HomeMy WebLinkAboutWPO201800030 Other 2018-05-04 (3)pF AL
COUNTY OF ALBEMARLE
$ Department of Community Development
401 McIntire Road, North Wing
Charlottesville, Virginia 22902-4596
Tel. (434) 296-5832 • Fax (434) 972-4126
�'IRG1l�itA
Stormwater Pollution Prevention Plan (SWPPP)
For Construction Activities At:
Project Name: Charlottesville Albemarle SPCA
Address: 3355 Berkmar Dr
Charlottesville VA 22901
Prepared by:
Name: Timmons Group
Prepared for:
Name: Albemarle Society for the Prevention of Cruelty to Animals Inc
SWPPP Preparation Date: May 4, 2018
NOTE: FOR REVIEW PURPOSES ONLY. SWPPP TO BE FINALIZED PRIOR TO PLAN
APPROVAL/LAND DISTURABANCE APPLICATION
(This document is to be made publicly available according to 9VAC25-880-70, Part II, section D)
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
CONTENTS: (from Albemarle County Code Sec. 17-405)
1. Registration statement
2. Notice of general permit coverage
3. Nature of activity
4. Erosion and Sediment Control Plan.
5. Stormwater Management Plan
6. Pollution Prevention Plan.
7. Discharges to impaired waters, surface waters within an applicable TMDL wasteload
allocation, and exceptional waters.
8. Qualified personnel
9. Signed Certification
10. Delegation of authority.
11. General permit copy
12. Inspection logs
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 1. Registration statement
(Provide a signed completed copy of the DEQ registration statement)
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Registration Statement
General VPDES Permit for Discharges of Stormwater from Construction Activities (VAR10)
(Please Type or Print All Information)
1. Construction Activity Operator: (General permit coverage will be issued to this operator. The Certification in Item #12 must be
signed by the appropriate person associated with this operator.)
Name:
Contact:
Mailing Address:
City: State: Zip: Phone:
Email address (if available):
Indicate if DEQ may transmit general permit correspondence electronically: Yes ❑ No ❑
2. Existing General Permit Registration Number (for renewals only):
3. Name and Location of the Construction Activity:
Name:
Address (if available):
City: State: Zip:
County (if not located within a City):
Latitude (decimal degrees): Longitude (decimal degrees):
Name and Location of all Off -site Support Activities to be covered under the general permit:
Name:
Address (if available):
City: State: Zip:
County (if not located within a City):
Latitude (decimal degrees): Longitude (decimal degrees):
4. Status of the Construction Activity (check only one): Federal ❑ State ❑ Public ❑ Private ❑
5. Nature of the Construction Activity (e.g., commercial, industrial, residential, agricultural, oil and gas, etc.):
6. Name of the Receiving Water(s) and Hydrologic Unit Code (HUC):
Name: Name:
HUC: HUC:
7. If the discharge is through a Municipal Separate Storm Sewer System (MS4), the name of the MS4 operator:
8.
4
Estimated Project Start and Completion Date:
Start Date (mm/dd/yyyy): Completion Date (mm/dd/yyyy):
Total Land Area of Development (to the nearest one -hundredth acre):
Estimated Area to be Disturbed (to the nearest one -hundredth acre):
10. Is the area to be disturbed part of a larger common plan of development or sale? Yes ❑ No ❑
11. A stormwater pollution prevention plan (SWPPP) must be prepared in accordance with the requirements of the General
VPDES Permit for Discharges of Stormwater from Construction Activities prior to submitting this Registration Statement.
By signing this Registration Statement the operator is certifying that the SWPPP has been prepared.
12. Certification: "I certify under penalty of law that I have read and understand this Registration Statement and that this document
and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and
evaluated the information submitted. Based on my inquiry of the person or persons who manage the system or those persons
directly responsible for gathering the information, the information submitted is to the best of my knowledge and belief true,
accurate, and complete. I am aware that there are significant penalties for submitting false information including the possibility of
fine and imprisonment for knowing violations."
Printed Name:
Signature:
(Please sign in INK.
Item #1.)
Title:
Date:
This Certification must be signed by the appropriate person associated with the operator identified in
07/2014 Page 1 of 1
Instructions for Completing the Registration Statement
General VPDES Permit for Discharges of Stormwater from Construction Activities (VAR10)
GENERAL
A. Coverage Under this General Permit.
Any operator applying for coverage under this general permit who is
required to submit a Registration Statement (see Section B below)
must submit a complete Registration Statement to the Department.
The Registration Statement serves as a Notice of Intent for coverage
under the General VPDES Permit for Discharges of Stormwater from
Construction Activities (VAR10).
B. Single-family Detached Residential Structures.
Operators with an existing stormwater discharge or proposing a new
stormwater discharge associated with the construction of a single-
family detached residential structure are not required to submit a
Registration Statement or the Department of Environmental Quality
(DEQ) portion of the general permit fee.
Operators of these types of discharges are authorized to discharge
under this general permit immediately upon the general permit's
effective date of July 1, 2014.
C. To Apply for Permit Coverage.
1. New Construction Activities. Any operator proposing a new
stormwater discharge from construction activities shall submit a
complete Registration Statement to the Department prior to the
commencement of land disturbance, unless exempted by Section B
above. 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 immediately
authorized to discharge under this general permit and must submit a
complete Registration Statement to the Department no later than 30
days after commencing land disturbance; documentation to
substantiate the occurrence of the public emergency must
accompany the Registration Statement.
2. Existing Construction Activities. Any operator that was
authorized to discharge under the general permit issued in 2009,
and who intends to continue coverage under this general permit,
shall submit a complete Registration Statement to the Department
on or before June 1, 2014, unless exempted by Section B above.
D. Where to Submit Registration Statements.
All Registration Statements should be submitted to:
Department of Environmental Quality
Office of Stormwater Management, 10" Floor
P.O. Box 1105
Richmond, VA 23218
LINE -BY-LINE INSTRUCTIONS
Item 1: Construction Activity Operator Information.
"Operator" means the owner or operator of any facility or activity
subject to the Stormwater Management Act and regulations. In the
context of stormwater associated with a large or small construction
activity, operator means any person associated with a construction
project that meets either of the following two criteria: (i) the person has
direct operational control over construction plans and specifications,
including the ability to make modifications to those plans and
specifications or (ii) the person has day-to-day operational control of
those activities at a project that are necessary to ensure compliance
with a stormwater pollution prevention plan for the site or other state
permit or VSMP authority permit conditions (i.e., they are authorized to
direct workers at a site to carry out activities required by the
stormwater pollution prevention plan or comply with other permit
conditions).
The entities that are considered operators will commonly consist of the
owner or developer of a project (the party with control of project plans
and specifications) or the general contractor (the party with day to day
operational control of the activities at the project site which are
necessary to ensure compliance with the general permit).
Provide the legal name (do not use a colloquial name), contact, mailing
address, telephone number, and email address (if available) of the
construction activity operator; general permit coverage will be issued to
this operator. Indicate if the Department may transmit general permit
correspondence electronically.
Item 2: Existing General Permit Registration Number.
For reapplications only, provide the existing general permit registration
number for the construction activity. This item does not need to be
completed for new construction activities applying for general permit
coverage.
Item 3: Name and Location of the Construction Activity
Information.
Provide the official name, street address (if available), city or county (if
not located within a City) of the construction activity. Also, provide the
latitude and longitude in decimal degrees of the approximate center of
the construction activity (e.g., N 37.5000, W 77.5000).
Name and Location of Off -site Support Activity Information.
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 (i) the
support activity is directly related to a construction activity that is
required to have general permit coverage; (ii) the support activity is not
a commercial operation, nor does it serve multiple unrelated
construction activities by different operators; (iii) the support activity
does not operate beyond the completion of the construction activity it
supports; (iv) the support activity is identified in the registration
statement at the time of general permit coverage; (v) appropriate
control measures are identified in a SWPPP and implemented to
address the discharges from the support activity areas; and (vi) all
applicable state, federal, and local approvals are obtained for the
support activity.
Provide the official name, street address (if available), City and County
(if not located within a City) of all off -site support activities to be
covered under this general permit. Also, provide the latitude and
longitude in decimal degrees of the approximate center of the off -site
support activities (e.g., N 37.5000, W 77.5000). Also, if an off -site
support activity is going to be covered under this general permit the
total land area of the off -site support activity and the estimated area to
be disturbed by the off -site support activity need to be included in Item
#9.
Item 4: Status of the Construction Activity.
Indicate the appropriate status (Federal, State, Public, or Private) of
the construction activity.
Item 5: Nature of the Construction Activity.
Provide a brief description of the construction activity, such as
commercial, residential, agricultural, oil and gas, etc. This list is not all
inclusive.
Item 6: Receiving Waters(s) and HUC Information.
Provide the name of the receiving water(s) and corresponding HUC for
all stormwater discharges including any stormwater discharges from
off -site support activities to be covered under this general permit.
Hydrologic Unit Code or HUC is a watershed unit established in the
most recent version of Virginia's 6`h order national watershed boundary
dataset.
07/2014 Page 1 of 2
Item 7: MS4 Information.
If stormwater is discharged through a municipal separate storm sewer
system (MS4), provide the name of the MS4 operator. The name of the
MS4 operator is generally the Town, City, County, Institute or Federal
facility where the construction activity is located.
Item 8: Construction Activity Start and Completion Date
Information.
Provide the estimated start date (month/day/year) of the construction
activity. Provide the estimated completion date (month/day/year) of
the construction activity.
Item 9: Construction Activity Area Information.
Provide the total area (to the nearest one -hundredth acre) of the
development (i.e.., the total acreage of the larger common plan of
development or sale). Include the total acreage of any off -site support
activity to be covered under this general permit.
Provide the estimated area (to the nearest one -hundredth acre) to be
disturbed by the construction activity. Include the estimated area of
land disturbance that will occur at any off -site support activity to be
covered under this general permit.
Item 10: Common Plan of Development or Sale Information.
Indicate if the area to be disturbed by the construction activity is part of
a larger common plan of development or sale. Larger common plan of
development or sale is defined as a contiguous area where separate
and distinct construction may be taking place at different times on
different schedules. Plan is broadly defined as any announcement or
documentation, including a sign, public notice or hearing, sales pitch,
advertisement, drawing, permit application, zoning request, etc., or
physical demarcation such as boundary signs, lot stakes, or surveyor
markings indicating that construction activities may occur.
Item 11: Stormwater Pollution Prevention Plan (SWPPP).
A Stormwater Pollution Prevention Plan (SWPPP) must be prepared in
accordance with the requirements of the General VPDES Permit for
Discharges of Stormwater from Construction Activities (VAR10) prior to
submitting this Registration Statement. By signing this Registration
Statement the operator is certifying that the SWPPP has been
prepared.
Item 12: Certification.
A properly authorized individual associated with the operator identified
in Item 1 of the Registration Statement is responsible for certifying and
signing the Registration Statement. Please sign the Registration
Statement in INK.
State statutes provide for severe penalties for submitting false
information on the Registration Statement. State regulations require
that the Registration Statement be signed as follows:
a. For a corporation: by a responsible corporate officer. For the
purpose of this part, a responsible corporate officer means:
(i) A president, secretary, treasurer, or vice-president of the
corporation in charge of a principal business function, or any other
person who performs similar policy -making or decision -making
functions for the corporation, or
(ii) the manager of one or more manufacturing, production, or
operating facilities, provided the manager is authorized to make
management decisions that govern the operation of the regulated
facility including having the explicit or implicit duty of making major
capital investment recommendations, and initiating and directing
other comprehensive measures to assure long-term compliance
with environmental laws and regulations; the manager can ensure
that the necessary systems are established or actions taken to
gather complete and accurate information for 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.
c. For a municipality, state, federal, or other public agency: by either
a principal executive officer or ranking elected official. For purposes
of this part, 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.
07/2014 Page 2 of 2
Section 2. Notice of general permit coverage
(This notice is to be posted near the main entrance according to 9VAC25-880-70, Part II, section C.)
(Provide a copy of the DEQ coverage letter when obtained)
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 3. Nature of activity
(Provide a detailed narrative of the construction activities. Include or reference a construction schedule and
sequence. Include any phasing.)
This Project involves the construction of several building additions and two parking lots and associated site
work. Limits of Clearing and Grading are 2.5 Acres. The project is anticipated to begin construction in
May 2019 and be completed prior to May 2024.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 4. Erosion and Sediment Control Plan.
(Provide a reduced, l lx17 copy of the latest Erosion and Sediment Control Plan. Do not reference only.)
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
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EROSION & SEDIMENT CONTROL PLAN NOTES EROSION CONTROL LEGEND
THIS SHEET DEPICTS PHASE 1 OF A 2 PHASE EROSION AND SEDIMENT VESCH #
CONTROL PLAN FOR THE SITE. THIS PHASE /S INTENDED FOR INSTALLATION OF LIMITS OF CLEARING AND GRADING PERIMETER CONTROLS. CONTROLS. REFER TO THE EROSION AND SEDIMENT CONTROL
NARRATIVE AND DETAILS (SHEETS C6.2 - C6.4) FOR ADDITIONAL INFORMATION.
1. ALL AREAS AND CURVE NUMBERS LISTED ON THIS SHEET HAVE BEEN DRAINAGE DIVIDE -
ROUNDED FOR SIMPLIFICATION.
2. ALL CONSTRUCTION TRAFFICE ACCESS IS TO BE LIMITED TO CE CONSTRUCTION ENTRANCE 3.02
CONSTRUCTION ENTRANCES.
3. PERIMETER CONTROLS ARE TO BE INSTALLED AS FIRST MEASURES OF E&S SFX SILT FENCE 3.05
PLAN.
SSFXX XX SUPER SILT FENCE 3.05
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DESIGNED BY
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EROSION & SEDIMENT CONTROL NOTES
I I
EROSION CONTROL LEGEND
/I I
1 / I
THIS SHEET DEPICTS PHASE 2 OF A 2 PHASE EROSION AND SEDIMENT VESCH #
CONTROL PLAN FOR THE SITE. THIS PHASE IS INTENDED FOR
INSTALLATION OF PERIMETER CONTROLS. REFER TO THE EROSION LIMITS OF CLEARING AND GRADING -
AND SEDIMENT CONTROL NARRATIVE AND DETAILS (SHEETS C6.2 -
C6.4) FOR ADDITIONAL INFORMATION.
DRAINAGE DIVIDE -
1. ALL CONSTRUCTION TRAFFIC ACCESS IS TO BE LIMITED TO
CONSTRUCTION ENTRANCES.
SF
SILT FENCE 3.05
2. DRAINAGE DIVIDES SHOWN ARE USED FOR HYDRAULIC
ANALYSIS AND DO NOT REPRESENT AREAS OF
DISTURBANCE.
SSF
SUPER SILT FENCE 3.05
SOILS INFORMATION:
IP ®
INLET PROTECTION & 3.07
SOIL MAP INFORMATION IS BASED ON DATA PROVIDED BY WEB SOIL
EXCAVATED DROP INLET
SURVEY (SEE SHEET C6.2 FOR ADDITIONAL INFORMATION)
DRAINAGE AREA LABEL:
A B
A - AREA SIZE (AC.)
C
B -CN
C - D.A. IDENTIFICATION
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04109118
DRAWN BY
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DESIGNED BY
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CHECKED BY
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MINIMUM STANDARDS:
AN EROSION AND SEDIMENT CONTROL PROGRAM ADOPTED BY A DISTRICT OR
LOCALITY MUST BE CONSISTENT WITH THE FOLLOWING CRITERIA,
TECHNIQUES AND METHODS:
MS-1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED
TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS
REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL
STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED
AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN
DORMANT FOR LONGER THAN 14 DAYS. PERMANENT STABILIZATION
SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR
MORE THAN ONE YEAR.
MS-2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES AND
BORROW AREAS SHALL BE STABILIZED OR PROTECTED WITH
SEDIMENT TRAPPING MEASURES. THE APPLICANT IS RESPONSIBLE
FOR THE TEMPORARY PROTECTION AND PERMANENT STABILIZATION
OF ALL SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS AND
SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE.
MS-3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON
DENUDED AREAS NOT OTHERWISE PERMANENTLY STABILIZED.
PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED
UNTIL A GROUND COVER IS ACHIEVED THAT IS UNIFORM, MATURE
ENOUGH TO SURVIVE AND WILL INHIBIT EROSION.
MS-4. SEDIMENT BASINS AND TRAPS, PERIMETER DIKES, SEDIMENT
BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT
SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY LAND -DISTURBING
ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND
DISTURBANCE TAKES PLACE.
MS-5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN
STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY
AFTER INSTALLATION.
MS-6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND
CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE
SERVED BY THE TRAP OR BASIN.
A. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE
134 CUBIC YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP
SHALL ONLY CONTROL DRAINAGE AREAS LESS THAN THREE ACRES.
B. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED
OF FLOW FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO
THREE ACRES SHALL BE CONTROLLED BY A SEDIMENT BASIN. THE
MINIMUM STORAGE CAPACITY OF A SEDIMENT BASIN SHALL BE 134
CUBIC YARDS PER ACRE OF DRAINAGE AREA. THE OUTFALL SYSTEM
SHALL, AT A MINIMUM, MAINTAIN THE STRUCTURAL INTEGRITY OF
THE BASIN DURING A 25-YEAR STORM OF 24-HOUR DURATION.
RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL
CORRESPOND TO A BARE EARTH CONDITION OR THOSE CONDITIONS
EXPECTED TO EXIST WHILE THE SEDIMENT BASIN IS UTILIZED.
MS-7. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A
MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE FOUND TO
BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT
STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE
STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED.
MS-8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL
SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR
PERMANENT CHANNEL, FLUME OR SLOPE DRAIN STRUCTURE.
MS-9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE
OR OTHER PROTECTION SHALL BE PROVIDED.
MS-10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING
CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT -LADEN
WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST
BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT.
MS-11. BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS
OR PIPES ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION
AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING
SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND
RECEIVING CHANNEL.
MS-12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS
SHALL BE TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT
TRANSPORT AND STABILIZE THE WORK AREA TO THE GREATEST
EXTENT POSSIBLE DURING CONSTRUCTION. NONERODIBLE MATERIAL
SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND
COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES
IF ARMORED BY NONERODIBLE COVER MATERIALS.
MS-13. WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION
VEHICLES MORE THAN TWICE IN ANY SIX-MONTH PERIOD, A
TEMPORARY VEHICULAR STREAM CROSSING CONSTRUCTED OF
NONERODIBLE MATERIAL SHALL BE PROVIDED.
MS-14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS
PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES
SHALL BE MET.
MS-15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED
IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED.
MS-16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE
WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER
APPLICABLE CRITERIA:
A. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT
ONE TIME.
B. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF
TRENCHES.
C. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED
OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE,
OR BOTH, AND DISCHARGED IN A MANNER THAT DOES NOT
ADVERSELY AFFECT FLOWING STREAMS OR OFF -SITE PROPERTY.
D. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY
COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE
STABILIZATION.
E. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH
THESE REGULATIONS.
F. APPLICABLE SAFETY REGULATIONS SHALL BE COMPLIED WITH.
MS-17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED
OR PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE
TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED
SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OR
PUBLIC ROAD SURFACE, THE ROAD SURFACE SHALL BE CLEANED
THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE
REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND
TRANSPORTED TO A SEDIMENT CONTROL DISPOSAL AREA. STREET
WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN
THIS MANNER. THIS PROVISION SHALL APPLY TO INDIVIDUAL
DEVELOPMENT LOTS AS WELL AS TO LARGER LAND -DISTURBING
ACTIVITIES.
MS-18. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL
BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR
AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS
OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM AUTHORITY.
TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING
FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE
PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND
SEDIMENTATION.
MS-19. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT
SITES SHALL BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION
AND DAMAGE DUE TO INCREASES IN VOLUME, VELOCITY AND PEAK
FLOW RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY
STORM OF 24-HOUR DURATION IN ACCORDANCE WITH THE
STANDARDS AND CRITERIA LISTED IN THE VIRGINIA EROSION AND
SEDIMENT CONTROL HANDBOOK, CHAPTER 8 PAGES 20-24.
PERMANENT & TEMPORARY SEEDING AND STABILIZATION: GENERAL CONSTRUCTION NOTES FOR EROSION AND
THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED
AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS;
EMPLOYED TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING
DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A
PERIOD OF MORE THAN 14 DAYS, TO REDUCE DAMAGE FROM SEDIMENT AND
RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE
PROTECTION TO BARE SOILS EXPOSED DURING CONSTRUCTION UNTIL
PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE
ESTABLISHED.
WHERE EXPOSED SOIL SURFACES ARE NOT TO BE FINE -GRADED FOR
PERIODS LONGER THAN 30 DAYS. SUCH AREAS INCLUDE DENUDED AREAS,
SOIL STOCKPILES, DIKES, DAMS, SIDES OF SEDIMENT BASINS, TEMPORARY
ROADBANKS, ETC.
(SEE MS #1 AND MS #2 ON THIS SHEET). A PERMANENT VEGETATIVE COVER
SHALL BE APPLIED TO AREAS THAT WILL BE LEFT DORMANT FOR A PERIOD
OF MORE THAN 1 YEAR.
1. SELECTION OF PLANT MATERIAL IS BASED ON SPECIFIC SITE AND
PLANTING SEASON. A SITE SPECIFIC MIX DETERMINED USING
TABLES 3.31B OF THE VESCH, SEE TABLE ON THIS SHEET.
2. ALL PERMANENT SEEDING SHALL BE PLACED PER THE VESCH 3.32, SEE
TABLE ON THIS SHEET.
3. ALL TEMPORARY SEEDING, FERTILIZER, AND MULCH SHALL BE PLACED
PER THE VESCH 3.31.
DUST CONTROL
PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL
SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH
MAY PRESENT HEALTH HAZARD, TRAFFIC SAFETY PROBLEMS OR HARM
ANIMAL OR PLANT LIFE BY USING ONE OR A COMBINATION OF THE
FOLLOWING METHODS IN ACCORDANCE TO SECTION 3.39 OF THE VESCH:
VEGETATIVE COVER, MULCH, TILLAGE, IRRIGATION, SPRAY -ON ADHESIVES,
STONE, BARRIERS, CALCIUM CHLORIDE, AND PERMANENT VEGETATION.
STOCKPILE
THE GRADING/EXCAVATION CONTRACTOR FOR THE SUBJECT SITE IS
REQUIRED TO NOTIFY IN WRITING, THE ASSIGNED SITE INSPECTOR
REGARDING ANY EXCESS MATERIAL PROPOSED TO BE HAULED OFFSITE
PRIOR TO HAULING. THE NOTIFICATION MUST INDICATE THE QUANTITY OF
MATERIAL TO BE MOVED OFFSITE, THE IDENTIFICATION OF THE RECEIVING
SITE WHERE THE EXCESS WILL BE TAKEN, AND ALL INFORMATION
NECESSARY TO SHOW THAT SUCH RECEIVING SITE HAS BEEN PROPERLY
PERMITTED AND EROSION AND SEDIMENT CONTROLS INSTALLED.
38° 5' 36' N
39' 5' 2ff" N
SEDIMENT CONTROL
1.
THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR
18
TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE
COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR
TO THE FINAL INSPECTION.
2.
ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE
CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS
AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT
CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00
EROSION AND SEDIMENT CONTROL REGULATIONS.
3.
ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED
19
PRIOR TO OR AS THE FIRST STEP IN CLEARING.
4.
A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN
SHALL BE MAINTAINED ON THE SITE AT ALL TIMES.
5.
PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER
THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO,
OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT
A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW
AND APPROVAL BY THE PLAN APPROVING AUTHORITY.
20
6.
THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY
ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT
EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING
AUTHORITY.
21
7.
ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL
MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND
DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED.
22
8.
DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN
APPROVED FILTERING DEVICE.
9.
THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES
PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING EVENT. ANY
NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF
THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY.
10.
ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED
BORROW AREA.
11.
ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA.
EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS,
WOOD, RUBBISH, AND OTHER DEBRIS.
12.
BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF
COMPLETION PER ZONING ORDINANCE SECTION 5.1.28.
13.
ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH
SECTION 13-301 OF THE CODE OF ALBEMARLE.
14.
BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER
EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:OOAM TO 9:0013M.
15.
BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE
MANNER THAT MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE
ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND
STRUCTURES/IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET
BECAUSE OF SLIDES, SINKING, OR COLLAPSE.
16.
THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN,
REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT
FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES
REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT,
BUILDING OR OTHER PORTION OF THE PROPERTY.
17.
TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND
MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE, AND IN THE MONTHS OF
SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL
RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO
Custom Soil Resource Report
Soil Map
CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF
EROSION AND SEDIMENT CONTROL NARRATIVE
GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF.
ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE COUNTY EROSION
PROJECT DESCRIPTION
CONTROL INSPECTOR.
THIS PROJECT INVOLVES THE CONSTRUCTION OF SEVERAL BUILDING
PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT
ADDITIONS AND TWO PARKING LOTS AND ASSOCIATED SITE WORK. LIMITS OF
SEEDING AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE
CLEARING AND GRADING ARE 2.50 ACRES.
APPLIED AT 90LBS/1000SF, INCORPORATED INTO THE TOP 4-6 INCHES OF
SOIL. FERTILIZER SHALL BE APPLIED AT 1000LBS ACRE AND CONSIST OF
/
SCHEDULE: THE PROJECT IS ANTICIPATED TO BEGIN CONSTRUCTION IN LATE
A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT
2018 AND BE COMPLETED PRIOR TO Q4 OF 2019.
180LBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND
0-5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS
ADJACENT PROPERTY
TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO
THE PROPERTY IS BOUNDED BY BUISNESS TO THE SOUTH, RESIDENTIAL AREAS
APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR.
TO THE WEST,BERKMAR DR TO THE EAST, AND AN INDUSTRIAL AREA TO THE
MAINTENANCE: ALL MEASURES SHALL BE INSPECTED WEEKLY AND AFTER
NORTH.
EACH RAINFALL EVENT. ANY DAMAGE OR CLOGGING TO STRUCTURAL
MEASURES SHALL BE REPAIRED IMMEDIATELY. SILT TRAPS SHALL BE
EXISTING SITE CONDITIONS
CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH
THE SITE IS CURRENTLY THE CHARLOTTESVILLE ALBEMARLE SPCA
SEDIMENT. ALL SEEDED AREAS SHALL BE RESEEDED WHEN NECESSARY
TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION
OFF -SITE AREAS
DYKES WHICH COLLECT SEDIMENT TO HALF THEIR HEIGHT MUST BE
NO OFF -SITE AREAS WILL BE DISTURBED AS A PART OF THIS PROJECT.
CLEANED AND REPAIRED IMMEDIATELY.
ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE
CRITICAL EROSION AREAS
REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN
EX BIORETENTION FILTER/EX DETENTION PIPES: THERE IS AN EXISTING BIORETENTION
MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE
FILTER AND UNDERGROUND DETENTION SYSTEM IN OR NEAR THE LIMITS OF WORK.
COUNTY EROSION CONTROL INSPECTOR.
CARE SHOULD BE TAKEN TO AVOID SEDIMENT FROM ENTERING EITHER FACILITY.
THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT
WTIHIN 1 YEAR OF THE DATE OF APPROVAL. (WATER PROTECTION
EX INTERMITTENT STREAM: LOCATED ON THE WESTERN END OF THE PROPERTY,
ORDINANCE SECTION 17-204G.)
OUTSIDE THE LIMITS OF DISTURBANCE. CARE SHOULD BE TAKEN TO AVOID SEDIMENT
PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENUDED AREAS
ENTERING THE STREAM. ADDITIONALLY NO WORK IS PROPOSED OR ALLOW NEAR THE
WITHIN NINE (9) MONTHS AFTER THE DATE THE LAND DISTURBING
STREAM WITH THIS PLAN.
ACTIVITY COMMENCED. (WATER PROTECTION ORDINANCE SECTION
17-207B)
EROSION AND SEDIMENT CONTROL MEASURES
itz'.m s1'. 12`:i?k704:i17
Map Scale. 1.2,,490 fi prtted on A land (11- x 8.7) sheet,
MeWrs 4
N 0 11 70 140 210
Fit
0 IX 2007 400 600
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9
UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION
AND SEDIMENT CONTROL PRACTICES SHALL BE CONSTRUCTED AND
MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF
THE CURRENT ADDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL
HANDBOOK. THE MINIMUM STANDARDS OF THE VESCH SHALL BE ADHERED TO
UNLESS OTHERWISE WAIVED OR APPROVED BY A VARIANCE BY LOCAL
AUTHORITIES HAVING JURISDICTION.
STORMWATER RUNOFF CONSIDERATIONS
STORMWATER QUALITY REQUIREMENTS ARE BEING SATISFIED THROUGH THE
USE OF NUTRIENT CREDITS AND STORMCEPTORS.
EROSION AND SEDIMENT CONTROL MEASURES MAINTENANCE
ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE MAINTAINED IN
ACCORDANCE WITH VESCH AND THE CONSTRUCTION SEQUENCE, INCLUDING
THE INSPECTION OF ALL MEASURES AFTER ALL RAIN EVENTS.
SEQUENCE OF INSTALLATION
PHASE I (SEE SHEET C6.0)
1. A PRE -CONSTRUCTION MEETING IS REQUIRED WITH THE COUNTY OF
ALBEMARLE, CONTRACTOR, OWNER, AND ENGINEER. THIS MEETING SHALL
TAKE PLACE AT ALBEMARLE COUNTY COMMUNITY DEVELOPMENT.
2. INSTALL ALL EROSION AND SEDIMENT CONTROL MEASURES SHOWN ON
THE PHASE I PLAN, PERIMETER CONTROLS AND THE CONSTRUCTION
ENTRANCE. ONCE PERIMETER CONTROLS ARE INSTALLED. INSTALL STORM
SEWER SYSTEM, AND EXCAVATED DROP INLET SEDIMENT TRAPS AS
SHOWN ON THE PHASE I PLANS.
3. AFTER ALL EROSION AND SEDIMENT CONTROL PHASE I MEASURES ARE IN
PLACE AND APPROVED BY THE E&S INSPECTOR, SITE WORK CAN BEGIN.
4. ROUGH GRADE PROJECT AREA.
5. SEED ALL DENUDED AREAS PER VESCH STANDARDS.
PHASE II (SEE SHEET C6.1)
1.
INSTALL ADDITIONAL INLET PROTECTION WHERE SHOWN ON THE PHASE II
EROSION AND SEDIMENT CONTROL PLAN AS THE STORM SYSTEM IS
CONSTRUCTED AND BECOMES OPERATIONAL.
2.
FINE GRADE PROJECT AREA. APPLY PERMANENT SOIL STABILIZATION TO
THESE AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS ACHIEVED.
REFER TO MS-1 FOR TEMPORARY STABILIZATION REQUIREMENTS.
3.
ALL STORMWATER PIPING & STRUCTURES SHALL BE INSPECTED FOR
38' 5 38'N
SILT/SEDIMENT. IF PRESENT, SILT/SEDIMENT SHALL BE CLEANED OUT FOR
THE SYSTEM TO THE SATISFACTION OF THE E&S INSPECTOR.
4.
APPLY PERMANENT SOIL STABILIZATION TO THESE AREAS WITHIN SEVEN
DAYS AFTER FINAL GRADE IS ACHIEVED. SILT FENCE, CULVERT INLET
PROTECTION AND INLET PROTECTION MUST BE MAINTAINED THROUGH
GRADING AND CONSTRUCTION.
5.
ONCE CONSTRUCTION IS COMPLETE AND ALL CONTRIBUTING AREAS ARE
STABILIZED, EROSION CONTROL MEASURES CAN BE REMOVED UPON
APPROVAL FROM THE E&S INSPECTOR.
STRUCTURAL PRACTICES:
1.
TEMPORARY CONSTRUCTION ENTRANCE WITH PAVED WASH RACK - 3.02 A
TEMPORARY CONSTRUCTION ENTRANCE AND PAVED WASH RACK SHALL BE
PROVIDED AT THE LOCATION INDICATED ON THE PLANS. IT IS IMPERATIVE
THAT THIS MEASURE BE MAINTAINED THROUGHOUT CONSTRUCTION. ITS
17,
PURPOSE IS TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO
PAVED ROADS BY MOTOR VEHICLES OR RUNOFF.
2.
SILT FENCE BARRIER - 3.05 SILT FENCE SEDIMENT BARRIERS SHALL BE
INSTALLED DOWNSLOPE OF AREAS WITH MINIMAL GRADES TO FILTER
SEDIMENT -LADEN RUNOFF FROM SHEET FLOW AS INDICATED. ITS
PURPOSE IS TO INTERCEPT SMALL AMOUNTS OF SEDIMENT FROM
DISTURBED AREAS AND PREVENT SEDIMENT FROM LEAVING THE SITE.
3.
STORM DRAIN INLET PROTECTION - 3.07 STONE FILTERS SHALL BE PLACED
AT THE INLET OF ALL DRAINAGE STRUCTURES AS INDICATED ON PLANS.
ITS PURPOSE IS TO PREVENT SEDIMENT FROM ENTERING THE STORM
DRAINS.
4.
DIVERSION DIKE - 3.09 A TEMPORARY RIDGE OF COMPACTED SOIL TO
DIVERT WATER FROM A CERTAIN AREA.
5.
DUST CONTROL - 3.39 DUST CONTROL IS TO BE USED THROUGH THE SITE IN
AREAS SUBJECT TO SURFACE AND AIR MOVEMENT.
VEGETATIVE PRACTICES:
1.
TOPSOIL (TEMPORARY STOCKPILE) - 3.30 TOPSOIL SHALL BE STRIPPED
FROM AREAS TO BE GRADED AND STOCKPILED FOR LATER SPREADING.
STOCKPILE LOCATIONS SHALL BE LOCATED ONSITE AND SHALL BE
STABILIZED WITH TEMPORARY SILT FENCE AND VEGETATION.
2.
TEMPORARY SEEDING - 3.31 ALL DENUDED AREAS WHICH WILL BE LEFT
DORMANT FOR MORE THAN 30 DAYS SHALL BE SEEDED WITH FAST
GERMINATING TEMPORARY VEGETATION IMMEDIATELY FOLLOWING
GRADING OF THOSE AREAS. SELECTION OF THE SEED MIXTURE SHALL
DEPEND ON THE TIME OF YEAR IT IS APPLIED.
38' 5M'N 3.
PERMANENT SEEDING - 3.32 FOLLOWING GRADING ACTIVITIES, ESTABLISH
PERENNIAL VEGETATIVE COVER BY PLANTING SEED OR SOD TO REDUCE
EROSION, STABILIZE DISTURBED AREAS, AND ENHANCE NATURAL BEAUTY.
4.
SOIL STABILIZATION BLANKETS & MATTING - 3.36 A PROTECTIVE COVERING
BLANKET OR SOIL STABILIZATION MAT SHALL BE INSTALLED ON PREPARED
PLANTING AREAS OF CHANNELS TO PROTECT AND PROMOTE VEGETATION
ESTABLISHMENT AND REINFORCE ESTABLISHED TURF.
MANAGEMENT STRATEGIES
1.
ESTABLISH PERIMTER CONTROLS AND CONSTRUCTION ENTRANCE.
2.
PROVIDE SEDIMENT TRAPPING MEASURES AS A FIRST STEP IN GRADING,
SEED AND MULCH IMMEDIATELY FOLLOWING INSTALLATION.
3.
PROVIDE TEMPORARY SEEDING OR OTHER STABILIZATION IMMEDIATELY
AFTER GRADING.
4.
ISOLATE TRENCHING FOR UTILITIES AND DRAINAGE FROM DOWNSTREAM
CONVEYANCES IN ORDER TO MINIMIZE PERIMETER CONTROLS.
5.
ALL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE MAINTAINED
UNTIL THEY ARE NO LONGER REQUIRED TO COMPLY WITH THE CONTRACT
DOCUMENTS OR STATE LAW.
PERMANENT STABILIZATION
ALL NON -PAVED AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED
WITH PERMANENT SEEDING OR SOD IMMEDIATELY FOLLOWING FINISHED
GRADING. SEEDING SHALL BE IN ACCORDANCE WITH STD. & SPEC. 3.32,
PERMANENT SEEDING. SEED TYPE SHALL BE AS SPECIFIED FOR "MINIMUM
CARE LAWNS" AND "GENERAL SLOPES" IN THE HANDBOOK FOR SLOPES LESS
THAN 3:1. FOR SLOPES GREATER THAN 3:1, SEED TYPE SHALL BE AS SPECIFIED
FOR "LOW MAINTENANCE SLOPES" IN TABLE 3.32-D OF THE HANDBOOK. FOR
MULCH (STRAW OR FIBER) SHALL BE USED ON ALL SEEDED SURFACES. IN ALL
SEEDING OPERATIONS SEED, FERTILIZER AND LIME SHALL BE APPLIED PRIOR
TO MULCHING.
SAFE WORK ENVIRONMENT
TH 0�
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CONTRACTOR SHALL PROVIDE A SAFE WORK ENVIRONMENT AT ALL TIMES. THE
o 0
LIMITS OF WORK ARE LOCATED WITHIN AN ACTIVE ANIMAL SHELTER. CARE
N N
SHOULD BE GIVEN TO MONITORING SAFE PERIMETER CONDITIONS AND LIMITING
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ACCESS INTO WORK AREAS. MAINTENANCE OF TRAFFIC, INCLUDING
> E
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CONSTRUCTION TRAFFIC, SHALL BE COORDINATED WITH THE OWNER TO
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PREVENT CONFLICTS WITH PASSENGER VEHICLES, PUBLIC TRANSPORTATION,
u 3
PEDESTRIAN TRAFFIC, AND BICYCLE TRAFFIC.
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JOB NO.
40204
SHEET NO.
C6.2
L
IL FENCE p ;
ENDWALL
L— TOE OF FILL
0 0
0 0
SILT FENCE o 11 0
* DISTANCE IS 6' MINIMUM IF FLOW
IS TOWARD EMBANKMENT
FLOW
OPTIONAL STONE COMBINATION
1.0' 1.5' Do-
FLOW
VDOT #3, #357, #5, #56 OR #57 (UUAKJL AUUNLUAIL
TO REPLACE SILT FENCE IN " HORSESHOE " WHEN
HIGH VELOCITY OF FLOW IS EXPECTED
2.5'
CLASS I RIPRAP
1.5
SIL T FENCE DROP INLET
Ply 0 TE C TION
2 X 4' WOOD FRAME
STAKE
DROP INLET
� irTi i rnnTr
PERSPECTIVE VIEWS
ELEVATION OF STAKE AND
FABRIC ORIENTATION
SPECIFIC APPLICATION
DETAIL A
THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE
INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER
THAN 5%) WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT
EXCEEDING 1 C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT
APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS
IN STREET OR HIGHWAY MEDIANS.
SOURCE: N.C. Erosion and Sediment Control Planning and Design Manual, 1988
DIVERSIONS
10% SETTLEMENT
A o' u� Uu nn Anr W
TYPICAL PARABOLIC DIVERSION
10% SETTLEMENT
0.3' FREE BOARD --
TYPICAL TRAPEZOIDAL DIVERSION
10% SETTLEMENT
0.3' FREE BOARD
TYPICAL VEESHAPED DIVERSION
PLATE 3.07-1
TH 0�
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SOURCE: ADAPTED from VDOT Standard Sheets and Va. DSWC
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PLATE. 3.08-1
Source: Va. DSWC
Plate 3.12-1
40204
SHEET NO
C6.3
NOTES:
1. THE EROSION AND SEDIMENT CONTROL DETAILS SHOWN WITHIN THIS PLAN SET ARE INTENDED TO PROVIDE A
REFERENCE TO THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK (VESCH). THE GRAPHIC DETAILS
PROVIDED HAVE BEEN EXTRACTED FROM THE VESCH. CONTRACTOR SHOULD VERIFY FAMILIARITY WITH THE
VESCH AND THE TEXT ASSOCIATED WITH THE REFERENCED DETAILS.
2. REFER TO EROSION AND SEDIMENT CONTROL NARRATIVE FOR ADDITIONAL INFORMATION.
3. INLET PROTECTION IS TO BE PROVIDED IN ORDER TO ENSURE THAT FLOW WILL ENTER THE INLET DURING
ROAD/PARKING PAVING AND WHEN GUTTER PAN ELEVATION IS HIGHER THAN THE TEMPORARY ROAD/PARKING
SURFACE.
EXISTING GROUND
70' MIN.
0
FILTER CLOTH 6" MIN. I q I
12' MIN:*
70' MIN.
B WASHRACK
I F- (❑PTI❑NAL)
/-- VD❑T #1 I P❑SITIVE DRAINAGE
COURSE AGGREGATE B TO SEDIMENT
TRAPPING DEVICE
* MUST EXTEND FULL WIDTH
OF INGRESS AND EGRESS PLAN LAN VIEW
��►17 �1►i�l��i�l q\PJ►1�� i
SECTION A -A
SECTION B-B
EXISTING
PAVEMENT
3'
W5:
MOUNTABLE BERM
(❑PTI❑NAL)
1N,
EXISTING
PAVEMENT
10MIN,
llKH1N JF'HLt
SOURCE: ADAPTED from 1983 Maryland Standards for Soil erosion and Sediment Control, and Va. DSWC Plate 3.02-1
RL 0 CK & GRA VEL C URR INLE T
SEDIMENT FIL TER
CURB INLET
WIRE SCREEN
GRAVEL FILTER
CONCRETE BLOCK
RUNOFF OVERFLOW
WATER WITH FILTERED WATER
SEDIMENT
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SEDIMENT IIII
WIRE SCREEN
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2" X 4" WOOD STUD CURB INLET
SPECIAL APPLICATION
THIS METHOD OF INLET PROTECTION IS APPLICABLE AT
CURB INLETS WHERE AN OVERFLOW CAPABILITY IS NECESSARY
TO PREVENT EXCESSIVE PONDING IN FRONT OF THE STRUCTURE.
* GRAVEL SHALL BE VDOT #3, #357 OR #5 COARSE AGGREGATE
CONSTRUCTION OF A SILT FENCE
(WITHOUT WIRE SUPPORT)
1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH
UPSLOPE ALONG THE LINE OF
STAKES.
6' MAX.
FLOW
3. STAPLE FILTER MATERIAL
TO STAKES AND EXTEND
IT INTO THE TRENCH.
4. BACKFILL AND COMPACT
THE EXCAVATED SOIL.
eW��—
FLO
POINTS A SHOULD BE HIGHER THAN POINT B.
DRAINAGEWAY INSTALLATION
(FRONT ELEVATION)
SOURCE: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control,VA. DSWC PLATE. 3.05-2
Sherwood and Wyant
CONSTRUCTION OF A SILT FENCE
(WITH WIRE SUPPORT)
1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS.
TRENCH UPSLOPE ALONG THE LINE
OF POSTS.
_J / _ IIII / pl�
FLOW
3. ATTACH THE FILTER FABRIC TO THE WIRE
FENCE AND EXTEND IT INTO THE TRENCH.
4. BACKFILL AND COMPACT THE
EXCAVATED SOIL.
c-
FLOW
�r-IIII'
III ��I
EXTENSION OF FABRIC AND WIRE INTO THE TRENCH.
FILTER FABRIC (1
SOURCE: VA. DSWC PLATE 3.07-8 SOURCE: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control,
Sherwood & Wyant
PLATE. 3.05-1
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C6.4
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Section 5. Stormwater Management Plan
(Provide a reduced l 1x17 copy of the latest stormwater management plan. Do not reference only.)
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
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THE ALBEMARLE SOCIETY FOR THE
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N6 0 s ♦ I I //// INOUT=506.25' 18"RCP J. WILSON
RISER (2.5 x 2.5' GRATE) I Go I I U I sy2 \ / / ��� DESIGNED BY
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■1���I1�
M1■
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ZI■
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• - - -
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me
FINE!
mim
��l�ii�■
1 ■I�i�����1�
mi
10+00 10+50 11+00 11+50 12+00
540
535
530
525 540
520 535
515 530
510 525
505 520
500 515
12+50 9+50
NOTES:
1. THESE SHEETS ARE PROVIDED FOR UTILITY PROFILE
INFORMATION ONLY.
2. ALL PIPES IDENTIFIED AS'RCP' SHALL BE CLASS III RCP AND
u
CONFORM WITH VDOT SPECIFICATIONS.
3. REFER TO SHEET C4.1 FOR NOTES AND DETAILS.0.
4. INLETS ARE DESIGNED AND IDENTIFIED AS PRECAST TOP
/1
U )
UNITS (T-DI-3) WITH PRECAST BASE UNIT (SIZED PER VDOT
DETAIL) WITH INLET SHAPING.
5. CONTRACTOR TO VERIFY INLET/MANHOLE BASE SIZE WITH
w
MANUFACTURER TO ENSURE THE BASE CAN
ACCOMMODATE THE PIPE CONNECTIONS.
6. IF INLETS ARE INSTALLED PRIOR TO TOP LAYER OF
PAVEMENT THE CONTRACTOR SHALL ENSURE RUNOFF CAN
W
BE CONVEYED INTO THE INLET WITHOUT PONDING AT THE
GUTTER
7. STORM SEWER TO BE PRIVATELY OWNED/MAINTAINED
J
�--�
ui
STANDARD PROFILE LEGEND:
Q
ISE
MEN
mmm
1120
N
�,,,i
&al1
III■
-=�
=111=II
M."IT
•
■■
m■■
mm
10+00 10+50 11+00 11+50 12+00
0
12+50 0 50
PROFILE SCALE
540
535
530
525
520
pp > 0
J
TOP 1A STRUCTUREID z
Z)�
ELEVATION o HEIGHT (TOP - INV OUT) u
Ln
w
Ww
o= �
X. GRADE J < Q
\ H� m 3:
PROR GRADE J
> a �
C� oC
DOWNSTREAM STRUCTURE w O
Qm PSTREAM STRUCTURE
INLET LENGTH p oo_� PIPE SIZE
w r O STRUCTURE TYPE N,co CD()O�
co CD �c
o pz
m U) Q
U
JOB NO.
40204
515 SHEET NO.
C4.2
N
0
cu
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0
Q
Q
m
0
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'�
2016 ROAD & BRIDGE STANDARDS
SL 1
#5 BARS 0 8" C•C TYP.
#5 BARS
Q 8" C-C TYP,
A A B I I B
30" DIAMETER 30" DIAMETER i
IIIII II
I I I I I I IT
I I I I I T T I —I SIZE AND
PLAN WALLCTURE THICKNESS VARIES PLAN
CLASS A3 CONCRETE CLASS A3 CONCRETE
SECTION A -A
NOTES: SECTION B-B
1. THE STANDARD SAFETY SLAB (SL-1) IS TO BE USED ONLY WHEN SPECIFIED IN THE PLANS
ON THE DRAINAGE SUMMARY SHEET AND/OR THE DRAINAGE DESCRIPTION.FOR MANHOLES.
JUNCTION BOXES, AND DROP INLETS WITH HEIGHTS GREATER THAN 12 FEET, THE SPACING OF
ADJACENT SAFETY SLABS SHALL BE 8' TO 12'WITH NO SAFETY SLAB LOCATED WITHIN 6 FEET
OF THE TOP OR BOTTOM OF THE STRUCTURE. SAFETY SLABS SHALL NOT BE LOCATED BELOW
ANY INLET PIPE OF 30" DIAMETER OR GREATER.
2. THE COST OF THE SL-I IS INCLUDED IN THE COST OF THE STRUCTURE, SEE CAST IN PLACE DRAWINGS
FOR FURTHER DETAILS
3. ACCESS OPENINGS ARE TO BE STAGGERED FROM ONE SIDE OF STRUCTURE TO THE
OTHER WHERE APPLICABLE. STEPS ARE TO BE STAGGERED ACCORDINGLY. # 5 BARS 0 8" C-C I I
c
4. SAFETY SLAB MAY BE CASTAN-PLACE OR PRECAST. CAST -IN -PLACE CONCRETE TO BE xF
CLASS A3 (3000 PSI). PRECAST CONCRETE IS TO BE A4 (4000 PSI). REINFORCING
STEEL TO BE IN ACCORDANCE WITH AASHTO M31. �� �' • 7
S. ACCESS OPENINGS MAY BE 30" DIAMETER OR 30" SQUARE. WHEN STRUCTURE WIDTH IS
LESS THAN 30" THE ACCESS OPENING SHALL BE RECTANGULAR (STRUCTURE WIDTH BY
30" LONG).
TYPICAL PRECAST UNIT
\VD=TYPICAL CONCRETE SAFETY SLAB FOR DROP INLETS SPECIFICATION
REFERENCE
ROAD AND BRIDGE STANDARDS
SHEET I OF 1 REVISION DATL MANHOLES AND JUNCTION BOXES
L-f
302
10614 VIRGINIA DEPARTMENT OF TRANSPORTATION
i
i
i
c
VAlk'',
d
,d e
TRANSITION BETWEEN
PIPE DIA ETERS WHEN
DIFFERENT SIZES OF
PIPES ARE ENCOUNTERED.
NOTES:
SHAPING OF MANHOLE AND INLET INVERTS IN ACCORDANCE WITH
THIS DRAWING IS TO APPLY TO THOSE STRUCTURES SPECIFIED
ON PLANS OR WHERE INVERT OF PIPE IS ABOVE INVERT OF
STRUCTURE.
MANHOLE OR DROP INLET IS TO BE FORMED AND CONSTRUCTED
IN ACCORDANCE WITH APPLICABLE STANDARD OR SPECIAL DRAWING.
2016 ROAD & BRIDGE STANDARDS
SHAPE TO ELEVATION
OF MID -POINT OF
LARGEST PIPE.
SHTo
APE TO
OFNPIPER
I �
I I
♦ A, AA.
SLOPE TO DRAIN TO INVERT
OF OUTLET PIPE
SECTION A -A
METHOD OF TREATMENT IN DROP INLETS
SLOPE TO DRAIN
TO INVERT OF
OUTLET PIPE
THE INVERT SHAPING AS DETAILED HEREON IS TO CONSIST OF A PORTLA D CEMENT CONCRETE MIX CONFORMING TO CLASS A3 OR 61/
CLASS Cl,XCEPT THAT 25X OF COARSE AGGREGATE MAY BE ^:' : ' • ""`
UP TO 4'i IN DIAMETER AND CONSIST OF STONE, BROKEN BRK;K, v e :: ': r::.;+ ;•:
BROKEN CONCRETE OR BROKEN CONCRETE BLOCK. THE SURFACE :::• ,;,;:;.;:<.. '`::
SHALL BE LEFT SMOOTH BY MEANS OF HAND TROWELLING. NONE II I
OF THE COARSE AGGREGATE SHALL REMAIN EXPOSED. ,...d.,..
d
DETAILS OF INVERT SHAPING AS SHOWN HEREON ARE FOR EXAMPLE d
PURPOSES ONLY. EACH MANHOLE OR DROP INLET IS TO BE SHAPED —
INDIVIDUALLY TO BEST FIT THE PARTICULAR INLET AND OUTLET
CONFIGURATION AND FLOW LINES. SECTION B-B
PLAN
METHOD OF TREATMENT IN MANHOLES
xv=r SPECIFICATION
STANDARD METHOD OF SHAPING REFERENCE
ROAD AND BRIDGE STANDARDS MANHOLE &INLET INVERTS
SHEET 1 OF 1 REVISION DATE 302
106.08 VIRGINIA DEPARTMENT OF TRANSPORTATION
MH-1 l'-9Y4• DIA
THE LETTERS V.D.O.T. ARE OPTIONAL
IF USED THE LETTERS ARE TO BE
1'/z' 4 CAST IN THE DEPRESSIO IN TOP OF
COVER 1" WIDE RAISED " HIGH AS
1%2" �a'• 1%2' SHOWN.
FINISHED
SECTION A -A
B
11/
IA
A
LETTERING
OPTIONAL
APPROXIMATE WEIGHT
CAST IRON
FRAME 239 ± 12 LBS.
COVER 137 ± 7 LBS.
ME, womint
m V C+)uiiiirml
TOP
A
SECTION B-B BOTTOM
\VDCTr SPECIFICATION
STANDARD MANHOLE FRAME AND COVER REFERENCE
ROAD AND BRIDGE STANDARDS
SHEET 2 OF 5 REVISION DATE VIRGINIA DEPARTMENT OF TRANSPORTATION 224
106.02 302
'DOT' LABEL TO BE REPLACED WITH 'STORM'
T-DI-3,4 NOTES:
CURB DROP INLET THROAT SECTION 1• SEE GENRERAL NOTES - PRECAST FOR ADDITIONAL DETAILS.
2. CONCRETE TO BE 4000 PSI MINIMUM COMPRESSIVE STRENGTH.
STANDARD IC-2 FRAME AND COVER 3. REINFORCING STEEL IN ACCORDANCE WITH ASTM A-615 FOR
REINFORCING BARS.
O 4. REINFORCING IN ACCORDANCE WITH ASTM A-185 FOR WELDED
WIRE MESH.
5. DIMENSIONS SHOWN ARE MINIMUM. ACTUAL DIMENSIONS MAY
?0 VARY WITH MANUFACTURER.
X 30" 6. THIS UNIT MAY BE USED WITH ALL STANDARD DI-3 & DI-4
CURB DROP INLETS.
V�AeS FRO 7•EACH FACE BLOCK SHALL HAVE 2 OR MORE LOOPS (#3
M DOWEL HOLES
C 2 T SEE SHEET BARS) CAST IN FACE AS SHOWN. THESE LOOPS MAY
C ?0'-0'• 2 OF 2 FOR BE USED FOR LIFT, AND FOR TIEING IN THE POURED
0
ALTERNATE IN PLACE GUTTER SECTION. FACE BLOCKS ARE TO BE
5" DETAIL. SEALED WITH GROUT OR POLYSULFIDE SEALER.
CMIN. 8. STANDARD ST-1 STEPS NOT REQUIRED IN THIS TOP UNIT.
FACE BLOCK
*4 BARS
#3 BARS-N
#4 BARS
LOCATION OF HOLE TO
VARY ACCORDING TO TYPE
OF INLET CONSTRUCTED. -
SEE SHEET 2 OF 2
FOR ALTERNATE DETAIL.
SEE ALTERNATE NOSE DETAIL,
SHEET 2 OF 2
2'-10"
ALL RIB BARS #5 ON 6" CENTERS.
ITZ
#4 BARS
1 •'::
#3
#4 BARS
a
BARS
6"
#3 BARS
--
#4 BARS
N_t
SEE ALTERNATE 1" DEEP NOTCH
FOR INTERLOCK
DETAIL B
VARIES WITH MANUFACTURER
TYPICAL MINIMUM BAR
REINFORCEMENT
T -10"
2y �
2'_71 „
ALL RIB BARS W-20 SMOOTH
BARS ON 4" CENTERS.
W-20
-#
4 4 BARS
-
W 2
-20
rW-20
45° W-11
W-20 W-11
W-20 21/z„
31/2 27W-20
W 11
LOCATION OF HOLE TO W 20 W 20 V DEEP NOTCH
VARY ACCORDING TO TYPE FOR INTERLOCK
OF INLET CONSTRUCTED. W-11
TYPICAL MINIMUM WELDED WIRE REINFORCEMENT
\vDOT
ROAD AND BRIDGE STANDARDS STANDARD PRECAST T 0 P UNITS
SHEET 1 OF 2 REVISION DATE VIRGINIA DEPARTMENT OF TRANSPORTATION
103.05
RECOMMENDED MINIMUM
HEIGHT CHART
PIPE
H DIMENSION
z
SIZE
CONCRETE PIPE
ci w
6"
2'-11"
0m
lo o�Q
1o..
3,_31
12"
3,-6„
cl -
151.3'_41
n
18"
4'-OI
21"
4'-3
6"
3,-9"
8"
N-111/4"
z
10"
4 _11
D
I.i w
12"
4'-4"
15"
C -71/4"
om
Um u-0
18"
4'-101/2"
d
21„
5'-1•Y4„
M _
24"
5'-5"
o t
jo
27"
5'-81/4"
12"
4,_4"
Z) �
15"
4' 71/a"
LJ as
18"
4'-101/2"
21„
5
mw
w �m
24"
5'-5"
_ V
27"
5'-81/4"
0 am
30"
6,-2Y4„
d�-e
r� 0_
33"
6,-5y4„
0
o�
36"
6'-9"
42"
7'4/2"
48"
1 7'-1D"
Lo
SPECIFICATION
REFERENCE
105
233
302
nER
r� r
I I I
RISER (UNIT
-+� BASEUNITUNIT
,11
�I� I
FOOTING
SPECIFICATION
REFERENCE
105
302
FOR DETAILS OF ALL COMPONENT PARTS AND
"GENERAL NOTES- PRECAST" SEE SHEETS
103.01-103 . 11
SPACER UNIT
U. W
z z
J J
0
0
0
RISER UNIT
°REDUCER
MONOLITHIC
BASE
/-Z
PRECAST MANHOLE
VIRGINIA DEPARTMENT OF TRANSPORTATION
0
0
RISER UNIT
0
REDUCER UNIT
BASEI UNIT
—T _r
FOOTING
MH-2
r
w
LL
Lu
z
J
v D ROAD AND BRIDGE STANDARDS
REVISION DATE SHEET 1 OF 1
106.07
PB 1 NO PROJECTION OF PIPE ABOVE GROUND LINE
TOP OF FILL
TOP OF FILL
TOP OF FILL
GROUND LINE =
r GROUND LINE =
r GROUND LINE
_ — -
=
I-1 I I-III=1
rrrrrr rrrrr
I I =1 I I I 11-
I-1 I I -I 11= rrrrrr I I I=1 I I I II-
I-1 11= I I=1 rrrrrrr rrrrrrr 1-
N
I -III
rrrr rrrr
rrr rr
I I -I
EARTH
rrrr
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rr, d rr ROCK OR
UNYIELDING
+
p
-
o -I
p N - .
LI
o 11 SOIL
o _' BEDDING
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11
MATERIAL
1
-1-1 IJ-1 =1'
MIN. 1/10 D
X D X BEDDING
MIN. II -III -III -III
1/10 D
X D X BEDDING
MIN. 1/10 D
MATERIAL
MATERIAL
X D X
/2" PER V OF H
MIN. 8'', MAX. 24''
FOUNDATION SOFT, YIELDING, OR
NORMAL EARTH FOUNDATION
ROCK FOUNDATION
OTHERWISE UNSUITABLE MATERIAL
PIPE PROJECTION ABOVE GROUND LINE
MIN. 1.5 x D MIN. 1.5 x D
MIN. 1.5 x D MIN. 1.5 x D
MIN. 1.5 x D MIN. 1.5 x D
STOP OF FILL
TOP OF FILL
r-TOP OF FILL
_
_
-
_
- :rrrrrrr, rrrrrrr.; _
— rrrrrr, rrrrrrr•;•:::•;:. _
—
rrrrrrrrrrrrrrr rrrrrrrrrrrrrrr
—
=
=
=rrrrrrrrrr
-
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— rrrr rrrr :. ' : -' =' '
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rr rr
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= rrrrr �rrrr,:::�:::•. —
—
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rrrrrrrrrrrrrr rrrrrrrrrrrri
rrrrrrrrrrr-rrrrrrrrrrr
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p r j r LINE
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d rrrr'rrr
=GROUND
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ROCK OR
-I
i j
MIN. 1/10 D - UNYIELDING
0
=1 -_ _-
- -7-111-i-i 1II i- -
MIN. 1/10 D t� BEDDING
MIN- 1/10 D X D X BEDDING
MATERIAL
=1 I =1 L=m= I- I=
/2 PER SOIL
T OF H X D X
MIN. 8", BEDDING
EARTH
MATERIAL
MAX.24" MATERIAL
FOUNDATION SOFT, YIELDING, OR
NORMAL EARTH FOUNDATION
ROCK FOUNDATION
OTHERWISE UNSUITABLE MATERIAL
®BEDDING MATERIAL IN ACCORDANCE WITH EMBANKMENT NOTES
SECTION 302 OF THE ROAD AND BRIDGE
SPECIFICATIONS.
FOR GENERAL NOTES ON PIPE BEDDING,
CLASS I BACKFILL MATERIAL IN ACCORDANCE SEE INSTALLATION OF PIPE CULVERTS
WITH SECTION 302 OF THE ROAD AND BRIDGE AND STORM SEWERS GENERAL NOTES
SPECIFICATIONS. ON SHEET 107.00.
REGULAR BACKFILL MATERIAL IN ACCORDANCE
rrrrr FOR PLASTIC PIPE CLASS I BACKFILL MATERIAL WITH SECTION 302 OF THE ROAD AND BRIDGE CRUSHED GLASS CONFORMING TO THE
SPECIFICATIONS.
rr IN ACCORDANCE WITH SECTION 302 OF THE ROAD SIZE REQUIREMENTS FOR CRUSHER RUN
AND BRIDGE SPECIFICATIONS. AGGREGATE SIZE 25 AND 26 MAY BE
USED IN PLACE OF CLASS I BACKFILL.
FOR ALL OTHER PIPE REGULAR BACKFILL MATERIAL
'rrrr IN ACCORDANCE WITH SECTION 302 OF THE ROAD
AND BRIDGE SPECIFICATIONS.
XVDOT
INSTALL. OF PIPE CULVERTS AND STORM SEWERS
SPECIFICATION REFERENCE
ROAD AND BRIDGE STANDARDS
CIRC. PIPE BEDDING AND BACKFILL - METHOD ''A''
302
SHEET 1 OF 4FREVISION
DATE
7/12
VIRGINIA DEPARTMENT OF TRANSPORTATION
303
107.01
TH
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SHEET NO. 0- o
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L
OFFSITE TO BERKMAR DR
STORMWATER MANAGEMENT NARRATIVE
IH
_ ,
\AREA=0.30AC \ I r � r / // I i � I _,`-\ \�-� / /i / / \ \\
op
IMPERVIOUS =0.12 AC \
i \ I '
THE SITE HAS THREE MAJOR OUTFALL LOCATIONS:
\PERVIOUS - 0.00 AC _ I '� \ r , / I , - \ ` \ ,
FOREST = 0.18 AC \ I\ I / ;� ` \ ` / / r / / i I I ` \ \ \ \ \ \ \ \
1
/
BERKMARK DR - THIS OUTFALL IS LOCATED AT THE
\ I' /' �'
OFFSITE TO EX SWM / �, , I,'/ \\ �\ \\ \ \ s6> '43�R DR
, \
EASTERN SIDE OF THE SITE. WATER FROM THE EXISTING1DY
A
// /
\ / \
\ AREA = 1.23 AC 1 \ r I I \ \ ` ` r ' / 1
_
' ' ' / / /
DEVELOPMENT IS CONVEYED IN PIPES IN BERKMAR DRIVE
U I
Ile. No. 048560 �
_
r ,' ' - _ , - - _ IMPERVIOUS = 0.52 AC '
_ 'i / \ 1/ I-t I , , / r / / / I , ' I / I I I ` \ / r \ \ I
� ! =/' I 1 I r
ULTIMATELY OUTFALLING IN A MAN MADE DITCH THAT
o L
2 IS '
�/ PERVIOUS = 0.71 AC
FOREST =0.00AC � -- rl � I /'� I \r
/ /° II
DRAINS TO KEGLERS POND.
E �l 11 �/�/ //
I I� I I _---Jr l l I I \ \\
IO NAL
p r 1 (-1 c� r /,'r , l / r \ - I I
/
THERE IS AN INCREASE OF TOTAL AREA AND FLOW FOR
00
THIS DRAINAGE AREA FROM PRE -POST DEVELOPMENT.
z \
\
HOWEVER THE PROPOSED UNDERGROUND DETENTION
M
_ -_ / -�\- _ /, / ! ,
' / - _ �-- / i TO BERKMAR DR (PIPES) = \ / l l \ `` / - 1
SYSTEM DETAINS THE INCREASED FLOW.
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N -
r r / _ _ . L� _- ,\ r \ = _ , _
' AREA= 1.31AC � y/ �' \ _�- / / /
>
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IMPERVIOUS =0.23 AC `c���1 \ BERKMAR DR INLET 1 \ - - _ _ _ _ / \\ r \/
� / _ _ _ \ /
PERVIOUS - 1.07 ACLu
EX SWM SYSTEM -THIS OUTFACE IS LOCATED ON THE
SOUTHERN END OF THE SITE. A PORTION OF THE WATER
w a,
= >
s \ / r Y
l r I \ 0 / 100 \ \ 2�p
/ _-- ,/_ ------ AREA \ - ,,
FOREST = 0.01 AC \ \ , _ l \r / l \ \ r
\ - '\� \\ \\
FROM THE EXISTING SITE DRAINS TO AN UNDERGROUND
< u Q) 3
_ ',' - / /''//IMPERVIOUS =0.15 AC \ \ / / r / I /'/
550 \ - 6. "/ 5 ,'� %/io/ , !' / , _ , /
\ - 25 0- �' �
/'/irir/ PERVIOUS=0.26AC
DETENTION SYSTEM WHICH DISCHARGES TO A
o �
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\ \ \ � `� _ / _ _ _ _ , ,, /r�/ r // f _
f FOREST = 0.06 AC 1 1 r \ /
BIORETENTION SYSTEM. THE OUTFACE FROM THE
Q
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y //
BIORETENTION ENTERS A PIPE SYSTEM THAT PASSES
w - �;
o �
o
-
,�
UNDER BERKMAR DRIVE THAT OUTFALLS TO A MANMADE
c� W "'
a
/
BERKMAR DR INLET 2 / O/
DITCH THAT DRAINS TO KEGLERS POND.
J //
AREA =0.06AC
; / /
TO EX SWM / / , , \\ / / IMPERVIOUS =0.06 AC / // I,N, / / ,' 1
THERE IS AN INCREASE IN IMPERVIOUS AREA FROM THE
c� ' �0
0
���//
AREA = 2.60 AC ,� \, / r
_ 1i l r ri //i PERVIOUS = 0.00 AC / - , // / \
} / / ` ' r/ /
PRE TO POST DEVELOPED CONDITION IN THIS DRAINAGE
AREA. HOWEVER AN UNDERGROUND DETENTION SYSTEM
IMPERVIOUS =1.15 AC \ �/,�' FOREST = 0.00 AC , - - - _ \ / l
N
w
_ _ 1p i-- \ , , l
_
/ OFFSITE TO 30" RCP PERVIOUS = 1.05 AC ' d'-1-� / '� r' / �/i r �/ ' i I / / / Jr
' "' , ® BERKMAR DR INLET 3A \ \\\ , \
IS BEING INSTALLED TO DETAIN THE FLOW. THE OUTFACE
�M
\ _ _ ,/ /' \
'rl
,/ / \ , / / /
r AREA = 9.96 AC I / / / / / / / r /� _- - - _ - ', - _ ` \ FOREST = 0.40 AC \ r /i / / / \
' - - \\\ AREA =0.44AC �/ < \ \ \ / , /` /
FROM THE PROPOSED DETENTION SYSTEM TIES TO THE
o w
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IMPERVIOUS =0.08 AC I I r / �^ _ -' / `\
/ \ \ I l �� r /l / IMPERVIOUS =0.11 AC \ / \
I I / - s \ \ \ / / / �
/ �
OUTFALL PIPE FROM THE BIORETENTION FILTER PRIOR
- _ /�/' ,
PERVIOUS = 0.31 AC I � I / / / / „E - - _ = � \ \ _ \ \ \ - / / // , \ \ - /
, /, r / /
\\\ PERVIOUS = 0.15 AC \
I \ ° - - - - , / //
FOREST=9.57AC // f/� '-
TO LEAVING THE SITE.
r I I \\\\ 115 , '-- `-_ -' � `�\ �� \ - -- / / _ / / FOREST =0.18AC
ui
30 RCP CULVERT THE WESTERN END OF THE SITE
o
o
\I \ �\`BERKMAR DR INLET 3
\ \ \ \ \ \\ \ 1 I \ 0 _
DRAINS TO AN EXISTING 30" CULVERT. THIS CULVERT
QD
\ \ \ \ t \'\ \ \ \\\ \ \ \ - S�p_-� - _ _ ./ - \ �\ ,i �',/ / ,� / / / r / AREA = 0.30 AC / _ / / / / /
\ \ \ \ \\\ \ I � I I � \ _ - - ; _ _ , _ \ II „ / / , ' �
�/ IMPERVIOUS =0.30 AC , ' 1 / \ / /,' , / ' ' ` /
I III 1 1 TO 30" RCP = - - - - _ % - - ° \ a J 'y-/'/ " r / / / / / ' ' / / r > / /
l
ENTERS A PIPE SYSTEM THAT PASSES UNDER BERKMAR
DRIVE AND OUTFALLS TO MANMADE DITCH THAT DRAINS
o
_
\� -
\ \\ I \ - _ = = - 525 - _- •� _ ---r 1 PERVIOUS = 0.00 AC -
\ \\ \ \ AREA = 3.45 AC >8• - _ , , 1 / /, /,// r
\ r /�/ FOREST /
TO KEGLERS POND.
w
__-- _ _ -- _�
\ w\ IMPERVIOUS =0.03 AC _ �" � 1 1 / /
-_--�8osr �_- s2o y / // ERKMAR DR INLET4A _\ 1 1 / ► l�/ / , /r/err I
�\cr.\\ >\\ =� '/ J^ - I
PERVIOUS = 0.30 AC /r//
wLu
=
a
_-- - _ _ _\\�-_
o\ \\\\\ \ -_ - _ _ _ _ _ _ - ��, �I / AREA - 0.34 AC - \ 1 r I / I ! ' \ , , /' /' 11 I �1 \
THE TOTAL AREA IN THIS DRAINAGE AREA IS REDUCED
Q
a
_ _
o\\\ \ \ \l FOREST = 3.12 AC \� - _ - - - -- _ _ - \ \ _. _ _ - _ 1 / /D , / _ \ \ I I I I I ' / i / \ \ \
\ \ \\\ \\ \ \ \\\\rn\\"r\\. \\\\\\ \\,, ,,\ ��� �� - _------ -__, \-- I 15 / ` / IMPERVIOUS =0.07AC I / r ,r \ \\
\ \ \ _ _ - - 'S' / f I - ® /r / \
\ - - - 515 \\ I I I I I ' ' 'r ' ' \ \\\
FROM THE PRE TO POST DEVELOPED CONDITION.
ADDITIONALLY THERE A SLIGHT PERVIOUS
z
o
\ \ \ o -. - - /, PERVIOUS = 0.17 AC `\ \\
\ \ �\ \ \\ \ \ \ \ \ \ - - - - - - - - - ^ \\ _ i r / // \ \ \ / / f / r f/ 1 \ \
p l/r
IS INCREASE IN
cn
DATE
\ _ _ _- � - -.�-- FOREST = 0.10 AC _ _ _ _ �\ \ \� � - \ \
\\ \ �\ _ _ _ / r I _ _ _ \ \ _ J > � > � ;', r f / 1 \ \ \ \ �
\ \ \ ` I I/
AREA FROM PRE TO POST DEVELOPMENT.
>
�
-----_-IBC-SWM --
BERKMAR DRINLET 4OINT 1
o
040918
AREA = 0.10 AC - ' \_ _ _ _- _ _�; , ! �' ,'�' / / \`\ \ \KECzLtRS__
LIMITS OF ANALYSIS (CHANNEL & FLOOD PROTECTION):
r
DRAWN BY
POINT 1 -THE DOWNSTREAM CONDITION BEYOND THE
\ \ \ \ \\\\ _ \\ o� \\ \ \\\ \ \ \" \ ,-�� \\- \ \ so„ ` , / r //rr/l IMPERVIOUS =0.10 AC _ _ / , / / / / 1 \ \ \ 1?�tvD N
\ \ \ \ \ \ \\ \ \\\ \ \ \ \ \ P / _ _ _ / / / \ \ \ \
\ \ \ 0 \�\ s \ \\ \ \ \\ \ \` I \ ? \ \� PERVIOUS = 0.00 AC _ _ / \ \
tis o \ �� \ ` `� �\ \\ \ \\` \ \ ` i �r ` ° t /r �'� _ - _ _ - _ _ / % / , / \ \ \
SITE OUTFALL IS A SERIES OF MANMADE STORMWATER
J. WILSON
DESIGNED BY
J. WILSON
, \ \\\\\ _ _
\ \ \ \ \ \ \ \ \ \ \ \\ \ \ \ \ �Ss/>„ \ \\ \ \\ �s\ \\ \\ \\\`� / r >\/ \ Ili// / / FOREST - 0.00 AC _ _ _ ,' _ - -_ _\\ \ \ \
' ' - ` `\
\ \ \ \ I l r \ \ \ \\\ `\\\`\\`•� a� \\\moo\\\\\\\\ � \\ \\\ \ r \ Il//�/_ ,\ \\\ r\ \\ \\
\ \ \ \
MANAGEMENT SYSTEMS AND CONVEYANCE SYSTEMS.
THE PROPOSED LIMIT OF ANALYSIS IS THE EXISTING
•
\\ \ \
STORMWATER MANAGEMENT POND REFERENCES AS
CHECKED BY
\ \ \ \ \ - - - - - _ _
`` \ \ \ \\ �\ \ r % ' I TO BERKMAR DR (SHEETFLOW) = - =- _ - - _ `\ - _ \ ` ` ` \� \\ \\
\ \ \ I \ \ \ \ \ \ \ \ \ \\ 1 \ \ I _ a I I _- - -� _ - - - - \ \ �\
I�\
THE REGIONAL KEGLERS POND), WHICH WAS STUDIED
\ \ I \ \ \ \ \ \ \ \ \ \ \ \ \\��I ----\ I AREA =0.28AC -_ -;,�- \ -- __ _\ \\\
-OUT ALL \ / 1 , _ _� - ;; ; \ \ \ ; _ _ - - _ _ _ _ \ \ \ \\ � \ \ \ \ \ _ \ \�
®- - / X SWM \ \ IMPERVIOUS =0.00 AC - _ ,\1 \ _ _ _ \ \ \ \ \ \ `
/ \ \
' y \\ \ \I \\'
UNDER THE BERMKAR DRIVE NORTH EXTENSION
EXISTING "KEGLER'S: DETENTION BASIN STORMWATER
•
•
C. PENNETTI
SCALE
__ _= n ' r OUTFACE \ - PERVIOUS - 0.28 AC = -' \ \ \ ` - '�' =� \ �' �\ �\\ �\ I \ \\
\ \ \ \ \`
•
_ 1
POINT \ ` - ,� ` ` %�= ==�\\ \ \' \\ \�� 1
�_/ / - FOREST =0.00AC \\\\ \\`�\��, \; / I
ANALYSIS" BY ALBEMARLE COUNTY ENGINEERING
- - _ .� _\; \\\ \\ /
�^ ` / , \ - _ - - - \\\\ \\\� \���� ; ; �\ \ ` \\ \ , / / //
DEPARTMENT (MARCH 1994). THE CONVEYANCE SYSTEM
,_ _ _ _ , - \\ ; ; < r /
`\
AREA = 0.30 AC \ 1 /� I / I / / / I I _ ,\ ' - / r / ,' /' _ \ \ \ `\ \ \
`\
MANAMDE CHANNEL INTO THE POND WAS RECENTLY
!
IMPERVIOUS =0.12 AC 1 / rrr` I I / / 1 r / , ' \ \
�// 1 1 / / I 1 � \ � J , , \ \ \
ANALYZED BY HARVEST MOON -PHASE 1 (WP0201600011)
I / ,
PERVIOUS = 0.00 AC I // /' \\ `, / / / / I / \ \ \ \ / / / ,' / \ \ \ \ \
\ I
TO DEMOSTRATE ADEQUACY OF THE CONVEYANCE
I//% r / I / r /
FOREST = 0.18 AC \ // / / / I i I \ \ \ / \ \ \ I \
OFFSITE TO EX SWM � \� /
SYSTEMS TO KEGLERS POND. THE PROPOSED OUTFACE
/ AREA = 1.23 AC r � I/ �, \ 1 \ / // /r
\ \ \ I / i \ \ \ , ,
CONDITION REDUCES THE 1 AND 10 YEAR PEAK
/
< _ _ , ,
IMPERVIOUS = 0.52 AC \� _ _/ , / r \ r 1/ 1-I Imo/ r /� , / BERKMAR DRY
DISCHARGE.
Q
h r / PERVIOUS = 0.71 AC \I I �. / / OUTFALL_
_ _ / ;/' / I 1 \ l 1 � l / r / I � POINT / I / I I \ \ / / / / \ � \\ I I I
_ � FOREST = 0.00 AC r F I/1 I / / / i/ - _ / I I \ \ \ / , / \ \ I
>O ' � I �/ l I l I 1 I
1 r \\
WATER QUALITY
a.
ro /' /° / I _ \ r r \
0 (� //f / _ -/ l l/ \ I I I \ /.
� r b I I
c 1/ ¢`^�// r1`� r �' / �t`� I 1 I �l �r � / i� - - � , I l 1 \ \ / / \ \ //
// / / ch I
THE PHOSPHOROUS REMOVAL REQUIREMENT FOR THE
SITE, AS IDENTIFIED IN THE VRRM SUMMARY PAGE ON
00
y62 \ - - - h� / / , //i i BERKMAR DR INLET 1 r / r l l l ` \\ / / I
5 p - h , TO BERKMAR DR (PIPES)_ / - r / , \ \ / / / \ Q` \\
SHEET C5.2, WILL BE MET THROUGH A THE PURCHASE OF
z
�_ _ .� /,/�/, -� - AREA = 0.45 AC _ , �/ , / , / \ \ \ \ \ // , z � \ J;/r
AREA = 1.36 AC �
IMPERVIOUS =0.15 AC / / / \ / / - -,
//� , IMPERVIOUS =0.27 AC _ _ /,
NUTIRENT CREDITS AND THE INSTALLATION OF
STORMCEPTOR SYSTEMS.
w
J
_ \
PERVIOUS = 1.09 AC �/ PERVIOUS = 0.26 AC
- --ss4- \ _�-- 1, FOREST - 0.04 AC�CAL�E 1
FOREST = 0.00 AC �� -
,V 1 \ \ ' \ i / 13 \ \ \ I _ ' ` \ r / 0 / \ \ 100` 200'
\ BERKMAR DR INLET 2 \ / / , � / / I r'/
550\
WATER QUANTITY
THE SITE IS CURRENTLY AN ANIMAL SHELTER AND
Q
\ \
- 266� o- / .4 _ 5�/PR-OF� rr/'ii�'; ,' yr-�AREA=0.06AC / / / --� \ / / \ \ /�i
�r/, ti ,� \ / , r \ _ ,
PARKING LOT. THE PROPOSED DEVELOPMENT INCLUDES
Lu
_ Jr,
y \ -� _ , " _ _ L � i \ � � r y , IMPERVIOUS =0.06 AC , , � � \ \ I
ADDITIONS, PARKING LOTS, AND ASSOCIATED
w
C
G
\ PERVIOUS = 0.00 AC \ , - /
INFRASTRUCTURE.
W
Lu
FOREST = 0.00 AC / / \ ,
\� f,, \ r/ yo i r rOl
\ - ` \�1 \ � 1 1
�r/i
CHANNEL PROTECTION
z
Q
\\\ ;� i� � r r/�/i�-, �' TOSWM B r ��
/ \ =!'/ //lr�� /rr i 0.42 i J \ - /' / l
THE SITE DEVELOPMENT DISCHARGES CONCENTRATED
�
u
z
AREA = AC //
TO EX SWM k' // r �rr r / / r \ ' ' l l l \
AREA '� \� , _ / r ri IMPERVIOUS =0.37 AC / _ / / // /
1.57 AC
STORMWATER RUNOFF INTO A CONVEYANCE SYSTEM
v
w w
Q
= / \ / / /// \ / \ /
// r/ / PERVIOUS=0.05AC
AND THEN DISCHARGES TO KEGLERS POND. THE THREE
J
IMPERVIOUS =0.96 AC / i
I _ /
r 0 FOREST = 0.00 AC I
MAJOR OUTFALLS ENTER A MANMADE DITCH AT
Q
_ - , \ , , / \
► l - //, /yr/
_ PERVIOUS / -- - ,iii/ ® \ / / //lam \
r \ _ //r� , l r \ \ ,
_ _ /� FOREST = 0.00 AC - _ _ ,�/ // / BERKMAR DR INLET 3A '/ ` \ ` \ ' \ / ' / / ` / /
� �
OFFSITE TO 30" RCP r '7.0g- ' ' / ' / - / // !
APPROXIMATELY THE SAME LOCATION BEFORE DRAINING
TO KEGLERS POND. THE POST DEVELOPED FLOW IS
J w
~ C°
Lu
r � - � �
00p-y / l - // r�i r AREA = 0.34 AC / / \ \ \ I / ' / / /
/ r/ II AREA = 9.96 AC // 'r\ \ / ��2'E A�3 =__ _��- j � / _ J - , / �
- l l l '� J r�//�//� / IMPERVIOUS =0.11 AC \ \ \ I / ' / / / /
I I IMPERVIOUS =0.08 AC 1\ (\ \ \11°15 - ` - - - �' \ \ / /! /
r / / �\In n° - - / / I r
/ ';/ r' / ' `, ` \I
BEING REDUCED TO BE LESS THAN THE PREDEVELOPED
FLOW. COMPUTATIONS ARE PROVIDED ON SHEET C5.1.
Q
Q
I \ N / ,' , _ - _ - / - , PERVIOUS = 0.15 AC /'ll / ,' / /
, \
\ PERVIOUS = 0.31 AC \\\ 1 / / c \ , , , - - TO SWM A ' = / _ / /' ' - ) I I ' / \
1 - 1 �_ _ � _ s / - FOREST = 0.08 AC r \ \ / /
/
THESE VALUES INCLUDE THE OFFSITE CONVEYANCE UP
w
, �\ 1 1 -- � , , / / r /
II` _ / \
„3:
\ \ FOREST = 9.57 AC \\ \ \ 1 \1 \ \`\ \ I I /� _ - -= AREA = 1.02 AC / ! i r / r r \ / l r / /
\ \ BERKMAR DR INLET 3
r- �' �/ / / / / \ `, / / / / / , / // / \
STREAM FROM THE SITE.
THE OUTFACE IS A MANMADE CHANNEL/MANMADE POND.
IMPERVIOUS =0.52 AC \ _ �' /'
AREA - 0.30 AC /
/ /
/ /
PERVIOUS = 0.50 AC I C, y / / / IMPERVIOUS =0.30 AC
TO 30 RCP -
THIS POST -DEVELOPMENT CONDITION SATISFIES
\ - - - --=-- _ P `
\ \ \ \ \ \ \\ \\ \\ \\ \\ \\ l \ \ - - FOREST = 0.00 AC --r =- -�_ L p0 \ / // / / / / PERVIOUS = 0.00 AC ` \ / / ' / / / /
\\\\\\\ \ AREA = 2.85 AC - , - -_ --- �.\��p�P�p /
9VAC870-66 B.1.(a).
< , _ QL V, / r rr /
\\\\\\ \\\\\, \� \\ � `\
\\\ \\ \\\ \ \ <r - - - _ _ 5 / // / FOREST = 0.00 AC
\ \ \ \ \ \ \ \ \\ \\ \\ \ w\\ IMPERVIOUS =0.00 AC�,
��
\\ \\\\�` �\`s\ .� G / - /
\ PERVIOUS = 0.33 AC � \� _ - ,_ _ - ,�O �Q,''��0�/,��o,P JI -//,j, ��� BERKMAR DR INLET4A _\// I /// ' /r///i i1
I
FLOOD PROTECTION
\ \ \ \ \\\\\ _ _ _ 1 _ //
\ \ \ \ \ - / \\
, FOREST - 2.52 AC-_ _- _ p� Q�`� OJ , 'j, r AREA = 0.30 AC \ \ \ 1 I r/� I \ ,' % /r I�
` < ` \ \\� � \` � \ \ \ \ ; _ - _ _ _ _ _ - �' s I ` /,, / IMPERVIOUS =0.07 AC \ I I 1 I \
- ® / r \\\\\\
THE CONCENTRATED STORMWATER FLOW FROM THE
SITE HAS BEEN ANALYZED FOR THE 10 YEAR STORM TO
L•L
un
/ \ \ � - _ // ; ,
---_.PROf�$ - $ \\ I
\ Q O� PERVIOUS = 0.17 AC - `` �` \ / / \ \ ` ` /, / // 111 \\ \ \\
p V �o , pI /////- \\_ \\\ \
/
VERIFY THAT FLOOD PROTECTION REQUIREMENTS HAVE
BEEN SATISFIED. THE SITE DOES NOT EXPERIENCE
_
\ \ \ \ \ \ ` �\ •\ •s\ -- ^ - - - \ 1 \ r �y / ( BERKMAR DR INLET 4 _
POINT 1
LOCALIZED FLOODING. COMPUTATIONS ARE PROVIDED
AREA =0.10AC KEGLERS
ON SHEET C5.1
IMPERVIOUS =O.lOAC _---,_-- __- /
\ \ \ \ \\ \ \ \\ \ \ \ P // _ - _ _ , / , / 1 \ \ POND
AS REQUIRED BY CONDITION 9VAC-870-66 C.1
\ \ \ \ \ \ \ \ \ \ N6 0 \ \ s \\\\ \\ \\ \\ \`\\\ PERVIOUS = 0.00 AC
\ _ - /
I i \ '� \ \\
POST -DEVELOPMENT FLOWS ARE CONFINED TO THE
\ \ \\` �` / I I// / / FOREST - 0.00 AC -_ _ - - - _ - _ - / \ \\
STORMWATER CONVEYANCE SYSTEMS.
�N\ \\\` \\\� `
\ '` ' //- `/, -�
NOTES:
\\\� ----; _-----_ \\��_ \ \"
\\ \\ \ I I TO BERKMAR DR (SHEETFLOW) -_� - -_ _ _ \ _ _ \ \\ \\ \\
I
\\ \ \
�\
_- _ _ _
-�_ _ \ \ \ \ \ \` `
111, _ - _ ` \ \ \
30 R _ \ - \ \
_ _
\ _ AREA = 0.28 AC - \ \
- I\ t \
\` \
1. UPSTREAM DRAINAGE AREAS BASED ON
JOB NO.
__�\ _ \ \ �
IMPERVIOUS =O.00AC =_ - � \ �- _�-'--'\� \
11111 cc __/ /\\OUTTL rr \� EX \ l\ _����\ \ _ ��-_�\�� \ ��� \ �_ \ \ \\\\
1�
PREVIOUSLY APPROVED PLAN SHOWN N SHEET
IOUS O S O O S
40204
I OUTFALL PERVIOUS = 0.28 AC\\_I \ \ \\\ ` ,-
r \ \�\ r / '
- \\\�\��
C5.3.
_ j' FOREST=O.00AC = - �- \\\\ � ��;� \\ � � \\ \ / I
2. SURVEY INFORMATION ON THIS SHEET BEYOND
SHEET NO.
PROPERTY LINE IS DERIVED FROM COUNTY GIS.
CS. O
m
Q
L
SUBBASIN SUMMARY
THIS SUMMARY IS FOR ON SITE STORMWATER CONVEYANCE
Subbasin Summary
Subbasin Area Weighted
ID
(ac)
Curve
Number
S_1 C1
0.17
89
S_1 C2
0.20
91
S_1 C3
0.03
86
S_2F
0.23
90
S_2H
0.70
88
S_3A
0.33
74
Total
Total
Total
Peak
Rainfall
Runoff
Runoff
Runoff
Volume
(in)
(in)
(ft3)
(cfs)
5.50
4.28
2642
1.1
5.50
4.42
3212
1.3
5.50
3.86
420
0.2
5.50
4.36
3636
1.5
5.50
4.20
10667
4.5
5.50
2.81
3366
1.5
INLET SUMMARY
THIS SUMMARY USES THE FLOW RATES DERIVED FROM THE 5.5" AN
HOUR INTENSITY STORM MODEL.
Inlet Summary
Element Inlet Peak
Peak Flow
Peak Flow
Inlet
Allowable
Max Gutter
Max Gutter
Time of
ID Location Flow
Intercepted
Bypassing
Efficiency
Spread
Spread
Water Elev.
Concentration
by
Inlet luring
Peak
during Peak
during Peak
Inlet
Flow
Flow
Flow
ys hh:mm:ss)
(cfs)
(cfs)
(cfs)
(%)
(ft)
(ft)
(ft)
0
00:05:00
1C1 On Sag 1.1
N/A
N/A
N/A
7
6.8
532.1
0
00:05:00
1 C2 On Grad( 1.3
1.2
0.1
92.57
7
7.0
533.2
0
00,05,00
1C3 On Grad( 0.2
0.2
0.0
100.00
7
1.6
535.2
0
00:05:00
2F On Grad( 1.5
1.4
0.2
89.84
7
7.6
528.4
0
00,05,00
2H On Sag 4.5
N/A
N/A
N/A
7
13.6
525.6
0
00,05,00
3A On Sag 1.5
N/A
N/A
N/A
7
8.2
542.1
PIPE (LINK) SUMMARY
THIS SUMMARYIS FOR ONS/TE STORMWATER CONEYANCE. IT USES
THE FLOW RATES DERIVED FROM THE 10 YEAR STORM MODEL.
Pipe Results
Element Peak Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow
ID
Flow
Capacity
Design Flow
Velocity
Time
Depth
Depth/
Ratio
Total Depth
Ratio
(cfs)
(cfs)
(ft/sec)
(min)
(ft)
1BA
2.6
13.3
0.2
8.4
0.1
0.4
0.3
1C1C
2.6
23.2
0.1
12.5
0.0
0.3
0.2
1C21
1.4
8.7
0.2
5.2
0.3
0.3
0.3
1 C32
0.2
8.7
2.9
0.7
0.1
0.1
1CB
2.4
7.0
-0.0
0.4
5.2
0.0
0.5
0.4
2BA
5.7
6.5
0.9
5.9
0.1
0.9
0.7
2CB
5.4
6.5
0.8
5.9
0.1
0.9
0.7
2ED
5.8
6.5
0.9
6.0
0.1
0.9
0.7
2FE
5.8
6.5
0.9
6.0
0.1
0.9
0.7
2G F
4.5
5.6
0.8
5.1
0.4
0.9
0.7
2HG
4.5
7.9
0.6
6.7
0.1
0.7
0.5
STORM SEWER COMPUTATION NOTES
THIS SHEET IS ONLY INTENDED TO PROVIDE HYDROLOGIC AND
HYDRAULIC COMPUTATION INFORMATION.
REFER TO STORM PLAN/PROFILES FOR DESIGN INFORMATION
(LENGTH, INVERTS, SIZE, ELEVATIONS, ETC).
1. STORM EVENT MODEL IS DERIVED FROM NOAA DATA
(CHARLOTTESVILLE, VIRGINIA, USA) TO DEVELOP A 24
HOUR RAINFALL EVENT (TYPE II DISTRIBUTION).
1.1. STORM 01 YEAR- 3.01"
1.2. STORM 10 YEAR - 5.5"
2. HYDROLOGIC COMPUTATIONS PROVIDED ARE BASED
ON TR-20 METHODOLOGY.
2.1. IMPERVIOUS RUNOFF CURVE NUMBER = 98
2.2. TURF RUNOFF CURVE NUMBER = 61
2.3. FOREST, OPEN SPACE, UNDEVELOPED CN = 55
3. HYDRAULIC COMPUTATIONS FOR THE CLOSED
CONDUIT SYSTEM ACCOUNT FOR INLET SHAPING (0.5 X
HEAD LOSS)
4. INLET COMPUTATIONS ASSUME 2" LOCAL DEPRESSION
FOR INLETS LOCATED ALONG A CURB.
5. AREAS LISTED IN VRRM SPREADSHEET (ON C5.2) IS
BASED ON DISTURBED AREA. A LARGER AREA DRAINS
TO THE SITE OUTFALL. SEE SHEET C5.0
SUBBASIN SUMMARY (STORMWATER MANAGEMENT)
THIS SUMMARY /S FOR THE ENTIRE SITE, AS WELL AS ANY OFFSITE
AREAS /T /S MODLED USING THE 1 YR STORM
Subbasin Summary
Subbasin
Area Weighted
Total
Total
Total
Peak
Time of
ID
Curve
Rainfall
Runoff
Runoff
Runoff
Concentration
Number
Volume
(ac)
(in)
(in)
(ft3)
(cfs) (days hh:mm:ss)
OFF_30IN
9.96
56
3.01
0.21
7629
1.7
0
00:05:00
OFF_30IN_PRE
9.96
56
3.01
0.21
7629
1.7
0
00,05,00
OFF-BERKMAR-POST
0.30
72
3.01
0.82
897
0.4
0
00,05,00
OFF-BERKMAR-PRE
0.30
72
3.01
0.82
897
0.4
0
00:05:00
OFF_BIO_POST
1.23
77
3.01
1.06
4719
2.0
0
00,05,00
OFF B IO PRE
1.23
77
3.01
1.06
4719
2.0
0
00:05:00
Post 30IN RCP
2.85
56
3.01
0.22
2224
0.5
0
00:05:00
Post-BERKMAR
1.36
68
3.01
0.65
3194
1.2
0
00,05,00
Post_Berkmar_Sheet
0.28
61
3.01
0.37
375
0.1
0
00:05:00
Post Bio Out
2.01
78
3.01
1.14
8332
3.6
0
00,05,00
Post_New_Det_01
1.02
80
3.01
1.25
4625
2.0
0
00,05,00
Post _New_Det_02
0.42
94
3.01
2.32
3537
1.5
0
00:05:00
Pre_301N_RCP
3.45
56
3.01
0.22
2755
0.7
0
00,05,00
Pre-BERKMAR
3.30
72
3.01
0.80
9631
3.9
0
00:05:00
Pre-Bio
2.60
76
3.01
1.05
9872
4.2
0
00,05,00
S_4A
0.30
68
3.01
0.65
708
0.3
0
00,05,00
S_In1
0.45
73
3.01
0.85
1393
0.6
0
00:05:00
S_In2
0.06
98
3.01
2.76
601
0.2
0
00,05,00
S_In3
0.30
98
3.01
2.78
3025
1.2
0
00:05:00
S_In3A
0.34
72
3.01
0.79
979
0.4
0
00:05:00
S In4
0.10
98
3.01
2.77
1007
0.4
0
00:05:00
SUBBASIN SUMMARY (STORMWATER MANAGEMENT)
THIS SUMMARY IS FOR THE ENTIRE SITE, AS WELL AS ANY OFFSITE
AREAS /T /S MODLED USING THE 10 YR STORM
Subbasin Summary
Subbasin
ID
Area Weighted
Curve
Number
(ac)
Total
Rainfall
(in)
Total
Runoff
(in)
Total Peak Time of
Runoff Runoff Concentration
Volume
(ft3) (cfs) (days hh:mm:ss)
OFF_30IN
9.96
56
5.50
1.28
46134
18.1
0
00:05:00
OFF_30IN_PRE
9.96
56
5.50
1.28
46134
18.1
0
00:05:00
OFF-BERKMAR-POST
0.30
72
5.50
2.61
2839
1.3
0
00:05:00
OFF-BERKMAR-PRE
0.30
72
5.50
2.61
2839
1.3
0
00:05:00
OFF_BIO_POST
1.23
77
5.50
3.01
13453
5.9
0
00:05:00
OFF_BIO_PRE
1.23
77
5.50
3.01
13453
5.9
0
00:05:00
Post_301N_RCP
2.85
56
5.50
1.29
13325
5.2
0
00:05:00
Post-BERKMAR
1.36
68
5.50
2.27
11221
4.9
0
00:05:00
Post_Berkmar_Sheet
0.28
61
5.50
1.68
1707
0.7
0
00:05:00
Post_Bio_Out
2.01
78
5.50
3.15
22983
10.1
0
00:05:00
Post_New_Det_01
1.02
80
5.50
3.32
12293
5.4
0
00:05:00
Post_New_Det_02
0.42
94
5.50
4.76
7253
2.9
0
00.05.00
Pre_301N_RCP
3.45
56
5.50
1.30
16306
6.4
0
00:05:00
Pre-BERKMAR
3.30
72
5.50
2.57
30810
13.5
0
00:05:00
Pre-Bio
2.60
76
5.50
2.99
28257
12.4
0
00.05.00
S_4A
0.30
68
5.50
2.28
2482
1.1
0
00:05:00
S_In1
0.45
73
5.50
2.66
4347
1.9
0
00.05.00
S_In2
0.06
98
5.50
5.26
1145
0.4
0
00.05.00
S_In3
0.30
98
5.50
5.26
5730
2.2
0
00:05:00
S_ln3A
0.34
72
5.50
2.55
3147
1.4
0
00,05,00
S In4
0.10
98
5.50
5.26
1910
0.7
0
00,05,00
DRAINAGE AREA SUMMARY:
THE DRAINAGE AREAS LISTED BELOW INCLUDE BOTH THE TOTAL
'DRAINAGE AREA' TO THE OUTFALL POINT (DITCH THAT DRAINS TO
KEGLERS POND) AS WELL AS THE DISTURBED 'SITE AREA'.
PRE DEVELOPED AREA
A SUMMARY OF THE PRE -DEVELOPED DRAINAGE AREAS AND
WEIGHTED CURVE NUMBERS /S PROVIDED ON THIS SHEET
POST DEVELOPED AREA
A SUMMARY OF THE POST -DEVELOPED DRAINAGE AREAS AND
WEIGHTED CURVE NUMBERS /S PROVIDED ON THIS SHEET
THE PEAK FLOWS LISTED BELOW ARE FOR PRE AND POST RUNOFF
CONDITIONS AT THE POINT OF ANALYSIS, AS NOTED IN THE
STORMWATER MANAGEMENT NARRATIVE. THE PEAK FLOW REDUCTION
OCCURS DUE TO THE INSTALLED DETENTION SYSTEMS
1 YEAR, 24 HOUR STORM
PRE -DEVELOPMENT SITE 12.03 CFS
POST -DEVELOPMENT SITE 11.80 CFS
10 YEAR, 24 HOUR STORM
PRE -DEVELOPMENT SITE 57.20 CFS
POST -DEVELOPMENT SITE 54.46 CFS
PIPE (LINK) SUMMARY
THIS SUMMARYIS TO SHOW PIPE ADEQUACY FOR THE EXISTING
STORMP/PES IN BERKMAR DR. IT USES THE FLOW RATES DERIVED
FROM THE 10 YEAR STORM MODEL.
Pipe Results
SN Element
Peak
Design Flow
Peak Flow/
Peak Flow Travel
Peak Flow
Peak Flow
ID
Flow
Capacity
Design Flow
Velocity
Time
Depth
Depth/
Ratio
Total Depth
Ratio
(cfs)
(cfs)
(ft/sec)
(min)
(ft)
6 SITE-BERKMAR1
6.5
9.9
0.7
8.6
0.1
0.7
0.6
7 BERKMAR 1-2
8.4
15.5
0.5
8.9
0.1
0.8
0.5
8 BERKMAR 2-3
8.8
12.7
0.7
7.8
0.4
0.9
0.6
9 BERKMAR 3-4
12.3
14.8
0.8
9.4
0.1
1.0
0.7
10 BERKMAR 4 -DITCH
14.1
35.8
0.4
19.0
0.1
0.7
0.4
STEEL PLATE
(14 GAUGE)
J VRII IIiL
INV 523.24
WEIR PLATE SECTION
WEIR PLATE IN 60" PIPE
No Scale
STEEL PLATE
(14 GAUGE)
0.0 %_W11 1 I V L
INV 510.12
WEIR PLATE SECTION
WEIR PLATE 84" PIPE
No Scale
T7P OF STORAGE
8.24
_10 YEAR WSE
527.30
1 YEAR WSE
525.29
TP OF STORAGE
17.12
_ _ _10_YEAR W_SE_
516.56
1 YEAR WSE
512.45
TH 00�
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JOB NO.
40204
SHEET NO.
C5.1
L-
A soils
B Soils
C Soils
D Soils
Totals
% of Total
Forest/Open (acres)
0.00
0.00
0.00
0.00
0.00
0
Managed Turf (acres)
0.00
1.30
0.00
0.00
1.30
52
Impervious Cover (acres)
0.00
1.20
0.00
0.00
1.20
48
2.50
100
Virginia Runoff Reduction Method Worksheet Virginia Runoff Reduction Method Worksheet Virginia Runoff Reduction Method Worksheet TH Op
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------------------------------------------------------------------------------------
DEQ Virginia Runoff Reduction Method Re -Development Compliance Spreadsheet - Version 3.0 Site Compliance Summary Drainage Area Summary
BMP Design Specifications List. 2023 Draft Stds 8, Specs D H
Site Summary Maximum %RPre-ReDevelopment1Below
Load U1 La
20%
U ~'
Total Rainfall (in): 43 c. No. 04 560; �
a �P-
Total Disturbed Acreage: 2.50 �0
1
Site Land Cover Summary CYIONAL ��
Drainage Area Compliance Summary
Pre-ReDevelopment Land Cover (acres)
M i=
CREDITS TO BE PURCHASED
CD O
N V
N N
C
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Post-ReDevelopment Land Cover (acres) w ai ELU
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Site Tv and Land Cover Nutrient Loads O M O
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Total TP Load Reduction Required (lb/yr) 2.39 0.54 1.84
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Virginia Runoff Reduction Method Worksheet Virginia Runoff Reduction Method Worksheet 04/09/18
O
} DRAWN BY
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Drainage Area A Summary Runoff Volume and CN Calculations J. WILSON
Land Cover Summary 1-yearstorm 2-yearstorm 10-yearstorm DESIGNED BY
Target Rainfall Event (in) 0.00 0.00 0.00 •
• J. WILSON
• CHECKED BY
1.26 • C. PENNETTI
• • SCALE
BMP Selections
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NOTES: O
1. LANDCOVER LISTED IN VRRM SPREADSHEET IS BASED ON
LIMITS OF DISTURBANCE 0 �J
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JOB NO.
40204
SHEET NO.
C5.2
A soils
B Soils
C Soils
D Soils
Totals
% of Total
Forest/Open (acres)
0.00
0.00
0.00
0.00
0.00
0
Managed Turf (acres)
0.00
0.25
0.00
0.00
0.25
10
Impervious Cover (acres)
0.00
2.25
0.00
0.00
2.25
90
2.50
100
Final Post -Development
Post-
Post-
Adjusted Pre-
(Post-ReDevelopment
ReDevelopment
Development
ReDevelopment
& New Impervious)
(New Impervious)
Site Rv
0.88
0.82
0.95
0.82
Treatment Volume (ft3)
7,941
4,320
3,621
4,320
TP Load (Ib/yr)
4.99
2.71
2.28
2.71
Final Post -Development Load
(Post-ReDevelopment &New Impervious)
Pre-
ReDevelopment
TN Load (Ib/yr)
35.69
22.84
Pre-
Final Post -Development
Post-ReDevelopment TP
ReDevelopment
TP Load per acre
Load per acre
TP Load per acre
(Ib/acre/yr)
(Ib/acre/yr)
(Ib/acre/yr)
1.87
2.00
1.87
Total Runoff Volume Reduction (ft3)
0
Total TP Load Reduction Achieved (Ib/yr)
0.46
Total TN Load Reduction Achieved (Ib/yr)
0.00
Remaining Post Development TP Load
4.53
(Ib/yr)
Remaining TP Load Reduction (Ib/yr)
1.93
Required
A Soils
B Soils
C Soils
D Soils
Total
% of Total
Forest/Open (acres)
0.00
0.00
0.00
0.00
0.00
0
Managed Turf (acres)
0.00
0.25
0.00
0.00
0.25
20
Impervious Cover (acres)
0.00
1.01
0.00
0.00
1.01
80
Managed Turf
Impervious
BMP Treatment
TP Load from
Untreated TP Load
TP Removed
TP Remaining
Downstream Treatment
Practice
Credit Area
Cover Credit
3
Volume (ft)
Upstream
to Practice (Ibs)
(Ib/yr)
(Ib/yr)
to be Employed
(acres)
Area (acres)
Practices (Ibs)
14.a. Manufactured Treatment Device -
Hydrodynamic
0.25
1.01
3,664.49
0.00
2.30
0.46
1.84
Total Impervious Cover Treated (acres)
1.01
Total Turf Area Treated (acres)
0.25
Total TP Load Reduction Achieved in D.A.
0.46
(Ib/yr)
Total TN Load Reduction Achieved in D.A.
0.00
(Ib/yr)
D.A. A
D.A. B
D.A. C
D.A. D
D.A. E
Total
Forest/Open (acres)
0.00
0.00
0.00
0.00
0.00
0.00
Managed Turf (acres)
0.25
0.00
0.00
0.00
0.00
0.25
Impervious Cover (acres)
1.01
0.00
0.00
0.00
0.00
1.01
Total Area (acres)
1.26
0.00
0.00
0.00
0.00
1.26
D.A. A
D.A. B
D.A. C
D.A. D
D.A. E
Total
TP Load Reduced (Ib/yr)
0.46
0.00
0.00
0.00
0.00
0.46
TN Load Reduced (Ib/yr)
0.00
0.00
0.00
0.00
0.00
0.00
Drainage Areas
RV & CN
Drainage Area A
Drainage Area B
Drainage Area C
Drainage Area D
Drainage Area E
CN
91
0
0
0
0
RR (ft3)
0
0
0
0
0
1-year return period
RV wo RR (ws-in)
0.00
0.00
0.00
0.00
0.00
RV w RR (ws-in)
0.00
0.00
0.00
0.00
0.00
CN adjusted
100
0
0
0
0
2-year return period
RV wo RR (ws-in)
0.00
0.00
0.00
0.00
0.00
RV w RR (ws-in)
0.00
0.00
0.00
0.00
0.00
CN adjusted
100
0
0
0
0
10-year return period
RV wo RR (ws-in)
0.00
0.00
0.00
0.00
0.00
RV w RR (ws-in)
0.00
0.00
0.00
0.00
0.00
CN adjusted
100
0
0
0
0
ADEQUATE OUTFALL COMPUTATIONS
PEAK 2-YR FLOW TO A -A
Hydrograph Report
H,<,n,. rya.r.;,n.a.wr+w.w.mwwaa cw wemaM/wroaM w:.ho.s
�--uWir+tl4
oirw r:ete
Hyd. No. 10
Postdeveloped Adegrete Channel
Hvdrograph type - SCS Runoff
Peak 6whaige
51,01 cis
Storm frequency = 2 yrs
T me to peak
= 12 13 tys
lime interval - - 2 min
Hyd. volume
- 192.019cuft
Drainage area . 49.390 au
Curve number
- 888
Basin Slope = 0.0 %
Hydraulic length
= 0 It
Tc meutod =User
Dme of eonc, (TO
= 20 50 ran
Total precp. 3.68 in
Distribution
- Type II
Stem yurdI _ 24 his
Shape focloi
= 484-
Postdeveloped Adequate CltanI
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SECTION A -A CROSS SECTION
Channel Report
°
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CROSS SECTION A -A
User�defirred
Highlighted
Invert Elav (n) = 460 00
Depilr (n)
1 76
Slope (9n) = 25C
0ICIS)
= 51 01
- 'LN-valuo - o WO
Area (spn)
1 r
j
Velocty (it's)
= 4 l7
i@akulatbns
Wetted Penm (n)
- 1031
"Compute try Kncwn Q
Cr4 Depth, Yc(ft)
1 fti
Known Q (ds) = bl.01
Top Width (it)
9,28
EGL (ft)
= 211
($ta. E1, n){51a, El. nl._
tow" -Z0I IM, -a . _11LL.1i�@�0
<5fps OK
NOTE: SECTION A -A GEOMETRY BASED ON FIELD OBSERVATION AND MEASUREMENTS OF THE CHANNEL-
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48
-._ -- 6VERLAND FLA
100' @ 1.85
-- - 13.5 min
65B
t `
i
TOTAL DRAINAGE AREA = 49.39 AC
OFFSITE HOUSES = 115,999 SF = 2.66 AO' a
28C3
OFFSITE DRIVEWAY/PARKING = 272,837 SIF ~ 6.26 AC m
CN = 98 OFFSITE ROADS = 100,464 SF = 2.31 AC I )
i
OFFSITE TOTAL IMPERVIOUS = 489,300 SF11.23 AC f
- -
ONSITE PREDEVELOPED IMPERVIOUS AREA 1.93 AC
r
ONSITE POSTDEVELOPED IMPERVIOUS AREA 1.76 AC
OFFSITE FOREST/OPEN SPACE = 876,427 SF = 15.44 AC
CN = 55
ONSITE PRE/POST DEVELOPED FOREST/OPEN SPACE AREA = 0.84 AC
OFFSITE MANAGED TURF = 18.55 AC
CN = 61 ONSITE PREDEVELOPED MANAGED TURF = 1.40 AC
ONSITE POSTDEVELOPED MANAGED TURF = 1.57 AC
PREDEVELOPED CN
13.16 AC * 98 1289.68
19.95 AC * 61 1216.95
16.28 AC * 55 895.4
3162.79/49.39 = 68.88 CN
POSTDEVELOPED CN
12.99 AC * 98 1273.02
20.12 AC * 61 1227.32
16.28 AC * 55 895.4
3395.74/49.39 = 68.75 CN
CN VALUES' TAKEN FROM THE VIRGINIA RUNOFF REDUCTION METHOD FOR B SOILS.
P Ol N T OF -_-�
ANALYSIS
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SCALE: 1 "=100'
SOIL BOUNDARY (TYP)
47E
6 5 E
27C
J I.
100 2000 300
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PROJECT NO:15.0065
INDEX TITLE:
SHEET FROM WP0201600011 SHOWING PREVIOULSY APPROVED DRAINAGE AREA TO KEGLERS POND.
PROVIDED FOR REFERENCE ONLY
SW5
SHEET NO: 5 01 11
DATE: 2/19/16
TH 0p
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Section 6. Pollution Prevention Plan.
(reference County Code 17-404 and State Regulation 9VAC25-880-70 part II section A.4)
A. Plan showing pollution activities and prevention practices
(Provide a reduced 1 lxl7 copy of a site plan on which all of the following activity locations are clearly marked.
Keep this plan up-to-date with ongoing site changes and inspections.)
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
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Sources of Pollutants, loca
and prevention
chces
Pollutant, or Pollutant Prevention Practices,
Generating Activity Location on site Control Measures
C. Sources of Pollutants continued. Common activities and minimum control and prevention
practices
Pollutant, or Pollutant
Location on site
Prevention Practices,
Generating Activity
Control Measures
Follow Erosion and Sediment Control
Clearing, grading, excavating, and un-
Land disturbance area
Plan. Dispose of clearing debris at
stabilized areas
acceptable disposal sites. Seed and mulch,
or sod within 7 days of land clearing
Cover storm drain inlets and use drip pans
Paving operations
Roads and driveways
and absorbent/oil dry for all paving
machines to limit leaks ands ills
Direct concrete wash water into a leak -
Concrete washout and
Current location and detail shown on
proof container or leak -proof settling basin
cement waste
plan
that is designed so that no overflows can
occur
Enclose or cover material storage areas.
Mix paint indoors in a containment area or
Structure construction, stucco,
Structures
in a flat unpaved area. Prevent the
painting, and cleaning
discharge of soaps, solvents, detergents
and wash water, paint, form release oils
and curing compounds.
Water shall be filtered, settled or similarly
Dewatering operations
Dewatering sites shown on plan
treated prior to discharge as shown on
plan.
Designated areas for material delivery and
Material delivery and storage
Designated area shown on plan
storage. Placed near construction
entrances, away from waterways and
drainage paths
Material use during building process
Building areas
Follow manufacturer's instructions.MSDS's
attached.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Pollutant, or Pollutant
Location on site
Prevention Practices,
Generating Activity
Control Measures
Waste collection area will not receive a
substantial amount of runoff from upland
areas and does not drain directly to a
Current designated container areas on
waterway. Containers have lids covered
Solid waste disposal
plan
before periods of rain, or are in a covered
area. Scheduled collection to prevent
overfilling. MATERIALS NOT TO BE
BURIED ON -SITE
Convenient and well -maintained portable
sanitary facilities will be provided, and
Sanitary waste
Current locations shown on plan
located away from waterways or inlets.
Such facilities shall be regularly
maintained.
Apply fertilizers in accordance with
Landscaping operations
Landscape areas shown on plan
manufacturer's recommendations and not
during rainfall events
To be treated in a sediment basin or better
Wash Waters
Wash areas shown on plan
control as specified on plan. Minimize
the discharge of pollutants from
equipment and vehicle washin
Vehicle and equipment washing
Designated areas and details shown on
Provide containment and filtering for all
plan
wash waters per the plan
Minimization of exposure to precipitation and stormwater. Minimize the exposure of building materials, building products,
construction wastes, trash, landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste, and other materials
present on the site to precipitation and to stormwater.
(Identify all non-stormwater discharges to occur on your site. Keep this plan up-to-date with ongoing site
changes and inspections. See CGP, 9VAC25-880-70 section E for examples of non-stormwater discharges.)
D. Non-stormwater d
Discharge
Dust Control Water
Pollutants or Pollutant
Constituents
Sediment
Location on Site
As required inside LOD
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
E. Persons responsible for pollution prevention practices
(Provide the names and contact information for all persons responsible for prevention practices as listed above.)
F. Response and reporting practices
Minimize discharges from spills and leaks. Minimize the discharge of pollutants from spills and leaks and implement chemical spill
and leak prevention and response procedures as follows.
Respond to all spills, leaks and discharges as follows;
Materials and equipment necessary for oil or chemical spill cleanup will be kept in the temporary material storage trailers onsite.
Equipment will include, but not be limited to, brooms, dustpans, mops, rags, gloves, goggles, kitty litter, sand, saw dust, and plastic
and metal trash containers. All oil or other chemical spills will be cleaned up immediately upon discovery. Identify and stop source of
discharge. Use absorptive materials to soak up as much chemical as possible. Place all contaminated material in trash containers for
disposal.
Report all spills, leaks and discharges as follows;
Reports will be made to the following:
Virginia Department of Emergency Management
Emergency Operations Center (EOC)
Phone: (800) 468-8892
Spills large enough to reach the storm sewers will be reported to the National Response Center at 1-800-424-8802.
(Provide detailed response and reporting practices according to 9VAC25-880-70, Part II, section A.4.e.)
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
G. Pollution Prevention Awareness
(Describe training and procedures to provide awareness and compliance for all measures in this document;
waste management, wash waters, prevention measures, etc.)
The registered land disturber shall oversee all construction activities to implement and maintain pollution prevention measures. As
such training and procedures shall be provided by the contractor for each worker on site before they begin land disturbing activities.
Pollution Prevention Training shall include but is not limited to; Training on the proper storage and handling of hazardous solvent and
chemicals, per the manufacturers recommendation. Training on proper fuel storage and the use of fuel containment facilities located
on site. Training on the proper way to handle concrete/mortar washout areas, and the disposal of the waste water from these activities.
Additionally training shall be provided on the proper way to dispose of all debris related to the construction activity (hazardous and
non -hazardous materials). This list should not be deemed all-inclusive and if the contractor or registered land disturber deems that
additional pollution prevention practices are required training shall be provided for them.
Training on implementation of erosion and sediment control devices/procedures must be provided by registered land disturber each
time a new E&SC procedure is constructed.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 7. Discharges to impaired waters, surface waters within an applicable TMDL
wasteload allocation, and exceptional waters.
(Provide detailed measures for any applicable TMDL)
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 8. Qualified personnel
The following personnel are responsible for inspections;
(Provide the name, telephone number, and qualifications of the qualified personnel conducting inspections.)
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 9. Signed Certification
(Provide certification according to 9VAC25-870-370. For purposes of plan review and approvals, this
certification should be the owner of the property, the same signature as appears on the bonds and
applications. Another operator can be designated on the delegation of authority form to follow.)
CERTIFICATION
"I certify under penalty of law that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that qualified personnel properly gather and
evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or
those persons directly responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and imprisonment for knowing violations."
Owner/Operator Name: Angie Gunter
Company: Albemarle Society for the Prevention of Cruelty to Animals
Title
Signature:
Date
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 10. Delegation of authority.
(Provide the persons or positions with authority to sign inspection reports or to modify the stormwater pollution
prevention plan. A formal, signed delegation of authority is needed.)
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
the Construction General Permit (CGP), and that the designee above meets the definition of a "duly
authorized representative".
Operator Name:
Company:
Title:
Signature:
Date:
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 11. General permit copy
(Provide a copy of the construction general permit, 9VAC25-880)
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
COMMONWEALTH of VIRGINIA
DEPARTMENT OF ENVIRONMENTAL QUALITY
General Permit No.: VAR10
Effective Date: July 1, 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.
General Permit No.: VAR10
Page 1 of 21
PART
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;
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;
The support activity is identified in the registration statement at the time of general permit
coverage;
e. Appropriate control measures are identified in a stormwater pollution prevention plan and
implemented to address the discharges from the support activity areas; and
f. All applicable state, federal, and local approvals are obtained for the support activity.
B. Limitations on coverage
1. Post -construction discharges. This general permit does not authorize stormwater discharges that
originate from the site after construction activities have been completed and the site, including any
support activity sites covered under the general permit registration, has undergone final stabilization.
Post -construction industrial stormwater discharges may need to be covered by a separate VPDES
permit.
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:
General Permit No.: VAR10
Page 2 of 21
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
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.
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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 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:
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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 is 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;
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.
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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, if required, for coverage under the general VPDES
permit for discharges of stormwater from construction activities;
b. Upon receipt, a copy of the notice of coverage under the general VPDES permit for discharges of
stormwater from construction activities (i.e., notice of coverage letter);
c. Upon receipt, a copy of the general VPDES permit for discharges of stormwater from construction
activities;
d. A narrative description of the nature of the construction activity, including the function of the
project (e.g., low density residential, shopping mall, highway, etc.);
e. A legible site plan identifying:
(1) Directions of stormwater flow and approximate slopes anticipated after major grading
activities;
(2) Limits of land disturbance including steep slopes and natural buffers around surface waters
that will not be disturbed;
(3) Locations of major structural and nonstructural control measures, including sediment basins
and traps, perimeter dikes, sediment barriers, and other measures intended to filter, settle, or
similarly treat sediment, that will be installed between disturbed areas and the undisturbed
vegetated areas in order to increase sediment removal and maximize stormwater infiltration;
(4) Locations of surface waters;
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(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, 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;
(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
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(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.
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 an "agreement in lieu of a stormwater management plan" as defined in 9VAC25-870-10
from the VSMP authority, or a stormwater management plan prepared in accordance with annual
standards and specifications approved by the department. 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.
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;
Identify all nonstormwater discharges, as authorized in Part I E of this general permit, that are or
will be commingled with stormwater discharges from the construction activity, including any
applicable support activity;
d. Identify the person responsible for implementing the pollution prevention practice or practices for
each pollutant -generating activity (if other than the person listed as the qualified personnel);
e. Describe the pollution prevention practices and procedures that will be implemented to:
(1) Prevent and respond to leaks, spills, and other releases including (i) procedures for
expeditiously stopping, containing, and cleaning up spills, leaks, and other releases; and (ii)
procedures for reporting leaks, spills, and other releases in accordance with Part III G;
(2) Prevent the discharge of spilled and leaked fuels and chemicals from vehicle fueling and
maintenance activities (e.g., providing secondary containment such as spill berms, decks,
spill containment pallets, providing cover where appropriate, and having spill kits readily
available);
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(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;
(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.
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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
II I 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
g. Measures taken to address any evidence identified as a result of an inspection required under
Part 11 F.
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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.
2. Inspection schedule.
a. Inspections shall be conducted at a frequency of:
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(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;
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(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;
(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
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(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;
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.
General Permit No.: VAR10
Page 14 of 21
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).
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.
General Permit No.: VAR10
Page 15 of 21
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.
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.
General Permit No.: VAR10
Page 16 of 21
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:
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 111 1 2.
NOTE: The reports required in Part III G, H and I shall be made to the department and the VSMP
authority. Reports may be made by telephone, email, or by fax. For reports outside normal working hours,
leaving a recorded message shall fulfill the immediate reporting requirement. For emergencies, the
Virginia Department of Emergency Management maintains a 24-hour telephone service at 1-800-468-
8892.
General Permit No.: VAR10
Page 17 of 21
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:
For a corporation: by a responsible corporate officer. For the purpose of this chapter, a
responsible corporate officer means: (i) a president, secretary, treasurer, or vice-president of the
corporation in charge of a principal business function, or any other person who performs similar
policy -making or decision -making functions for the corporation; or (ii) the manager of one or more
manufacturing, production, or operating facilities, provided the manager is authorized to make
management decisions that govern the operation of the regulated facility including having the
explicit or implicit duty of making major capital investment recommendations, and initiating and
directing other comprehensive measures to assure long-term compliance with environmental laws
and regulations; the manager can ensure that the necessary systems are established or actions
taken to gather complete and accurate information for state permit application requirements; and
where authority to sign documents has been assigned or delegated to the manager in
accordance with corporate procedures;
b. For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or
c. For a municipality, state, federal, or other public agency: by either a principal executive officer or
ranking elected official. For purposes of this chapter, a principal executive officer of a public
agency includes: (i) the chief executive officer of the agency or (ii) a senior executive officer
having 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
General Permit No.: VAR10
Page 18 of 21
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 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.
General Permit No.: VAR10
Page 19 of 21
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 essential maintenance to ensure efficient
operation. These bypasses are not subject to the provisions of Part III U 2 and 3.
2. Notice.
a. Anticipated bypass. If the operator knows in advance of the need for a bypass, the operator shall
submit prior notice to the department, if possible at least 10 days before the date of the bypass.
b. Unanticipated bypass. The operator shall submit notice of an unanticipated bypass as required in
Part III I.
3. Prohibition of bypass.
a. Except as provided in Part III U 1, bypass is prohibited, and the board or department may take
enforcement action against an operator for bypass unless:
(1) Bypass was unavoidable to prevent loss of life, personal injury, or severe property damage.
Severe property damage means substantial physical damage to property, damage to the
treatment facilities that causes them to become inoperable, or substantial and permanent
loss of natural resources that can reasonably be expected to occur in the absence of a
bypass. Severe property damage does not mean economic loss caused by delays in
production;
(2) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment
facilities, retention of untreated wastes, or maintenance during normal periods of equipment
downtime. This condition is not satisfied if adequate back-up equipment should have been
installed in the exercise of reasonable engineering judgment to prevent a bypass that
occurred during normal periods of equipment downtime or preventive maintenance; and
(3) The operator submitted notices as required under Part III U 2.
General Permit No.: VAR10
Page 20 of 21
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;
c. The operator submitted notice of the upset as required in Part III I; and
d. The operator complied with any remedial measures required under Part III S.
5. In any enforcement proceeding, the operator seeking to establish the occurrence of an upset has the
burden of proof.
W. Inspection and entry. The operator shall allow the department as the board's designee, the VSMP
authority, EPA, or an authorized representative of either entity (including an authorized contractor), upon
presentation of credentials and other documents as may be required by law to:
1. Enter upon the operator's premises where a regulated facility or activity is located or conducted, or
where records 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.
General Permit No.: VAR10
Page 21 of 21
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.
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.
Z. Severability. The provisions of this general permit are severable, and if any provision of this general
permit or the application of any provision of this state permit to any circumstance, is held invalid, the
application of such provision to other circumstances and the remainder of this general permit shall not be
affected thereby.
Section 12. Inspection logs
(Provide templates for your inspections. Requirements are listed in 9VAC25-880-70, Part II, section B and F.)
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
STORMWATER INSPECTIONS FOR VSMP GENERAL PERMIT LAND DISTURBING ACTIVITIES
PROJECT:
MONITORING FOR THE WEEK BEGINNING:
RAINFALL:
Date of Rain I Amount (inches) I Initials
By this signature, I certify that this report is accurate
and complete to the best of my knowledge:
(Signature of Delegated Authority)
EROSION AND SEDIMENT CONTROL FACILITIES INSPECTED: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from
construction activities are to surface waters identified as impaired, inspections shall be conducted according to Part 84d.)
Facility Identification Date and Time of Inspection Operating Properly (Y/N) Description of inspection observations
OBSERVATION OF RUNOFF AT STORMWATER DISCHARGE OUTFALLS: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from
construction activities are to surface waters identified as impaired, inspections shall be conducted according to Part 84d.)
Stormwater
Discharge
Outfall
Identification
Date
Clarity
Floating
Solids
Suspended
Solids
Oil
Sheen
Other obvious
indicators of
stormwater
pollution
(list and describe)
Visible
sediment
leaving the
site?
(Y/N)
If yes, describe actions
taken to prevent future
releases
(may need to attach
additional information)
Describe measures taken to
clean up sediment outside
of disturbed limits (may
need to attach additional
information)
Clarity: Choose the number which best describes the clarity of the discharge where 1 is clear and 10 is very cloudy.
Floating Solids: Choose the number which best describes the amount of floating solids in the discharge where 1 is no solids and 10 the surface is covered in floating solids.
Suspended Solids: Choose the number which best describes the amount of suspended solids in the discharge where 1 is no solids and 10 is extremely muddy.
Oil Sheen: Is there an oil sheen in the stormwater discharge? Y or N.
STORMWATER INSPECTIONS FOR VSMP GENERAL PERMIT LAND DISTURBING ACTIVITIES
PROJECT:
MONITORING FOR THE WEEK BEGINNING:
RAINFALL:
Date of Rain I Amount (inches) I Initials
By this signature, I certify that this report is accurate
and complete to the best of my knowledge:
(Signature of Delegated Authority)
EROSION AND SEDIMENT CONTROL FACILITIES INSPECTED: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from
construction activities are to surface waters identified as impaired, inspections shall be conducted according to Par[ 1134d.)
Facility Identification Date and Time of Inspection Operating Properly (Y/N) Description of inspection observations
OBSERVATION OF RUNOFF AT STORMWATER DISCHARGE OUTFALLS: (Inspections shall be conducted according to Part II1`2 of the Permit. However, if the discharges of stormwater from
construction activities are to surface waters identified as impaired, inspections shall be conducted according to Pan 1134d.)
Stormwater
Discharge
Outfall
Identification
Date
Clarity
Floating
Solids
Suspended
Solids
Oil
Sheen
Other obvious
indicators of
stormwater
pollution
(list and describe)
Visible
sediment
leaving the
site?
(Y/N)
If yes, describe actions
taken to prevent future
releases
(may need to attach
additional information)
Describe measures taken to
clean up sediment outside
of disturbed limits (may
need to attach additional
information)
Clarity: Choose the number which best describes the clarity of the discharge where 1 is clear and 10 is very cloudy.
Floating Solids: Choose the number which best describes the amount of floating solids in the discharge where 1 is no solids and 10 the surface is covered in floating solids.
Suspended Solids: Choose the number which best describes the amount of suspended solids in the discharge where 1 is no solids and 10 is extremely muddy.
Oil Sheen: Is there an oil sheen in the stormwater discharge? Y or N.
STORMWATER INSPECTIONS FOR VSMP GENERAL PERMIT LAND DISTURBING ACTIVITIES
PROJECT:
MONITORING FOR THE WEEK BEGINNING:
RAINFALL:
Date of Rain Amount (inches) Initials
By this signature, I certify that this report is accurate
and complete to the best of my knowledge:
(Signature of Delegated Authority)
EROSION AND SEDIMENT CONTROL FACILITIES INSPECTED: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from
construction activities are to surface waters identified as impaired, inspections shall be conducted according to Part 84d.)
Facility Identification Date and Time of Inspection Operating Properly (Y/N) I Description of inspection observations
OBSERVATION OF RUNOFF AT STORMWATER DISCHARGE OUTFALLS: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from
construction activities are to surface waters identified as impaired, inspections shall be conducted according to Part I134d.)
Stormwater
Discharge
Outfall
Identification
Date
Clarity
Floating
Solids
Suspended
Solids
Oil
Sheen
Other obvious
indicators of
stormwater
pollution
(list and describe)
Visible
sediment
leaving the
site?
(Y/N)
If yes, describe actions
taken to prevent future
releases
(may need to attach
additional information)
Describe measures taken to
clean up sediment outside
of disturbed limits (may
need to attach additional
information)
Clarity: Choose the number which best describes the clarity of the discharge where 1 is clear and 10 is very cloudy.
Floating Solids: Choose the number which best describes the amount of floating solids in the discharge where 1 is no solids and 10 the surface is covered in floating solids.
Suspended Solids: Choose the number which best describes the amount of suspended solids in the discharge where 1 is no solids and 10 is extremely muddy.
Oil Sheen: Is there an oil sheen in the stormwater discharge? Y or N.
STORMWATER INSPECTIONS FOR VSMP GENERAL PERMIT LAND DISTURBING ACTIVITIES
PROJECT:
MONITORING FOR THE WEEK BEGINNING:
RAINFALL:
Date of Rain I Amount (inches) I Initials
By this signature, I certify that this report is accurate
and complete to the best of my knowledge:
(Signature of Delegated Authority)
EROSION AND SEDIMENT CONTROL FACILITIES INSPECTED: (Inspections shall be conducted according to Part II1`2 of the Permit. However, if the discharges of stormwater from
construction activities are to surface waters identified as impaired, inspections shall be conducted according to Part 24d)
Facility Identification Date and Time of Inspection Operating Properly (Y/N) Description of inspection observations
OBSERVATION OF RUNOFF AT STORMWATER DISCHARGE OUTFALLS: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from
construction activities are to surface waters identified as impaired, inspections shall be conducted according to Part 1134d.)
Stormwater
Discharge
Outfall
Identification
Date
Clarity
Floating
Solids
Suspended
Solids
Oil
Sheen
Other obvious
indicators of
stormwater
pollution
(list and describe)
Visible
sediment
leaving the
site?
(Y/N)
If yes, describe actions
taken to prevent future
releases
(may need to attach
additional information)
Describe measures taken to
clean up sediment outside
of disturbed limits (may
need to attach additional
information)
Clarity: Choose the number which best describes the clarity of the discharge where 1 is clear and 10 is very cloudy.
Floating Solids: Choose the number which best describes the amount of floating solids in the discharge where 1 is no solids and 10 the surface is covered in floating solids.
Suspended Solids: Choose the number which best describes the amount of suspended solids in the discharge where 1 is no solids and 10 is extremely muddy.
Oil Sheen: Is there an oil sheen in the stormwater discharge? Y or N.
STORMWATER INSPECTIONS FOR VSMP GENERAL PERMIT LAND DISTURBING ACTIVITIES
PROJECT:
MONITORING FOR THE WEEK BEGINNING:
RAINFALL:
Date of Rain I Amount (inches) Initials
By this signature, I certify that this report is accurate
and complete to the best of my knowledge:
(Signature of Delegated Authority)
EROSION AND SEDIMENT CONTROL FACILITIES INSPECTED: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from
construction activities are to surface waters identified as impaired, inspections shall be conducted according to Part 164d.)
Facility Identification I Date and Time of Inspection I Operating Properly (Y/N) I Description of inspection observations
OBSERVATION OF RUNOFF AT STORMWATER DISCHARGE OUTFALLS: (Inspections shall be conducted according to Part IIF2 of the Permit. However, if the discharges of stormwater from
construction activities are to surface waters identified as impaired, inspections shall be conducted according to Part I134d.)
Stormwater
Discharge
Outfall
Identification
Date
Clarity
Floating
Solids
Suspended
Solids
Oil
Sheen
Other obvious
indicators of
stormwater
pollution
(list and describe)
Visible
sediment
leaving the
site?
(Y/N)
If yes, describe actions
taken to prevent future
releases
(may need to attach
additional information)
Describe measures taken to
clean up sediment outside
of disturbed limits (may
need to attach additional
information)
Clarity: Choose the number which best describes the clarity of the discharge where 1 is clear and 10 is very cloudy.
Floating Solids: Choose the number which best describes the amount of floating solids in the discharge where 1 is no solids and 10 the surface is covered in floating solids.
Suspended Solids: Choose the number which best describes the amount of suspended solids in the discharge where 1 is no solids and 10 is extremely muddy.
Oil Sheen: Is there an oil sheen in the stormwater discharge? Y or N.
CORRECTIVE ACTIONS
Documentation of any corrective actions taken must be noted and retained with the
SWPPP as required by the General VPDES Permit for Discharges of Stormwater
from Construction Activities. The operator shall implement corrective actions
according to Part II G of the Permit.
CORRECTIVE ACTION LOG
Corrective Action Description of Corrective Action
Date
Responsible Party
Responsible Party
Responsible Party
Responsible Party
'7 certify under penalty of law that 1 have read and understand
this document in accordance with the General VPDES Permit
for Discharges of Stormwater from Construction Activities. I am
aware that there are significant penalties for submitting false
information, including the possibility of fine and imprisonment for
knowing violations."
Operator or Delegated Authority Signature
SWPPP Amendment, Modification and Update Log
Documentation of SWPPP amendment, modification, or update must be noted and
retained with the SWPPP as required by the General VPDES Permit for Discharges
of Stormwater from Construction Activities. The operator shall record these
actions according to Part II B of the Permit.
SWPPP Amendment, Modification and Update Log
Date I Description of Amendment, Modification, or Update
Responsible Party
Responsible Party
Responsible Party
Responsible Party
"I certify under penalty of law that 1 have read and understand
this document in accordance with the General VPDES Permit
for Discharges of Stormwater from Construction Activities. I am
aware that there are significant penalties for submitting false
information, including the possibility of fine and imprisonment for
knowing violations. "
I Operator or Delegated Authority Signature