HomeMy WebLinkAboutWPO202100027 VSMP - SWPPP 2021-04-29�h�os.arrJ COUNTY OF ALBEMARLE
Department of Community Development
tt 401 McIntire Road, North Wing
Charlottesville, Virginia 22902-45%
r Tel. (434) 296-5832 • Fax (434) 972-4126
Stormwater Pollution Prevention Plan (SWPPP)
Project Name:
Address:
For Construction Activities At:
695 Moores Creek Lane
Charlottesville, VA 22902
Prepared by:
Name: Hazen and Sawyer
Prepared for:
Name: Rivanna Water and Sewer
SWPPP Preparation Date: 4/2912021
(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
VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY FOR OFFICE USE ONLY
GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM ID Number:
CONSTRUCTION ACTIVITIES (VAR10) Technical Criteria: 11110 IIC ❑
REGISTRATION STATEMENT 2019
NEW ISSUANCE Al RE -ISSUANCE ❑
MODIFICATION WITH ACREAGE INCREASE ❑
Existing Permit Coverage Number (if applicable,
Section I. Operator/Permittee Information.
MODIFICATION WITHOUT ACREAGE INCREASE 71
A. Construction Activity Operator (Permittee). The person or entity that is applying for permit coverage and will have
operational control over construction activities to ensure compliance with the general permit. A person with
signatory authority for this operator must sign the certification in Section VI. (per Part III. K. of the VAR10 Permit).
Construction Activity
Operator Name: Rivanna Water and Sewer Authority
Contact person:
Address: Water Resources Program
City, State, Zip Code
Phone Number:
Primary Email: sschillerCa)rivanna.org
CC Email: msantowassonhazenandsawyer.com
B. Billing Information (leave blank if same as the Operator identified in Section I. A. above). This entity will receive
Annual Permit Maintenance and Permit Modification Fee invoices (if applicable).
Name:
Contact Person:
Address:
City, State Zip Code:
Phone Number:
Primary Email:
CC Email:
C. May we transmit correspondence electronically? You must choose YES and include a valid email in order to pay by
credit card and to receive your permit coverage approval letter via email:
YES ® NO ❑
Rev 04/2019 PAGE 1 1 7
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019
Section II. Construction Activity Location Information. Project site information.
A. Include a site map showing the location of the existing or proposed land -disturbing activities, the limits of land
disturbance, construction entrances and all water bodies receiving stormwater discharges from the site.
B. Construction Activity Name: MCAWRRF Demolition of the In -Plant Clarifiers and Lime Silo
Address: 695 Moores Creek Lane
City and/or County and Zip Code: Charlottesville, VA 22902
Latitude and Longitude
(6-digit, decimal degrees format): 38.0171,-78.4583
C. Construction Activity Entrance Location
(description, street address and/or
latitude/longitude in decimal degrees): 38.0171,-78.4583
Section III. Offsite Support Activity Location Information. List all offsite support activities to be included under this
permit registration. Enter additional areas on a separate page. Offsite areas not included on this registration may need
to obtain coverage under a separate VPDES permit.
A. Offsite Activity Name:
Address:
City and/or County and Zip Code:
Latitude and Longitude
(6-digit, decimal degrees format):
B. Offsite Activity Entrance Location
(description, street address and/or
latitude/longitude in decimal degrees):
Section IV. Site Information.
A. Acreage totals for all land -disturbing activities to be included under this
permit coverage. Report to the nearest one -hundredth of an acre.
Total land area of development (including the entire
area to be disturbed as approved in the Stormwater
1.32 ac
Management Plan):
Primary estimated area to be disturbed (portions with
Erosion and Sediment Control Plan approval only):
Offsite estimated area to be disturbed (if applicable):
C. Property Owner Status:
D. Nature of the Construction Activity Description (i.e.
commercial, industrial, residential, agricultural,
environmental):
E. Municipal Separate Storm Sewer System (MS4)
name (if discharging to a MS4): n/a
B. Estimated Project Dates
(M M/D D/YYYY)
Start date:
08/01/2021
Completion date:
02/01/2022
FEDERAL ❑ STATE ❑ PUBLIC ❑ PRIVATE 91
Rev 04/2019 PAGE 2 17
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019
F. Is this construction activity part of a common plan of development or sale? YES ❑ NO 91
G. 6" Order Hydrologic Unit Code (HUC) and Receiving Water Name(s). Attach a separate list if needed.
HUC RECEIVING WATERBODY(S)
020802 James
Section V. Other Information.
A. A stormwater pollution prevention plan (SWPPP) must be prepared in accordance with the requirements of the
General VPDES Permit for Discharges of Stormwater from Construction Activities prior to submitting the Registration
Statement. By signing the Registration Statement, the operator is certifying that the SWPPP has been prepared.
B. Has an Erosion and Sediment Control Plan been submitted to the VESCP Authority for review? YES ❑ NO Al
Erosion and Sediment Control Plan Approval Date (for estimated area to be disturbed).:
C. Has land disturbance has commenced? YES ❑ NO 91
D. If this project is using approved Annual Standards and Specifications (AS&S), attach the completed AS&S Entity
Form. AS&S Entity Name (if different from the Operator identified in Section II. A.):
SEE THE FOLLOWING PAGE FOR SIGNATURE
AND CERTIFICATION REQUIREMENTS AND INFORMATION
Rev 04/2019 PAGE 3 17
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019
Section VI. Certification. A person representing the operator as identified in Section I. A. and meeting the requirements
of 9VAC25-880-70. Part III. K must physically sign this certification. A typed signature is not acceptable. Please note that
operator is defined in 9VAC25-870-10 as follows:
"Operator" means the owner or operator of any facility or activity subject to the Act and this chapter. In the context of stormwater
associated with a large or small construction activity, operator means any person associated with a construction project that meets
either of the following two criteria: (i) the person has direct operational control over construction plans and specifications, including
the ability to make modifications to those plans and specifications or (Y) 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). In the context of stormwater discharges from
Municipal Separate Storm Sewer Systems (MS4s), operator means the operator of the regulated MS4 system.
9VAC25-880-70. Part III. K. Signatory Requirements. Registration Statement. All Registration Statements shall be signed as follows:
a. For a corporation: by a responsible corporate officer. For the purpose of this chapter, a responsible corporate officer
means: (i) a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or
any other person who performs similar policy -making or decision -making functions far the corporation; or (d) 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: (1) 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.
Certification: N 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 (signed in ink):
Date:
5�o7'T
Section VII. Submittal Instructions. Submit this form to the Virginia Stormwater Management Program (VSMP)
Authority. If the locality is the VSMP Authority, please send your Registration Statement submittal directly to the
locality; do NOT send this form to DEQ. A list of local VSMP Authorities is available here: VSMP Authorities.
If DEQ is the VSMP Authority, please send to:
Department of Environmental Quality
Office of Stormwater Management Suite 1400
PO Box 1105
Richmond VA 23218
constructiongo@dea.virRinia.gov
If the locality is the VSMP Authority, please send to:
Locai vsmr
Water Resources Program
401 McIntire Road
Charlottesville, VA 22902
434-296-5816 Ext: 3410
Rev 04/2019 PAGE 4 17
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 INSTRUCTIONS
PLEASE DO NOT PRINT OR SUBMIT
This Registration Statement is for coverage under the General VPDES Permit for Discharges of Stormwater from Construction Activities. The
following permit actions are covered by this form: new issuance, re -issuance, modification with an increase in acreage and plan modifications that
do not result in an increase in acreage.
Choose NEW ISSUANCE if this Registration Statement submittal is to obtain a new permit coverage, RE -ISSUANCE to renew an active, expiring
permit coverage or MODIFICATION to modify an active permit coverage When modifying permit coverage, indicate if the modification is increasing
the amount of acreage previous covered (MODIFICATION WITH ACREAGE INCREASE) or changing the site design with no increase in acreage
(MODIFICATION WITHOUT ACREAGE INCREASE).
Existing Permit Coverage Number. Provide the permit number for a modification or reissuance (i.e. VAR10####).
Section I. Operator/Permittee Information.
A. Construction Activity Operator (Permittee). The person or entity that is applying for permit coverage and will have operational control over
construction activities to ensure compliance with the general permit. For companies, use the complete, active, legal entity name as registered with
a state corporation commission. Entities that are considered operators commonly consist of the property owner, developer of a project (the party
with control of project plans and specifications), or general contractor (the party with day-to-day operational control of the activities at the project
site that are necessary to ensure compliance with the general permit). If an individual person is named as the operator, that person (Ora
representative of) must sign the certification in Section VI. An operator can be one of the following:
9VAC25-870-10. Definitions.
"Operator" means the owner or operator of any facility or activity subject to the Act and this chapter. In the context of stormwater associated with a
large or small construction activity, operator means any person associated with a construction project that meets either of the following two
criteria: (i) the person has direct operational control over construction plans and specifications, including the ability to make modifications to those
plans and specifications or (d) 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). In the context
of stormwater discharges from Municipal Separate Storm Sewer Systems (MS4s), operator means the operator of the regulated M54 system.
"Owner" means the Commonwealth or any of its political subdivisions including, but not limited to, sanitation district commissions and authorities,
and any public or private institution, corporation, association, firm or company organized or existing under the laws of this or any other state or
country, or any officer or agency of the United States, or any person or group of persons acting individually or as a group that owns, operates,
charters, rents, or otherwise exercises control over or is responsible for any actual or potential discharge of sewage, industrial wastes, or other
wastes or pollutants to state waters, or any facility or operation that has the capability to alter the physical, chemical, or biological properties of
state waters in contravention of § 62.1-44.5 of the Code of Virginia, the Act and this chapter.
"Person" means any individual, corporation, partnership, association, state, municipality, commission, or political subdivision of a state,
governmental body, including a federal, state, or local entity as applicable, any interstate body or any other legal entity.
B. Billing information. If the person or entity responsible for billing/invoicing is different from the operator, please complete this section. If they
are the same, leave this section blank.
C. May we transmit correspondence electronically? If you choose YES to this question and provide an email address in Section I. A., all
correspondence, forms, invoices and notifications will be transmitted by email to the operator. This will also allow the operator to pay by credit
card and receive permit coverage approval letters immediately upon approval.
Section II. Construction Activity Location Information. Location information related to the project site.
A. A site map indicating the location of the existing or proposed land -disturbing activities, the limits of land disturbance, construction entrances
and all water bodies receiving stormwater discharges from the site must be included with the submittal of this form. Aerial imagery maps or
topographic maps showing the required items are acceptable. Plan sheet sized site maps are not required. Please consult your Virginia
Stormwater Management Program (VSMP) authority if you have additional questions regarding site map requirements.
B. Provide a descriptive project name (it is helpful to use the same naming convention as listed on the Stormwater plans), 911 street address (if
available), city/county of the construction activity, 6-digit latitude and longitude in decimal degrees format for the centroid, main construction
entrance or start and end points for linear projects (i.e. 37.1234N/-77.1234W).
C. Construction Activity Entrance Location. Provide an address or decimal degrees coordinates and a description of the main construction entrance
where the permit coverage letter will be posted.
Rev 04/2019 PAGE 5 17
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 INSTRUCTIONS
PLEASE DO NOT PRINT OR SUBMIT
Section III. Offsite Support Activity Location 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.
If requesting permit coverage for offsite activities, please complete this section. List additional offsite areas to be included under this permit
coverage on a separate page. Offsite areas not included on this registration will need to obtain coverage under a separate VPDES permit.
A. Offsite activity location information. Provide a descriptive offsite project name, 911 street address (if available) and city/county of all off -site
support activities. Provide the 6-digit latitude and longitude in decimal degrees (i.e. 37.1234N, 77.1234W). Please note that off -site activities not
covered under this permit may require separate permit coverage.
B. Offsite activity entrance location. Provide an address or decimal degrees coordinates and a description of the main construction entrance.
Section IV. Site Information
A. Acreage totals for all land -disturbing activities, on- and off -site, to be included under this permit. Acreages are to be reported to the nearest
one -hundredth acre (two decimal places; i.e. 1.15 acres). Provide the total acreage of the primary development site as approved on the
Stormwater Management Plans and the primary on -site estimated acreage to be disturbed by the construction activity as approved under the
Erosion and Sediment Control Plans. The off -site estimated area to be disturbed is the sum of the disturbed acreages for all off -site support
activities to be covered under this general permit. Do not include the off -site acreage totals in the primary, on -site total and estimated disturbed
acreage totals. Permit fees are calculated based on your disturbed acreage total for all on- and off -site areas being disturbed under this permit
coverage (the sum of all on -site and off -site disturbed acreages).
B. Estimated Project Dates. Provide the estimated project start date and completion date in Month/Day/Year or MM/DD/YYYY format (i.e.
07/30/2019).
C. Property owner status. The status of the construction activity property owner. Any property not owned by a government entity or agency (i.e.
federal, state or local governments) is PRIVATE.
D. Nature of the construction activity description. Choose the designation that best describes the post -construction use of this project (you may
choose more than one). (i.e. Residential, Commercial, Industrial, Agricultural, Environmental, Educational, Oil and Gas, Utility, Transportation,
Institutional, etc.). Describe the project (i.e. Commercial —one new office building and associated parking and utilities; Transportation —Roads,
sidewalks and utilities; Agricultural —3 Poultry Houses, etc.).
E. Municipal Separate Storm Sewer System (MS4) name(s) if discharging to a MS4. If stormwater is discharged through a MS4 (either partially or
completely), provide the name of the MS4(s) that will be receiving water from this construction activity. The MS4 name is typically the town, city,
county, institute or federal facility where the construction activity is located.
F. This construction activity is part of a common plan of development or sale. "Common plan of development or sale" means a contiguous area
where separate and distinct construction activities may be taking place at different times on different schedules per 9VAC25-870-50. Definitions.
Le. a subdivision, commercial development, business park, etc.
G. 6'h Order Hydrologic Unit Code (HUC) and associated Receiving Water Name(s). Provide all 6'h order HUCs and receiving waters for the site and
offsite areas that could potentially receive stormwater runoff discharging from this activity. The HUC can be either a 12-digit number (i.e.
0208010101) or 2-letter, 2-number code (i.e. JL52). Include additional HUCs or receiving waters on a separate page. You may utilize DEQ's web -
based GIS application, VEGIS, to obtain this information.
• VEGIS application link: DEQ's VEGIS Mapping Application
• Instructions for utilizing DEQ's VEGIS application link: CGP-GIS HUC Instructions
Rev 04/2019 PAGE 6 17
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 INSTRUCTIONS
PLEASE DO NOT PRINT OR SUBMIT
Section V. Other Information.
A. A stormwater pollution prevention plan (SWPPP) must be prepared prior to submitting the Registration Statement per 9VAC25-880. See
9VAC25-880-70. Part II. of the General Permit for the SWPPP requirements.
B. If the Erosion and Sediment Control Plan for the estimated area to be disturbed listed in Section IV. A. has been submitted to the Virginia Erosion
and Sediment Control Program (VESCP) Authority for review and plan approval, choose YES. If you are submitting this application to reissue an
existing permit coverage, please provide the date that the VESC Authority approved the Erosion and Sediment Control Plan for the estimated area
to be disturbed.
C. If land disturbance has commenced, choose YES. "Land disturbance" or "land -disturbing activity" means a man-made change to the land surface
that may result in soil erosion or has the potential to change its runoff characteristics, including construction activity such as the clearing, grading,
excavating, or filling of land per §62.1-44.15:24. Definitions.
D. If this project is using approved Annual Standards and Specifications (AS&S), attach the completed AS&S Entity Form.
If the AS&S Entity is different from the operator identified in Section I. A., list the AS&S Entity Name. The AS&S entity is the entity or agency that
holds the approved annual standards & specification.
• AS&S Entity Form link: Annual Standards and Specifications Entity Information Form
Section VI. Certification.
A properly authorized individual associated with the operator identified in Section I. A. of the Registration Statement is responsible for certifying
and signing the Registration Statement. A person must physically sign the certification, a typed signature is unacceptable. 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 per 9VAC25-880-70 Part III. K. 1.:
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 responsibilityfor the overall operations of a principal geographic unit of the agency.
Section VIL Submittal Instructions.
Submit this form to the VSMP Authority that has jurisdiction for your construction activity. The VSMP Authority maybe either DEQ or your locality
depending on the location and type of project. If your project is under the jurisdiction of a Local VSMP Authority, please contact the locality for
additional submittal instructions. A blank area is provided for the Local VSMP Authority to include their mailing address.
Who is the VSMP Authority for my oraiect7 DEQ or the locality7
• DEQ: DEQ is the VSMP Authority and administers permit coverage for land -disturbing activities that are:
➢ within a locality that is not a VSMP Authority;
➢ owned by the State or Federal government; or
➢ utilizing approved Annual Standards and Specifications.
• The Locality: The local government (locality) is the VSMP Authority and administers permit coverage for all other projects not covered by DEQ
as listed above. For these projects, please submit permit forms directly to the Local VSMP Authority. A list of Local VSMP Authorities is
available on DEQ's website here: Local VSMP Authority List.
http://www.deg.virginia.gov/Programs/Water/Stormwate rMa nage me nt/VSM PPermits/ConstructionGeneralPermit.a spx
Rev 04/2019 PAGE 7 17
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.)
The Rivanna Water & Sewer Authority is proposing the demolition of two in -plant clarifiers, a lime silo, conditioning
tank, and other associated structurestyard piping. The area will be returned to existing grade with a grass surface.
A stretch of concrete sidewalk and stairs that will be demolished during construction will be returned to it's existing
alignment. The project will result in approximately 1.32 ac of disturbance. In addition to these land disturbing
activities, there will be approximately 24000 SF (0.55 ac) of 2" Mill and Overlay of existing pavement expected to
need refurbishing after completion of excavation activities.
Construction will begin by rerouting yard piping unrelated to clarifiers to avoid conflict during excavation activities.
A 10' excavation support system will then be constructed to allow necessary excavation in the demolition of
structures. Associated yard piping will be removed and capped at the limits of disturbance. Stormwater inlets and
sidewalks will be returned to existing locations and elevations before the site is returned to existing grade.
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Section 4. Erosion and Sediment Control Plan.
(Provide a reduced, 11x17 copy of the latest Erosion and Sediment Control Plan. Do not reference only.)
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
REV
9VAC25-840-40. MINIMUM STANDARDS.
A VESCP MUST BE CONSISTENT WITH THE FOLLOWING CRITERIA,
TECHNIQUES AND METHODS:
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.
2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCK PILES 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.
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.
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.
5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN
STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER
INSTALLATION.
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.
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.
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.
9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE
OR OTHER PROTECTION SHALL BE PROVIDED.
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.
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.
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.
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.
14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS
PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE
MET.
15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED
IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED.
16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE
WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE
CRITERIA:
a. NO MORE THAN 300 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
PROJECT
ENGINEER:
DESIGNED BY:
I9ICL TA011:l'fi
CHECKED BY:
IF THIS BAR DOES NOT
MEASURE 1"THEN DRAWING
ISSUED FOR DATE gy IS NOT TO FULL SCALE
THIS CHAPTER.
f. APPLICABLE SAFETY REQUIREMENTS SHALL BE COMPLIED WITH
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.
18. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL
BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER
THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE
AUTHORIZED BY THE VESCP AUTHORITY. TRAPPED SEDIMENT AND THE
DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY
MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER
EROSION AND SEDIMENTATION.
19. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT
SITES SHALL BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND
DAMAGE DUE TO INCREASES IN VOLUME, VELOCITY AND PEAK FLOW RATE OF
STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF 24-HOUR
DURATION IN ACCORDANCE WITH THE FOLLOWING STANDARDS AND
CRITERIA. STREAM RESTORATION AND RELOCATION PROJECTS THAT
INCORPORATE NATURAL CHANNEL DESIGN CONCEPTS ARE NOT MAN-MADE
CHANNELS AND SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND
VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS:
a. CONCENTRATED STORMWATER RUNOFF LEAVING A DEVELOPMENT SITE
SHALL BE DISCHARGED DIRECTLY INTO AN ADEQUATE NATURAL OR
MAN-MADE RECEIVING CHANNEL, PIPE OR STORM SEWER SYSTEM. FOR
THOSE SITES WHERE RUNOFF IS DISCHARGED INTO A PIPE OR PIPE SYSTEM,
DOWNSTREAM STABILITY ANALYSES AT THE OUTFALL OF THE PIPE OR PIPE
SYSTEM SHALL BE PERFORMED.
b. ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE VERIFIED IN THE
FOLLOWING MANNER:
(1) THE APPLICANT SHALL DEMONSTRATE THAT THE TOTAL DRAINAGE AREA
TO THE POINT OF ANALYSIS WITHIN THE CHANNEL IS ONE HUNDRED TIMES
GREATER THAN THE CONTRIBUTING DRAINAGE AREA OF THE PROJECT IN
QUESTION; OR
(2) (A) NATURAL CHANNELS SHALL BE ANALYZED BY THE USE OF A
TWO-YEAR STORM TO VERIFY THAT STORMWATER WILL NOT OVERTOP
CHANNEL BANKS NOR CAUSE EROSION OF CHANNEL BED OR BANKS.
(b) ALL PREVIOUSLY CONSTRUCTED MAN-MADE CHANNELS SHALL BE
ANALYZED BY THE USE OF A TEN-YEAR STORM TO VERIFY THAT STORMWATER
WILL NOT OVERTOP ITS BANKS AND BY THE USE OF A TWO-YEAR STORM TO
DEMONSTRATE THAT STORMWATER WILL NOT CAUSE EROSION OF CHANNEL
BED OR BANKS; AND
(c) PIPES AND STORM SEWER SYSTEMS SHALL BE ANALYZED BY THE USE OF
A TEN-YEAR STORM TO VERIFY THAT STORMWATER WILL BE CONTAINED
WITHIN THE PIPE OR SYSTEM.
C. IF EXISTING NATURAL RECEIVING CHANNELS OR PREVIOUSLY
CONSTRUCTED MAN-MADE CHANNELS OR PIPES ARE NOT ADEQUATE, THE
APPLICANT SHALL:
(1) IMPROVE THE CHANNELS TO A CONDITION WHERE A TEN-YEAR STORM
WILL NOT OVERTOP THE BANKS AND A TWO-YEAR STORM WILL NOT CAUSE
EROSION TO THE CHANNEL, THE BED, OR THE BANKS; OR
(2) IMPROVE THE PIPE OR PIPE SYSTEM TO A CONDITION WHERE THE
TEN-YEAR STORM IS CONTAINED WITHIN THE APPURTENANCES;
(3) DEVELOP A SITE DESIGN THAT WILL NOT CAUSE THE PRE -DEVELOPMENT
PEAK RUNOFF RATE FROM A TWO-YEAR STORM TO INCREASE WHEN RUNOFF
OUTFALLS INTO A NATURAL CHANNEL OR WILL NOT CAUSE THE
PRE -DEVELOPMENT PEAK RUNOFF RATE FROM A TEN-YEAR STORM TO
INCREASE WHEN RUNOFF OUTFALLS INTO A MAN-MADE CHANNEL; OR
(4) PROVIDE A COMBINATION OF CHANNEL IMPROVEMENT, STORMWATER
DETENTION OR OTHER MEASURES WHICH IS SATISFACTORY TO THE VESCP
AUTHORITY TO PREVENT DOWNSTREAM EROSION.
d. THE APPLICANT SHALL PROVIDE EVIDENCE OF PERMISSION TO MAKE
THE IMPROVEMENTS.
e. ALL HYDROLOGIC ANALYSES SHALL BE BASED ON THE EXISTING
WATERSHED CHARACTERISTICS AND THE ULTIMATE DEVELOPMENT
CONDITION OF THE SUBJECT PROJECT.
f. IF THE APPLICANT CHOOSES AN OPTION THAT INCLUDES STORMWATER
DETENTION, HE SHALL OBTAIN APPROVAL FROM THE VESCP OF A PLAN FOR
MAINTENANCE OF THE DETENTION FACILITIES. THE PLAN SHALL SET FORTH
THE MAINTENANCE REQUIREMENTS OF THE FACILITY AND THE PERSON
RESPONSIBLE FOR PERFORMING THE MAINTENANCE.
g. OUTFALL FROM A DETENTION FACILITY SHALL BE DISCHARGED TO A
RECEIVING CHANNEL, AND ENERGY DISSIPATORS SHALL BE PLACED AT THE
OUTFALL OF ALL DETENTION FACILITIES AS NECESSARY TO PROVIDE A
STABILIZED TRANSITION FROM THE FACILITY TO THE RECEIVING CHANNEL.
h. ALL ON -SITE CHANNELS MUST BE VERIFIED TO BE ADEQUATE.
i. INCREASED VOLUMES OF SHEET FLOWS THAT MAY CAUSE EROSION OR
SEDIMENTATION ON ADJACENT PROPERTY SHALL BE DIVERTED TO A STABLE
OUTLET, ADEQUATE CHANNEL, PIPE OR PIPE SYSTEM, OR TO A DETENTION
FACILITY.
j. IN APPLYING THESE STORMWATER MANAGEMENT CRITERIA, INDIVIDUAL
LOTS OR PARCELS IN A RESIDENTIAL, COMMERCIAL OR INDUSTRIAL
DEVELOPMENT SHALL NOT BE CONSIDERED TO BE SEPARATE DEVELOPMENT
PROJECTS. INSTEAD, THE DEVELOPMENT, AS A WHOLE, SHALL BE
CONSIDERED TO BE A SINGLE DEVELOPMENT PROJECT. HYDROLOGIC
PARAMETERS THAT REFLECT THE ULTIMATE DEVELOPMENT CONDITION SHALL
BE USED IN ALL ENGINEERING CALCULATIONS.
I:IBM-raw�
A. MARCH
PRELIMINARY DESIGN
A. MARCH DO NOT USED FOR
B. EDWARDS I CONSTRUCTION
0 1/2" 1"
k. ALL MEASURES USED TO PROTECT PROPERTIES AND WATERWAYS SHALL
BE EMPLOYED IN A MANNER WHICH MINIMIZES IMPACTS ON THE PHYSICAL,
CHEMICAL AND BIOLOGICAL INTEGRITY OF RIVERS, STREAMS AND OTHER
WATERS OF THE STATE.
I. ANY PLAN APPROVED PRIOR TO JULY 1, 2014, THAT PROVIDES FOR
STORMWATER MANAGEMENT THAT ADDRESSES ANY FLOW RATE CAPACITY
AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS
SHALL SATISFY THE FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR
NATURAL OR MAN-MADE CHANNELS IF THE PRACTICES ARE DESIGNED TO (I)
DETAIN THE WATER QUALITY VOLUME AND TO RELEASE IT OVER 48 HOURS;
(II) DETAIN AND RELEASE OVER A 24-HOUR PERIOD THE EXPECTED RAINFALL
RESULTING FROM THE ONE YEAR, 24-HOUR STORM; AND (III) REDUCE THE
ALLOWABLE PEAK FLOW RATE RESULTING FROM THE 1.5, 2, AND 10-YEAR,
24-HOUR STORMS TO A LEVEL THAT IS LESS THAN OR EQUAL TO THE PEAK
FLOW RATE FROM THE SITE ASSUMING IT WAS IN A GOOD FORESTED
CONDITION, ACHIEVED THROUGH MULTIPLICATION OF THE FORESTED PEAK
FLOW RATE BY A REDUCTION FACTOR THAT IS EQUAL TO THE RUNOFF
VOLUME FROM THE SITE WHEN IT WAS IN A GOOD FORESTED CONDITION
DIVIDED BY THE RUNOFF VOLUME FROM THE SITE IN ITS PROPOSED
CONDITION, AND SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND
VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS AS
DEFINED IN ANY REGULATIONS PROMULGATED PURSUANT TO § 62.1-44.15:54
OR 62.1-44.15:65 OF THE ACT.
M. FOR PLANS APPROVED ON AND AFTER JULY 1, 2014, THE FLOW RATE
CAPACITY AND VELOCITY REQUIREMENTS OF § 62.1-44.15:52 A OF THE ACT
AND THIS SUBSECTION SHALL BE SATISFIED BY COMPLIANCE WITH WATER
QUANTITY REQUIREMENTS IN THE STORMWATER MANAGEMENT ACT
(§ 62.1-44.15:24 ET SEQ. OF THE CODE OF VIRGINIA) AND ATTENDANT
REGULATIONS, UNLESS SUCH LAND -DISTURBING ACTIVITIES ARE IN
ACCORDANCE WITH 9VAC25-870-48 OF THE VIRGINIA STORMWATER
MANAGEMENT PROGRAM (VSMP) REGULATIONS.
n. COMPLIANCE WITH THE WATER QUANTITY MINIMUM STANDARDS SET
OUT IN 9VAC25-870-66 OF THE VIRGINIA STORMWATER MANAGEMENT
PROGRAM (VSMP) REGULATIONS SHALL BE DEEMED TO SATISFY THE
REQUIREMENTS OF SUBDIVISION 19 OF THIS SUBSECTION.
STATUTORY AUTHORITY
§ 62.1-44.15:52 OF THE CODE OF VIRGINIA.
HISTORICAL NOTES
FORMER 4VAC50-30-40, DERIVED FROM VR625-02-00 § 4; EFF SEPTEMBER 13,
1990; AMENDED, VIRGINIA REGISTER VOLUME 11, ISSUE 11, EFF. MARCH 22,
1995; VOLUME 29, ISSUE 4, EFF. NOVEMBER 21, 2012; AMENDED AND
RENUMBERED, VIRGINIA REGISTER VOLUME 30, ISSUE 2, EFF. OCTOBER 23,
2013.
OVERALL EROSION & SEDIMENTATION CONTROL NOTES
1. THE CONTRACTOR IS ENCOURAGED TO PHASE CONSTRUCTION TO MINIMIZE EXPOSED SOIL AREAS
THROUGHOUT THE PROJECT.
2. ALL ONSITE ACTIVITIES SHALL BE MANAGED TO INSURE NO ADVERSE IMPACTS TO WATER QUALITY
OCCUR DURING AND AFTER CONSTRUCTION. THE ACTIVITIES, AS DESCRIBED IN SPECIFICATION
SECTION 31 25 00, AND OTHERS, REQUIRE OVERSIGHT THROUGHOUT THE CONSTRUCTION AND
DEVELOPMENT PROCESS TO ASSURE THAT ALL WATER QUALITY STANDARDS ARE PROTECTED. SEE
SPECIFICATION SECTION 3125 00 FOR FURTHER REQUIREMENTS.
3. THE CONTRACTOR SHALL FURNISH AND INSTALL ALL NECESSARY EROSION CONTROL MEASURES
WHETHER OR NOT SHOWN ON THE PLANS TO PROTECT ADJACENT CREEKS, RIVERS, ROADWAYS, ETC.
FROM SILTATION AND EROSION.
4. EACH EROSION AND SEDIMENTATION CONTROL MEASURE SHALL BE INSPECTED AT LEAST ONCE
EVERY FOUR BUSINESS DAYS OR 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.
5. ALL PIPE WORK SHALL BE INSTALLED IN ACCORDANCE WITH STANDARD CONSTRUCTION TECHNIQUES.
ONLY THE LENGTH OF TRENCH IN WHICH PIPE CAN BE INSTALLED IN ONE DAYS TIME SHALL BE OPEN
AT ANY TIME, WITH SPOIL MATERIAL PLACED ON THE UPHILL SIDE OF THE TRENCH. PIPING SHALL BE
CAPPED AT THE END OF EACH WORK DAY TO PREVENT SEDIMENT FROM ENTERING PIPE. TRENCH
SHALL BE BACKFILLED AT END OF EACH WORKDAY AND DISTURBED AREA SEEDED WITH TEMPORARY
SEEDING MEASURES, AS APPROPRIATE.
6. ALL EROSION CONTROL MEASURES SHALL REMAIN IN PLACE UNTIL CONSTRUCTION IS COMPLETE,
PERMANENT VEGETATION IS ESTABLISHED ON ALL DISTURBED AREAS, AND APPROVAL BY THE
ENGINEER IS GIVEN. AREAS WHERE EROSION AND SEDIMENTATION CONTROL MEASURES ARE
REMOVED SHALL BE REGRADED AND SEEDED TO MATCH ORIGINAL SITE CONDITIONS.
EROSION & SEDIMENTATION CONTROL CONSTRUCTION SEQUENCING
1. NO CONSTRUCTION OR LAND DISTURBANCE ACTIVITIES SHALL BEGIN UNTIL TEMPORARY
SEDIMENT AND EROSION CONTROL MEASURES HAVE BEEN INSTALLED. CONTRACTOR SHALL
INSTALL SILT FENCE AS SHOWN ON THE DRAWING FOR TEMPORARY PERIMETER EROSION
CONTROL.
2. ONCE THE SITE HAS BEEN CLEARED AND GRUBBED, AND ALL SILT FENCE HAS BEEN INSTALLED,
ALL APPROPRIATE UTILITY REROUTING SHALL COMMENCE. ONCE ALL PERMANENT UTILITIES HAVE
BEEN ROUTED, THE EXCAVATION SUPPORT SYSTEM MAY BE FURBISHED. ALL MAJOR EXCAVATION
AND DEMOLITION ACTIVITIES MAY OCCUR AFTER SUPPORT SYSTEM HAS BEEN VERIFIED BY THE
ENGINEER.
3. TEMPORARY SEEDING MEASURES SHALL BE EMPLOYED THROUGHOUT THE DURATION OF
CONSTRUCTION ACTIVITIES ON ANY AREA WHICH WILL REMAIN UNDISTURBED FOR MORE THAN 7
WORKING DAYS OR 14 CALENDAR DAYS, WHICHEVER IS SHORTER. ALL SLOPES STEEPER THAN
3H:1 V SHALL BE PLANTED OR OTHERWISE PROVIDED WITH TEMPORARY OR PERMANENT GROUND
COVER, DEVICES, OR STRUCTURES SUFFICIENT TO RESTRAIN EROSION WITHIN 7 CALENDAR DAYS.
ALL OTHER SLOPES OF 3HA V OR FLATTER, EXCEPT THOSE GREATER THAN 50 FT IN LENGTH,
SHALL BE PROVIDED WITH TEMPORARY OR PERMANENT GROUND COVER, DEVICES, OR OTHER
STRUCTURES SUFFICIENT TO RESTRAIN EROSION WITHIN 14 CALENDAR DAYS.
4. PERMANENT SEEDING SHALL BE INSTALLED, IN THE PROPER PLANTING SEASON, FOR ALL AREAS
REACHING FINAL GRADE WHICH WILL NOT BE DISTURBED AGAIN. IF PLANTING SEASON IS NOT
APPROPRIATE FOR PERMANENT SEEDING CONTRACTOR SHALL RE -SEED AREA WITH PERMANENT
SEEDING WHEN SEASON ALLOWS.
5. UPON COMPLETION OF FINAL GRADING, PERMANENT STRUCTURAL OR VEGETATIVE STABILIZATION
SHALL BE ESTABLISHED.
6. ALL EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE MAINTAINED THROUGHOUT
THE DURATION OF CONSTRUCTION ACTIVITIES AND THE SITE HAS BEEN PERMANENTLY
STABILIZED WITH STRUCTURAL AND/OR PERMANENT VEGETATIVE MEASURES.
7. CONTRACTOR SHALL PERFORM SITE INSPECTION AND MAINTENANCE ONCE EVERY5 BUSINESS
DAYS AND WITHIN 48 HOURS AFTER MEASURABLE STORM EVENT.
8. ONCE PERMANENT STABILIZATION HAS OCCURRED, TEMPORARY SEDIMENT CONTROL MEASURES
MAY BE REMOVED UPON APPROVAL FROM THE ENGINEER AND ALBEMARLE COUNTY. ANY AREAS
DISTURBED BY THE REMOVAL OF EROSION CONTROL MEASURES SHALL BE RETURNED TO THE
ORIGINAL, OR BETTER, CONDITION BEFORE SEEDED, MULCHED, AND FERTILIZED.
EROSION AND SEDIMENT CONTROL MEASURES:
TEMPORARY MEASURES:
• CONSTRUCTION ENTRANCE PER STD 3.02
• SILT FENCE PER STD 3.05
• GRAVEL DROP INLET SEDIMENT FILTER PER STD 3.07-2
• CURB INLET SEDIMENT FILTER PER STD 3.07-6
• TEMPORARY SEEDING PER STD 3.31
PERMANENT MEASURES:
• SOIL STABILIZATION BLANKETS PER STD 3.36
• PERMANENT STABILIZATION: AREAS OF THE SITE THAT WILL NOT BE PAVED
WILL BE SEEDED AND MULCHED ACCORDING TO THE VIRGINIA EROSION AND
SEDIMENT CONTROL HANDBOOK REQUIREMENTS PER STD 3.32
EROSION AND SEDIMENT CONTROL MAINTENANCE NOTES:
IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE
CHECKED AFTER EACH RAINFALL OR WEEKLY, WHICHEVER IS MORE FREQUENT,
AND SHOULD BE CLEANED AND REPAIRED ACCORDING TO THE FOLLOWING
SCHEDULE:
1. EROSION AND SEDIMENT CONTROLS WILL BE CHECKED REGULARLY FOR
UNDERMINING OR DETERIORATION AND BUILDUP OR CLOGGING WITH
SEDIMENT. CORRECTIVE ACTION SHALL BE TAKEN IMMEDIATELY.
2. FREQUENT INSPECTIONS AND CLEANING OF MUD AND DEBRIS FOUND
OUTSIDE OF THE LIMITS OF DISTURBANCE IS REQUIRED, ALONG WITH ANY
OTHER REMEDIES REQUIRED BY THE COUNTY.
3. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD
STAND OF GRASS IS MAINTAINED. AREAS SHALL BE RESEEDED AS NEEDED.
TEMPORARY STABILIZATION WILL BE USED AS REQUIRED BY THE COUNTY.
RIVANNA WATER & SEWER AUTHORITY DATE:
HazeCHARLOTTESVILLE, VIRGINA HAZENNO.:
CIVIL CONTRACT NO.:
HAZEN AND SAWYER MOORES CREEK ADVANCED WATER RESOURCE EROSION AND SEDIMENT CONTROL NOTES DRAWING
NUMBER:
4011 WESTCHASE BOULEVARD, SUITE 500 RECOVERY FACILITY
RALEIGH, NORTH CAROLINA27607 IN -PLANT CLARIFIER AND LIME SILO DEMOLTION
LICENSE NO.: C-0381
APRIL 2021
31430-006
1
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PROJECT
ENGINEER: B. PORTER RIVANNA WATER & SEWER AUTHORITY DATE: APRIL 2021
DESIGNED BY: A. MARCH PRELIMINARY DESIGN CHARLOTTESVILLE, VIRGINA SITE HAZEN NO.: 31430-006
DRAWN BY: A. MARCH DO NOT USED FOR a -en CIVIL CONTRACT NO.: 1
CHECKED BY: B. EDWARDS CONSTRUCTION MOORES CREEK ADVANCED WATER RESOURCE DRAWING
HAZEN AND SAWYER EROSION AND SEDIMENT CONTROL PLAN NUMBER:
IF THIS BAR DOES NOT 0 1/2" ill 4011 WESTCHASE BOULEVARD, SUITE 500 RECOVERY FACILITY
MEASURE 1" THEN DRAWING RALEIGH, NORTH CAROLINA 27607
REV ISSUED FOR DATE BY IS NOT TO FULL SCALE LICENSE NO.: C-0381 IN -PLANT CLARIFIER AND LIME SILO DEMOLTION C12
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SILT FENCE SILT FENCE
NOTE:
1. EXTRA STRENGTH SILT FENCE MATERIAL (AS APPROVED BY
ENGINEER) WITH 6'-0" POST SPACING DOES NOT REQUIRE MESH
SUPPORT FENCE.
2. SILT FENCE MATERIAL SHALL BE WIRED DIRECTLY TO POST.
C-31-0400
ROADWAY
GRATE INLET
FILTER BAG BETWEEN
FRAME AND GRATE
CATCH BASIN INLET
NOTES:
1. IN PAVED AREAS, USE FILTER BAG FOR INLET PROTECTION (NO MESH, BOX STONE REQUIRED).
2. FILTER BAG SHALL BE MANUFACTURED FROM A WOVEN POLYPROPYLENE GEOTEXTILE AND
SEWN BY A DOUBLE NEEDLE MACHINE USING A HIGH STRENGTH NYLON THREAD.
3. BAG SHALL BE SILTSACK® BY ACF ENVIRONMENTAL, OR EQUAL, AS APPROVED BY THE
ENGINEER.
MAINTENANCE REQUIREMENTS:
1. INSPECT GRATE AND BAG ON A WEEKLY BASIS AND AFTER EACH RAINFALL EVENT PRODUCING }
INCH OR MORE OF RAIN. ANY DEBRIS OR SEDIMENT VISIBLE SHALL BE REMOVED IMMEDIATELY.
2. DAMAGE TO THE BAG SHALL BE REPAIRED IMMEDIATELY.
3. WHEN THE RESTRAINT CORD IS NO LONGER VISIBLE, THE BAG IS FULL AND SHOULD BE EMPTIED.
4. USE 1" DIAMETER REBAR TO SLIDE THROUGH THE LIFTING LOOPS/POCKETS ON EACH SIDE OF THE
BAG TO FACILITATE LIFTING.
5. REMOVE SEDIMENT FROM BAG AND DISPOSE OF OFF -SITE IN ACCORDANCE WITH ALL STATE AND
LOCAL REGULATIONS.
BELOW GRADE INLET PROTECTION
C-31-0418
PROJECT
ENGINEER: B. PORTER
DESIGNED BY: A. MARCH
DRAWN BY: A. MARCH
CHECKED BY: B. EDWARDS
IF THIS BAR DOES NOT 0 1/2" 1"
MEASURE 1" THEN DRAWING
ISSUED FOR DATE BY IS NOT TO FULL SCALE
50'-0"MIN
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SILT FENCE*
PLAN
EXISTING
ROADWAY
iorzm
NOTES:
NOTES:
1.
*SILT FENCE SHOULD BE INSTALLED TO ENSURE
0
v
CONSTRUCTION ENTRANCE IS USED.
2.
IF CONSTRUCTION ON THE SITES ARE SUCH THAT
THE MUD IS NOT REMOVED BY THE VEHICLE
TRAVELING OVER THE STONE, THEN THE TIRES OF
THE VEHICLE MUST BE WASHED BEFORE
ENTERING THE PUBLIC ROAD OR THE LENGTH OF
THE CONSTRUCTION ENTRANCE EXTENDED.
3.
MAINTENANCE: ADD ADDITIONAL STONE AND
"FLUFF" TOP DRESSING WITH 2" STONE.
TYPICAL
TREATMENT-
2
NEW CONSTRUCTION
CROSS SECTION
SEE N.C. DENR EROSION AND SEDIMENT CONTROL
PLANNING and DESIGN MANUAL FOR CONDITIONS
WHERE PRACTICE APPLIES; PLANNING
CONSIDERATION & DESIGN CRITERIA.
GRAVEL ENTRANCE/EXIT
C-31-0490
CURB OPENING
WITHOUT GRATE MANHOLE
OVERFLOW GAP
;p
AGGREGATE ••
POUCH r r. _ ... _ `► :���=
CURB FILTER
GUTTERGATOR ®BY
ACF ENVIRONMENTAL
OR APPROVED EQUAL
1. INSTALL CURB FILTERS AT ALL INLETS WITHOUT GRATES TO KEEP SILT, SEDIMENT AND
CONSTRUCTION DEBRIS OUT OF THE STORM SYSTEM
2. THE CURB FILTER SHALL BE DANDY CURB AS MANUFACTURED BY DANDY PRODUCTS INC., OR
EQUAL. SUBMIT SHOP A SHOP DRAWING FOR THE CURB FILTERS.
3. THE CURB FILTER SHALL FORM OF A CYLINDRICAL TUBE PLACED IN FRONT OF AND EXTENDING
BEYOND THE INLET OPENING ON BOTH SIDES.
4. THE CURB FILTER SHALL HAVE A POUCH ON THE STREET SIDE OF THE UNIT FOR STONE
AGGREGATE TO HOLD THE FILTER IN PLACE.
5. THE CURB FILTER SHALL BE CONSTRUCTED OF A HIGH VISIBILITY ORANGE MONOFILAMENT
FABRIC.
6. FILL POUCH WITH #57 STONE AGGREGATE TO A LEVEL (AT LEAST HALF -FULL) THAT WILL KEEP
UNIT IN PLACE DURING A RAIN EVENT AND CREATE A SEAL BETWEEN THE CURB FILTER AND THE
SURFACE OF THE STREET.
7. CENTER THE UNIT AGAINST CURB OR MEDIAN INLET OPENING SO THAT THE CURB SIDE OF THE
UNIT CREATES A SEAL WITH THE CURB OR MEDIAN BARRIER AND INLET STRUCTURE. THERE WILL
BE APPROXIMATELY TWELVE (12) INCHES OF THE INLET PROTECTION UNIT OVERHANGING ON
EACH SIDE OF THE OPENING.
8. THE CONTRACTOR SHALL REMOVE ALL ACCUMULATED SEDIMENT AND DEBRIS FROM SURFACE
AND VICINITY OF UNIT AFTER EACH RAIN EVENT.
CURB INLET PROTECTION
C-31-0414
PRELIMINARY DESIGN Hazen
DO NOT USED FOR
CONSTRUCTION HAZEN AND SAWYER
4011 WESTCHASE BOULEVARD, SUITE 500
RALEIGH, NORTH CAROLINA 27607
LICENSE NO.: C-0381
SLOPE INSTALLATION
FILL SLOPE SECTION
SOIL STABILIZATION MATS SHOULD
BE INSTALLED VERTICALLY
DOWNSLOPE FOR BEST RESULTS.
TOE
MAINTAIN SLOPE ANGLE
SLOPE LINING
(WET SLOPE
11:77_\IbI��IQ'�
POLYPROPELYENE
NON -WOVEN
(NEEDLE PUNCHED)
GEOTEXTILE FILTER
CLOTH (BEHIND
TREATMENT - 2) \
SOIL
4TEP
i
BOTTOM OF CUT SLOPE
Q
O�
5`P F�E?0
SLOPE SURFACE
SHALL BE SMOOTH
AND FREE OF
ROCKS, LUMPS OF
DIRT, GRASS AND
STICKS. MAT SHALL
BE PLACED FLAT
ON SURFACE FOR
PROPER SOIL
CONTACT.
DIRT SHALL BE
TAMPERED PRIOR
TO LAYING TOP
LAP OVER
BERM
TRENCH INTO BERM AND
PROGRESS DOWNSLOPE
SLOPE LINING TOP OF
CUT SLOPE
(DRY SLOPE
BOTTOM OF FILL
TREATMENT - 2
BOTTOM OF CUT SLOPE
- OR SHOULDER
BREAK POINT
21
SOURCE: VDOT ROAD AND BRIDGE STANDARDS PLATE: 3.36-5
DETAIL F 1
SCALE: N.T.S. CD1
RIVANNA WATER & SEWER AUTHORITY
CHARLOTTESVILLE, VIRGINA
MOORES CREEK ADVANCED WATER RESOURCE
RECOVERY FACILITY
IN -PLANT CLARIFIER AND LIME SILO DEMOLTION
DETAILS
CIVIL
EROSION AND SEDIMENT CONTROL DETAILS
DATE: APRIL 2021
HAZEN NO.: 31430-006
CONTRACT NO.: 1
DRAWING
NUMBER:
CD1
Section 5. Stormwater Management Plan
(Provide a reduced 11x17 copy of the latest stormwater management plan. Do not reference only.)
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
GENERAL NOTES:
1. SITE INFORMATION HAS BEEN TAKEN FROM HAZEN AND SAWYER RECORD
DRAWINGS FROM PROJECT #31037-039 TITLED "MOORES CREEK WASTEWATER
TREATMENT PLANT NUTRIENT REMOVAL IMPROVEMENTS", DATED SEPTEMBER,
2014.
2. HORIZONTAL CONTROL IS REFERENCED TO NAD 83, VIRGINIA SOUTH ZONE,
AND VERTICAL CONTROL IS REFERENCED TO NAVD 88.
3. FLOOD PLAIN ELEVATIONS FROM FEDERAL EMERGENCY MANAGEMENT
AGENCY (FEMA) FLOOD INSURANCE RATE MAP FIRM PANEL 0289D
MAP NUMBER 51003CO289D DATED FEBRUARY 04, 2005
THE PROJECT IS LOCATED IN ZONE X, AREA OF MINIMAL FLOOD HAZARD.
4. CONTRACTOR SHALL VERIFY FIELD CONDITIONS BEFORE COMMENCEMENT
OF ANY CONSTRUCTION ACTIVITIES. CONTRACTOR SHALL VERIFY EXISTING
ELEVATIONS AND DIMENSIONS WHERE NEW WORK WILL MATCH EXISTING.
DISCREPANCIES SHALL BE BROUGHT TO THE ATTENTION OF THE ENGINEER
FOR RESOLUTION PRIOR TO THE COMMENCEMENT OF WORK.
5. CONTRACTOR SHALL OBTAIN ALL THE NECESSARY PERMITS FROM THE
APPROPRIATE AUTHORITIES, DEPARTMENTS, AND/OR AGENCIES HAVING
JURISDICTION PRIOR TO COMMENCING WORK.
6. CONTRACTOR SHALL TAKE CARE TO AVOID DAMAGE TO EXISTING
PAVEMENT, TREES, VEGETATION, STRUCTURES, AND UTILITIES THAT ARE
NOT INDICATED TO BE DEMOLISHED OR REMOVED. ANY DAMAGE TO
EXISTING PAVEMENT, TREES, VEGETATION, STRUCTURES, AND UTILITIES
NOT INDICATED TO BE DEMOLISHED OR REMOVED SHALL BE REPAIRED AT
THE CONTRACTOR'S EXPENSE.
7. UTILITIES HAVE BEEN PLOTTED FROM AVAILABLE RECORD INFORMATION. IT
IS THE CONTRACTOR'S RESPONSIBILITY TO VERIFY THEIR EXACT LOCATION
AND TO AVOID DAMAGE TO THEM. THE CONTRACTOR SHALL CONTACT
VIRGINIA 811 AT PHONE NUMBER 811 OR 1-800-552-7001 TO REQUEST
UNDERGROUND UTILITY LOCATION MARK -OUT AT LEAST THREE (3)
WORKING DAYS BUT NO MORE THAN TEN (10) WORKING DAYS PRIOR TO
BEGINNING EXCAVATION, INCLUDING SOIL DRILLING. THE CONTRACTOR
SHALL ALSO CONTACT AND REQUEST UTILITY LOCATION MARK -OUT FROM
BURIED UTILITY OWNERS WITH UTILITIES ON THE PROJECT SITE THAT ARE
NOT PARTICIPANTS OF VIRGINIA 811.
8. WHERE PROPOSED WORK IS IN THE VICINITY OF UTILITY POLES, SUCH THAT
SUPPORT OF THE POLE(S) WILL BE REQUIRED, THE CONTRACTOR SHALL BE
RESPONSIBLE FOR NOTIFYING THE UTILITY OF THE WORK. IT WILL BE THE
RESPONSIBILITY OF THE CONTRACTOR TO COORDINATE WITH THE UTILITY
FOR SUPPORT OF THE POLE.
9. WHERE OVERHEAD POWER LINES ARE PRESENT, CONTRACTOR MUST
CONTACT THE UTILITY PRIOR TO CONSTRUCTION ACTIVITIES TO DETERMINE
THE MINIMUM REQUIRED EQUIPMENT CLEARANCE (MEC) DISTANCE BASED
UPON LINE STRENGTH.
10. DURING EXCAVATION AND PLACEMENT OF UTILITIES THE CONTRACTOR
SHALL COMPLY WITH ALL APPLICABLE SAFETY REGULATIONS AND SHALL
SUBMIT TO THE ENGINEER FOR REVIEW SHEET PILING, SHORING AND/OR
BRACING DESIGNS AS MAY BE NECESSARY TO COMPLY WITH THESE
REGULATIONS.
11. CONTRACTOR SHALL BE SOLELY RESPONSIBLE FOR DESIGN AND
INSTALLATION OF ALL EXCAVATION SUPPORT AT LOCATIONS AS MAY BE
SUGGESTED ON CONTRACT DRAWINGS OR FOR THEIR OWN CONVENIENCE.
CONTRACTOR SHALL SUBMIT ALL NECESSARY CALCULATIONS, DRAWINGS,
ETC. PREPARED BY A PROFESSIONAL ENGINEER REGISTERED IN THE
COMMONWEALTH OF VIRGINIA AS MAY BE NECESSARY FOR REVIEW BY THE
ENGINEER PRIOR TO INSTALLATION. REQUIREMENTS FOR EXCAVATION
SUPPORT DESIGN MAY BE FOUND IN SPECIFICATION SECTION 02200
EARTHWORK, SECTION 3.03.
12. GROUNDWATER FROM ALL DEWATERING OPERATIONS SHALL BE
DISCHARGED TO AN ENVIRONMENTALLY ACCEPTABLE LOCATION IN
ACCORDANCE WITH THE CONTRACT DOCUMENTS, OR AS DIRECTED BY THE
ENGINEER.
13. ALL TEMPORARY FACILITIES ARE SUBJECT TO THE SAME HEALTH AND
SAFETY REQUIREMENTS AS PERMANENT FACILITIES, AS SPECIFIED IN THE
CONTRACT DOCUMENTS AND HEALTH SAFETY PLAN (HASP).
14. THE CONTRACTOR SHALL REMOVE AND DISPOSE OF ALL DEBRIS
GENERATED DURING THE PROJECT OFF SITE AT A PROPERLY PERMITTED
DISPOSAL FACILITY.
NEW
STRUCTURES/SURFACES
DEMO EXISTING
® E
�rrr-
a 7
0
REV I ISSUED FOR I DATE I BY
BUILDING/STRUCTURE
CONCRETE CURB
AND GUTTER
CONCRETE PAD/SIDEWALK
_1'/17H71�I�Ce7
PROJECT
ENGINEER:
DESIGNED BY:
91:7_ TATA
CHECKED BY:
IF THIS BAR DOES NOT
MEASURE 1" THEN DRAWING
IS NOT TO FULL SCALE
LEGEND
SITE INFORMATION
PROJECT DESCRIPTION:
THE RIVANNA WATER AND SEWER AUTHORITY IS PROPOSING DEMOLITION OF THE
TWO IN -PLANT CLAIFIERS AND LIME SILO AND OTHER RELATED STRUCTURES. ALL
YARD PIPING ASSOCIATED WITH THE CLARIFIERS WILL BE DEMOLISHED AND
CAPPED WHEN NECESSARY. THERE WILL BE REROUTING OF EXISTING YARD PIPING
WHERE APPROPRIATE. WHERE SHOWN, EXISTING SIDEWALK WILL BE REPLACED,
AND ASPHALT WILL BE MILLED AND OVERLAID WITH SURFACE COARSE. AN
EXCAVATION SUPPORT SYSTEM OF 10' WILL BE DESIGNED BY THE CONTRACTOR
FOR MAJOR DEMOLITION ACTIVITIES. THIS PROJECT WILL RESULT IN
APPROXIMATELY 57500 SF OF LAND DISTURBANCE.
EXISTING SITE CONDITIONS:
THE PROJECT IS AT THE MOORES CREEK ADVANCED WATER RESOURCE RECOVERY
FACILITY (MCAWRRF) LOCATED AT 695 MOORES CREEK LANE, CHARLOTTESVILLE VA
22902. THE PROPERTY IS LOCATED IN UNINCORPORATED ALBEMARLE COUNTY. THE
PROPOSED DISTURBANCE WILL BE LOCATED ADJACENT TO THE PRIMARY
DIGESTERS AND THE SOLIDS HANDLING BUILDING. TOPOGRAPHY IN THESE THREE
AREAS ARE GENTLY SLOPED ALONG THE EXISTING INFRASTRUCTURE, RANGING IN
ELEVATIONS FROM 325 FT TO 355 FT.
THE NEAREST BODY OF WATER IS MOORES CREEK, WHICH IS APPROXIMATELY 500
FT DOWNSTREAM FROM THE NEAREST GROUND DISTURBING ACTIVITY. NO LAND
DISTURBANCE WILL TAKE PLACE IN THE FEMA FLOODPLAIN OR 100' MOORES CREEK
STREAM BUFFER. MOORES CREEK ULTIMATELY DISCHARGES TO THE RIVANNA
RIVER. ACCORDING TO THE 2016 TMDL REPORT, MOORES CREEK STREAM SEGMENT
IS SEVERELY IMPACTED FOR ITS AQUATIC LIFE USE. SEDIMENT WAS SELECTED AS
THE MOST PROBABLE STRESSOR. THE PROJECT IS LOCATED IN ZONE X, AREA OF
MINIMAL FLOOD HAZARD.
THE COMBINED MCAWRRF PARCELS ARE BOUND TO THE SOUTH BY THE 1-64
CORRIDOR. TO THE WEST AND NORTH ARE MULTIPLE OPEN PARCELS, ZONED
RURAL AND LIGHT INDUSTRIAL.
OFF -SITE AREAS:
CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING SELECT BACKFILL FROM AN
OFFSITE LOCATION. ANY VPDES PERMIT REQUIRED IN SUPPORT OF OFFSITE
ACTIVITIES SHALL BE OBTAINED BY THE CONTRACTOR
SOILS:
SOIL TYPES FOUND AT THE MCAWRRF SITE WERE IDENTIFIED BASED ON
INFORMATION OBTAINED FROM THE UNITED STATES DEPARTMENT OF
AGRICULTURE (USDA), NATURAL RESOURCE CONSERVATION SERVICE (NRCS). THE
PROJECTS LIMITS OF DISTURBANCE IS COMPOSED SOLELY OF RABUN CLAY LOAM,
15 TO 25 PERCENT SLOPES. RABUN CLAY LOAM IS IN HYDROLOGIC SOIL GROUP
(HSG) A. ADJACENT SOIL TYPES ARE SHOWN ON THE LEGEND BELOW AND ON C12
FOR BOUNDARY CLARIFICATION ONLY.
SOIL UNIT LEGEND
MAP UNIT
SYMBOL MAP UNIT NAME
HSG SITE AREA
71D
RABUN CLAY LOAM,
B
100%
15 TO 25% SLOPES
71C
RABUM CLAY LOAM,
B
0%
7 TO 15% SLOPES
83
COLVARD FINE SANDY LOAM,
A
0%
0 TO 2% SLOPES,
OCCASIONALLY FLOODED
23B
YADKIN CLAY LOAM,
B
0%
2 TO 7% SLOPES
23C
YADKIN CLAY LOAM,
B
0%
7 TO 15% SLOPES
12E
CATOCTIN SILT LOAM, 15 TO
B
0%
25% SLOPES, VERY STONY
NEW/OTHER
300 CONTOUR
YARDINLET
A. MARCH
A. MARCH
B. EDWARDS
0 1/2" 1"
EXCAVATION SUPPORT
SOIL TYPE BOUNDARY
MILL AND OVERLAY
PRELIMINARY DESIGN
DO NOT USED FOR
CONSTRUCTION
EXISTING
STORMWATER RUNOFF CONSIDERATIONS:
QUALITY
THE VIRGINIA RUNOFF REDUCTION METHOD (VRRM)
SPREADSHEET FOR RE -DEVELOPMENT WAS USED TO
DETERMINE THE NUTRIENT REDUCTION REQUIREMENTS.
BECAUSE OF THE REMOVAL OF IMPERVIOUS SURFACES, THE
PROPOSED PROJECT IS EXCEEDING THE PHOSPHORUS LOAD
REDUCTION BY 0.04 LBSNR.
THE PRE -DEVELOPMENT PEAK FLOWS FOR THE 2-YR AND
10-YR 24-HR STORMS FOR EACH DRAINAGE AREA (DA) ARE AS
FOLLOWS:
2-YR, 24-HR
10-YR, 24-HR
DA1
0.1 CFS
0.4 CFS
DA2
1.0 CFS
2.1 CFS
DA3
0.9 CFS
1.9 CFS
DA4
0.2 CFS
0.5 CFS
THE POST -DEVELOPMENT PEAK FLOWS FOR THE 2-YR AND
10-YR 24-H5 STORMS FOR EACH DRAINAGE AREA ARE AS
FOLLOWS:
2-YR, 24-HR
10-YR, 24-HR
DA1
0.1 CFS
0.4 CFS
DA2
0.6 CFS
1.5 CFS
DA3
0.7 CFS
1.6 CFS
DA4
0.2 CFS
0.5 CFS
UNDER PRE -DEVELOPMENT CONDITIONS, RUNOFF FROM THE
PROJECT AREA SHEET FLOWS DOWNHILL AWAY FROM THE
CLARIFIERS, DOWN A STEEP HILL AND INTO THE NEAREST
STORMWATER INLET. NO CHANGE IN OVERALL DRAINAGE
PATTERNS IS PROPOSED POST -DEVELOPMENT. EACH
DRAINAGE AREA EITHER EXPERIENCES NO CHANGE OR A
DECREASE IN PEAK FLOW. AT THE POINT OF OUTFALL THE
DRAINAGE AREA OF MOORES CREEK IS APPROCIAMTELY 35.1
SQUARE MILES. THERE WILL BE NO CHANGE IN PRE AND
POST RUNOFF CONDITIONS AS A RESULT OF THIS PROJECT
AS ALL EXISTING DRAINAGE PATTERNS WILL REMAIN. DUE TO
PROJECT DEMOTION, THERE WILL BE A DECREASE IN PEAK
FLOW FOR THE PROJECT'S AFFECTED DRAINAGE AREAS AND
AS SUCH NO IMPACT ON MOORES CREEK AS IT RELATES TO
EROSION OR FLOODING.
EROSION AND SEDIMENT CONTROL
IP
CONTOUR
FENCE
PROPERTY LINE
SF SF
EASEMENT
- LOD- LOD-
STORM DRAIN LINE
B/M
MANHOLE
YARDINLET
TS
POWER POLE
PS
DC
INLET PROTECTION
GRAVEL CONSTRUCTION
ENTRANCE
SILT FENCE
LIMITS OF DISTURBANCE
SOIL STABILIZATION BLANKETS
TEMPORARY SEEDING
PERMANENT SEEDING
DUST CONTROL
Hazen
HAZEN AND SAWYER
4011 WESTCHASE BOULEVARD, SUITE 500
RALEIGH, NORTH CAROLINA 27607
LICENSE NO.: C-0381
SITE SEEDING SCHEDULE AND NOTES
APPLICATION RATES IN POUNDS/ACRE
SEED
PLANTING
STRAW
MIXTURE
SEASON
SEED
LIME*
FERTILIZER**
MULCH***
COMMENTS
PREFERED SEASONS:
P
FEB 15 APR 30
200
4000
1000
4000
SEPT 1 - SEPT 30
SEPT 1 - OCT 31
FEB 15 - MARCH 30
OVERSEED WITH TYPE P
TW
SEPT 1 - FEB 15
100
*
600
4000
SEED MIXTURE DURING
NEXT PLANTING SEASON
OVERSEED WITH TYPE P
TSP
FEB 16 - APR 30
100
*
600
4000
SEED MIXTURE DURING
NEXT PLANTING SEASON
OVERSEED WITH TYPE P
TSU
MAY 1 - AUG 31
50
*
600
4000
SEED MIXTURE DURING
NEXT PLANTING SEASON
ABBREVIATIONS
P - 190 LB/AC KENTUCKY 31 TALL FESCU�
5 LB/AC PERENNIAL RYEGRASS
5 LB/AC KENTUCKY BLUEGRASS
TW - 50 LB/AC ANNUAL RYEGRASS
50 LB/AC CEREAL (WINTER) RYE
TSP - 100 LB/AC ANNUAL RYEGRASS
TSU - 50 LB/AC GERMAN MILLET
SEED MIXTURES TO BE USED ON THE PROJECT FOR PERMANENT (P), TEMPORARY WINTER (TW), TEMPORARY
SPRING (TSP) AND TEMPORARY SUMMER (TSU) SHALL BE AS FOLLOWS (ACCEPTABLE SUBSTITUTES PER SECTION
6.24 OF THE NC EROSION AND SEDIMENTATION CONTROL PLANNING AND DESIGN MANUAL MUST BE APPROVED
BY ENGINEER)
SEEDBED PREPARATION NOTES:
1. SCARIFY 2" DEPTH OF SUBGRADE PRIOR TO PLACING TOPSOIL.
2. TOPSOIL SHALL BE SPREAD AT 4" INCH CONSOLIDATED DEPTH
3. APPLY SEED UNIFORMLY WITH A CYCLONE SEEDER, DROP -TYPE SPREADER, OF HYDROSEEDER ON A FIRM,
FRIABLE SEEDBED. IN FINE SOILS, SEEDS SHOULD BE DRILLED 1/4 - 1/2 INCH. IN COARSE, SANDY SOILS,
SEEDS SHALL BE PLANTED NO DEEPER THAN 3/4 INCH. COVER BROADCAST SEED BY LIGHTLY RAKING OR
CHAIN DRAGGING; THEN FIRM SURFACE WITH A ROLLER OR CULTIPACKER TO PROVIDE GOOD SEED
CONTACT.
4. ON CUT AND FILL SLOPES 2:1 OR STEEPER ADD 20 LBS/AC OF WEEPING LOVEGRASS TO THE P SEED MIXTURE
IN THE SPRING AND ADD 20 LBS/AC ANNUAL RYEGRASS IN FALL AND WINTER.
* LIME SHALL BE APPLIED AT A MINIMUM OF 2 TONS PER ACRE WITH 3 TONS PER ACRE IN CLAY SOILS.
APPLICATION RATES AND/OR CHEMICAL ANALYSIS SHALL BE CONFIRMED OR ESTABLISHED BY SOIL TEST.
TACK MULCH BY APPLYING AT 0.10 GAL/YDZ. RATE REQUIREMENTS FOR TEMPORARY SEEDING SHALL BE
BASED UPON A pH TEST AS SUCH:
<4.2 3 TONS/ACRE
4.2-5.2 2 TONS/ACRE
5.2-6.0 1 TON/ACRE
** FERTILIZER SHALL BE 10-20-10 MIX OR EQUIVALENT NUTRIENTS.
*** ALTERNATIVE METHODS OF MULCHING MAY BE UTILIZED. ALTERNATIVE METHODS SHALL CONFORM TO
REQUIREMENTS IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK.
TEMPORARY SEEDING:
1. LIMING: AN EVALUATION SHOULD BE CONDUCTED TO DETERMINE IF LIME IS NECESSARY FOR TEMPORARY SEEDING. SEE ABOVE
NOTES TO DETERMINE THE NEED AND APPLICATION OF LIME FOR TEMPORARY SEEDING.
2. FERTILIZER: SHALL BE APPLIED AT 600 LBS/AC OF 10-20-10 OR EQUIVALENT NUTRIENTS. LIME AND FERTILIZER SHALL BE
INCORPORATED INTO THE TOP 2 TO 4 INCHES OF THE SOIL.
3. SEEDING: SEEDING SHALL BE APPLIED WITH A BROADCAST SEEDER, DRILL, CULTIPACKER SEEDER OR HYDROSEEDER. SMALL
GRAINS SHALL BE PLANTED NO MORE THAN ONE INCH DEEP. GRASSES AND LEGUMES SHALL BE PLANTED WITH NO LESS THAN
1/4" SOIL COVER. FOR SEED SELECTION AND RATES SEE TABLE 3.31-13 (THIS SHEET).
4. MULCHING: SEEDING MADE IN FALL FOR WINTER COVER AND DURING HOT AND DRY SUMMER MONTHS SHALL BE MULCHED
ACCORDING TO MULCHING STD. & SPEC 3.35 (TABLE 3.35-A PROVIDED THIS SHEET), EXCEPT THAT HYDROMULCHES (FIBER
MULCH) WILL NOT BE CONSIDERED ADEQUATE. STRAW MULCH SHOULD BE USED DURING THESE PERIODS. TEMPORARY SEEDING
MADE UNDER FAVORABLE SOIL AND SITE CONDITIONS DURING OPTIMUM SPRING AND FALL SEEDING DATES MAY NOT REQUIRE
MULCH.
PERMANENT SEEDING:
1. LIMING & FERTILIZER: LIME AND FERTILIZER SHALL BE APPLIED PER SOIL TESTS. SOIL TEST MAY BE PREFORMED BY THE
COOPERATIVE EXTENSION SERVICE SOIL TESTING LABORATORY AT VPI&SU, OR BY A REPUTABLE COMMERCIAL LABORATORY.
INFORMATION CONCERNING THE STATE SOIL TESTING LABORATORY IS AVAILABLE FROM COUNTY EXTENSION AGENTS. IF SOIL
TESTS ARE NOT POSSIBLE, DUE TO UNUSUAL CONDITIONS, SEE THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK
SECTION 3.32 FOR LIMING AND FERTILIZER NEEDS.
2. SEEDING: SEEDING SHALL BE APPLIED WITH A BROADCAST SEEDER, DRILL, CULTIPACKER SEEDER, OR HYDROSEEDER ON A FIRM,
FRIABLE SEEDBED. SEED DEPTH SHOULD BE 1/4 TO 1/2 INCH. FOR SEED SELECTION AND RATES SEE TABLE 3.32-D (THIS SHEET).
3. MULCHING: ALL PERMANENT SEEDING SHALL BE MULCHED IMMEDIATELY UPON COMPLETION OF SEED APPLICATION. REFER TO
MULCHING, STD. & SPEC. 3.35 (TABLE 3.35-A PROVIDED THIS SHEET).
EOP
EDGE OF PAVEMENT
G
GAS
LOD
LIMITS OF DISTURBANCE
SS
SANITARY SEWER
OHE
OVERHEAD ELECTRIC
W
WATER
FOC
FIBER OPTIC CABLE
R
PROPERTY LINE
LP
LIGHT POLE
CENTER LINE
UGE
UNDERGROUND
ELECTRIC
PP
POWER POLE
RIVANNA WATER & SEWER AUTHORITY
CHARLOTTESVILLE, VIRGINA
MOORES CREEK ADVANCED WATER RESOURCE
RECOVERY FACILITY
IN -PLANT CLARIFIER AND LIME SILO DEMOLTION
SIGNATURE PANEL
NOTES
CIVIL
GENERAL NOTES AND LEGEND
DATE: APRIL 2021
HAZEN NO.: 31430-006
CONTRACT NO.:
1
DRAWING
NUMBER:
C01
Virginia Runoff Reduction Method Worl sheet
NOTES:
DEQ Virginia Runoff Reduction Method Re -Development Compliance Spreadsheet - Version 3.0
BMP Design Specifications List: 2013 Draft Stalls & Specs
Site Summary
Project Title: MCAW RRF IN -PLANT CIARFIER AND LIME SILO DEMOLITION
Date: 44308 Total Rainfall (in): 43
Total Disturbed Acreage: 1.32
Site Land Cover Summary
Pre-ReDevelooment Land Cover (acres)
A soils
!.Soils
CSoils
DSoils
Totals
%of Total
Forest/Open (acres)
0.00
0.00
0.00
0.00
0.00
0
Managed Turf (acres)
0.00
1.03
0.00
0.00
1.03
78
Impervious Cover (acres)
0.00
0.29
0.00
0.00
0.29
22
1.32
100
Post-ReDevelooment Land Cover lacres)
A soils
BSoils
CSoils
DSoils
Totals
%of Total
Forest/Open (acres)
0.00
0.00
0.00
0.00
0.00
0
Managed Turf s)
0.00
1.18
0.00
0.00
1.18
89
Impervious Cover (acres)
0.00
0.14
0.00
0.00
0.14
11
1.32
100
Site Tv and Land Cover Nutrient Loads
Final Post -Development
post-
Post
Adjusted Pre-
(Post-ReDevelopment
elopmImperint
Development
&New Impervious)
P
ReDevelopment
(New
ReDevelopment
Site Rv
0.28
0.28
--
0.36
Treatment Volume(111
1,339
1,339
--
1,748
TP Load (lb/yr)
0.84
0.84
--
1.10
Total TP Load Reduction Required (Ib/yr) -0.04 -0.04 0
Final Post -Development Load
(Post-ReDevelopment & New Impervious)
Pre.
ReDevelopment
TN Load (Ib/yr)
6.02
7.86
Site Compliance Summary
Maximum% Reduction Required Below 20%
pre- ReDevelopment Load
Total Runoff Volume Reduction (fts)
0
Total TP Load Reduction Achieved (lb/yr)
0.00
Total TN Load Reduction Achieved(lb/yr)
0.00
Remaining Post Development TP Load
(Ib/yr)
0.84
Remaining TP Load Reduction (Ib/yr)
Required
0.00
** TARGET TP REDUCTION EXCEEDED BY 0.04 LB/YEAR **
----------------------------------------------------------------------------------------------------
Drainage Area Summary
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)
0.23
0.49
0.41
0.05
0.00
m8
Impervious Cover (acres)
0.01
0.02
0.11
0.00
0.00
0.14
Total Area (acres)
0.24
0.51
0.52
0.05
0.00
1.32
Drainage Area Compliance Summary
D.A. A
D.A. B
D.A. C
D.A. D
D.A. E
Total
TP Load Reduced (Ib/yr)
0.00
0.00
0.00
0.00
0.00
0.00
TN Load Reduced (lb/yr)
1 0.00
1 0.00
1 0.00
0.00
0.00
age
------------------------------------------------------------------------------------------
Runoff Volume and CN Calculations
1-yearstorm 2-yearstorm 30-yearstorm
'arget Rainfall Event (in) 1 3.03 1i 3.66 5.54
Pre
Final Post -Development
Post-ReDevelopment TP
ReDevelopment
TP Load per acre
Load per acre
TP Load per acre
(lb/acre/yr)
(lb/acre/yr)
b acre r
0.83
0.64
0.64
Drainage Areas
RV&CN
Drainage Area
Drainage Area
Drainage Area
Drainage Area
Drainage Area
CN
62
62
69
61
0
RR (fta)
0
0
0
0
0
1-year return period
RV we RR(ws-in)
0.41
0.41
0.69
0.38
0.00
RV w RR(ws-in)
0.41
0.41
0.69
0.39
0.00
Cx adjusted
62
62
69
61
0
2-year return period
RV we RR(.,-In)0.69
0.69
1.05
0,65
0.00
RV w RR(ws-in)
0.69
0.69
1.05
0.65
0.00
ON adjusted
62
62
69
61
0
10-year return period
aRR(ws-in)
1J8
1.]8
2.36
1.J0
0.00
w RR(wsinl
RCN
1.]8
1.]8
2.36
1J0
0.00
adjusted
1 62
62
69
161
0
PLAN
SCALE: 1" = 50'
LEGEND
® IMPERVIOUS AREA (EXISTING)
IMPERVIOUS AREA (REMOVED)
OPEN SPACE
DIRECTION OF SURFACE FLOW
SCALE: 1" = 50'
PROJECT
ENGINEER: B. PORTER
PRELIMINARY DESIGN
DO NOT USED FOR
CONSTRUCTION
Haze
_
HAZEN AND SAWYER
4011 WESTCHASE BOULEVARD, SUITE 500
RALEIGH, NORTH CAROLINA 27607
LICENSE NO.: C-0381
RIVANNA WATER & SEWER AUTHORITY
CHARLOTTESVILLE, VIRGINA
SITE
CIVIL
STORMWATER CALCULATIONS
DATE:
DESIGNED BY: A. MARCH
HAZENNO.: 31430-006
DRAWN BY: A. MARCH
CONTRACT NO.: 1
MOORES CREEK ADVANCED WATER RESOURCE
RECOVERY FACILITY
IN -PLANT CLARIFIER AND LIME SILO DEMOLTION
CHECKED BY: B. EDWARDS
DRAWING
NUMBER:
C16
IF THIS BAR DOES NOT 0 1/2" 1.1
MEASURE 1" THEN DRAWING
IS NOT TO FULL SCALE
REV
ISSUED FOR
DATE
gY
PRE -DEVELOPMENT: DA-1
PRE -DEVELOPMENT: DA-2
a
v
REV
COVER DESCRIPTION
HSG
CN
Area
CN x Area
IMPERVIOUS
A
98
0.00
0.0
B
98
0.01
1.0
LAWN
A
39
0.00
0.0
B
61
0.23
14.0
TOTALS
0.2
15
COMPOSITE CN
63
TIME OF CONCENTRATION, tc (HOURS)
STORM FREQUENCY (YR)
RAINFALL (IN)
RUNOFF,Q
PEAK FLOW (CFS)
2 10
3.66
5.54
0.72
1.82
0.1
0.4
POST -DEVELOPMENT: DA-1
0.04
COVER DESCRIPTION
HSG
CN
Area
CN x Area
IMPERVIOUS
A
98
0.00
0.0
B
98
0.01
0.5
LAWN
A
39
0.00
0.0
B
61
0.24
14.6
TOTALS
0.2
15
COMPOSITE CN
62
TIME OF CONCENTRATION, t, (HOURS)
STORM FREQUENCY (YR)
RAINFALL (IN)
RUNOFF,Q
PEAK FLOW (CFS)
2 10
3.66
5.54
0.68
1.76
0.1
0.4
PRE -DEVELOPMENT: DA-3
0.04
COVER DESCRIPTION
HSG
CN
Area
CN x Area
IMPERVIOUS
A
98
0.00
0.0
B
98
0.41
40.2
LAWN
A
39
0.00
0.0
B
61
0.70
42.7
TOTALS
1.1
83
COMPOSITE CN
75
TIME OF CONCENTRATION, t. (HOURS)
STORM FREQUENCY (YR)
RAINFALL (IN)
RUNOFF. Q
PEAK FLOW (CFS)
2 10
3.66
5.54
1.39
2.86
0.9
1.9
POST -DEVELOPMENT: DA-3
M•
COVER DESCRIPTION
HSG
CN
Area
CN x Area
IMPERVIOUS
A
98
0.00
0.0
B
98
0.30
29.4
LAWN
A
39
0.00
0.0
B
61
0.81
49.4
TOTALS
1.1
79
COMPOSITE CN
71
TIME OF CONCENTRATION, tc (HOURS)
STORM FREQUENCY (YR)
RAINFALL (IN)
RUNOFF, Q
PEAK FLOW (CFS)
2 10
3.66
5.54
1.17
2.53
0.7
1.6
PROJECT
ENGINEER:
DESIGNED BY:
CHECKED BY:
IF THIS BAR DOES NOT
MEASURE 1" THEN DRAWING
ISSUED FOR DATE gY IS NOT TO FULL SCALE
COVER DESCRIPTION
HSG
CN
Area
CN x Area
IMPERVIOUS
A
98
0.00
0.0
B
98
0.32
31.4
LAWN
A
39
0.00
0.0
B
61
0.39
23.8
TOTALS
0.7
55
COMPOSITE CN
78
TIME OF CONCENTRATION, tc (HOURS)
STORM FREQUENCY (YR)
2 10
RAINFALL (IN)
3.66
5.54
RUNOFF, Q
1.60
3.14
PEAK FLOW (CFS)
1.0
2.1
POST -DEVELOPMENT: DA-2
0.04
COVER DESCRIPTION
HSG
CN
Area
CN x Area
IMPERVIOUS
A
98
0.00
0.0
B
98
0.17
16.7
LAWN
A
39
0.00
0.0
B
61
0.54
32.9
TOTALS
0.7
50
COMPOSITE CN
70
TIME OF CONCENTRATION, t. (HOURS)
STORM FREQUENCY (YR)
RAINFALL (IN)
RUNOFF,Q
PEAK FLOW (CFS)
2 10
3.66
5.54
1.10
2.43
0.6
1.5
PRE -DEVELOPMENT: DA-4
COVER DESCRIPTION
HSG
CN
Area
CN x Area
IMPERVIOUS
A
98
0.00
0.0
B
98
0.05
4.9
LAWN
A
39
0.00
0.0
B
61
0.41
25.0
TOTALS
0.5
30
COMPOSITE CN
65
TIME OF CONCENTRATION, tc (HOURS)
STORM FREQUENCY (YR)
RAINFALL (IN)
RUNOFF, Q
PEAK FLOW (CFS)
2 10
3.66
5.54
0.84
2.02
0.2
0.5
POST -DEVELOPMENT: DA-4
COVER DESCRIPTION
HSG
CN
Area
CN x Area
IMPERVIOUS
A
98
0.00
0.0
B
98
0.05
4.9
LAWN
A
39
0.00
0.0
B
61
0.41
25.0
TOTALS
0.5
30
COMPOSITE CN
65
TIME OF CONCENTRATION, tc (HOURS)
STORM FREQUENCY (YR)
RAINFALL (IN)
RUNOFF,Q
PEAK FLOW (CFS)
B. PORTER
A. MARCH
A. MARCH
B.EDWARDS
0 1/2" 1"
2 10
3.66
5.54
0.84
2.02
0.2
0.5
PRELIMINARY DESIGN
DO NOT USED FOR
CONSTRUCTION
i I•
1a Wil10
SCALE: 1" = 50'
RIVANNA WATER & SEWER AUTHORITY
Haze
CHARLOTTESVILLE, VIRGINA
HAZEN AND SAWYER MOORES CREEK ADVANCED WATER RESOURCE
4011 WESTCHASE BOULEVARD, SUITE 500 RECOVERY FACILITY
RALEIGH, NORTH CAROLINA27607 IN -PLANT CLARIFIER AND LIME SILO DEMOLTION
LICENSE NO.: C-0381
SITE
CIVIL
STORMWATER CALCULATIONS
LEGEND
IMPERVIOUS AREA (EXISTING)
IMPERVIOUS AREA (REMOVED)
OPEN SPACE
DIRECTION OF SURFACE FLOW
DATE: APRIL 2021
HAZEN NO.: 31430.006
CONTRACT NO.: 1
DRAWING
NUMBER:
C17
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 I Ix17 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
t
1'c- p'?,01
Ll
11%
L
SLUDGE
STORAGE
LOD
IP
MmLwasi
SOIL TYPE BOUNDARY,
SEE SOIL CHART, CO
CURB INLET PROTECTION
CONDITIONING
TANK STRUCTURE
(ABANDONED)
SILT FENCE, TYP.
DIGESTOR BUILDING
EXCAVATION SUPPORT SYSTEM
BY CONTRACTOR
IN -PLANT
CLARIFIER
ASPHALT PAVEMENT
I
r-
0
0
t
r-
0
0
I
BOILER FACILITY
LOD — LOD — LOD
STOCKPILEICONTRACTOR
LAYDOWN AREA
G . ENERATORS j �A
LIMITS OF DISTURBANCE
w
0
TERTIARY
FILTERS
SOIL STABILIZATION BLANKETS r_ GRAVEL CONSTRUCTION
0 ENTRANCE, TYP.
TS 1�
C-31-5ZOJ�
C
PS L
74 L
0, Lon LOD :qi I I I
DC Ir
0
0
SF
100 YEAR FLOODPLA SF SF - SF - SF SF SF SF
DROP INLET PROTECTION, TYP. (]O_1 (]O_1 GOl (101-00-1 0
'qj� \ C-31-0418
RE)Ps-
100'STREAM BUFFER - or - ---------- I SF--;; FSF SF
(10-1 — (10-1 no-1 no-1 no-1 no-1 no-i no-i nm nn IU%
IF Tr
400)m 11 U-0 I wi_
uj Nj
100YR
A4 A 1()oiR IVUTM
looR 4' 100VR
A4 A
4 700
A 4. A A
BACKWASH WASTE
FLOODWAY
CONCRETE 4 SOLIDS HANDLING RECLAIM BASIN
.4 . . - I
PLATFORM A BUILDING
A
L
Al'
4.
44 A 4
A'
A 4. A 4 A. A
A
A
0
0 IOOYR
83
ASPHALT PAVEMENT
E
61
+
x X _X_X_ X X
12 ftftftw
+ Xr%,C\ \
ftftft
x 'A
ps-15
83 Moro
X_
_7 X
PLAN 20 10 0 20'
SCALE: 1" = 20' SCALE: 1" = 20'
PROJECT
ENGINEER: B. PORTER RIVANNA WATER & SEWER AUTHORITY DATE: APRIL 2021
DESIGNED BY: A. MARCH PRELIMINARY DESIGN CHARLOTTESVILLE, VIRGINA SITE HAZEN NO.: 31430-006
DRAWN BY: A. MARCH DO NOT USED FOR a -en CIVIL CONTRACT NO.: 1
CHECKED BY: B. EDWARDS CONSTRUCTION MOORES CREEK ADVANCED WATER RESOURCE DRAWING
HAZEN AND SAWYER EROSION AND SEDIMENT CONTROL PLAN NUMBER:
IF THIS BAR DOES NOT 0 1/2" ill 4011 WESTCHASE BOULEVARD, SUITE 500 RECOVERY FACILITY
MEASURE 1" THEN DRAWING RALEIGH, NORTH CAROLINA 27607
REV ISSUED FOR DATE BY IS NOT TO FULL SCALE LICENSE NO.: C-0381 IN -PLANT CLARIFIER AND LIME SILO DEMOLTION C12
B. Sources of Pollutants, locations, and prevention practices
Pollutant, or Pollutant
Location on site
Prevention Practices,
Generating Activity
Control Measures
C. Sources of Pollutants, continued. Common activities and minimum control and prevention
ractices
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 da s of land clearing
Cover storm drain inlets and use drip
Paving operations
Roads and driveways
pans and absorbent/oil dry for all paving
machines to limit leaks and spills
Direct concrete wash water into a leak -
Concrete washout
Current location and detail shown
proof container or leak -proof settling
and cement waste
on plan
basin 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
Dewatenng operations
Dewatenng sites shown on plan
treated prior to discharge as shown on
plan.
Designated areas for material delivery
Material delivery and storage
Designated area shown on plan
and 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.
waste collection area will not receive a
substantial amount of runoff from upland
Solid waste disposal
Current designated container areas
areas and does not drain directly to a
on plan
waterway. Containers have lids covered
before periods of rain, or are in a covered
area. Scheduled collection to prevent
Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County
Pollutant, or Pollutant
Location on site
Prevention Practices,
Generating Activity
Control Measures
overfilling. MATERIALS NOT TO BE
BURIED ONSTTE
Convenient and well -maintained
portable sanitary facilities will be
Sanitary waste
Current locations shown on plan
provided, and 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
Wash Waters
Wash areas shown on plan
better control as specified on plan.
Minimize the discharge of pollutants
from equipment and vehicle washing
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.)
0
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,
Report all spills, leaks and discharges as follows,
(Provide detailed response and reporting practices according to 9VAC25-880-70, Part II, section AA.e.)
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.)
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)
CERTIFICATION
"I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in
accordance with a system designed to assure that qualified personnel properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for
gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and
complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine
and imprisonment for knowing violations."
Operator Name: Scott A. Schiller, PE
Company: Rivanna Water and Sewer Authority
Title: J HN EE2l
Signature:
Date:
T�
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, Scott Schiller (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 Moores Creek Advanced Water RRF 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
00MMONWEALTH 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 VIRGINIASTORMWATER MANAGEMENT
PROGRAM AND THE VIRGINIASTORMWATER 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;
b. The support activity is not a commercial operation, nor does it serve multiple unrelated
construction activities by different operators;
c. The support activity does not operate beyond the completion of the last construction activity it
supports;
d. The support activity is identified in the registration statement at the time of general permit
coverage;
e. Appropriate control measures are identified in a stormwater pollution prevention plan and
implemented to address the discharges from the support activity areas; and
f. All applicable state, federal, and local approvals are obtained for the support activity.
B. Limitations on coverage.
1. Post -construction discharges. This general permit does not authorize stormwater discharges that
originate from the site after construction activities have been completed and the site, including any
support activity sites covered under the general permit registration, has undergone final stabilization.
Post -construction industrial stormwater discharges may need to be covered by a separate VPDES
permit.
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.
General Permit No.: VAR10
Page 3 of 21
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 hydrantflushings;
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:
General Permit No.: VAR10
Page 4 of 21
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
SW PPP 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, that adequately:
(1) Controls the volume and velocity of stormwater runoff within the site to minimize soil erosion;
(2) Controls stormwater discharges, including peak flow rates and total stormwater volume, to
minimize erosion at outlets and to minimize downstream channel and stream bank erosion;
(3) Minimizes the amount of soil exposed during the construction activity;
(4) Minimizes the disturbance of steep slopes;
(5) Minimizes sediment discharges from the site in a manner that addresses (i) the amount,
frequency, intensity, and duration of precipitation; (ii) the nature of resulting stormwater
runoff; and (iii) soil characteristics, including the range of soil particle sizes present on the
site;
(6) Provides and maintains natural buffers around surface waters, directs stormwater to
vegetated areas to increase sediment removal, and maximizes stormwater infiltration, unless
infeasible;
(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.
b. Existing construction activities. Any operator that was authorized to discharge under the general
permit issued in 2009, and that intends to continue coverage under this general permit, shall
ensure compliance with the requirements of 9VAC25-870-93 through 9VAC25-870-99 of the
VSMP Regulation, including but not limited to the water quality and quantity requirements. The
SWPPP shall include a description of, and all necessary calculations supporting, all post -
construction stormwater management measures that will be installed prior to the completion of
the construction process to control pollutants in stormwater discharges after construction
operations have been completed. Structural measures should be placed on upland soils to the
degree possible. Such measures must be designed and installed in accordance with applicable
VESCP authority, VSMP authority, state, and federal requirements, and any necessary permits
must be obtained.
4. Pollution prevention plan. A pollution prevention plan that addresses potential pollutant -generating
activities that may reasonably be expected to affect the quality of stormwater discharges from the
construction activity, including any support activity. The pollution prevention plan shall:
a. Identify the potential pollutant -generating activities and the pollutant that is expected to be
exposed to stormwater;
b. Describe the location where the potential pollutant -generating activities will occur, or if identified
on the site plan, reference the site plan;
c. Identify all nonstormwater discharges, as authorized in Part I E of this general permit, that are or
will be commingled with stormwater discharges from the construction activity, including any
applicable support activity;
d. Identify the person responsible for implementing the pollution prevention practice or practices for
each pollutant -generating activity (if other than the person listed as the qualified personnel);
e. Describe the pollution prevention practices and procedures that will be implemented to:
(1) Prevent and respond to leaks, spills, and other releases including (i) procedures for
expeditiously stopping, containing, and cleaning up spills, leaks, and other 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 SW PPP.
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 SW PPP 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
III K, to sign inspection reports or modify the SWPPP.
8. SWPPP signature. The SWPPP shall be signed and dated in accordance with Part III K.
B. SWPPP amendments, modification, and updates.
1. The operator shall amend the SWPPP whenever there is a change in the design, construction,
operation, or maintenance that has a significant effect on the discharge of pollutants to surface waters
and that has not been previously addressed in the SWPPP.
2. The SWPPP must be amended if, during inspections or investigations by the operator's qualified
personnel, or by local, state, or federal officials, it is determined that the existing control measures are
ineffective in minimizing pollutants in discharges from the construction activity. Revisions to the
SWPPP shall include additional or modified control measures designed and implemented to correct
problems identified. If approval by the VESCP authority, VSMP authority, or department is necessary
for the control measure, revisions to the SWPPP shall be completed no later than seven calendar
days following approval. Implementation of these additional or modified control measures must be
accomplished as described in Part II G.
3. The SWPPP must clearly identify the contractor(s) that will implement and maintain each control
measure identified in the SWPPP. The SW PPP 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. SW PPP 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 SW PPP'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 SW PPP 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;
(a) 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.
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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 SW PPP 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.
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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.
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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 SW PPP. The reports shall contain the information listed in Part III 1 2.
NOTE: The reports required in Part III G, H and I shall be made to the department and the VSMP
authority. Reports may be made by telephone, email, or by fax. For reports outside normal working hours,
leaving a recorded message shall fulfill the immediate reporting requirement. For emergencies, the
Virginia Department of Emergency Management maintains a 24-hour telephone service at 1-800-468-
8892.
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:
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
4. Where the operator becomes aware of a failure to submit any relevant facts, or submittal of incorrect
position); and
c. The signed and dated written authorization is included in the SW PPP. 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 tojudicial 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.
1. State permits are not transferable to any person except after notice to the department. Except as
provided in Part III Y 2, a state permit may be transferred by the operator to a new operator only if the
state permit has been modified or revoked and reissued, or a minor modification made, to identify the
new operator and incorporate such other requirements as may be necessary under the Virginia
Stormwater Management Act and the Clean Water Act.
2. As an alternative to transfers under Part III Y 1, this state permit maybe 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
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
In accordance with 9VAC25-880-70, Part I B.4.d and Part II F of the General VPDES
Permit for Discharges of Stormwater from Construction Activities:
1. The applicable SWPPP inspection requirements specified in Part II F 2 shall be
amended as follows:
a. 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
b. 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.
2. Personnel responsible for on -site and off -site inspections. Inspections required by
this general permit shall be conducted by the qualified personnel identified by the
operator in the SWPPP. The operator is responsible for ensuring that the qualified
personnel conduct the inspection.
3. Inspection requirements.
a. As part of the inspection, the qualified personnel shall:
(1) Record the date and time of the inspection and when applicable the date
and rainfall amount of the last measurable storm event;
(2) Record the information and a description of any discharges occurring at
the time of the inspection;
(3) Record any land -disturbing activities that have occurred outside of the
approved erosion and sediment control plan;
(4) Inspect the following for installation in accordance with the approved
erosion and sediment control plan, identification of any maintenance
needs, and evaluation of effectiveness in minimizing sediment
discharge, including whether the control has been inappropriately or
incorrectly used:
(a) All perimeter erosion and sediment controls, such as silt fence;
(b) Soil stockpiles, when applicable, and borrow areas for stabilization
or sediment trapping measures;
(c) Completed earthen structures, such as dams, dikes, ditches, and
diversions for stabilization;
(d) Cut and fill slopes;
(e) Sediment basins and traps, sediment barriers, and other measures
installed to control sediment discharge from stormwater;
(f) Temporary or permanent channel, flume, or other slope drain
structures installed to convey concentrated runoff down cut and fill
slopes;
(g) Storm inlets that have been made operational to ensure that sediment
laden stormwater does not enter without first being filtered or
similarly treated; and
(h) Construction vehicle access routes that intersect or access paved
roads for minimizing sediment tracking;
(5) Inspect areas that have reached final grade or that will remain dormant
for more than 14 days for initiation of stabilization activities;
(6) Inspect areas that have reached final grade or that will remain dormant
for more than 14 days for completion of stabilization activities within
seven days of reaching grade or stopping work;
(7) Inspect for evidence that the approved erosion and sediment control
plan, "agreement in lieu of a plan," or erosion and sediment control plan
prepared in accordance with department -approved annual standards and
specifications has not been properly implemented. This includes but is
not limited to:
(a) Concentrated flows of stormwater in conveyances such as rills,
rivulets or channels that have not been filtered, settled, or similarly
treated prior to discharge , or evidence thereof,
(b) Sediment laden or turbid flows of stormwater that have not been
filtered or settled to remove sediments prior to discharge;
(c) Sediment deposition in areas that drain to unprotected stormwater
inlets or catch basins that discharge to surface waters. Inlets and
catch basins with failing sediments controls due to improper
installation, lack of maintenance, or inadequate design are
considered unprotected;
(d) Sediment deposition on any property (including public and private
streets) outside of the construction activity covered by this general
permit;
(e) Required stabilization has not been initiated or completed on
portions of the site;
(f) Sediment basins without adequate wet or dry storage volume or
sediment basins that allow the discharge of stormwater from below
the surface of the wet storage portion of the basin;
(g) Sediment traps without adequate wet or dry storage or sediment traps
that allow the discharge of stormwater from below the surface of the
wet storage portion of the trap; and
(h) Land disturbance outside of the approved area to be disturbed;
(8)Inspect pollutant generating activities identified in the pollution prevention
plan for the proper implementation, maintenance and effectiveness of
the procedures and practices;
(9)Identify any pollutant generating activities not identified in the pollution
prevention plan; and
(10)Identify and document the presence of any evidence of the discharge of
pollutants prohibited by this general permit.
4. Inspection report. Each inspection report shall include the following items:
a. The date and time of the inspection and when applicable, the date and
rainfall amount of the last measurable storm event;
b. Summarized findings of the inspection;
c. The location(s) of prohibited discharges;
d. The location(s) of control measures that require maintenance;
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.
VSMP INSPECTION REPORT
Project:
GCP Number:
Notice of Coverage posted? ❑ YES ❑ NO
SWPPP available for review? ❑ YES ❑ NO
Inspection
Date/Time
Inspection Conducted By
must be the Qualified Personnel identified in the SWPPP
Date of Last
Rainfall
Measureable
Amount
❑ Not applicable since inspection frequency is at least once every four business days
Storm Event
Record the information and a
description of any discharges
occurring at the time of the inspection
Record any land -disturbing activities
that have occurred outside the
approved erosion and sediment
control plan
Have controls Are controls
been installed in effectively Describe any maintenance needs or other deficiencies that were
Inspection requirements:
accordance with minimizing identified and the location of the deficiencies (e.g. have controls been
the approved sediment inappropriately or incorrectly used?)
ECP? discharges?
All perimeter erosion and sediment
❑ YES ❑ NO ❑ YES ❑ NO
controls (silt fence, etc.)
Soil stockpiles and borrow areas (for
stabilization or sediment trapping
❑ YES ❑ NO ❑ YES ❑ NO
measures)
Completed earthen structures, such as
dams, dikes, ditches, and diversions for
❑ YES ❑ NO
❑ YES ❑ NO
stabilization
Cut and fill slopes
❑ YES ❑ NO
❑ YES ❑ NO
Sediment basins and traps, sediment
barriers, and other measures (installed to
❑ YES ❑ NO
❑ YES ❑ NO
control sediment discharges from
stormwater)
Temporary or permanent channels, flumes,
or other slope drain structures (installed to
DYES ❑ NO
❑YES ❑ NO
convey concentrated runoff down cut and
fill slopes)
Storm inlets (to ensure that sediment laden
stormwater does not enter without first
❑ YES ❑ NO
❑ YES ❑ NO
being filtered or similarly treated)
Construction entrances and access routes
❑ yES ❑ NO
❑ YES ❑ NO
(for minimizing mud/sediment tracking)
Have stabilization activities begun on areas that have reached final grade or that will remain dormant for more than 14 days?
❑ YES ❑ NO
Were stabilization activities completed within seven days of reaching final grade or stopping work on areas that have reached
❑ YES ❑ NO
final grade or that will remain dormant for more than 14 days?
Inspect for the presence of the following:
Present?
Location
Concentrated flows of stormwater in conveyances (such as rills, rivulets
or channels) that have not been filtered, settled, or similarly treated prior
El YES El
NO
to discharge, (or evidence thereof)
Sediment laden runoff that has not been filtered or settled to remove
❑yES ❑
NO
sediments prior to discharge
Sediment deposition in areas that drain to unprotected stormwater inlets
❑ YES ❑
NO
or catch basins that discharge to surface waters.
Inlets and catch basins with failing sediment controls due to improper
❑ YES ❑
NO
installation, lack of maintenance, or inadequate design
Sediment deposition on any property (including public and private
❑ YES ❑
NO
streets) outside of the construction activity covered by the general permit
Required stabilization (initiated or completed on portions of the site?)
❑ YES
❑ NO
Sediment basinsttraps without adequate wet or dry storage volume
❑ YES
❑ NO
Sediment basins where the riser appears to be leaking, water appears to
be leaving the basin around the barrel pipe (rather than through it), or
❑ YES
❑ NO
the dewatering device appears to be dewatering basin from below the
water surface
Sediment traps that allow stormwater to discharge from below the
❑ YES
❑ NO
surface of the wet storage portion of the trap
Land disturbance outside of the approved limits of disturbance
I ❑ YES
❑ NO
Inspect the pollution prevention controls associated with the pollutant generating activities identified in the Pollution Prevention Plan
Inspect the pollution prevention controls
Have the controls
been properly
Are controls
Describe any maintenance needs or other
associated with the pollution generating activities
implemented as
effectively minimizing
deficiencies that were identified and the
location of the deficiencies (e.g. have controls
identified in Table 8.1 of the SWPPP
outlined on the PPP
pollutant discharges.
been inappropriately or incorrectly used)
sheet?
Clearing, grading or excavating
❑ N/A
❑ YES ❑ NO
❑ YES
❑
NO
Paving operations
❑ N/A
❑ YES ❑ NO
❑ YES
❑
NO
Concrete washout and concrete waste
❑ N/A
❑ YES ❑ NO
❑ YES
❑
NO
disposal
Structure construction, stucco, painting
❑ N/A
❑ YES ❑ NO
❑ YES
❑
NO
or cleaning
Dewatering operations
❑ N/A
❑ YES ❑ NO
❑ YES
❑
NO
Material delivery and storage
❑ N/A
❑ YES ❑ NO
❑ YES
❑
NO
Material use during building process
❑ N/A
❑ YES ❑ NO
❑ YES
❑
NO
Solid waste disposal
❑ N/A
❑ YES ❑ NO
❑ YES
❑
NO
Sanitary waste disposal (ports johns)
❑ N/A
❑ YES ❑ NO
❑ YES
❑
NO
Landscaping operations
❑ N/A
❑ YES ❑ NO
❑ YES
❑
NO
Vehicle Fueling or Maintenance
❑ N/A
❑ YES ❑ NO
❑ YES
❑
NO
Other (describe)
❑ YES ❑ NO
❑ YES
❑
NO
Other (describe)
❑ YES ❑ NO
❑ YES
❑
NO
Other (describe)
❑ YES ❑ NO
❑ YES
❑
NO
Other (describe)
❑ YES ❑ NO
❑ YES ❑ NO
Other (describe)
❑ YES ❑ NO
❑ YES ❑ NO
Identify the material(s) and document the location or
presence of any evidence of pollutant discharges that are
not authorized by the general permit
Identify the location(s) where any additional control
measures are needed that did not exist at the time of the
inspection
List the corrective actions required (including any changes to
the SWPPP that are necessary) as a result of the inspection
or to maintain Dermit comDliance
any corrective act!(
that have not been
" 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."
Signature:
Name:
Date:
Title:
(must be either the Operator or Delegated Authority, not necessarily the person who conducted the inspection)