilized.
Installation Schedule:
Maintenance and
Inspection:
Staff
The washout area will be constructed before concrete pours occur
at the site.
The washout areas will be inspected daily to ensure that all
concrete washing is being discharged into the washout area, no
leaks or tears are present, and to identify when concrete wastes
need to be removed. The washout areas will be cleaned out once
the area is filled to 75 percent of the holding capacity. Once the
area's holding capacity has been reached, the concrete wastes will
be allowed to harden; the concrete will be broken up, removed,
and disposed of properly. The plastic sheeting will be replaced if
tears occur during removal of concrete wastes from the washout
area.
Prepared by Blackwell Engineering, PLC 28
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
3.4 Establish Proper Equipment/Vehicle Fueling and Maintenance
Practices
Instructions:
— Describe equipment/vehicle fueling and maintenance practices that will be implemented to control
pollutants to stormwater (e.g., secondary containment, drip pans, and spill kits)
BMP Description: Vehicle /Equipment Fueling and Maintenance
Several types of vehicles and equipment will be used on -site throughout the project, including
graders, scrapers, excavators, loaders, paving equipment, rollers, trucks and trailers, backhoes,
and forklifts. All major equipment /vehicle fueling and maintenance will be performed off -site. A
small, 20- gallon pickup bed fuel tank will be kept on -site in the combined staging area. When
vehicle fueling must occur on -site, the fueling activity will occur in the staging area. Only minor
equipment maintenance will occur on -site. All equipment fluids generated from maintenance
activities will be disposed of into designated drums stored on spill pallets in accordance with Part
3.1. Absorbent, spill - cleanup materials and spill kits will be available at the combined staging
and materials storage area. Drip pans will be placed under all equipment receiving maintenance
and vehicles and equipment parked overnight.
Installation Schedule:
Maintenance and
Inspection:
Responsible Sta
BMPs implemented for equipment and vehicle maintenance and
fueling activities will begin at the start of the project.
Inspect equipment /vehicle storage areas and fuel tank weekly and
after storm events. Vehicles and equipment will be inspected on
each day of use. Leaks will be repaired immediately, or the
problem vehicle(s) or equipment will be removed from the project
site. Keep ample supply of spill - cleanup materials on -site and
immediately clean up spills and dispose of materials properly.
Prepared by Blackwell Engineering, PLC 29
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
3.5 Control Equipment/Vehicle Washing
Instructions:
— Describe equipment/vehicle washing practices that will be implemented to control pollutants to stormwater.
BMP Description: All equipment and vehicle washing will be performed off -site.
Installation Schedule: I N/A
Maintenance and I N/A
3.6 Spill Prevention and Control Plan
Instructions:
— Describe the spill prevention and control plan to include ways to reduce the chance of spills, stop the
source of spills, contain and clean up spills, dispose of materials contaminated by spills, and train
personnel responsible for spill prevention and control.
BMP Description: Spill Prevention and Control Procedures
I. Employee Training: All employees will be trained in spill prevention and control
procedures during specified training sessions
II. Vehicle Maintenance: Vehicles and equipment will be maintained off -site. All
vehicles and equipment including subcontractor vehicles will be checked for
leaking oil and fluids. Vehicles leaking fluids will not be allowed on -site. Drip pans
will be placed under all vehicles and equipment that are parked overnight.
I1I. Hazardous Material Storage: Hazardous materials will be stored in accordance with
Section 3, Part 1 and federal and municipal regulations.
IV. Spill Kits: Spill kits will be within the materials storage area and concrete washout
areas.
V. Spills: All spills will be cleaned up immediately upon discovery. Spent absorbent
materials and rags will be hauled off -site immediately after the spill is cleaned up
for disposal. Spills large enough to discharge to surface water will be reported to
the National Response Center at 1- 800 - 424 -8802.
VI. Material safety data sheets, a material inventory, and emergency contact
information will be maintained at the on -site project trailer.
Prepared by Blackwell Engineering, PLC 30
Installation Schedule:
Maintenance and
Inspection:
Stormwater Pollution Prevention Plan (S)APPP)
New Hope Church I August 26, 2013
The spill prevention and control procedures will be
implemented once construction begins on -site.
All personnel will be instructed regarding the correct procedures
for spill prevention and control. Notices that state these
practices will be posted, and the individual who manages day -
to -day site operations will be responsible for seeing that these
procedures are followed.
3.7 Any Additional BMPs
Instructions:
— Describe any additional BMPs that do not fit into the above categories. Indicate the problem they are
intended to address.
BMP Description: No Additional BMPs were identified
Installation Schedule: I N/A
Maintenance and N/A
Inspection:
Prepared by Blackwell Engineering, PLC 31
Stormwater Pollution Prevention Plan ( SWPPP)
New Hope Church I August 26, 2013
3.8 Allowable Non- Stormwater Discharge Management
Instructions:
— Identify all allowable sources of non - stormwater discharges that are not identified. The allowable non -
stormwater discharges identified might include the following (see your permit for an exact list):
✓ Waters used to wash vehicles where detergents are not used
✓ Water used to control dust
✓ Potable water including uncontaminated water line flushings
✓ Routine external building wash down that does not use detergents
✓ Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred
(unless all spilled material has been removed) and where detergents are not used
✓ Uncontaminated air conditioning or compressor condensate
✓ Uncontaminated ground water or spring water
✓ Foundation or footing drains where flows are not contaminated with process materials such as
solvents
✓ Uncontaminated excavation dewatering
✓ Landscape irrigation
— Identify measures used to eliminate or reduce these discharges and the BMPs used to prevent them from
becoming contaminated.
Any changes in construction activities that produce other allowable non - stormwater discharges will be identified,
and the SWPPP will be amended and the appropriate erosion and sediment control will be implemented.
Prepared by Blackwell Engineering, PLC 32
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church August 26, 2013
SECTION 4: FINAL STABLIZATION AND POST- CONSTRUCTION BMPs
Instructions:
Describe all post- construction stormwater management measures that will be installed during the
construction process to control pollutants in stormwater discharges after construction operations have
been completed. Examples of post- construction BMPs include the following:
✓ Biofilters
• Detention /retention devices
• Earth dikes, drainage swales, and lined ditches
• Infiltration basins
• Porous pavement
• Other proprietary permanent structural BMPs
• Outlet protection /velocity dissipation devices
• Slope protection
• Vegetated strips and /or swales
— Describe how low- impact designs or smart growth considerations have been incorporated into the design.
— For any structural BMPs, you should have design specifications and details and refer to them.
BMP Description: In -Line Storage
In -line storage refers to a number of practices designed to use the storage within the storm drain
system to detain flows. While these practices can reduce storm peak flows, they are unable to
improve water quality and offer limited protection of downstream channels. Hence, EPA does
not recommend using these practices in many circumstances. Storage is achieved by placing
devices in the storm drain system to restrict the rate of flow. Devices can slow the rate of flow by
backing up flow, as in the case of a dam or weir, or through the use of vortex valves, devices that
reduce flow rates by creating a helical flow path in the structure.
Applicability
In -line storage practices serve a similar purpose as traditional detention basins. These practices
can act as surrogates for aboveground storage when little space is available for aboveground
storage facilities.
Installation Schedule:
Maintenance and
Inspection: Flow regulators require very little maintenance, because they are
designed to be "self cleaning," much like the storm drain system.
In some cases, flow regulators may be modified based on
downstream flows, new connections to the storm drain, or the
Prepared by Blackwell Engineering, PLC 33
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
application of other flow regulators within the system. For some
designs, such as check dams, regulations will require only
moderate construction in order to modify the structure's design.
Responsible Staff.
BMP Description: Bio- retention (Rain Gardens)
Bioretention areas, or rain gardens, are landscaping features adapted to provide on -site treatment
of stormwater runoff. They are commonly located in parking lot islands or within small pockets
of residential land uses. Surface runoff is directed into shallow, landscaped depressions. These
depressions are designed to incorporate many of the pollutant removal mechanisms that operate
in forested ecosystems. During storms, runoff ponds above the mulch and soil in the system.
Runoff from larger storms is generally diverted past the facility to the storm drain system. The
remaining runoff filters through the mulch and prepared soil mix. The filtered runoff can be
collected in a perforated underdrain and returned to the storm drain system.
Applicability
Bioretention systems are generally applied to small sites and in a highly urbanized setting.
Bioretention can be applied in many climatological and geologic situations, with some minor
design modifications.
Regional Applicability
Bioretention systems are applicable almost everywhere in the United States. In and or cold
climates, however, some minor design modifications may be needed.
Ultra -Urban Areas
Ultra -urban areas are densely developed urban areas in which little pervious surface exists.
Bioretention facilities are ideally suited to many ultra -urban areas, such as parking lots. While
they consume a fairly large amount of space (approximately 5 percent of the area that drains to
them), they can be fit into existing parking lot islands or other landscaped areas.
Stormwater Hot Spots
Stormwater hot spots are areas where land use or activities generate highly contaminated runoff,
with concentrations of pollutants in excess of those typically found in stormwater. A typical
example is a gas station or convenience store parking lot. Bioretention areas can be used to treat
Prepared by Blackwell Engineering, PLC 34
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
stormwater hot spots as long as an impermeable liner is used at the bottom of the filter bed.
Stormwater Retrofit
A stormwater retrofit is a stormwater management practice (usually structural) put into place
after development has occurred, to improve water quality, protect downstream channels, reduce
flooding, or meet other specific objectives. Bioretention can be used as a stormwater retrofit, by
modifying existing landscaped areas, or if a parking lot is being resurfaced. In highly urbanized
areas, this is one of the few retrofit options that can be employed. However, it is expensive to
retrofit an entire watershed or subwatershed using stormwater management practices designed to
treat small sites.
Cold Water (Trout) Streams
Some species in cold water streams, notably trout, are extremely sensitive to changes in
temperature. In order to protect these resources, designers should avoid treatment practices that
increase the temperature of the stormwater runoff they treat. Bioretention is a good option in cold
water streams because water ponds in them for only a short time, decreasing the potential for
stream warming. Furthermore, bioretention cells have been shown to decrease the temperature of
runoff from certain land uses, such as parking lots.
Installation Schedule:
Maintenance and
Inspection:
Bioretention requires landscaping maintenance, including
measures to ensure that the area is functioning properly, as well as
maintenance of the landscaping on the practice. In many cases,
bioretention areas initially require intense maintenance, but less
maintenance is needed over time. In many cases, maintenance
tasks can be completed by a landscaping contractor, who may
already be hired at the site. Landscaping maintenance
requirements can be less resource intensive than with traditional
landscaping practices such as elevated landscaped islands in
parking areas.
Prepared by Blackwell Engineering, PLC 35
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
SECTION 5: INSPECTIONS
5.1 Inspections
Instructions:
— Identify the individual(s) responsible for conducting inspections and describe their qualifications.
— Describe the frequency that inspections will occur at your site including any correlations to storm frequency
and intensity.
— You should also document the repairs and maintenance that you undertake as a result of your inspections.
These actions can be documented in the corrective action log described in Part 5.3 below.
1. Inspection Personnel. Identify the person(s) who will be responsible for conducting
inspections and describe their qualifications:
Name:
Qualifications:
2. Inspection Schedule and Procedures:
Describe the inspection schedules and procedures you have developed for your site (include
frequency of inspections for each BMP or group of BMPs, indicate when you will inspect, e.g.,
beforelduringland after rain events, spot inspections):
Inspections shall be conducted (i) at least every seven calendar days; or(ii) at least once
every 14 calendar days and within 48 hours following any runoff producing storm event.
Where areas have been temporarily stabilized or runoff is unlikely due to winter conditions
(e.g. the site is covered with snow or ice, or frozen ground exists) such inspections shall be
conducted at least once every month.
Describe the general procedures for correcting problems when they are identified. Include responsible staff
and time frames for making corrections:
Please refer to Appendix D for the Inspection Reports
Prepared by Blackwell Engineering, PLC 36
Stormwater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
5.2 Delegation of Authority
Instructions:
— Identify the individual(s) or specifically describe the position where the construction site operator has
delegated authority for the purposes of signing inspection reports, certifications, or other information.
— Attach the delegation of authority form that will be used.
Duly Authorized Representative(s) or Position(s):
Please refer to Appendix I for the Delegation of Authority
5.3 Corrective Action Log
Instructions:
— This log should describe repair, replacement, and maintenance of BMPs undertaken as a result of the
inspections and maintenance procedures form section 5.1 and the inspection sheets in Appendix C.
Actions related to the findings of inspections should reference the specific inspection report.
— This log should describe actions taken, date completed, and note the person that completed the work.
Corrective Action Log:
Please refer to Appendix E for the Corrective Action Log
Prepared by Blackwell Engineering, PLC 37
Storrawater Pollution Prevention Plan (SWPPP)
New Hope Church I August 26, 2013
SECTION 6: RECORDKEEPING AND TRAINING
6.1 Recordkeeping
Instructions:
— The following is a list of records you should keep at your project site available for inspectors to review:
— Dates of grading, construction activity, and stabilization
— A copy of the construction general permit
— The signed and certified VSMP Registration Statement
— A copy of the letter from DCR notifying you of their receipt of your complete VSMP Registration Statement
— Inspection reports
— Records relating to endangered species and historic preservation
— Check your permit for additional details
Records will be retained for a minimum period of at least 3 years after the permit is terminated.
Date(s) when major grading activities occur:
Please refer to Appendix F for the SWPPP Amendment Log
6.2 Log of Changes to the SWPPP
Instructions:
— Create a log here, or as an attachment, of changes and updates to the SWPPP. You should include
additions of new BMPs, replacement of failed BMPs, significant changes in the activities or their timing on
the project, changes in personnel, changes in inspection and maintenance procedures, updates to site
maps, and so on.
Please refer to Appendix F for the SWPPP Amendment Log
Prepared by Blackwell Engineering, PLC 38
SWPPP Appendices
Appendix A .............................................................. ............................... General Location Map /Drawing
Vicinity Map
Aerial Photograph
Terrain Map
Appendix B ................................................................... ............................... General Permit No.: DCRO 1
Appendix C ........................................ ............................... VSMP General Permit Registration Statement
Acknowledgement Letter from DCR
AppendixD ..................................................................................... ............................... Inspection Report
Appendix E .............................................................................. ............................... Corrective Action Log
AppendixF ........................................................................ ............................... SWPPP Amendment Log
Appendix G ................................................ ............................... Subcontractor Certifications /Agreements
Appendix H ................................................ ............................... Grading and Stabilization Activities Log
Appendix I ................................................................... ............................... Delegation of Authority Form
Appendix J ..................................................................... ............................... Change of Ownership Letter
Termination Notice
Appendix K .................................................. ............................... Endangered Species List for Albemarle
Historic Preservation Documentation for Albemarle
Contact List (DCR, ESC, DEQ)
When to Report a Spill
AppendixL .................................................................................................. ............................... ESC Plan
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CHAPTER 880
GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION
ACTIVITIES
9VAC25- 880 -1. Definitions.
The words and terms used in this chapter shall have the meanings defined in the Virginia
Stormwater Management Act (Article 2.3 (§ 62.1- 44.15:24 et seq.) of Chapter 3.1 of Title 62.1 of
the Code of Virginia), this chapter, and 9VAC25 -870 unless the context clearly indicates
otherwise, except as otherwise specified in this section. Terms not defined in the Act, this
chapter, or 9VAC25 -870 shall have the meaning attributed to them in the federal Clean Water
Act (33 USC § 1251 et seq.) (CWA). For the purposes of this chapter:
"Business day" means Monday through Friday excluding state holidays.
"Commencement of land disturbance" means the initial disturbance of soils associated with
clearing, grading, or excavating activities or other construction activities (e.g., stockpiling of fill
material).
"Construction site" means the land where any land- disturbing activity is physically located or
conducted, including any adjacent land used or preserved in connection with the land- disturbing
activity.
"Final stabilization" means that one of the following situations has occurred:
1. All soil disturbing activities at the site have been completed and a permanent
vegetative cover has been established on denuded areas not otherwise permanently
stabilized. Permanent vegetation shall not be considered established until a ground
cover is achieved that is uniform (e.g., evenly distributed), mature enough to survive,
and will inhibit erosion.
2. For individual lots in residential construction, final stabilization can occur by either:
a. The homebuilder completing final stabilization as specified in subdivision 1 of this
definition; or
b. The homebuilder establishing temporary soil stabilization, including perimeter
controls for an individual lot prior to occupation of the home by the homeowner, and
informing the homeowner of the need for, and benefits of, final stabilization.
3. For construction projects on land used for agricultural purposes , final stabilization
may be accomplished by returning the disturbed land to its preconstruction agricultural
use. Areas disturbed that were not previously used for agricultural activities, such as
buffer strips immediately adjacent to surface waters, and areas that are not being
returned to their preconstruction agricultural use must meet the final stabilization criteria
specified in subdivision 1 or 2 of this definition.
"Immediately" means as soon as practicable, but no later than the end of the next business
day, following the day when the land- disturbing activities have temporarily or permanently
ceased. In the context of this general permit, "immediately" is used to define the deadline for
initiating stabilization measures.
"Impaired waters" means surface waters identified as impaired on the 2012 § 305(b)/303(d)
Water Quality Assessment Integrated Report.
"Infeasible" means not technologically possible or not economically practicable and
achievable in light of best industry practices.
"Initiation of stabilization activities" means:
1. Prepping the soil for vegetative or nonvegetative stabilization;
Pagel of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
2. Applying mulch or other nonvegetative product to the exposed area;
3. Seeding or planting the exposed area;
4. Starting any of the above activities on a portion of the area to be stabilized, but not on
the entire area; or
5. Finalizing arrangements to have the stabilization product fully installed in compliance
with the applicable deadline for completing stabilization.
This list is not exhaustive.
"Measurable storm event" means a rainfall event producing 0.25 inches of rain or greater
over 24 hours.
"Stabilized" means land that has been treated to withstand normal exposure to natural
forces without incurring erosion damage.
9VAC25- 880 -10. Purpose.
This general permit regulation governs stormwater discharges from regulated construction
activities. For the purposes of this chapter, these discharges are defined as stormwater
discharges associated with large construction activity, and stormwater discharges associated
with small construction activity. Stormwater discharges associated with other types of industrial
activity shall not have coverage under this general permit. This general permit covers only
discharges through a point source to surface waters or through a municipal or nonmunicipal
separate storm sewer system to surface waters. Stormwater discharges associated with
industrial activity that originate from construction activities that have been completed and the
site has undergone final stabilization are not authorized by this general permit.
9VAC25- 880 -15. Applicability of incorporated references based on the dates that they
became effective.
Except as noted, when a regulation of the United States set forth in the Code of Federal
Regulations is referenced and incorporated herein, that regulation shall be as it exists and has
been published in the July 1, 2013, update.
9VAC25- 880 -20. Effective date of general permit.
This general permit is effective on July 1, 2014. The general permit will expire on June 30,
2019. This general permit is effective for any covered operator upon compliance with all
provisions of 9VAC25- 880 -30.
9VAC25- 880 -30. Authorization to discharge.
A. Any operator governed by this general permit is authorized to discharge to surface waters
of the Commonwealth of Virginia provided that:
1. The operator submits a complete and accurate registration statement, if required to do
so, in accordance with 9VAC25- 880 -50 and receives acceptance of the registration by
the board;
2. The operator submits any permit fees, if required to do so, in accordance with
9VAC25- 870 -700 et seq.;
3. The operator complies with the applicable requirements of 9VAC25- 880 -70;
4. The operator obtains approval of:
Page 2 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 711/2014)
a. An erosion and sediment control plan from the appropriate VESCP authority as
authorized under the Erosion and Sediment Control Regulations (9VAC25 -840),
unless the operator receives from the VESCP an "agreement in lieu of a plan" as
defined in 9VAC25- 840 -10 or prepares the erosion and sediment control plan in
accordance with annual standards and specifications approved by the department.
The operator of any land- disturbing activity that is not required to obtain erosion and
sediment control plan approval from a VESCP authority or is not required to adopt
department- approved annual standards and specifications shall submit the erosion
and sediment control plan to the department for review and approval; and
b. A stormwater management plan from the appropriate VSMP authority as
authorized under the Virginia Stormwater Management Program (VSMP) Regulation
(9VAC25 -870), unless the operator prepares the stormwater management plan in
accordance with annual standards and specifications approved by the department.
The operator of any land- disturbing activity that is not required to obtain stormwater
management plan approval from a VSMP authority or is not required to adopt
department- approved annual standards and specifications shall submit the
stormwater management plan to the department for review and approval; and
5. The board has not notified the operator that the discharge is not eligible for coverage
in accordance with subsection B of this section.
B. The board will notify an operator that the discharge is not eligible for coverage under this
general permit in the event of any of the following:
1. The operator is required to obtain an individual permit in accordance with 9VAC25 -
870 -410 B;
2. The operator is proposing discharges to surface waters specifically named in other
board regulations that prohibit such discharges;
3. The discharge causes, may reasonably be expected to cause, or contributes to a
violation of water quality standards (9VAC25 -260);
4. The discharge violates or would violate the antidegradation policy in the Water Quality
Standards (9VAC25- 260 -30) ; or
5. The discharge is not consistent with the assumptions and requirements of an
applicable TMDL approved prior to the term of this general permit.
C. 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:
1. The support activity is directly related to a construction activity that is required to have
general permit coverage for discharges of stormwater from construction activities;
2. The support activity is not a commercial operation , nor does it serve multiple
unrelated construction activities by different operators;
3. The support activity does not operate beyond the completion of the last construction
activity it supports;
4. The support activity is identified in the registration statement at the time of general
permit coverage;
5. Appropriate control measures are identified in a stormwater pollution prevention plan
and implemented to address the discharges from the support activity areas; and
6. All applicable, state, federal, and local approvals are obtained for the support activity.
D. Support activities located off -site are not required to be covered under this general
permit. Discharges of stormwater from off -site support activities may be authorized under
Page 3 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
another state or VPDES permit. Where stormwater discharges from off -site support activities
are not authorized under this general permit, the land area of the off -site support activity need
not be included in determining the total land disturbance acreage of the construction activity
seeking general permit coverage.
E. 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.
F. Authorized nonstormwater discharges. The following nonstormwater discharges from
construction activities are authorized by this general permit:
1. Discharges from firefighting activities;
2. Fire hydrant flushings;
3. Water 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 source, including uncontaminated waterline flushings;
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 water 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 groundwater 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 irrigations.
G. Approval for coverage under this general permit does not relieve any operator of the
responsibility to comply with any other applicable federal, state or local statute, ordinance or
regulation.
H. Continuation of general permit coverage.
1. Any operator that was authorized to discharge under the general permit issued in
2009 and that submits a complete and accurate registration statement on or before June
30, 2014, is authorized to continue to discharge under the terms of the 2009 general
permit until such time as the board either:
a. issues coverage to the operator under this general permit or
b. Notifies the operator that the discharge is not eligible for coverage under this
general permit.
2. When the operator is not in compliance with the conditions of the expiring or expired
general permit the board may choose to do any or all of the following:
Page 4 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
a. Initiate enforcement action based upon the 2009 general permit;
b. Issue a notice of intent to deny the new general permit. If the general permit is
denied, the owner or operator would then be required to cease the activities
authorized by the continued general permit or be subject to enforcement action for
operating without a state permit;
c. Issue a new state permit with appropriate conditions; or
d. Take other actions authorized by the VSMP Regulation (9VAC25 -870).
9VAC25- 880 -40. Delegation of authorities to state and local programs.
A board - approved VSMP authority is authorized to administer requirements of this general
permit, including but not limited to: (i) registration statement acceptance; (ii) fee collection; (iii)
stormwater management plan review and approval; and (iv) permit compliance and enforcement
dependent upon conditions established as part of the board approval.
9VAC25- 880 -50. General permit application (registration statement).
A. Deadlines for submitting registration statement. Any operator seeking coverage under
this general permit, and that is required to submit a registration statement, shall submit a
complete and accurate general VPDES permit registration statement in accordance with this
section, which shall serve as a notice of intent for coverage under the general VPDES permit for
discharges of stormwater from construction activities.
1. New construction activities.
a. Any operator proposing a new stormwater discharge from construction activities
shall submit a complete and accurate registration statement to the VSMP authority
prior to the commencement of land disturbance.
b. Any operator proposing a new stormwater discharge from construction activities in
response to a public emergency where the related work requires immediate
authorization to avoid imminent endangerment to human health or the environment is
authorized to discharge under this general permit, provided that:
(1) The operator submits a complete and accurate registration statement to the
VSMP authority no later than 30 days after commencing land disturbance; and
(2) Documentation to substantiate the occurrence of the public emergency is
provided with the registration statement.
c. Any operator proposing a new stormwater discharge associated with the
construction of a single - family residence separately built, disturbing less than one
acre and part of a larger common plan of development or sale, is authorized to
discharge under this general permit and is not required to submit a registration
statement or the department portion of the permit fee, provided that the stormwater
management plan for the larger common plan of development or sale provides
permanent control measures (i.e., stormwater management facilities) encompassing
the single family residence.
2. Existing construction activities.
a. Any operator that was authorized to discharge under the general permit issued in
2009 and that intends to continue coverage under this general permit shall:
(1) Submit a complete and accurate registration statement to the VSMP authority on
or before June 1, 2014; and
Page 5 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
(2) 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. Any operator with an existing stormwater discharge associated with the
construction of a single - family residence separately built, disturbing less than one
acre and part of a larger common plan of development or sale, and that intends to
continue coverage under this general permit, is authorized to discharge under this
general permit and is not required to submit a registration statement or the
department portion of the permit fee, provided that:
(1) The stormwater management plan for the larger common plan of development or
sale provides permanent control measures (i.e., stormwater management facilities)
encompassing the single - family residence; and
(2) The operator updates 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.
3. For stormwater discharges from construction activities where the operator changes,
the new operator must submit a complete and accurate registration statement or transfer
agreement form to the VSMP authority prior to assuming operational control over site
specifications or commencing work on -site.
4. Late notifications. Operators are not prohibited from submitting registration statements
after commencing land disturbance. When a late registration statement is submitted,
authorization for discharges shall not occur until coverage under the general permit is
issued. The VSMP authority, department, board, and the EPA reserve the right to take
enforcement action for any unpermitted discharges that occur between the
commencement of land disturbance and discharge authorization.
B. Registration statement. The operator shall submit a registration statement to the VSMP
authority that shall contain the following information:
1. Name, contact, mailing address, telephone number, and email address if available of
the construction activity operator. No more than one operator may receive coverage
under each registration statement.
NOTE: General permit coverage will be issued to this operator, and the certification in
subdivision 11 of this subsection must be signed by the appropriate person associated
with this operator;
2. Name and location if available of the construction activity and all off -site support
activities to be covered under this general permit, including city or county, and latitude
and longitude in decimal degrees;
3. Status of the construction activity: federal, state, public, or private;
4. Nature of the construction activity (e.g., commercial, industrial, residential, agricultural,
oil and gas, etc.);
5. Name of the receiving water(s) and HUC ;
6. If the discharge is through a municipal separate storm sewer system (MS4), the name
of the municipal separate storm sewer system operator;
7. Estimated project start date and completion date;
8. Total land area of development and estimated area to be disturbed by the
construction activity (to the nearest one - hundredth of an acre);
9. Whether the area to be disturbed by the construction activity is part of a larger
common plan of development or sale;
Page 6 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
10. A stormwater pollution prevention plan ( SWPPP) must be prepared in accordance
with the requirements of the General VPDES Permit for Stormwater Discharges from
Construction Activities prior to submitting the registration statement. By signing the
registration statement the operator certifies that the SWPPP has been prepared ; and
11. The following 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."
C. The registration statement shall be signed in accordance with 9VAC25- 880 -70, Part III K.
9VAC25- 880 -60. Termination of general permit coverage.
A. Requirements. The operator of the construction activity shall submit a notice of
termination to the VSMP authority after one or more of the following conditions have been met:
1. 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 is responsible. 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 notice of termination;
2. Another operator has assumed control over all areas of the site that have not been
finally stabilized and obtained coverage for the ongoing discharge;
3. Coverage under an alternative VPDES or state permit has been obtained; or
4. For residential construction only, temporary soil stabilization has been completed and
the residence has been transferred to the homeowner.
The notice of termination should be submitted no later than 30 days after one of the above
conditions being met. Authorization to discharge terminates at midnight on the date that the
notice of termination is submitted for the conditions set forth in subdivisions 2 through 4 of this
subsection unless otherwise notified by the VSMP authority or the department. Termination of
authorizations to discharge for the conditions set forth in subdivision 1 of this subsection shall
be effective upon notification from the department that the provisions of subdivision 1 of this
subsection have been met or 60 days after submittal of the notice of terminations, whichever
occurs first.
B. Notice of termination. The notice of termination shall contain the following information:
1. Name, contact, mailing address, telephone number, and email address if available of
the construction activity operator.
2. Name and location if available of the construction activity covered under this general
permit, including city or county, and latitude and longitude in decimal degrees.
3. The general permit registration number.
4. The basis for submission of the notice of termination, pursuant to subsection A of this
section.
5. Where applicable, a list of the on -site and off -site permanent control measures (both
structural and nonstructural) that were installed to comply with the stormwater
Page 7 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/112014)
management technical criteria. For each permanent control measure that was installed,
the following information shall be included:
a. The type of permanent control measure installed and the date that it became
functional as a permanent control measure;
b. The location if available of the permanent control measure, including city or
county, and latitude and longitude in decimal degrees;
c. The receiving water of the permanent control measures; and
d. The number of total and impervious acres treated by the permanent control
measure (to the nearest one -tenth of an acre).
6. Where applicable, the following information related to participation in a regional
stormwater management plan. For each regional stormwater management facility, the
following information shall be included:
a. The type of regional facility to which the site contributes;
b. The location if available of the regional facility, including city or county, and latitude
and longitude in decimal degrees; and
c. The number of total and impervious site acres treated by the regional facility (to
the nearest one -tenth of an acre).
7. Where applicable, the following information related to perpetual nutrient credits that
were acquired in accordance with § 62.1- 44.15:35 of the Code of Virginia:
a. The name of the nonpoint nutrient credit generating entity from which perpetual
nutrient credits were acquired; and
b. The number of perpetual nutrient credits acquired (lbs. per acre per year).
8. The following certification: "I certify under penalty of law that I have read and
understand this notice of termination 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."
C. The notice of termination shall be signed in accordance with 9VAC25- 880 -70 Part III K.
D. Termination by the board. The board may terminate coverage under this general permit
during its term and require application for an individual permit or deny a general permit renewal
application on its own initiative in accordance with the Act, this chapter, and the VSMP
Regulation, 9VAC25 -870.
9VAC25- 880 -70. General permit.
Any operator whose registration statement is accepted by the board will receive the
following general permit and shall comply with the requirements contained therein and be
subject to all requirements of 9VAC25 -870.
Page 8 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
General Permit No.: VAR10
Effective Date: July 1, 2014
Expiration Date: June 30, 2019
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 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 herein.
PART I
DISCHARGE AUTHORIZATION AND SPECIAL CONDITIONS
A. Coverage under this general permit.
1. 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.
2. 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
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9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
registration, has undergone final stabilization. Post - construction industrial stormwater
discharges may need to be covered by a separate VPDES permit.
2. 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.
3. 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.
4. Impaired waters and TMDL limitation. Discharges of stormwater from construction
activities to surface waters identified as impaired in the 2012 § 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 SWPPP that minimizes the
pollutants of concern and, when applicable, is consistent with the assumptions and
requirements of the approved TMDL wasteload allocations. In addition, the operator
shall implement the following items:
a. The impaired water(s), approved TMDL(s), and pollutant(s) of concern, when
applicable, shall be identified in the SWPPP;
b. 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;
c. 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
d. The applicable SWPPP inspection requirements specified in Part II F 2 shall be
amended as follows:
(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 48
hours following a measurable storm event. In the event that a measurable storm
event occurs when there are more than 48 hours between business days, the
inspection shall be conducted on the next business day; and
(2) Representative inspections used by utility line installation, pipeline construction,
or other similar linear construction activities shall inspect all outfalls discharging to
surface waters identified as impaired or for which a TMDL wasteload allocation has
been established and approved prior to the term of this general permit.
5. Exceptional waters limitation. Discharges of stormwater from construction activities
not previously covered under the general permit issued in 2009 to exceptional waters
identified in 9VAC25- 260 -30 A 3 c are not eligible for coverage under this general permit
unless the operator implements the following:
a. The exceptional water(s) shall be identified in the SWPPP;
b. 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;
c. 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
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9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
d. The applicable SWPPP inspection requirements specified in Part II F 2 shall be
amended as follows:
(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 48
hours following a measurable storm event. In the event that a measurable storm
event occurs when there are more than 48 hours between business days, the
inspection shall be conducted on the next business day; and
(2) Representative inspections used by utility line installation, pipeline construction,
or other similar linear construction activities shall inspect all outfalls discharging to
exceptional waters.
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;
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;
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
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9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
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 to the VSMP authority after one or more of the
following conditions have been met:
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 is responsible. When applicable, long term
responsibility and maintenance requirements shall be recorded in the local land
records prior to the submission of a notice of termination;
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 residential construction only, temporary soil stabilization has been completed
and the residence has been transferred to the homeowner.
2. The notice of termination should be submitted no later than 30 days after one of the
above conditions in subdivision 1 of this subsection are met. 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. Termination of
authorizations 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 the notice
of termination, whichever occurs first.
3. The notice of termination shall be signed in accordance with Part III K of this general
permit.
G. Water quality protection.
1. The operator must 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.
2. 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 B to
adequately address the identified water quality concerns;
Page 12 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2124/2014 - effective 7/1/2014)
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
c. Submit an individual permit application in accordance with 9VAC25- 870 -410 B 3.
All written responses required under this chapter must include a signed certification
consistent with Part III K.
PART II
STORMWATER POLLUTION PREVENTION 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 A. 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 must develop the
missing elements and include them in the SWPPP.
Any operator that was authorized to discharge under the general permit issued in 2009, 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.
A. Stormwater pollution prevention plan contents. The SWPPP shall include the following
items:
1. General information.
a. A signed copy of the registration statement 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:
(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;
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9VAC25 -880 (adopted 12117/2013 - published 2/24/2014 - effective 7/1/2014)
(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 support activities, when applicable and when required by the VSMP
authority, including but not limited to (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 purposes.
2. Erosion and sediment control plan.
a. An erosion and sediment control plan approved by the VESCP authority as
authorized under the 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. Any operator
proposing a new stormwater discharge from construction activities that is not
required to obtain erosion and sediment control plan approval from a VESCP
authority or does not adopt department- approved annual standards and
specifications shall submit the erosion and sediment control plan to the department
for review and approval.
b. All erosion and sediment control plans shall include a statement describing the
maintenance responsibilities required for the erosion and sediment controls used.
c. A properly implemented 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, that adequately:
(1) Controls the volume and velocity of stormwater runoff within the site to minimize
soil erosion;
(2) Controls stormwater discharges, including peak flow rates and total stormwater
volume, to minimize erosion at outlets and to minimize downstream channel and
stream bank erosion;
(3) Minimizes the amount of soil exposed during the construction activity;
(4) Minimizes the disturbance of steep slopes;
(5) Minimizes 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) Provides and maintains natural buffers around surface waters, directs stormwater
to vegetated areas to increase sediment removal, and maximizes stormwater
infiltration, unless infeasible;
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9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
(7) Minimizes soil compaction and, unless infeasible, preserves topsoil;
(8) Ensures that stabilization of disturbed areas will be initiated 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) Utilizes 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. New construction activities. A stormwater management plan approved by the
VSMP authority as authorized under the Virginia Stormwater Management Program
(VSMP) Regulation (9VAC25 -870), or a stormwater management plan prepared in
accordance with annual standards and specifications approved by the department.
Any operator proposing a new stormwater discharge from construction activities that
is not required to obtain stormwater management plan approval from a VSMP
authority or does not adopt department- approved annual standards and
specifications shall submit the stormwater management plan to the department for
review and approval.
b. Existing construction activities. Any operator that was authorized to discharge
under the general permit issued in 2009, and that intends to continue coverage
under this general permit, shall ensure compliance with the requirements of 9VAC25 -
870-93 through 9VAC25- 870 -99 of the VSMP Regulation, including but not limited to
the water quality and quantity requirements. 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.
4. 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;
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
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9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 711/2014)
releases; and (ii) procedures for reporting leaks, spills, and other releases in
accordance with Part 111 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
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, and sanitary wastes; and
(8) Address any other discharge from the potential pollutant - generating activities not
addressed above; 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.
5. SWPPP requirements for discharges to impaired waters, surface waters with an
applicable TMDL wasteload allocation established and approved prior to the term of this
general permit, and exceptional waters. The SWPPP shall:
a. Identify the impaired water(s), approved TMDL(s), pollutant(s) of concern, and
exceptional waters identified in 9VAC25- 260 -30 A 3 c, when applicable;
b. Provide clear direction 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;
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9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
(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 I B
4 or Part I B 5.
6. Qualified personnel. The name, phone number, and qualifications of the qualified
personnel conducting inspections required by this general permit.
7. Delegation of authority. The individuals or positions with delegated authority, in
accordance with Part III K, to sign inspection reports or modify the SWPPP.
8. SWPPP signature. The SWPPP shall be signed and dated in accordance with Part III
K.
B. 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.
2. The SWPPP must 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
must be accomplished as described in Part II G.
3. The SWPPP must clearly identify the contractor(s) 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 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 where modified as soon as possible;
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
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9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
g. Measures taken to address any evidence identified as a result of an inspection
required under Part II F.
5. Amendments, modifications, or updates to the SWPPP shall be signed in accordance
with Part III K.
C. 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.
D. 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.
2. 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 must be posted near the main entrance of the construction site.
3. 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 C. 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.
E. 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.
1. All control measures must 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 F identifies a control measure that is
not operating effectively, corrective action(s) 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.
2. If site inspections required by Part II F identify an existing control measure that needs
to be modified or if an additional 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 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.
F. 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 insuring that the qualified personnel conduct
the inspection.
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9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/112014)
2. Inspection schedule.
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 48 hours following a
measurable storm event. In the event that a measurable storm event occurs when
there are more than 48 hours between business days, the inspection shall be
conducted no later than the next business day.
b. 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 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.
c. 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 report required by Part II F.
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;
(2) Record the information and a description of any discharges occurring at the time
of 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;
(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 channel, flume, or other slope drain structures installed
to convey concentrated runoff down cut and fill slopes;
Page 19 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
(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 roads for
minimizing sediment tracking;
(5) Inspect areas that have reached final grade or that will remain dormant for more
than 14 days for initiation of stabilization activities;
(6) Inspect areas that have reached final grade or that will remain dormant for more
than 14 days for completion of stabilization activities within seven days of reaching
grade or stopping work;
(7) 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 but is not limited to:
(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
sediments 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 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 outside of the approved area to be disturbed;
(8) Inspect pollutant generating activities identified in the pollution prevention plan for
the proper implementation, maintenance and effectiveness of the procedures and
practices;
(9) Identify any pollutant generating activities not identified in the pollution prevention
plan; and
(10) 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 location(s) of prohibited discharges;
d. The location(s) of control measures that require maintenance;
Page 20 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2124/2014 - effective 7/1/2014)
e. The location(s) of control measures that failed to operate as designed or proved
inadequate or inappropriate for a particular location;
f. The location(s) where any evidence identified under Part II F 3 a (7) exists;
g. The location(s) where any additional control measure is needed that did not exist
at the time of inspection;
h. A list of corrective actions required (including 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
j. The date and signature of the qualified personnel and the operator or its duly
authorized representative.
The inspection report and any actions taken in accordance with Part II must 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.
G. Corrective actions.
1. The operator shall implement the corrective action(s) identified as a result of an
inspection as soon as practicable but no later than seven days after discovery or a
longer period as approved by the VSMP authority. If approval of a corrective action by a
regulatory authority (e.g., VSMP authority, VESCP authority, or the department) is
necessary, additional control measures shall be implemented to minimize pollutants in
stormwater discharges until such approvals can be obtained.
2. 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.
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 must 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.
2. 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).
Page 21 of 29
9VAC25 -880 (adopted 12/1712013 - published 2/24/2014 - effective 7/1/2014)
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 individual(s) who performed the sampling or measurements;
c. The date(s) and time(s) analyses were performed;
d. The individual(s) 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.
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.
3. 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 modifying,
revoking and reissuing, or terminating this general permit 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.
Page 22 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/112014)
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;
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
8. 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 herein, 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 1 2. Unusual and
extraordinary discharges include but are not limited to 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.
1. 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:
Page 23 of 29
9VAC25 -880 (adopted 12117/2013 - published 2/24/2014 - effective 7/1/2014)
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;
b. The period of noncompliance, including exact dates and times, and if the
noncompliance has not been corrected, the anticipated time it is expected to
continue; and
c. Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the
noncompliance.
The department may waive the written report on a case -by -case basis for reports of
noncompliance under Part III I if the oral report has been received within 24 hours and
no adverse impact on surface waters has been reported.
3. The operator shall report all instances of noncompliance not reported under Part III 1 1
or 2 in writing as part of the SWPPP. The reports shall contain the information listed in
Part III 12.
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 manager is authorized to make management
decisions that govern the operation of the regulated facility including having the
Page 24 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
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, etc. 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 must
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 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
Page 25 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/112014)
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 90 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.
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
Page 26 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
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 111 1.
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.
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(s) of the upset;
b. The permitted facility was at the time being properly operated;
Page 27 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
c. The operator submitted notice of the upset as required in Part 111 1; 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 must be kept under the conditions of this general permit;
2. Have access to and copy, at reasonable times, any records that must 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.
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 permits 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 permits.
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.
2. 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.
Page 28 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/1/2014)
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.
9VAC25- 880 -80. (Repealed.)
9VAC25- 880 -82. (Repealed.)
9VAC25- 880 -84. (Repealed.)
9VAC25- 880 -86. (Repealed.)
9VAC25- 880 -88. (Repealed.)
9VAC25- 880 -90. (Repealed.)
9VAC25- 880 -100. Delegation of authority.
The director, or his designee, may perform any act of the board provided under this chapter,
except as limited by § 62.1 -44.14 of the Code of Virginia.
FORMS (9VAC25 -880)
Department of Environmental Quality Construction Activity Operator Permit Fee Form (rev.
01/2014)
Notice of Termination - General VPDES Permit for Discharges of Stormwater from
Construction Activities (VAR10) (rev. 01/2014)
Registration Statement - General VPDES Permit for Discharges of Stormwater from
Construction Activities (VAR10) (rev. 01/2014)
Transfer Agreement - General VPDES Permit for Discharges of Stormwater from
Construction Activities (VAR10) (rev. 01/2014)
Page 29 of 29
9VAC25 -880 (adopted 12/17/2013 - published 2/24/2014 - effective 7/112014)
File: 2167 Bio Retention.xls
Printed: 7/14/2014
BIO- RETENTION BASIN SIZING
1310- RETENTION BASIN (Virginia SWM Handbook Figure 3.11 -2)
Design Criteria: Drainage area =
0.78
ac
Imperv. Area =
0.70
ac
% Impervious =
90%
Bio Basin Area =
5.0%
Plants per 1,000 sf =
10
(based on basin size)
Shrub to Tree ratio =
3
Calculations: Basin Size:
Required Size =
1525
sf
Actual Width (W) =
25.0
Actual Length (L) =
62.0
Actual Size =
1550
sf
Plants:
Number of Plants = 16
Number of Shrubs = 12
Number of Trees = 4
Hydrograph Return Period Rec y flow Hydrographs Extension for AutoCADO Civil 3D® 2011 by Autodesk, Inc. v8
Hyd.
Hydrograph
Inflow
Peak Outflow (cfs)
Hydrograph
No.
ty pe
hyd(s)
Description
(origin)
1 -yr
2 -yr
3 -yr
5 -yr
10 -yr
25 -yr
50 -yr
100 -yr
1
Rational
- - --
- - - - - --
4.090
- - - - - --
- - - - - --
5.263
- - - - - --
- - - - - --
- - - - - --
Existing Site Runoff
2
Rational
- - - - --
- - - - --
9.153
- - - - - --
- - - - - --
11.78
- - - - - --
- - - - - --
- - - - - --
Proposed Site Runoff
3
Reservoir
2
- - - - - --
2.607
- - - - - --
- - - - - --
3.142
- - - - - --
- - - - --
- - - - - --
UG Detention
Proj. file: 2167.gpw
Tuesday, Jan 8, 2013
Hydrograph Summary Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2011 by Autodesk, Inc. v8
Hyd.
No,
Hydrograph
type
(origin)
Peak
flow
(cfs)
Time
interval
(min)
Time to
Peak
(min)
Hyd.
volume
(cult)
Inflow
hyd(s)
Maximum
elevation
(ft)
Total
strge used
(cuft)
Hydrograph
Description
1
Rational
4.090
1
5
1,227
- - - - --
- - - - --
- - - - --
Existing Site Runoff
2
Rational
9.153
1
5
2,746
- - - - --
- - - - --
- - - --
Proposed Site Runoff
3
Reservoir
2.607
1
9
2,744
2
523.77
1,835
UG Detention
2167.gpw
Return Period: 2 Year
Tuesday, Jan 8, 2013
Q (cfs)
5.00
4.00
3.00
2.00
1.00
rfill in
0 1 2
Hyd No. 1
Existing Site Runoff
Hyd. No. 1 -- 2 Year
Q (cfs)
5.00
EMM
3.00
2.00
1.00
' N 0.00
3 4 5 6 7 8 9 10
Time (min)
4
Hydrograph
Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8
Tuesday, Jan 8, 2013
Hyd. No. 1
Existing Site Runoff
Hydrograph type
= Rational
Peak discharge
= 4.090 cfs
Storm frequency
= 2 yrs
Time to peak
= 5 min
Time interval
= 1 min
Hyd. volume
= 1,227 cuft
Drainage area
= 3.760 ac
Runoff coeff.
= 0.21
Intensity
= 5.180 in /hr
Tc by User
= 5.00 min
OF Curve
= Albemarle.IDF
Asc /Rec limb fact
= 1/1
Q (cfs)
5.00
4.00
3.00
2.00
1.00
rfill in
0 1 2
Hyd No. 1
Existing Site Runoff
Hyd. No. 1 -- 2 Year
Q (cfs)
5.00
EMM
3.00
2.00
1.00
' N 0.00
3 4 5 6 7 8 9 10
Time (min)
Proposed Site Runoff
Q (cfs) Hyd. No. 2 -- 2 Year
10.00
M
01
4.00
2.00
ralrAT
Q (cfs)
10.00
4.00
2.00
OrNWAT21
0 1 2 3 4 5 6 7 8 9 10
Hyd No. 2 Time (min)
5
Hydrograph Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8
Tuesday, Jan 8, 2013
Hyd. No. 2
Proposed Site Runoff
Hydrograph type = Rational
Peak discharge
= 9.153 cfs
Storm frequency = 2 yrs
Time to peak
= 5 min
Time interval = 1 min
Hyd. volume
= 2,746 cuft
Drainage area = 3.760 ac
Runoff coeff.
= 0.47
Intensity = 5.180 in /hr
Tc by User
= 5.00 min
OF Curve = Albemarle.IDF
Asc /Rec limb fact
= 1/1
Proposed Site Runoff
Q (cfs) Hyd. No. 2 -- 2 Year
10.00
M
01
4.00
2.00
ralrAT
Q (cfs)
10.00
4.00
2.00
OrNWAT21
0 1 2 3 4 5 6 7 8 9 10
Hyd No. 2 Time (min)
Hydrograph
Report
20 22 24 26 28 30 32 34 36 38 40
6
Hydraflow Hydrographs Extension for AutoCADG Civil 3D(@ 2011 by Autodesk, Inc. v8
- Hyd No. 2
Tuesday, Jan 8, 2013
Hyd. No. 3
UG Detention
Hydrograph type
= Reservoir
Peak discharge
= 2.607 cfs
Storm frequency
= 2 yrs
Time to peak
= 9 min
Time interval
= 1 min
Hyd. volume
= 2,744 cuft
Inflow hyd. No.
= 2 - Proposed Site Runoff
Max. Elevation
= 523.77 ft
Reservoir name
= UG Detention 6-8
Max. Storage
= 1,835 cuft
Storage Indication method used.
Q (Cfs)
4
8.00
6.00
4.00
2.00
0.00
UG Detention
Hyd. No. 3 -- 2 Year
Q (Cfs)
10.00
lll�
MR
4.00
2.00
ramftv
0 2 4 6 8
10 12 14 16 18
20 22 24 26 28 30 32 34 36 38 40
42 44
- Hyd No. 3
- Hyd No. 2
Total storage used = 1,835 cuft
Time (min)
Pond Report 7
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8 Tuesday, Jan 8, 2013
Pond No. 1 - UG Detention 6 -8
Pond Data
UG Chambers -Invert elev. = 521.00 ft , Rise x Span = 4.00 x 4.00 ft , Barrel Len = 200.00 ft , No. Barrels = 1 , Slope = 0.00%, Headers = No
Stage / Storage Table
Stage (ft) Elevation (ft) Contour area (sgft) Incr. Storage (cuft) Total storage (cuft)
0.00
521.00
n/a
0
0
0.40
521.40
n/a
131
131
0.80
521.80
n/a
227
358
1.20
522.20
n/a
276
635
1.60
522.60
n/a
304
939
2.00
523.00
n/a
318
1,257
2.40
523.40
n/a
318
1,575
2.80
523.80
n/a
304
1,880
3.20
524.20
n/a
276
2,156
3.60
524.60
n/a
227
2,383
4.00
525.00
n/a
131
2,514
Culvert / Orifice Structures
Note: Culvert/Orifice outflows are analyzed under inlet (ic) and outlet (oc) control. Weir risers checked for orifice conditions (ic) and submergence (s).
Weir Structures
Storage / Discharge Table
[A]
[B]
[C]
[PrfRsr]
[A]
[B]
[C]
[D]
Rise (in)
= 8.00
0.00
0.00
0.00
Crest Len (ft)
= 0.00
0.00
0.00
0.00
Span (in)
= 8.00
0.00
0.00
0.00
Crest El. (ft)
= 0.00
0.00
0.00
0.00
No. Barrels
= 1
0
0
0
Weir Coeff.
= 3.33
3.33
3.33
3.33
Invert El. (ft)
= 521.00
0.00
0.00
0.00
Weir Type
= - --
- --
- --
- --
Length (ft)
= 20.00
0.00
0.00
0.00
Multi -Stage
= No
No
No
No
Slope ( %)
= 1.00
0.00
0.00
n/a
1.010
1.20
635
522.20
1.50 oc
N -Value
= .013
.013
.013
n/a
- --
- --
1.498
1.60
939
Orifice Coeff.
= 0.60
0.60
0.60
0.60
Exfil.(in /hr)
= 0.000 (by Contour)
- --
- --
Multi -Stage
= n/a
No
No
No
TW Elev. (ft)
= 0.00
- --
- --
- -
Note: Culvert/Orifice outflows are analyzed under inlet (ic) and outlet (oc) control. Weir risers checked for orifice conditions (ic) and submergence (s).
Stage /
Storage / Discharge Table
Stage
Storage
Elevation
Clv A
Clv B Clv C PrfRsr
Wr A
Wr B
Wr C
Wr D
Exfil
User
Total
ft
cuft
ft
cfs
cfs cfs cfs
cfs
cfs
cfs
cfs
cfs
cfs
cfs
0.00
0
521.00
0.00
- -- -- - --
- --
--
- --
- --
- --
- --
0.000
0.40
131
521.40
0.47 is
- -- - -- - --
- --
- --
- --
- --
- --
0.471
0.80
358
521.80
1.01 oc
- -- - -- - --
- --
- --
- --
- --
- --
- --
1.010
1.20
635
522.20
1.50 oc
- -- - -- - --
- --
- --
- --
- --
- --
- --
1.498
1.60
939
522.60
1.86 oc
- -- - -- - --
- --
- --
- --
- --
- --
- --
1.863
2.00
1,257
523.00
2.17 oc
- -- - -- - --
- --
- --
- --
- -
- --
- --
2.167
2.40
1,575
523.40
2.42 is
- -- - -- - --
- --
- --
- --
- --
- --
- --
2.416
2.80
1,880
523.80
2.64 is
- -- - -- - --
- -
- --
- --
- --
- --
- --
2.639
3.20
2,156
524.20
2.85 is
- -- - -- - --
- --
- --
- --
- --
- --
- --
2.845
3.60
2,383
524.60
3.04 is
- -- - -- - --
- -
- --
- --
- --
- --
- --
3.037
4.00
2,514
525.00
3.22 is
- -- - -- - --
- --
- --
- --
- --
- --
- --
3.218
Hydrograph Summary Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk. Inc. v8
Hyd.
No.
Hydrograph
type
(origin)
Peak
flow
(cfs)
Time
interval
(min)
Time to
Peak
(min)
Hyd.
volume
(cuft)
Inflow
hyd(s)
Maximum
elevation
(ft)
Total
strge used
(cult)
Hydrograph
Description
1
Rational
5.263
1
5
1,579
- - - - --
- - - - --
- - - - --
Existing Site Runoff
2
Rational
11.78
1
5
3,534
- - - - --
- - - - --
- - - - --
Proposed Site Runoff
3
Reservoir
3.142
1
9
3,532
2
524.90
2,458
UG Detention
2167.gpw
Return Period: 10 Year
Tuesday, Jan 8, 2013
9
Hydrograph Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8
Tuesday, Jan 8, 2013
Hyd. No. 1
Existing Site Runoff
Hydrograph type
= Rational
Peak discharge
= 5.263 cfs
Storm frequency
= 10 yrs
Time to peak
= 5 min
Time interval
= 1 min
Hyd. volume
= 1,579 cuft
Drainage area
= 3.760 ac
Runoff coeff.
= 0.21
Intensity
= 6.666 in /hr
Tc by User
= 5.00 min
OF Curve
= Albemarle.IDF
Asc /Rec limb fact
= 1/1
Q (cfs)
6.00
5.00
4.00
3.00
2.00
1.00
Existing Site Runoff
Hyd. No. 1 -- 10 Year
Q (cfs)
6.00
5.00
4.00
3.00
2.00
1.00
0 1 2 3 4 5 6 7 8 9 10
Time (min)
Hyd No. 1
Hydrograph Report 10
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8
Hyd. No. 2
Time to peak
Proposed Site Runoff
Hyd. volume
Hydrograph type
= Rational
Storm frequency
= 10 yrs
Time interval
= 1 min
Drainage area
= 3.760 ac
Intensity
= 6.666 in /hr
OF Curve
= Albemarle.IDF
Tuesday, Jan 8, 2013
Peak discharge
= 11.78 cfs
Time to peak
= 5 min
Hyd. volume
= 3,534 cuft
Runoff coeff.
= 0.47
Tc by User
= 5.00 min
Asc /Rec limb fact
= 1/1
Q (cfs) Proposed Site Runoff
Hyd. No. 2 - -10 Year Q (cfs)
12.00
10.00
8.00
6.00
4.00
2.00
0.00
12.00
10.00
8.00
6.00
4.00
2.00
0 00
0 1 2 3 4 5 6 7 8 9 10
Hyd No. 2 Time (min)
Hydrograph Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8
Hyd. No. 3
UG Detention
Hydrograph type
= Reservoir
Peak discharge
Storm frequency
= 10 yrs
Time to peak
Time interval
= 1 min
Hyd. volume
Inflow hyd. No.
= 2 - Proposed Site Runoff
Max. Elevation
Reservoir name
= UG Detention 6 -8
Max. Storage
Storage Indication method used.
Q (cfs)
12.00
10.00
M
mm
4.00
2.00
UG Detention
Hyd. No. 3 - -10 Year
11
Tuesday, Jan 8, 2013
= 3.142 cfs
= 9 min
= 3,532 cuft
= 524.90 ft
= 2,458 cuft
Q (cfs)
12.00
10.00
GH
ME
4.00
2.00
0.00
0.00
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time (min)
Hyd No. 3 Hyd No. 2 Total storage used = 2,458 cuft
Hydraflow Rainfall Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc, v8
Return
Period
Intensity- Duration - Frequency Equation Coefficients (FHA)
(Yrs)
B
D
E
(N /A)
1
0.0000
0.0000
0.0000
-- - - - - --
2
49.0200
10.5000
0.8200
-- - - - - --
3
0.0000
0.0000
0.0000
-- - - - - --
5
55.7100
11.5000
0.8000
-- - - - - --
10
46.9500
9.5000
0.7300
-- - - - - --
25
40.1100
7.7500
0.6600
-- - - - - --
50
35.6800
6.5000
0.6100
-- - - - - --
100
31.0900
5.0000
0.5500
-- - - - - --
File name: Albemarle.IDF
Intensity = B / (Tc + D) ^E
12
Tuesday, Jan 8, 2013
Return
Period
Intensity Values (in /hr)
(Yrs)
5 min
10
15
20
25
30
35
40
45
50
55
60
1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2
5.18
4.12
3.44
2.97
2.63
2.36
2.14
1.97
1.82
1.70
1.59
1.50
3
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
5
5.91
4.79
4.05
3.53
3.13
2.83
2.58
2.38
2.21
2.06
1.94
1.83
10
6.67
5.37
4.55
3.97
3.54
3.21
2.94
2.72
2.54
2.38
2.24
2.12
25
7.48
6.01
5.10
4.47
4.01
3.65
3.36
3.13
2.93
2.76
2.61
2.48
50
8.04
6.45
5.49
4.83
4.35
3.98
3.68
3.43
3.22
3.05
2.89
2.76
100
8.76
7.01
5.98
5.29
4.79
4.40
4.09
3.83
3.62
3.43
3.27
3.13
Tc = time in minutes. Values may exceed 60.
Prarin files name- RnCVnnhom nrn
Storm
Rainfall Precipitation Table (in)
Distribution
1 -yr
2 -yr
3 -yr
5 -yr
10 -yr
25 -yr
50 -yr
100 -yr
SCS 24 -hour
3.00
2.60
0.00
3.30
3.90
4.70
5.40
6.10
SCS 6 -Hr
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Huff -1st
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Huff -2nd
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Huff -3rd
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Huff -4th
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Huff -Indy
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Custom
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Hydrograph Return Period RecPPflow Hydrographs Extension for AutoCADO Civil 3D® 2011 by Autodesk, Inc. v8
Hyd.
Hydrograph
Inflow
Peak Outflow (cfs)
Hydrograph
No.
type
hyd(s)
Description
(origin)
1 -yr
2 -yr
3 -yr
5 -yr
10 -yr
25 -yr
50 -yr
100 -yr
1
Rational
- - - --
- - - - - --
4.090
- - - - - --
- - - - - --
5.263
- - - - - --
- - - - - --
- - - - - --
Existing Site Runoff
2
Rational
- - - - --
- - - - - --
9.153
- - - - - --
- - - - - --
11.78
- - - - - --
- - - - - --
- - - - - --
Proposed Site Runoff
3
Reservoir
2
- - - - - --
2.607
- - - - - --
- - - - - --
3.142
- - - - - --
- - - - - --
- - - - --
UG Detention
Proj. file: 2167.gpw
Tuesday, Jan 8, 2013
Hydrograph Summary Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8
Hyd.
No.
Hydrograph
type
(origin)
Peak
flow
(cfs)
Time
interval
(min)
Time to
Peak
(min)
Hyd.
volume
(cuft)
Inflow
hyd(s)
Maximum
elevation
(ft)
Total
strge used
(cuft)
Hydrograph
Description
1
Rational
4.090
1
5
1,227
- - - - --
- - - - --
- - - - --
Existing Site Runoff
2
Rational
9.153
1
5
2,746
- - - - --
- - - - --
- - - - --
Proposed Site Runoff
3
Reservoir
2.607
1
9
2,744
2
523.77
1,835
UG Detention
2167.gpw
Return Period: 2 Year
Tuesday, Jan 8, 2013
4
Hydrograph Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8
Tuesday, Jan 8, 2013
Hyd. No. 1
Existing Site Runoff
Hydrograph type
= Rational
Peak discharge
= 4.090 cfs
Storm frequency
= 2 yrs
Time to peak
= 5 min
Time interval
= 1 min
Hyd. volume
= 1,227 cuft
Drainage area
= 3.760 ac
Runoff coeff.
= 0.21
Intensity
= 5.180 in /hr
Tc by User
= 5.00 min
OF Curve
= Albemarle.IDF
Asc /Rec limb fact
= 1/1
Q (cfs)
5.00
4.00
3.00
2.00
1.00
rawiTilis
Existing Site Runoff
Hyd. No. 1 -- 2 Year
Q (cfs)
5.00
4.00
3.00
2.00
1.00
MMTO
0 1 2 3 4 5 6 7 8 9 10
Time (min)
Hyd No. 1
Q (cfs)
10.00
4.00
2.00
Proposed Site Runoff
Hyd. No. 2 -- 2 Year
Q (cfs)
10.00
: 11
KI-1 61
4.00
2.00
M rayli A
0 1 2 3 4 5 6 7 8 9 10
Hyd No. 2 Time (min)
5
Hydrograph Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8
Tuesday, Jan 8, 2013
Hyd. No. 2
Proposed Site Runoff
Hydrograph type = Rational
Peak discharge
= 9.153 cfs
Storm frequency = 2 yrs
Time to peak
= 5 min
Time interval = 1 min
Hyd. volume
= 2,746 cult
Drainage area = 3.760 ac
Runoff coeff.
= 0.47
Intensity = 5.180 in /hr
Tc by User
= 5.00 min
OF Curve = Albemarle.IDF
Asc /Rec limb fact
= 1/1
Q (cfs)
10.00
4.00
2.00
Proposed Site Runoff
Hyd. No. 2 -- 2 Year
Q (cfs)
10.00
: 11
KI-1 61
4.00
2.00
M rayli A
0 1 2 3 4 5 6 7 8 9 10
Hyd No. 2 Time (min)
Hydrograph Report 6
Hydraflow Hydrographs Extension for AutoCADO Civil 3D@ 2011 by Autodesk, Inc. v8
Tuesday, Jan 8, 2013
Hyd. No. 3
UG Detention
Hydrograph type
= Reservoir
Peak discharge
= 2.607 cfs
Storm frequency
= 2 yrs
Time to peak
= 9 min
Time interval
= 1 min
Hyd. volume
= 2,744 cuft
Inflow hyd. No.
= 2 - Proposed Site Runoff
Max. Elevation
= 523.77 ft
Reservoir name
= UG Detention 6 -8
Max. Storage
= 1,835 cuft
Storage Indication method used.
Q (cfs)
10.00
11
4.00
2.00
Hm
UG Detention
Hyd. No. 3 -- 2 Year
Q (cfs)
10.00
4.00
2.00
11111T, an
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44
Time (min)
Hyd No. 3 Hyd No. 2 Total storage used = 1,835 cuft
Pond Report '
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8 Tuesday, Jan 8, 2013
Pond No. 1 - UG Detention 6 -8
Pond Data
UG Chambers - Invert elev. = 521.00 ft , Rise x Span = 4.00 x 4.00 ft , Barrel Len = 200.00 ft , No. Barrels = 1 , Slope = 0.00%, Headers = No
Stage / Storage Table
Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cuft)
0.00
521.00
n/a
0
0
0.40
521.40
n/a
131
131
0.80
521.80
n/a
227
358
1.20
522.20
n/a
276
635
1.60
522.60
n/a
304
939
2.00
523.00
n/a
318
1,257
2.40
523.40
n/a
318
1,575
2.80
523.80
n/a
304
1,880
3.20
524.20
n/a
276
2,156
3.60
524.60
n/a
227
2,383
4.00
525.00
n/a
131
2,514
Culvert / Orifice Structures
Note: Culvert/Orifice outflows are analyzed under inlet (ic) and outlet (cc) control. Weir risers checked for orifice conditions (ic) and submergence (s).
Weir Structures
Storage / Discharge Table
Stage
[A]
[B]
[C]
[PrfRsr]
Total
[A]
[B]
[C]
[D]
Rise (in)
= 8.00
0.00
0.00
0.00
Crest Len (ft)
= 0.00
0.00
0.00
0.00
Span (in)
= 8.00
0.00
0.00
0.00
Crest El. (ft)
= 0.00
0.00
0.00
0.00
No. Barrels
= 1
0
0
0
Weir Coeff.
= 3.33
3.33
3.33
3.33
Invert El. (ft)
= 521.00
0.00
0.00
0.00
Weir Type
= - --
- --
- --
- --
Length (ft)
= 20.00
0.00
0.00
0.00
Multi -Stage
= No
No
No
No
Slope ( %)
= 1.00
0.00
0.00
n/a
2.845
3.60
2,383
524.60
3.04 is
N -Value
= .013
.013
.013
n/a
3.22 is
- -- - -- - -- - -- - -- - -- - -- - -- - --
3.218
Orifice Coeff.
= 0.60
0.60
0.60
0.60
Exfil.(in /hr)
= 0.000 (by Contour)
Multi -Stage
= n/a
No
No
No
TW Elev. (ft)
= 0.00
Note: Culvert/Orifice outflows are analyzed under inlet (ic) and outlet (cc) control. Weir risers checked for orifice conditions (ic) and submergence (s).
Stage /
Storage / Discharge Table
Stage
Storage
Elevation
Clv A
Clv B Clv C PrfRsr Wr A Wr B Wr C Wr D Exfil User
Total
ft
cuft
ft
cfs
cfs cfs cfs cfs cfs cfs cfs cfs cfs
cfs
0.00
0
521.00
0.00
- -- - -- - -- - -- - -- - -- - -- - -- - --
0.000
0.40
131
521.40
0.47 is
- -- - -- - -- - -- - -- - -- - -- - --
0.471
0.80
358
521.80
1.01 oc
- -- - -- - -- - -- - -- - -- - -- - -- - --
1.010
1.20
635
522.20
1.50 oc
- -- - -- - -- - -- - -- - -- - -- - -- - --
1.498
1.60
939
522.60
1.86 oc
- -- - -- - -- - -- - -- - -- - -- - -- - --
1.863
2.00
1,257
523.00
2.17 oc
- -- - -- - -- - -- - -- - -- - -- - -- - --
2.167
2.40
1,575
523.40
2.42 is
- -- - -- - -- - -- - -- - -- - - - -- - --
2.416
2.80
1,880
523.80
2.64 is
- -- - -- - -- - -- - -- - -- - -- - -- - --
2.639
3.20
2,156
524.20
2.85 is
- -- - -- - -- - -- - -- - -- - -- - -- - --
2.845
3.60
2,383
524.60
3.04 is
- -- - -- - -- - -- - -- - -- - -- - -- - --
3.037
4.00
2,514
525.00
3.22 is
- -- - -- - -- - -- - -- - -- - -- - -- - --
3.218
Hydrograph Summary Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2011 by Autodesk, Inc. v8
Hyd.
No.
Hydrograph
type
(origin)
Peak
flow
(cfs)
Time
interval
(min)
Time to
Peak
(min)
Hyd.
volume
(cult)
Inflow
hyd(s)
Maximum
elevation
(ft)
Total
strge used
(cuft)
Hydrograph
Description
1
Rational
5.263
1
5
1,579
- - - - --
- - - --
- - - - --
Existing Site Runoff
2
Rational
11.78
1
5
3,534
- - - - --
- - - - --
- - - - --
Proposed Site Runoff
3
Reservoir
3.142
1
9
3,532
2
524.90
2,458
UG Detention
2167.gpw
Return Period: 10 Year
Tuesday, Jan 8, 2013
Existing Site Runoff
Q (cfs) Hyd. No. 1 -- 10 Year
6.00
5.00
4.00
3.00
2.00
1.00
Q (cfs)
6.00
5.00
4.00
3.00
2.00
1.00
0 00 Z I I I I I I I ' ' " 0.00
0 1 2 3 4 5 6 7 8 9 10
Time (min)
Hyd No. 1
9
Hydrograph
Report
Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2011 by Autodesk, Inc. v8
Tuesday, Jan 8, 2013
Hyd. No. 1
Existing Site Runoff
Hydrograph type
= Rational
Peak discharge
= 5.263 cfs
Storm frequency
= 10 yrs
Time to peak
= 5 min
Time interval
= 1 min
Hyd. volume
= 1,579 cuft
Drainage area
= 3.760 ac
Runoff coeff.
= 0.21
Intensity
= 6.666 in /hr
Tc by User
= 5.00 min
OF Curve
= Albemarle.IDF
Asc /Rec limb fact
= 1/1
Existing Site Runoff
Q (cfs) Hyd. No. 1 -- 10 Year
6.00
5.00
4.00
3.00
2.00
1.00
Q (cfs)
6.00
5.00
4.00
3.00
2.00
1.00
0 00 Z I I I I I I I ' ' " 0.00
0 1 2 3 4 5 6 7 8 9 10
Time (min)
Hyd No. 1
Hydrograph Report 10
Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2011 by Autodesk, Inc. v8
Tuesday, Jan 8, 2013
Hyd. No. 2
Proposed Site Runoff
Hydrograph type
= Rational
Peak discharge
= 11.78 cfs
Storm frequency
= 10 yrs
Time to peak
= 5 min
Time interval
= 1 min
Hyd. volume
= 3,534 cuft
Drainage area
= 3.760 ac
Runoff coeff.
= 0.47
Intensity
= 6.666 in /hr
Tc by User
= 5.00 min
OF Curve
= Albemarle.IDF
Asc /Rec limb fact
= 1/1
Q (cfs)
Proposed Site Runoff Hyd. No. 2 - -10 Year Q (cfs )
12.00
10.00
8.00
6.00
4.00
2.00
0.00
12.00
10.00
8.00
6.00
4.00
2.00
0 00
0 1 2 3 4 5 6 7 8 9 10
Hyd No. 2
Time (min)
Hydrograph
Report
Hydraflow Hydrographs Extension for AutoCADO Civil 3D@ 2011 by Autodesk, Inc. v8
Tuesday, Jan 8, 2013
Hyd. No. 3
UG Detention
Hydrograph type
= Reservoir
Peak discharge
= 3.142 cfs
Storm frequency
= 10yrs
Time to peak
= 9 min
Time interval
= 1 min
Hyd. volume
= 3,532 cuft
Inflow hyd. No.
= 2 - Proposed Site Runoff
Max. Elevation
= 524.90 ft
Reservoir name
= UG Detention 6-8
Max. Storage
= 2,458 cuft
Storage Indication method used
Q (efs)
12.00
10.00
[.*We]
AM
4.00
2.00
UG Detention
Hyd. No. 3 10 Year
-- --- - ----
Al
Q (Cfs)
12.00
10.00
M
PKIR
4.00
2.00
0.00 0.00
0 2 4 6 8 10 1 1 2 14 16 18 2 1 0 22 24 26 28 30 32 34 36 38 40 42 44 46
Time (min)
- Hyd No. 3 - Hyd No. 2 Total storage used = 2,458 cuft
Hydraflow Rainfall Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2011 by Autodesk, Inc. v8
Return
Period
Intensity- Duration - Frequency Equation Coefficients (FHA)
(Yrs)
B
D
E
(N /A)
1
0.0000
0.0000
0.0000
-- - - - - --
2
49.0200
10.5000
0.8200
-- - - - - --
3
0.0000
0.0000
0.0000
-- - - - - --
5
55.7100
11.5000
0.8000
-- - - - - --
10
46.9500
9.5000
0.7300
-- - - - - --
25
40.1100
7.7500
0.6600
-- - - - - --
50
35.6800
6.5000
0.6100
-- - - - - --
100
31.0900
5.0000
0.5500
-- - - - - --
File name: Albemarle.IDF
Intensity = B / (Tc + D) ^E
12
Tuesday, Jan 8, 2013
Return
Period
Intensity Values (in /hr)
(Yrs)
5 min
10
15
20
25
30
35
40
45
50
55
60
1
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2
5.18
4.12
3.44
2.97
2.63
2.36
2.14
1.97
1.82
1.70
1.59
1.50
3
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
5
5.91
4.79
4.05
3.53
3.13
2.83
2.58
2.38
2.21
2.06
1.94
1.83
10
6.67
5.37
4.55
3.97
3.54
3.21
2.94
2.72
2.54
2.38
2.24
2.12
25
7.48
6.01
5.10
4.47
4.01
3.65
3.36
3.13
2.93
2.76
2.61
2.48
50
8.04
6.45
5.49
4.83
4.35
3.98
3.68
3.43
3.22
3.05
2.89
2.76
100
8.76
7.01
5.98
5.29
4.79
4.40
4.09
3.83
3.62
3.43
3.27
3.13
Tc = time in minutes. Values may exceed 60.
Precio. file name: Rockinaham.oco
Storm
Rainfall Precipitation Table (in)
Distribution
1 -yr
2 -yr
3 -yr
5 -yr
10 -yr
25 -yr
50 -yr
100 -yr
SCS 24 -hour
3.00
2.60
0.00
3.30
3.90
4.70
5.40
6.10
SCS 6 -Hr
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Huff -1st
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Huff -2nd
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Huff -3rd
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Huff -4th
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Huff -Indy
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Custom
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
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Appendix G — Subcontractor Certifications /Agreements
SUBCONTRACTOR CERTIFICATION
STORMWATER POLLUTION PREVENTION PLAN
Project Number:
Project Title:
Operator(s):
As a subcontractor, you are required to comply with the Stormwater Pollution Prevention Plan (SWPPP) for
any work that you perform on -site. Any person or group who violates any condition of the SWPPP may be
subject to substantial penalties or loss of contract. You are encouraged to advise each of your employees
working on this project of the requirements of the SWPPP. A copy of the SWPPP is available for your
review at the office trailer.
Each subcontractor engaged in activities at the construction site that could impact stormwater must be
identified and sign the following certification statement:
I certify under the penalty of law that I have read and understand the terms and conditions of the
SWPPP for the above designated project and agree to follow the BMPs and practices described in
the SWPPP.
This certification is hereby signed in reference to the above named project:
Company:
Address:
Telephone Number:
Type of construction service to be provided:
Signature:
Title:
Date:
Appendix G — Subcontractor Certifications /Agreements
SUBCONTRACTOR CERTIFICATION
STORMWATER POLLUTION PREVENTION PLAN
Project Number:
Project Title:
Operator(s):
As a subcontractor, you are required to comply with the Stormwater Pollution Prevention Plan (SWPPP) for
any work that you perform on -site. Any person or group who violates any condition of the SWPPP may be
subject to substantial penalties or loss of contract. You are encouraged to advise each of your employees
working on this project of the requirements of the SWPPP. A copy of the SWPPP is available for your
review at the office trailer.
Each subcontractor engaged in activities at the construction site that could impact stormwater must be
identified and sign the following certification statement:
I certify under the penalty of law that I have read and understand the terms and conditions of the
SWPPP for the above designated project and agree to follow the BMPs and practices described in
the SWPPP.
This certification is hereby signed in reference to the above named project:
Company:
Address:
Telephone Number:
Type of construction service to be provided:
Signature:
Title:
Date:
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Appendix I — Delegation of Authority Form
Delegation of Authority
I, (name), hereby designate the person or specifically described
position below to be a duly authorized representative for the purpose of overseeing compliance
with environmental requirements, including the Construction General Permit, at the
construction site. The designee is authorized to
sign any reports, stormwater pollution prevention plans and all other documents required by the
permit.
(name of person or position)
(company)
(address)
(city, state, zip)
(phone)
By signing this authorization, I confirm that I meet the requirements to make such a designation
as set forth in (Reference State Permit), and that the
designee above meets the definition of a "duly authorized representative" as set forth in
(Reference State Permit).
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.
Name:
Company:
Title:
Signature:
Date:
Appendix I — Delegation of Authority Form
Delegation of Authority
1, (name), hereby designate the person or specifically described
position below to be a duly authorized representative for the purpose of overseeing compliance
with environmental requirements, including the Construction General Permit, at the
construction site. The designee is authorized to
sign any reports, stormwater pollution prevention plans and all other documents required by the
permit.
(name of person or position)
(company)
(address)
(city, state, zip)
(phone)
By signing this authorization, I confirm that I meet the requirements to make such a designation
as set forth in (Reference State Permit), and that the
designee above meets the definition of a "duly authorized representative" as set forth in
(Reference State Permit).
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.
Name:
Company:
Title:
Signature:
Date:
General Permit Notice of Termination -
Construction Activity Stormwater Discharges (VAR10)
(Please Type or Print All Information)
1. Construction Activity Operator:
Mailing
City:
State: Zip: Phone:
2. Name and Location of Construction Activity (As listed on registration statement):
City, Town or County:
If street address unavailable: Latitude
3. Stormwater General Permit Number:
State: Zip:,
Longitude
4. The Reason for Terminating Coverage Under the General Permit (The construction activity operator may only submit a Notice
of Termination after one or more of the conditions below have been met):
❑ Necessary post- construction 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 is responsible;
❑ Another operator has assumed control over all areas of the site that have not been finally stabilized and
obtained coverage for the ongoing discharge;
❑ Coverage under an alternative VPDES or State permit has been obtained; or
❑ For residential construction only, temporary stabilization has been completed and the residence has been
transferred to the homeowner.
The Notice of Termination must be submitted within 30 days of one of the above conditions being met. Authorization to
discharge terminates at midnight on the date that the Notice of Termination is submitted.
5. Permanent Control measures Installed: Attach a list of permanent control measures (both structural and non - structural) that will be
installed at the construction site. For each BMP, include the following information: (a) Type of control measure installed and the date
that it became functional as a permanent control measure; (b) Geographic location (county or city and Hydrologic Unit Code) (latitude
and longitude may additionally be included if available); (c) Waterbody the control measures discharge into; and, (d) Number of acres
that will be treated (to the nearest one -tenth of an acre). If no permanent control measures were installed please check this box ❑
6. Participation in a Regional Stormwater Management Plan:, Where applicable, attach the following information related to
participation in a regional stormwater management plan: (a) type of regional facility to which the site discharges; (b) geographic
location of any regional facility to which the site discharges (county or city and Hydrologic Unit Code); (c) geographic location of
the site (county or city and Hydrologic Unit Code) (latitude and longitude may additionally be included if available); and (d) number
of acres treated by a regional facility.
7. Nutrient Offsets: Where applicable, attach the following information related to nutrient offsets that were acquired in accordance
with §62.1- 44.15:35 of the Code of Virginia: (a) name of the broker from which offsets were acquired; (b) geographic location
(county or city and Hydrologic Unit Code) of the broker's offset generating facility; (c) number of nutrient offsets acquired (Ibs.
per acre per year); and (d) nutrient reductions achieved on site (Ibs. per acre per year).
8. Certification:
"1 certify under penalty of law that I have read and understand this notice of termination 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."
rint Name: Title:
Signed
Date:
(Please sign in INK. The person signing this form must be associated with the operator identified in Item #1 above.)
Mail to: Department of Environmental Quality, Office of Stormwater Permits, 10th Floor, P.O. Box 1105, Richmond, VA 23218
(DEQ 199 -147) (06/13)
INSTRUCTIONS for FORM DEQ 199 -147
General Permit Notice of Termination - Construction Activity Stormwater Discharges
General
A General Permit Notice of Termination must be submitted
when an operator no longer wishes to be covered under the
General Permit for Stormwater Discharges from Construction
Activities.
Mail to: Department of Environmental Quality
Office of Stormwater Permits, 10'h Floor
P.O. Box 1105
Richmond, VA 23218
Section 1 Activity Operator Information
Give the legal name of the person, firm, public organization,
or any other entity that was issued the general permit for
the site described in this Notice of Termination. Do not use
a colloquial name. Enter the complete address and phone
number of the operator.
Section 2 Activity Location Information
Enter the activity's official name and complete street
address, including city, state and ZIP code. If the activity or
site lacks a street address, indicate the latitude and
longitude to the nearest 15 seconds of the approximate
center of the site.
Section 3 Permit Information
Enter the existing Stormwater General Permit number
assigned to the activity or site identified in Section 1 that the
operator wishes to be terminated.
Section 4 Reason for Termination
Check the appropriate statement indicating the reason for
submitting this Notice of Termination. The Notice of
Termination may only be submitted after one or more of the
following conditions have been met:
1. Necessary post- construction control measures
included in the SWPPP for the site are in place and
functioning and final stabilization has been achieved
on all portions of the site for which the operator is
responsible;
2. Another operator has assumed control over all areas
of the site that have not been finally stabilized;
3. Coverage under an alternative VPDES or State
permit has been obtained; or
4. For residential construction only, temporary
stabilization has been completed and the residence
has been transferred to the homeowner.
The Notice of Termination must be submitted within 30
days of one of the above conditions being met.
Authorization to discharge terminates at midnight on the
date that the Notice of Termination is submitted.
Section 5 Permanent Control Measures Installed
Attach a list of the permanent control measures (both
structural and non - structural) that will be installed at the
construction site. For each control measure, include the
following information:
(a) Type of control measure installed
(b) Geographic location (county or city and Hydrologic
Unit Code)
(c) Waterbody the control measure discharge into
(d)Number of acres that will be treated (to the nearest
one -tenth of an acre)
Check the box if no permanent control measures were
installed.
Section 6 Participation in a Regional Stormwater
Management Plan
Where applicable, attach the following information related
to participation in a regional stormwater management plan:
(a) type of regional facility to which the site discharges; (b)
geographic location of any regional facility to which the site
discharges (county or city and Hydrologic Unit Code); (c)
geographic location of the site (county or city and
Hydrologic Unit Code) (latitude and longitude may
additionally be included if available); and (d) number of
acres treated by a regional facility.
Section 7 Nutrient Offsets
Where applicable, attach the following information related
to nutrient offsets that were acquired in accordance with
§62.1- 44.15:35 of the Code of Virginia: (a) name of the
broker from which offsets were acquired; (b) geographic
location (county or city and Hydrologic Unit Code) of the
broker's offset generating facility; (c) number of nutrient
offsets acquired (Ibs. per acre per year); and (d) nutrient
reductions achieved on site (Ibs. per acre per year).
Section 8 Certification
State statutes provide for severe penalties for submitting
false information on this Notice of Termination.
State regulations require this Notice of Termination to be
signed as follows:
For a corporation: by a responsible corporate officer.
For the purpose of this section, a responsible corporate
officer means: (1) 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- or decision - making functions for the
corporation, or (2) the manager of one or more
manufacturing, production, or operating facilities provided
the manager is authorized to make management decisions
which 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 environmental 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 permit
application requirements; and where authority to sign
documents has been assigned or delegated to the
manager in accordance with corporate procedures
For a partnership or sole proprietorship: by a general
partner or the proprietor; or
For a municipality, state, Federal, or other public
facility: by either a principal executive officer or ranking
elected official.
The Department of Environmental Quality reserves the right to request additional information not directly addressed by
the registration statement if, in its discretion a facility or operation poses a potential impact on water quality.
(DEQ 199 -147) (06/13)
General Permit Notice of Termination
Permanent Control Measure(s) List
Type of Measure
Installed
Date Functional
Location
(county/city)
Hydrologic Unit Code
(HUC)
(ex. JL01 or
020801010101 )
Waterbody
of discharge
Number of Acres
Treated
(to the nearest
1 10th acre
Bio- Retention
Albemarle Co.
JR11
Herring Branch
0.8 Acres total
Underground
Detention
Albemarle Co.
JR11
Herring Branch
0.8 Acres total
Underground
Detention
Albemarle Co.
JR11
Herring Branch
1.5 Acres total
General Permit for Discharges of Stormwater from Construction Activities
(VAR10)
Transfer Agreement
Instructions: The General Permit for Discharges of Stormwater from Construction Activities
may be automatically transferred to a new operator if the current operator notifies the permit -
issuing authority at least 30 days in advance of the proposed transfer of the title to the facility or
property, the notice includes a written agreement between the existing and new operator
containing a specific date for transfer of permit responsibility, coverage, and liability between
them.
Please mail the original copy of this agreement to:
Department of Environmental Quality
Office of Stormwater Permits, 10th Floor
P.O. Box 1105
Richmond, VA 23218
Permit Coverage Number:
Construction Activity Name:
Date of Transfer:
CURRENT OPERATOR (The permit coverage was authorized for this operator):
Construction Activity Operator:
Address:
City:
Daytime Phone Number:
State: Zip:
"I hereby agree to the transfer of the above referenced Construction Stormwater General Permit
coverage."
Print Name:
Signed:
Title:
Date:
NEW OPERATOR (The permit coverage will be transferred to this operator):
Construction Activity Operator:
Address:
City:
Daytime Phone Number:
State: Zip:
"I hereby agree to the transfer of the above referenced Construction Stormwater General Permit
coverage, and agree to accept all permit responsibility, coverage, and liability of the permit."
Print Name:
Signed:
Title:
Date:
(Please sign in INK and submit the original to DEQ at the above referenced address and retain
a copy for your files.)
(DEQ 199 -191) (06/13)
CONTACTS:
Erosion and Sediment Control Administrator
Albemarle County:
(434) 972 -4126
City of Charlottesville:
Augusta County:
(540) 245 -5700
City of Harrisonburg:
Bath County:
(540) 839 -7236
City of Staunton:
Frederick County:
(540) 665 -5643
City of Waynesboro:
Greene County:
(434) 985 -5282
Highland County:
Madison County:
(540) 948 -6102
Nelson County:
(434) 263 -7082
Orange County:
(540) 672 -4347
Page County:
(540) 743 -1324
Rockbridge County:
(540) 464 -9662
Rockingham County:
(540) 564 -3047
Shenandoah County:
(540) 459 -6190
Warren County:
(540) 636 -3354
Department of Environmental Quality
Tidewater Regional Office Virginia Beach
Piedmont Regional Office Richmond /Glen Allen
Northern Regional Office Woodbridge
Valley Regional Office
Blue Ridge Regional Office
Southwest Regional Office
Other DEQ Locations:
Central Office
Air Monitoring
Surface Water Investigations
Harrisonburg
Lynchburg/Roanoke
Abington
Richmond
Richmond
Charlottesville
(757) 518 -2000
(804) 527 -5020
(703) 583 -3800
(540) 574 -7800
(434) 582 -5120
(276) 676 -4800
(804) 698 -4000
(804) 698 -4424
(434) 293 -1020
(434) 970 -3182
(540) 432 -7700
(540) 332 -3862
(540) 942 -6604
(540) 463 -2323
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Additional SWPPP Rules for 2014 Permits,
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) and a copy of the general VPDES
permit must be kept with SWPPP books.
Qualified personnel shall inspect for evidence that the approved erosion and sediment control plan has
not been properly implemented. The following should be looked for:
(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 sediments 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 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 outside of the approved area to be disturbed;
(i) Pollutant generating activities identified in the pollution prevention plan for the proper
implementation, maintenance and effectiveness of the procedures and practices.
(j) Pollutant generating activities not identified in the pollution prevention plan and
(k) Identify and document the presence of any evidence of the discharge of pollutants prohibited by
this general permit.
The operator shall implement the corrective action(s) identified as a result of an inspection as soon as
practicable but no later than seven days after discovery.
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.
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.
The operator shall update the SWPPP no later than seven days following any modification:
Construction activities temporarily or permanently cease on a portion of the site; and Stabilization
measures are initiated.
Areas that have reached final stabilization and where no further SWPPP or inspection requirements
apply.
All properties that are no longer under the legal control of the operator and the dates on which the
operator no longer had legal control over each property.
The date of any prohibited discharges, the discharge volume released, and what actions were taken
to minimize the impact of the release.
Measures taken to prevent the reoccurrence of any prohibited discharge.
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