HomeMy WebLinkAboutWPO201400084 VSMP - SWPPP 2014-12-16 Al. COUNTY OF ALBEMARLE
.Ji 1 �ii} Department of Community Development
i 401 McIntire Road,North Wing
Charlottesville,Virginia 22902-4596
Tel.(434)296-5832• Fax(434)972-4126
Stormwater Pollution Prevention Plan (SWPPP)
For Construction Activities At:
Glenmore Ground Storage Tank,Pump Station and Water Main Project
Address: Near the Intersection of Glenmore Way and Steamer Drive
WPO 201400084
Hydrologic Unit Code(HUC)020802040404—JR17
Receiving Waters: Carroll Creek—Rivanna River
Prepared by:
Michael Baker International
Prepared for:
Albemarle County Service Authority
SWPPP Preparation Date: November 2014
(This document is to be made publicly available according to 9VAC25-880-70,Part II, section D)
APPROVED
by the bemarle County
Community D veI pme D partment
Date 7,- t Vet
File
1.REGISTRATION STATEMENT 3
2. NOTICE OF GENERAL PERMIT COVERAGE 4
3.NATURE OF ACTIVITY 5
3.1 OVERVIEW 5
3.2 PROJECT DESCRIPTION 7
3.3 SITE CHARACTERIZATIONS 7
3.3.1 EXISTING SITE CONDITIONS 7
3.3.2 Sons ... 8
3.3.3 ROCK 8
3.3.4 CRITICAL AREAS 8
3.4 ESTIMATED AREA OF DISTURBANCE . .. .8
3.5 INTENDED SEQUENCE OF CONSTRUCTION 8
4.EROSION AND SEDIMENT CONTROL PLAN 10
4.1 EROSION CONTROL MEASURES 10
4.2 TEMPORARY STRUCTURAL PRACTICES 10
4 3 TEMPORARY AND PERMANENT SEEDING 10
5. STORMWATER MANAGEMENT PLAN 12
5.1 STORMWATER MANAGEMENT PRACTICES 12
5.2 NEAREST RECEIVING WATERS 13
6.POLLUTION PREVENTION PLAN 14
6.1 SPILL PREVENTION AND CONTROL 14
6.2 CONSTRUCTION DEBRIS AND DISPOSAL 14
6.3 CONCRETE TRUCK WASHOUT 14
6.4 SANITARY FACILITIES . ..... . 15
6.5 MUD,DEBRIS AND DUST CONTROL 15
6.6 STOCK PILES 15
6.7 EFFLUENT FROM DE-WATERING ACTIVITIES 15
6.8 SOURCES OF POLLUTION 16
6.9 RESPONSE AND REPORTING. 17
6.10 POLLUTION PREVENTION AWARENESS 17
7.DISCHARGE TO IMPAIRED WATERS 18
8.MAINTENACE OF SWPPP/QUALIFIED PERSONNEL 18
8.1 TRANSFER AGREEMENT ... 19
9.CERTIFICATION 20
10.DESIGNATION OF AUTHORITY 21
11.GENERAL PERMIT 22
12.INSPECTION LOG 23
13.VAR10 GENERAL PERMIT 24
Glenmore Ground Storage Tank,Pump Station and Water Main Project 2
Storm Water Pollution Prevention Plan-November 1014
SECTION 1: REGISTRATION STATEMENT
Glenmore Ground Storage Tank,Pump Station and Water Main Project 3
Storm Water Pollution Prevention Plan—November 2014
Registration Statement
General VPDES Permit for Discharges of Stormwater from Construction Activities (VAR10)
(Please Type or Print All Information)
1. Construction Activity Operator: (General permit coverage will be issued to this operator The Certification in Item #12 must be
signed by the appropriate person associated with this operator.)
Name- Albemarle County Service Authority
Contact: Jeremy M. Lynn, P.E.
Mailing Address- 168 Spotnap Road
City: Charlottesville State- VA Zip- 22911 Phone- 434-977-4511 Ext. 114
Email address(if available): ,jlynn(kserviceauthority.org
Indicate if DEQ may transmit general permit correspondence electronically: Yes ® No❑
2. Existing General Permit Registration Number(for renewals only):
3. Name and Location of the Construction Activity:
Name. Glenmore Ground Storage Tank, Pump Station and Water Main Project
Address (if available). Near the intersection of Glenmore Way and Steamer Drive
City: Keswick State: VA Zip. 22947
County(if not located within a City): Albemarle
Latitude(decimal degrees). 38.0048 Longitude(decimal degrees) -78.3764
Name and Location of all Off-site Support Activities to be covered under the general permit:
Name. N/A
Address (if available):
City: State: Zip:
County(if not located within a City):
Latitude(decimal degrees). Longitude(decimal degrees)-
4. Status of the Construction Activity(check only one): Federal ❑ State❑ Public III Private❑
5. Nature of the Construction Activity(e.g., commercial, industrial, residential, agricultural,oil and gas,etc.):
Utility Construction-ground storage tank, pump station and water line installation
6. Name of the Receiving Water(s)and Hydrologic Unit Code(HUC):
Name- Rivanna River- Carroll Creek Name. N/A
HUC- 020802040404—JR17 HUC.
7. If the discharge is through a Municipal Separate Storm Sewer System (MS4),the name of the MS4 operator:
Albemarle County and/or the Virginia Department of Transportation
8. Estimated Project Start and Completion Date:
Start Date(mm/dd/yyyy). 06/01/2014 Completion Date(mm/dd/yyyy): 12/31/2015
9. Total Land Area of Development(to the nearest one-hundredth acre): 1.57
Estimated Area to be Disturbed (to the nearest one-hundredth acre): 1.57
10. Is the area to be disturbed part of a larger common plan of development or sale? Yes❑ No III
11. A stormwater pollution prevention plan (SWPPP) must be prepared in accordance with the requirements of the General
VPDES Permit for Discharges of Stormwater from Construction Activities prior to submitting this Registration Statement.
By signing this Registration Statement the operator is certifying that the SWPPP has been prepared.
12. Certification: "I certify under penalty of law that I have read and understand this Registration Statement and that this document
and all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and
evaluated the information submitted. Based on my inquiry of the person or persons who manage the system or those persons
directly responsible for gathering the information, the information submitted is to the best of my knowledge and belief true,
accurate, and complete. I am aware that there are significant penalties for submitting false information including the possibility of
fine and imprisonment for knowing violations"
Printed Name- Jeremy NI. Lynn Title. Senior Civil Engineer
Signature: 3..,/ Date: 1 a 1316/01 q
(Please sign in INK. T s Certi !cation must be signed by the appropriate person associated with the operator identified in
Item#1.)
01/2014 Page 1 of 1
SECTION 2:NOTICE OF GENERAL PERMIT COVERAGE
Will be provided once received.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 4
Storm Water Pollution Prevention Plan—November 2014
SECTION 3:NATURE OF ACTIVITY
3.1 Overview
The pnmary purpose of Glenmore Ground Storage Tank, Pump Station and Water Main Project
At East Rivanna Fire Station is to install a ground storage tank to supply a pump station,which in
turn would supply the Glenmore area. The project requirements include all labor, matenals,
equipment, incidentals and other means of temporary and/or permanent construction necessary or
proper for performing and completing the work as shown in the Contract Documents. These
requirements include erosion and sediment control measures,as well as the control of stormwater
runoff and discharges from construction activities.
Key elements of this project include.
• Temporary land disturbances will be kept to the minimum required in order to facilitate
construction activities;
• A high-defmition preconstniction site survey video shall be performed, clearly
documenting the existing site and structure conditions within the work limits, easement
areas, staging areas and access routes for this Contract as well as all structures within 40
feet of the work limits;
• Trenching operations will be performed using both rubber-tire and track-mounted
equipment. All excavated areas will be secured using trench boxes, steel plating,or other
shoring mechanisms;
• Trench excavations will be limited to a distance of not more than one hundred and fifty
(150) feet ahead of pipe laying at any time, unless specifically authorized by the
Engineer;
• The total estimated land, disturbance at the ground surface level is estimated to be
approximately 1.57 acres (derived by multiplying the trench width by the total pipe
length, site grading, additional access and parking areas, ground storage tank and pump
station installations);
• Only suitable,unfrozen material excavated during construction(free from cinders, ashes,
refuse,organic material or other deleterious material)will be used for backfill;
• Backfill material will be compacted in lifts to prevent subsequent settlement;
• All surplus material excavated from the trench will be removed from the site and
disposed of in a proper and legal manner;
• Source control methods will be provided at the project site to reduce the amount of
pollutants entering stormwater runoff;
• Establishment of a permanent cover of fescue grass on all areas disturbed by construction
operations. In areas where established lawn turf is disturbed,it shall be seeded in kind.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 5
Storm Water Pollution Prevention Plan—November 2014
It is the policy of the Albemarle County Service Authonty(Owner)to ensure compliance with the
Commonwealth of Virginia's regulations regarding the discharge of stormwater from
construction and land disturbing activities associated with the construction of linear pipe and
appurtenances,or other facilities,as part of all Authority-owned construction projects.
The Operator is required to conform to all aspects of the Virginia Stormwater Management
Program (VSMP) regulations, as contained in 9VAC25-870 et seq. and 9VAC25-880 et seq., of
the Virginia Administrative Code. Full conformance with the VSMP General Permit regulations
will be required for all portions and/or phases of the work.
The prime Operator, its subcontractors, or any other parties involved with any activity that disturb
soils, or who implement a pollutant control measure identified in the Storm Water Pollution
Prevention Plan(SWPPP), as part of this project,must comply with the requirements of:
• Virginia Stormwater Management Program(VSMP)Regulation;
• VSMP General Permit for Discharges of Stormwater from Construction Activities;
• Virginia Erosion and Sediment Control Handbook(current edition);
• Albemarle County Service Authonty(ACSA)Construction Specifications,latest edition;
• Albemarle County Design Standards Manual,latest edition;
• Albemarle County Code of Ordinance;and,
• other documents which may be incorporated in this SWPPP by reference.
The Operator must comply with the VSMP General Permit (VAR10) notification and
SWPPP accessibility requirements in accordance with Part II C and Part II D of the
General Permit, respectively. A copy of the SWPPP document shall be kept on site at all
times, and be available to the general public. The Operator shall maintain the posted
information until termination of general permit coverage as specified in Part I F of the General
Permit.
The Operator shall be responsible for all aspects of erosion and sediment control by, as required
by the General Permit,including but not limited to:
• Performing the required routine inspections of control measures;
• Participatmg in any required site inspections by DEQ, the local program authority, or
other agencies;
• Repairing, replacing or installing additional erosion measures, as required to mitigate
deficiencies;
• Provide required revisions, additions and/or deletions to sub-sections of the SWPPP as
required or at the direction of DEQ,the local program authority or other agencies;
• Incorporation of additional sub sections to the SWPPP as required or at the direction of
DEQ,the local program authority or other agencies;and,
+ Payment of any and all fees, fines, or penalties, as a result of noted deficiencies, bypass
or upsets.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 6
Storm Water Pollution Prevention Plan—November 2014
3.2 Project Description
The majority of the Glenmore Ground Storage Tank, Pump Station and Water Main Project is
located to the east of the intersection of Glenmore Way and Steamer Drive. The project includes
approximately 2,500 linear feet of 12-inch ductile iron pipe (DIP) water line, one pressure
reducing valve assembly (PRV), one altitude valve and vault, one 600,000 gallon ground storage
tank(GST), one pump station(PS), associated appurtenance, E&S, and necessary site work. The
water line start from the PRV that is located on the west side of the intersection, runs eastward
along a future development road and enters the East Rivanna Volunteer Fire Station site,which is
located at 3501 Steamer Drive, in Keswick area of Albemarle County, Virginia. The water line
then connects to a GST and a pump station on the east corner of the fire station site. From the
pump station, the water line runs southwestern direction towards the end of Glenmore Way at a
cul-de-sac. The approximate center of the project area is: Latitude 38.004832, Longitude -
78.376358.
Work associated with this project includes the construction of: 1)approximately 2,500 linear feet
of 12-inch diameter water line on a public nght-of-way (ROW), an East Rivanna Volunteer Fire
Co. Inc. property and two Rivanna Village LLC properties; 2) one 600,000 gallon GST and one
PS on the East Rivanna Volunteer Fire Co.
Inc. property; and associated appurtenance, E&S, and necessary site work. Work associated with
this project will generally include:
• Installing,monitoring and maintaining all erosion and sediment control features;
• Dewatering of utility construction trenches as required;
• The water line installations;
• Interconnections to the existing water system;
• The ground storage tank installation;
• The pump station installation;
• Site grading and stormwater feature installations;
• Restoration of all disturbed areas and provide landscaping;and,
• All other labor, materials, equipment, incidentals and other means of temporary and/or
permanent construction necessary or proper for performing and completing the Work as
shown in the Contract Documents entitled "Glenmore Ground Storage Tank, Pump
Station,and Water Main Project.
3.3 Site Characterizations
3.3.1 Existing Site Conditions
The project corridor starts from a public ROW, traverses vegetated lands, and ends on
another public ROW. GST and PS installations will be located, on the East Rivanna
Volunteer Fire Co. Inc. Installation of facilities will be within public ROWs and proposed
easements. Residential properties abut the project corridor, with the limits of construction
shown on the drawings reflecting all permanent and temporary construction easements.
Vegetative clearing for water line, GST, and PS construction is required. Permanent impacts
shall be limited to the installation of the GST, the PS, additional parking area, which is
approximately 4,147 square feet(0.095 acres). 182 square feet(0.0042 acres)of VDOT Class
Glenmore Ground Storage Tank,Pump Station and Water Main Project 7
Storm Water Pollution Prevention Plan—November 2014
1 rip-rap will be for outlet protection and 472 square feet(0.011 acres)will be for a new bio-
retention. VDOT Class 1 rip rap will be installed near the downstream side of an existing 18-
inch RCP drainage pipe.
3.3.2 Soils
The Natural Resources Conservation Service's Web Soil Survey indicates the following soils
which may be present with the project limits:
Map Unit Map Unit Name Hydrologic Soil
Symbol Group
lB Abell Silt Loam,2to7 C
percent slopes
46B Lignum,2 to 7 percent D
slopes
Manteo Channery Silt
S1B Loam,2 to 7 percent slopes
62B Nason Silt Loam,2 to 7 B
percent slopes
51C Channery Silt Loam,7 to 15 D
percent slopes
3.3.3 Rock
No representation is provided regarding the presence or nature of rock within the project
limits. The Contract Documents state that all excavations are unclassified. It shall be the
Operator's responsibility to determine the nature and extent of rock presence.
3.3.4 Critical Areas
Disturbances in steep slope areas will be kept to the minimum required for construction in
accordance with Chapter 17 of the Albemarle County Code. Areas disturbed by construction
will be re-graded to pre-construction elevations. There are no permanent cut or fill areas. The
only managed slope area within the limits of disturbance is located at southwest corner of the
East Rivanna Volunteer Fire Station Co. Inc.property.
3.4 Estimated Area of Disturbance
The estimated total area of disturbance for sewer main and appurtenance installations equals
approximately 68,178 square feet (1.57 acres). This includes all areas within the limits derived
by multiplying the trench width by the total pipe length, site grading, additional access and
parking areas, and GST and PS installations. No additional off-site staging and/or storage areas
are anticipated,or included in the Contract Documents.
3.5 Intended Sequence of Construction
All construction methods and materials will conform to the project documents and applicable
regulatory requirements including Albemarle County Service Authority standards and/or
preferences,locality and/or County ordinances, state codes,amendments,and laws.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 8
Storm Water Pollution Prevention Plan—November 2014
Erosion and sediment control measures shall be placed prior to,or as the first step in construction.
The Operator shall be responsible for maintaining these measures throughout the life of the
project.
In accordance with the Contract Documents, it shall be Operator's responsibility to propose a
construction schedule to complete all work in the specified contract completion time period, and
the Operator shall be responsible for the sequencing, means and methods, scheduling and
coordinating the Work,for monitoring the progress of the Work, and for taking appropriate action
to keep the Work on schedule. Upon re-establishment of seeded areas, and only when approved
by the county inspector,the Operator will remove all erosion and sediment controls.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 9
Storm Water Pollution Prevention Plan—November 2014
SECTION 4: EROSION AND SEDIMENT CONTROL PLAN
4.1 Erosion Control Measures
Erosion and sediment control shall be in accordance with the Minimum Standards, as set forth
under 9VAC25-840-40 of the Virginia Administrative Code. Unless otherwise indicated, all
vegetative and structural erosion and sediment control structural practices shall be constructed
and maintained according to minimum Standards and Specifications of the Virginia Erosion and
Sediment Control Handbook,latest edition.
The Operator shall be required to provide erosion and sediment control measures during all
phases of the work. All erosion and sediment control measures shall be installed and maintained
in accordance with the Contract Documents. The erosion and sediment controls shown on the
plans represent the minimum required. The Operator may be required to provide additional
controls as necessary to prevent erosion and sedimentation at the direction of the Owner or its
duly appointed representative, or in the event that site conditions require additional controls in
order to effectively control erosion and sedimentation.
All temporary erosion and sediment control measures shall be removed, with the approval of the
County inspector, within thirty (30) days after final site stabilization or after the temporary
measures are no longer needed, unless otherwise authorized by the Owner or its duly appointed
representative. Trapped sediment and the disturbed soil areas resulting from the disposition of
temporary measures shall be permanently stabilized to prevent further erosion and sedimentation.
4.2 Temporary Structural Practices
Some controls are intended to function temporarily, and will be used for erosion and sediment
control during the construction period. These include:
Erosion and Sediment Control Layout
Temporary Silt Fence,denoted as"SF"on the plans
Construction Entrance(Ingress/Egress),denoted as"PCE"on the plans
Temporary and Permanent Seeding,denoted as"TS"and"PS"on the plans
Tree Protection,donated as"TP"on the plans
Rip-Rap Stabilization
4.3 Temporary and Permanent Seeding
Seeding and mulching procedures shall conform to the applicable provisions of the Virginia
Erosion and Sediment Control Handbook. Vegetated/grassed areas will be temporarily and
permanently stabilized by seeding.
Permanent or temporary soil stabilization shall be applied to denuded areas within seven(7) days
after final grade is reached on any portion of the site. Temporary soil stabilization shall be
applied within seven (7) days to denuded areas that may not be at final grade but will remain
dormant for longer than fourteen(14)days. Permanent stabilization shall be applied to areas that
are to be left dormant for more than one (1) year. Soil stabilization measures shall include (but
not limited to) vegetative establishment, mulching, and the early application of gravel base
material on areas to be paved.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 10
Storm Water Pollution Prevention Plan—November 2014
At the beginning of the next planting season, following that in which the permanent grass was
sown, the stand will be inspected. Grassed areas will be accepted if a ninety-five percent (95%)
cover by permanent grasses has been established and weeds are not excessive. Re-grade, fertilize
and reseed any areas not acceptably covered with dense grass or containing significant stands of
weeks. Continue to water, weed, fertilize and otherwise maintain the entire stand until the end of
that planting season, when another inspection will be made. Only when a dense stand of weed-
free grass is established will the planting be accepted.
Furnish all labor, equipment and materials and perform all work required to assure establishment
of a dense permanent cover of fescue grass on all areas disturbed by construction operations
except where established lawn turf is disturbed.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 11
Storm Water Pollution Prevention Plan—November 2014
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Michael 1 Baker Jr,. Inc. TAX MAP
Service {h��}+� DRAM. JLB ACSA PROJECT No.2013-04 Michael Baker z7 Bernd Rood, tat"`e 400
�V�7 CHECKED' �� CD PROJECT No.SDP 2014-54 N T E R N A T I 0 N A L F=5 ' ° 2 EROSION AND SEDIMENT CONTROL PLAN AX MA E&S 1
" " NO. DATE REN90N MAJOR SITE PLAN AMEND.TO SDP 1992-4 079
CONSTRUCTION OF A SILT FENCE TYPICAL SYNTHETIC PRODUCT
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STAKES
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'"r i�b��% FENCE 12 1/2 GAUGE MIN
FLOW rst4„,=vA4 2.5' 6' MAX
^I.i�•e•':.�11i F"—�'I MASH SPACING STONE 7D' min
.�4, ��AW 6
at'..:�1111 t��r._ 66" LONG METAL T-POST s .....................
- 6 MAX. CONS:RUCTION A
ASPHALT PAVED
"'•�emm, ACCESS--, WASHRAC:K
STAKE DRIVEN 18° BELOW _- -- 1 ;.."C !:CCI "•'
CLASS I RIPRAP GROUND SURFACE -II "'"' "��:I:I I
r y�- ?c�. "VDOT #3, #357 OR #5 COARSE AGGREGATE -'�� "� it 4. _ I
Fes„ ��✓ate TO REPLACE SILT FENCE IN HORSESHOE PS - _� ,fix���' �i- '��� 1 `XISTNG t
+tv,,,L'r`j, ��F�' q WHEN HIGH VELOCITY OF FLOW IS EXPECTED KES / y�4- T��,,;\,,�,;° 4,,,,,,:-tad cRAEM€PIT1
e��VlWA a". �Ie OPTIONAL STONE COMBINATION CF- Tio fa
M PMpX.Po Eyp POST-IMBED 3' !� i,
y�Laf * 1!-Y�!' ' REOU\RNO�10N5 i.ii :Z
MENT
}as!'...{tee,„, l` S CO �0ijaij�i i:�i *MUSTEXTEND f L'XI TH L_® `?OSTVE DRAINAGE
h t ,, , it ` �� / ibe fs. -�ENDWALL i:� !%i:� ��� ;i"i 3 THEA WIRE CH HFENCEEAND R EXTEND IT 4 TTHAEKEXCCA AND COMPACT or TOE AND EGRESS i T APP0ric DEVICE
�,,�w,.� yl 1�� '+at��! TOE OF FILLA�- _CULVERT '� �i !i -i: i,�% iii� $� �7i GROUND INTO THE TRENCH
•Ke DRIP UNE) UNDISTURBED AREA-► 0. 0i �i is00.0 �i 'i:� SURFACE z PAN
I:MI �i. ..��� .�, i. :�,o. . _ -' in n ` • PVE DRI.INAa
4, HIGH - VSIBIUT' PLASTIC of �. �" i 00.0 �, iA. '.� �! TO SEGMENT
TREE PROTECTION FENCE J w i..i � :�'i�i!'% ii.:�i:1 -- s/ /�% 2 Tt+Af'P LNG DEVICE
... / ���. :��;��,��.�i�/�_ 111 EXTENSION OF FABRIC AND yTE.. `.�_,{ ✓
i.
c LTOE OF FILL i'I' �=` WIRE INTO THE TRENCH. SECTION A-A
< SILT FENCE .a_,i i� �� t — "'
FILTER FABRIC GROUND UNE�� p', 1 A minimum water of1 inch 0)1101 be installed with a OUmuuunu 1 inch bsllcock
OR 4x4 POSTSLOW 'II WIRE OR ZIP TIES TO SECURE shutoff valve n inn a wash hose with a diameter of 1.5 niches for adequate
METAL FENCE POSTS,II,I,, •i "�,o f�wR�(I.1✓ �I m
'DISTANCE IS 6' MINIMUM IF FLOW 'I' SAFETY FENCE TO METAL POSTi constant pressure Wash inter mini be canned away from the entrance to an
IS TOWARD EMBANKMENT +1 ` , ,,
(TYP,) �- ' approved settling area to remove sedlmmt All sediment shall be prevented from
SILT FENCE entering stoma drains,ditches or watercourses
TP TREE PROTECTION ID CULVERT INLET PROTECTION CD ORANGE SAFETY FENCE SF TEMPORARY SILT FENCING CE PAVED CONSTRUCTION ENTRANCE
NOT TO SCALE NOT TO SCALE NOT TO SCALE NOT TO SCALE
Mesa Gott CESICNEll ZUC VSMP APPLICATIONGLENMORE GROUND STORAGE TANK, PUMP STATION, AND WATER MAIN PROJECT (PROJECT NO. 2013-04) NOVEMBER 2014
MichaelSerVkIt Baker Jr., Inc.
_,yj• _u r m.s(R a,SuitIttene
4 0 TAX MAP
Jim DRAW AB ACSA PROJECT No.2013-04 Michael Baker z7z B.adix Rya,s�lce,00
CD PROJECT No.SDP2014-54 Virginia -AB3 Virginia EROSION AND SEDIMENT CONTROL DETAILS 093A1 E&S2
40sievilKe.fmraexy °icKED CFV NO. oATE Rn1sa MAJOR SITE PLAN AMEND.TO SDP 1992-4 INTERNATIONAL Fax:757-483-0503 079
I ALBEMARLE COUNTY DESIGN STANDARDS MANUAL - GENERAL
i PROJECT NARRATIVE (CONTINUED)
c -" CONSTRUCTION NOTES FOR EROSION AND SEDIMENT CONTROL PLANS
t 'a t a°' � OFF-SITE AREAS
r+i, , e %3" 1. The plan approving authority must be notified one week prior to the pre-construction conference, one TOPSOIL MUST BE STRIPPED FROM GRADED AREAS AND STOCKPILED FOR USE IN FINAL GRADING AND PERMANENT
t: " 't 3NX week prior to the commencement of land disturbing activity, and one week prior to the final inspection. STABIUZATION. THE STOCKPILE WILL BE STABILIZED WITH TEMPORARY VEGETATION TO PREVENT SOIL LOSS AND
$ 82& 2. All erosion and sediment control measures will be constructed and maintained according to minimum SEDIMENT TRANSPORT FROM THE STOCKPILE ITSELF UNTIL NEEDED.
standards and specifications of the Virginia Erosion and Sediment Control Handbook and Virginia
I
f A �° ,$ ,i Regulations VR 625-02-00 Erosion and Sediment Control Regulations. SOILS
" - ,�. -'' + '1''' 3. All erosion and sediment control measures are to be placed prior to or as the first stepIn clearing. SEE SOILS MAP THIS SHEET.
>' 4. A copy of the approved erosion and sediment control plan shall be maintained on the site at all times. THE PREDOMINANT SOILS ON THE SITE ARE MANTEO CHANNERY SILT LOAMS, WITH 2 TO 7 PERCENT SLOPES AND 7 TO
a '� '' _� , 15 PERCENT SLOPES. THIS COMPONENT IS ON UPLANDS, INTERFLUVES. THE PARENT MATERIAL CONSISTS OF RESIDUUM
y ,' s <, 5. Prior to commencing land disturbing activities in areas other than indicated on these plans (including, but WEATHERED FROM SERECITE SCHIST. DEPTH TO A ROOT RESTRICTIVE LAYER, BEDROCK, UTHIC, IS 15 TO 20 INCHES.
l.cs .' ". y _ _ not limited to, off-site borrow or waste areas), the contractor shall submit a supplementary erosion THE NATURAL DRAINAGE CLASS IS SOMEWHAT EXCESSIVELY DRAINED. WATER MOVEMENT IN THE MOST RESTRICTIVE
'. """ control plan to the owner for review and approval by the plan approving authority. LAYER IS HIGH. AVAILABLE WATER TO A DEPTH OF 60 INCHES IS VERY LOW. SHRINK-SWELL POTENTIAL IS LOW. THIS
6. The contractor is responsible for Installation of any additional erosion control measures necessary to SOIL IS NOT FLOODED. IT IS NOT PONDED. THERE IS NO ZONE OF WATER SATURATION WITHIN A DEPTH OF 72 INCHES.
^`" } prevent erosion and sedimentation as determined bytheplan approving author( ORGANIC MATTER CONTENT IN THE SURFACE HORIZON IS ABOUT 1 PERCENT. NONIRRIGATED LAND CAPABILITY' * "` '� ' ' �t PP 9 t/. CLASSIFICATION IS 4E. THIS SOIL DOES NOT MEET HYDRIC CRITERIA.
r '"; '� `�-- .... 7. All disturbed areas are to drain to approved sediment control measures at all times during land disturbing
@ pz �� eP i. �_ ;' activities and during site development until final stabilization is achieved. EROSION do SEDIMENT CONTROL MEASURES
i t ,,.- . t )`�s 8. During dewatering operations, water will be pumped into an approved filtering device. ALL EROSION AND SEDIMENT (E&S) CONTROL PRACTICES AND DEVICES DESCRIBED HEREIN SHALL CONFORM TO THE
e i } ' 9. The contractor shall inspect all erosion control measures periodically and after each runoff producing CURRENT VIRGINIA E&S CONTROL HANDBOOK AND THE ALBEMARLE COUNTY CODE AND DESIGN STANDARDS MANUAL,
"s `; x -�1 rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devices LATEST EDITION(S).
y.,*.,,,,:c4 as t.. s shall be made immediately.
l ,.x'"^ i�' 46tB '� t;.� 10. All fill material to be taken from an approved, designated borrow area. STRUCTURAL PRACTICES
e• a.f' abr a: € 11. All waste materials shall be taken to an approved waste area. Earth fill shall be inert materials only, free PAVED CONSTRUCTION ENTRANCE 3.02: A PAVED CONSTRUCTION ENTRANCE SHALL BE INSTALLED AT THE ENTRANCE TO
,. Y PP THE SITE.
d - �, § --. of roots, stumps, wood, rubbish, and other debris.
} .� TEMPORARY PAVED WASH RACK: A MINIMUM WATER TAP OF 1" MUST BE INSTALLED WITH A MINIMUM 1" BALL-COCK
F � % 12. Borrow or waste areas are to be reclaimed within 7 days of completion per Zoning Ordinance section
- 57� .f'vz,.�,; : 5.1.28. SHUTOFF VALVE SUPPLYING A WASH HOSE WITH A DIAMETER OF 1.5" FOR ADEQUATE CONSTANT PRESSURE. WASH
' '' +° .a �^n \°�,. %" ' ;. 13. All inert materials shall be transported in compliance with section 13-301 of the Code of Albemarle. WATER MUST BE CARRIED AWAY FROM THE ENTRANCE TO AN APPROVED SETTUNG AREA TO REMOVE SEDIMENT. ALL
� •
-3•. Vr x,aca�a,.%; p p SEDIMENT SHALL BE PREVENTED FROM ENTERING STORM DRAINS, DITCHES, OR WATER COURSES. SHOULD THE
€'- A 4 ",�, '4>r- , .• 14. Borrow, fill or waste activity Involving industrial-type power equipment shall be limited to the hours of TEMPORARY PAVED CONSTRUCTION ENTRANCE NOT BE MAINTAINED PROPERLY OR AN EXCESSIVE AMOUNT OF SOIL
-xF , 510'` :- e 7:00am to 9:00pm. FOUND TRACKED ONTO THE PUBLIC ROADWAY, THEN A PAVED CONSTRUCTION ENTRANCE, WATER TANKER TRUCK WITH 2
51C.:`y'tr t ` y' 15. Borrow, fill or waste activity shall be conducted In a safe manner than maintains lateral support, or order
PRESSURE WASHERS AND A SETTLING AREA MAY BE REQUIRED BY THE EROSION AND SEDIMENT CONTROL PROGRAM
m- § �' vk' ` ADMINISTRATOR.
',,, a , k ,.- - r,.. .,,_ to minimize any hazard to persons, physical damage to adjacent land and improvements, and damage to
- - • any public street because of elides, sinking, or collapse. SILT FENCE 3.05: SILT FENCE SEDIMENT BARRIERS WILL BE INSTALLED AS SHOWN TO FILTER SEDIMENT-LADEN RUNOFF
zoo 0 zoo 4ao a 50 FROM SHEET FLOW TO PREVENT SEDIMENT LEAVING THE SITE.
SOILS MAP _ 16. The Owner shall reserve the right to install, maintain, remove or convert to permanent stormwater SILT FENCE CULVERT INLET PROTECTION 3.08-1: A SILT FENCE SHALL BE PLACED PERPENDICULAR TO THE 18-INCH
G zoo Norm. management facilities where applicable all erosion control measures required by this plan regardless of the
CULNO. NAME % SLOPE SOIL CHARACTERISTICS sale of any lot, unit, building or other portion of the property. SOIL STABIUZATIONT AT APPROXIMATE STATION 5+48, TO PROTECT THE DOWNSTREAM SIDE FROM EROSION.
17. Temporary stabilization shall be temporary seedingand mulching. SeedingIs to be at 75 !be/acre, and In SOIL MATTING 3.36: SOIL STABIUZATION MATTING WILL BE INSTALLED IN AREAS OF STEEP SLOPES NEAR
18 ABELL SILT 2 TO 7 THE ABELL COMPONENT MAKES UP 80 PERCENT OF THE MAP UNIT. SLOPES ARE P ry P ry STATION 3+38 TO MINIMIZE DISTURBANCE BY CONSTRUCTION.
LOAM 2 TO 7 PERCENT. THIS COMPONENT IS ON DRAINAGEWAYS, PIEDMONTS. THE the months of September to February to consist a 50/50 mix of Annual Ryegrass and Cereal Winter Rye, TREE PROTECTION 3.38: A FENCE BARRIER IS TO BE PLACED AROUND THE TREES WHICH WILL NOT BE DISTURBED TO
PARENT MATERIAL CONSISTS OF ALLUVIUM DERIVED FROM IGNEOUS ROCK. DEPTH or in March and April to consist of Annual Rye, or May through August to consist of German Millet. Straw PROTECT THE TREES FROM CONSTRUCTION EQUIPMENT AND SOIL COMPACTION.
TO A ROOT RESTRICTIVE LAYER, BEDROCK, PARAUTHIC, IS 30 TO 60 INCHES. mulch Is to be applied at 80Ibs/100sf. Alternatives are subject to approved by the County erosion control
THE NATURAL DRAINAGE CLASS IS MODERATELY WELL DRAINED. WATER inspector. MANAGEMENT STRATEGIES
MOVEMENT IN THE MOST RESTRICTIVE LAYER IS MODERATELY HIGH. AVAILABLE 18. Permanent stabilization shall be lime and fertilizer, permanent seeding, and mulch. Agricultural grade 1. CONSTRUCTION WILL BE SEQUENCED SO THAT GRADING OPERATIONS CAN BEGIN AND END AS QUICKLY AS POSSIBLE.
WATER TO A DEPTH OF 60 INCHES IS MODERATE. SHRINK-SWELL POTENTIAL IS limestone shall be applied at 901ba/1000sf, Incorporated into the top 4-6 inches of soil. Fertilizer shall be 2. SEDIMENT TRAPPING MEASURES WILL BE INSTALLED AS A FIRST STEP IN GRADING AND WILL BE SEEDED AND
LOW. THIS SOIL IS NOT FLOODED. IT IS NOT PONDED. A SEASONAL ZONE OF applied at 1000Ibs/acre and consist of a 10-20-10 nutrient mix. Permanent seeding shall be applied at MULCHED IMMEDIATELY FOLLOWING INSTALLATION.
WATER SATURATION IS AT 33 INCHES DURING JANUARY, FEBRUARY, MARCH, 1801bs/acre and consist of 95X Kentucky 31 or Tall Fescue and 0-5X Perennial Ryegrass or Kentucky 3. TEMPORARY SEEDING OR OTHER STABILIZATION WILL FOLLOW IMMEDIATELY AFTER GRADING.
DECEMBER. ORGANIC MATTER CONTENT IN THE SURFACE HORIZON IS ABOUT 1 Bluegrass. Straw mulch is to be applied at 80Ibs/10osf. Alternatives are subject to approved by the County 4. AREAS WHICH ARE NOT TO BE DISTURBED WILL BE CLEARLY MARKED BY FLAGS, SIGNS, ETC.
PERCENT. NONIRRIGATED LAND CAPABIUTY CLASSIFICATION IS 2E. THIS SOIL erosion control Inspector.
DOES NOT MEET HYDRIC CRITERIA. 19. Maintenance: All measures are to be inspected weeklyand after each rainfall. Anydamage or clogging to 5. THE VPDES PERMIT OPERATOR SHALL BE RESPONSIBLE FOR THE INSTALLATION AND MAINTENANCE OF ALL E&S
P 9 g9 9CONTROL PRACTICES.
46B UGNUM 2 TO 7 THE UGNUM COMPONENT MAKES UP 85 PERCENT OF THE MAP UNIT. SLOPES structural measures is to be repair Immediately. Silt traps are to be cleaned when 50X of the wet storage 6. UPON AUTHORIZATION FROM DESIGNATED COUNTY INSPECTOR, REMOVE ALL SEDIMENT CONTROLS AND STABILIZE ALL
ARE 2 TO 7 PERCENT. THIS COMPONENT IS ON PIEDMONTS, HILLSLOPES. THE volume Is tilled with sediment. All seeded areas are to be reseeded when necessary to achieve a good DISTURBED AREAS.
PARENT MATERIAL CONSISTS OF RESIDUUM WEATHERED FROM SERECITE SCHIST. stand of grass. Silt fence and diversion dykes which are collecting sediment to half their height must be
DEPTH TO A ROOT RESTRICTIVE LAYER, BEDROCK, PARAUTHIC, IS 40 TO 60 cleaned and repaired immediately. PERMANENT STABIUZATION
INCHES. THE NATURAL DRAINAGE CLASS IS MODERATELY WELL DRAINED. WATER 20. All temporary erosion and sediment control measures are to be removed within 30 days of final site ALL AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH PERMANENT SEEDING (PRACTICE 3.32) OR
MOVEMENT IN THE MOST RESTRICTIVE LAYER IS LOW. AVAILABLE WATER TO A stabilization, when measures are no longer needed, subject to approval by the County erosion control MATTING (PRACTICE 3.36), AS REQUIRED, IMMEDIATELY FOLLOWING FINISH GRADING.
DEPTH OF 60 INCHES IS MODERATE. SHRINK-SWELL POTENTIAL IS MODERATE. inspector.
THIS SOIL IS NOT FLOODED. IT IS NOT PONDER. A SEASONAL ZONE OF WATER MAINTENANCE
SATURATIONBER. ISR AT 21 INCHES DURING IN THE JANUARY, FEBRUARY,EO MARCH, ABOU MAY, IN GENERAL, ALL E&S CONTROL MEASURES WILL BE CHECKED DURING AND AFTER EACH SIGNIFICANT RAINFALL. IN
DECEMBER. ORGANIC MATTER CONTENT IN THE SURFACE HORIZON IS ABOUT 1 PARTICULAR, THE SILT FENCE WILL BE CHECKED REGULARLY FOR UNDERMINING OR DETERIORATION OF THE FABRIC.
PERCENT. NONIRRIGATED LAND CAPABIUTY CLASSIFICATION IS 2E. THIS SOIL PROJECT NARRATIVE SEDIMENT SHALL BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHES HALF WAY TO THE TOP OF THE
DOES NOT MEET HYDRIC CRITERIA. BARRIER.
518 MANTEO 2 TO 7 THE MANTEO COMPONENT MAKES UP 80 PERCENT OF THE MAP UNIT. SLOPES PROJECT DESCRIPTION,
CHANNERY ARE 2 TO 7 PERCENT. THIS COMPONENT IS ON UPLANDS, INTERFLUVES. THE THE PURPOSE OF THIS PROJECT IS THE CONSTRUCTION OF A GROUND STORAGE TANK AND PUMP STATION ON EAST SEDIMENT CONTROL PROGRAM - PHASE I
SILT LOAM PARENT MATERIAL CONSISTS OF RESIDUUM WEATHERED FROM SERECITE SCHIST. CORNER OF EAST RIVANNA VOLUNTEER FIRE COMPANY'S PARCEL AT 3501 STREAMER DRIVE AND EAST OF GLENMORE PHASE I E&S CONTROL PLAN IS INTENDED TO ESTABLISH PERIMETER CONTROL MEASURES, INCLUDING SILT FENCE.
DEPTH TO A ROOT RESTRICTIVE LAYER, BEDROCK, UTHIC, IS 15 TO 20 INCHES. WAY AT THE ENTRANCE TO THE GLENMORE COMMUNITY IN KESWICK, VIRGINIA. THE PROJECT WILL INCLUDE THE 1. INSTALL PAVED CONSTRUCTION ENTRANCE AND PERIMETER CONTROLS, INCLUDING SILT FENCE AS SHOWN ON
THE NATURAL DRAINAGE CLASS IS SOMEWHAT EXCESSIVELY DRAINED. WATER CONSTRUCTION OF THE GROUND STORAGE TANK AND THE PUMP STATION, THE INSTALLATION OF A WATER SUPPLY UNE CONSTRUCTION PLAN SHEETS.
MOVEMENT IN THE MOST RESTRICTIVE LAYER IS HIGH. AVAILABLE WATER TO A CONNECTING FROM AN EXISTING WATER LINE ON THE WEST SIDE OF THE GLENMORE WAY AND STEAMER DRIVE
DEPTH OF 60 INCHES IS VERY LOW. SHRINK-SWELL POTENTIAL IS LOW. THIS INTERSECTION TO THE NEW GROUND STORAGE TANK AND PUMP STATION, AND THE INSTALLATION OF A WATER 2. CLEAR THE SITE TO NO MORE THAN THE LIMITS OF CONSTRUCTION SHOWN ON THE CONSTRUCTION PLANS.
SOIL IS NOT FLOODED. IT IS NOT PONDED. THERE IS NO ZONE ISO WATER DISCHARGE UNE CONNECTING FROM THE GROUND STORAGE TANK AND THE PUMP STATION TO AN EXISTING WATER LINE
SATURATION WITHIN A DEPTH OF 72 INCHES. ORGANIC MATTER CONTENT IN THE AT THE CUL-DE-SAC AT THE END OF GLENMORE WAY. SEDIMENT CONTROL PROGRAM - PHASE l
SURFACE HORIZON IS ABOUT 1 PERCENT. NONIRRIGATED LAND CAPABILITY PHASE II EROSION AND SEDIMENT CONTROL PLAN IS INTENDED TO PROVIDE CONTROL MEASURES DURING THE FINAL
CLASSIFICATION IS 4E. THIS SOIL DOES NOT MEET HYDRIC CRITERIA. EXISTING SITE CONDITIONS STAGES OF IMPROVEMENTS.
THE GLENMORE SUBDIVISION CONSISTS OF 761 RESIDENTIAL UNITS, A GOLF COURSE, EQUESTRIAN CENTER, AND 1. BEGIN GROUND STORAGE TANK, WATER PUMP STATION AND PIPEUNE CONSTRUCTION.
51C MANTEO 7 TO 15 THE MANTEO COMPONENT MAKES UP 80 PERCENT OF THE MAP UNIT. SLOPES SWIMMING POOL. GLENMORE IS ZONED AS A PLANNED COMMUNITY FOR RIVANNA VILLAGE, APPROVED FOR AN
ADDITIONAL 804 RESIDENTAL UNITS AND COMMERCIAL DEVELOPMENT. 2. INSPECT CONTROL MEASURES AT LEAST ONCE DAILY.
CHANNERY ARE 7 TO 15 PERCENT. THIS COMPONENT IS ON UPLANDS, INTERFLUVES. THE THE WATER SUPPLY PIPELINE WILL PRIMARILY BE CONSTRUCTED ALONG THE SOUTH SIDE OF STEAMER DRIVE. THE 3. STABILIZE WITH PERMANENT SEEDING AFTER TRENCH BACKFILL AND COMPACTION. USE SOIL STABILIZATION MATTING
SILT LOAM PARENT MATERIAL CONSISTS OF RESIDUUM WEATHERED FROM SERECITE SCHIST. SUPPLY LINE WILL BE A DEDICATED LINE TO THE NEW GROUND STORAGE TANK. THE PUMP DISCHARGE LINE WILL BE WHERE CALLED FOR BY THE DRAWINGS.
DEPTH TO A ROOT RESTRICTIVE LAYER, BEDROCK, UTHIC, IS 10 TO 20 INCHES. INSTALLED IN A 20-FOOT WIDE EASEMENT BETWEEN 1192 ASHTON ROAD AND A PROPERTY OWNED BY RIVANNA 4. REMOVE CONTROL MEASURES ONLY AFTER ALL DISTURBED AREAS HAVE BEEN STABILIZED AND ONLY AS APPROVED
THE NATURAL DRAINAGE CLASS IS SOMEWHAT EXCESSIVELY DRAINED. WATER VILLAGE LLC. AND DIRECTED BY THE COUNTY INSPECTOR.
MOVEMENT IN THE MOST RESTRICTIVE LAYER IS HIGH. AVAILABLE WATER TO A GROUND ELEVATIONS RANGE BETWEEN 350 FEET TO 420 FEET. THE SITE HAS AN APPROXIMATE EIGHT FOOT ELEVATION
DEPTH OF 60 INCHES IS VERY LOW. SHRINK-SWELL POTENTIAL IS LOW. THIS DROP ACROSS 90 FEET OF THE AREA FOR THE NEW GROUND STORAGE TANK AND PUMP STATION. PRE AND POST DRAINAGE AREAS
SOIL IS NOT FLOODED. ITDEPTH IS NOT PONDED. THRE ORGANICIS NO ZONE OF WATER TOTAL DISTURBANCE FOR THE GROUND STORAGE TANK, PUMP STATION AND WATER SUPPLY AND DISCHARGE PIPELINE THE PRE AND POST DRAINAGE AREAS ARE SHOWN ON THE SITE PLAN ON SHEET 4. THE MAJOR DRAINAGE AREAS
SATURATIONRFE WITHIN AABOUT OF R2 INCHES.. NONIRRIGATED LAND CONTENT IN THE INSTALLATION WILL BE APPROXIMATELY 1.57 ACRES. REMAIN UNCHANGED IN THE PRE AND POST CONDITIONS, WHICH FLOWS TO THE SOUTHEAST AND IS CONVEYED INTO
SURFACE HORIZON IS 1 PERCENT. LAND CAPABILITY
CLASSIFICATION IS 6E. THIS SOIL DOES NOT MEET HYDRIC CRITERIA. THE ADJACENT PROPERTY AND AN EXISTING STREAM THROUGH SHEET FLOW OR THE EXISTING DITCH (TO BE MODIFIED
ADJACENT PROPERTY AS PART OF THE PROJECT). CONSTRUCTION OF THE NEW GROUND STORAGE TANK AND THE PUMP STATION WILL CAUSE
629 NASON 2 TO 7 THE NASON COMPONENT MAKES UP 80 PERCENT OF THE MAP UNIT. SLOPES THE EAST RIVANNA VOLUNTEER FIRE COMPANY PARKING LOT IS LOCATED WEST OF THE NEW GROUND STORAGE TANK A PORTION OF DRAINAGE AREA TO BE CONVEYED INITIALLY TO THE NEW BIORETENTION FACILITY, BUT THE OUTFALL OF
SILT ARE 2 TO 7 PERCENT. THIS COMPONENT IS ON UPLANDS, INTERFLUVES. THE AND PUMP STATION. GLENMORE WAY BORDERS THE PROJECT SITE TO THE WEST AND SOUTH. A VACANT AREA BORDERS. DRAINAGE AREA WILL REMAIN UNCHANGED. SILT FENCING DURING CONSTRUCTION WILL PROTECT PROPERTY FROM
LOAM PARENT MATERIAL CONSISTS OF RESIDUUM WEATHERED FROM SERECITE SCHIST. THE PROJECT SITE TO THE NORTH. A VACANT AREA BORDERS THE PROJECT SIDE TO THE EAST WITH SOME RESIDENTIAL RUNOFF.
DEPTH TO A ROOT RESTRICTIVE LAYER, BEDROCK, PARAUTHIC, IS 40 TO 60 PROPERTY TOWARD THE SOUTHERN EAST POINT. Ili OP y
INCHES. THE NATURAL DRAINAGE CLASS IS WELL DRAINED. WATER MOVEMENT IN rill _
THE MOST RESTRICTIVE LAYER IS MODERATELY HIGH. AVAILABLE WATER TO A FUTURE ADJACENT PROPERTY
DEPTH OF 60 INCHES IS MODERATE. SHRINK-SWELL POTENTIAL IS MODERATE. THE NEW RIVANNA VILLAGE DEVELOPMENT WILL SURROUND THE NORTHEAST AND SOUTHEAST SIDES OF THE GROUND WU FRAVDTAVA'
THIS SOIL IS NOT FLOODED. IT IS NOT PONDED. THERE IS NO ZONE OF WATER STORAGE TANK AND PUMP STATION. A 20-FOOT BUFFER ZONE FROM THE PROPERTY UNES WILL BE PROVIDED BETWEEN y uc No.034916 if
SATURATION WITHIN A DEPTH OF 72 INCHES. ORGANIC MATTER CONTENT IN THE THE GROUND STORAGE TANK AND THE SIDEWALK NORTHEAST OF THE TANK SITE. o,,, /�','//lq =`v
SURFACE HORIZON IS ABOUT 2 PERCENT. NONIRRIGATED LAND CAPABIUTY
Pss�oNni �`
CLASSIFICATION IS 2E. THIS SOIL DOES NOT MEET HYDRIC CRITERIA.
Atemcrie Gerdy DESGNED: ZMC VSMP APPLICATION Michael Baker Jr., Inc.
GLENMORE GROUND STORAGE TANK, PUMP STATION, AND WATER MAIN PROJECT (PROJECT NO. 2013-04) NOVEMBER 2014
Service AUK 1oliPIh/ ACSA PROJECT No.2013-04 2 2 e d Rods TAX MAP
gtANN: JLB Michael Baker 272 Bendix Road.Suite 400 E8C53
CD PROJECT No.SDP2014-54 Phone:
Beach,3-87a 23452 EROSION AND SEDIMENT CONTROL NARRATIVE AND NOTES 093A1.,�+::•i:x't>�+, �~` CHEd(FD• CFV NO. DATE REVISION INTERNATIONAL Fax:o 75754636050370 079
MAJOR SITE PLAN AMEND.TO SDP 19924
SECTION 5: STORMWATER MANAGEMENT PLAN
The project is anticipated to increase stormwater runoff due to the new GST, PS, additional
parking and site grading. The impervious surface area is increased by 0.095 acres. However,
stormwater runoff will be controlled at the project site source using a new bio-retention basin,
with no anticipated impacts to downstream lands. The Operator is required to strengthen,
augment,or provide other erosion control measures as required, in order to control erosion.
Modification to the current drainage pattern will result from proposed site grading. Such
drainage patterns will be directed and contained within the limits of the existing pump station site,
by use of a swale and a bioretention facility; therefore, there are no impacts anticipated for
adjacent lands.
5.1 Stormwater Management Practices
Permanent BMPs associated with this project include the installation of VDOT Class I rip rap,
occupying an area of approximately 182 square feet(0.0042 acres)and Bio-retention basin,
occupying an area of approximately 472 square feet(0.0110 acres),as shown on the plans. The
bioretention facility is designed to control stormwater quantity and/or quality. The BMP features
include:
Biosoil Media
Underdrain
Grass Swale
Biosoil Media is a specially blended state approved mixture of sand,top soil and compost
designed to support continual plant life,retain an infiltration rate of preferably 2 inches per hour,
and filter key pollutants from typical urban stormwater runoff. Key pollutants include
phosphorus,nitrogen,metals,and petroleum products.
The bioretention facility has been designed in accordance with the Level 1 design criteria in
Virginia Department of Conservation and Recreation Design Specification No.9—Bioretention
and the Virginia Runoff Reduction Spreadsheets. The facility will be 16-feet wide and 29.5-feet
long and allow up to 0.5 foot of ponding above the surface. When the depth of water exceeds 0.5
foot,the embankment on the west side of the bioretention basin shall act as a spillway allowing
water to spill over the side and down the existing hill. The biosoil media layer will be 2-feet deep
and the pea gravel layer will be 1 foot deep. A perforated underdrain will be installed in the
center of the pea gravel layer and will have 3 in.of pea gravel above and below the pipe. A 6 inch
solid pipe will connect to the underdrain to discharge the water.
The natural topography of the site drops off in the south direction. The relatively small flow rates
expected from the underdrain and any overflow should not result in erosion or any other
downstream issues. A solid polyvinyl pipe will connect the perforated underdrain pipe to existing
catch basin to the south of project and discharge to an onsite creek.
Grass swales will be constructed to convey water from the impervious areas to the bioretention
area. The swales will be approximately 240 feet long,3.5 feet wide and 0.45 foot deep. The
runoff from the roofs of the GST and the PS will be directed into this swale and then be conveyed
to the bioretention facility. The access roads to the GST and the PS will be sloped so that the
runoff will enter the grass swale.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 12
Storm Water Pollution Prevention Plan—November 2014
The features of the bioretention facility shall be constructed in accordance with the details and
notes in the plans
5.2 Nearest Receiving Waters
The project site is located within Hydrologic Unit Code (HUC) 020802040404 —JR17, with the
nearest receiving waters to the project site being a tributary to Carroll Creek, a tributary to the
Rivanna River.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 13
Storm Water Pollution Prevention Plan-November 2014
GUIDELINES - INSTALLATION. CONSTRUCTION AND
MAINTENANCE
BIORETENTION COMPONENTS SEQUENCE OF CONSTRUCTION WARRANTIES
• THE CONTRACTOR SHALL MAINTAIN A ONE (1) CALENDAR YEAR 80% CARE AND REPLACEMENT WARRANTY FOR
1. BIORETENTION FACILITY TO CAPTURE AND INFILTRATE STORMWATER, AREA IS APPROXIMATELY 472 SQUARE FEET ROUGH EXCAVATION OF THE BIORETENTION AREA MAY BE SCHEDULED WITH THE ROUGH GRADING OF THE PROJECT ALL PLANTING.
2 BIORETENTION FACILITY UNDERDRAIN SYSTEM; THE PERFORATED PIPE UNDER THE BIORETENTION AREA IS TO PERMIT USE OF THE EXCAVATED MATERIAL AS FILL ELSEWHERE ON THE SITE HOWEVER, THE BIORETENTION • THE PERIOD OF CARE AND REPLACEMENT SHALL BEGIN AFTER INSPECTION AND APPROVAL OF THE COMPLETE
APPROXIMATELY 30 LINEAR FEET AND THE SOLID PIPE THAT TRANSPORTS WATER FROM THE BIORETENTION AREA MUST NOT BE CONSTRUCTED OR PLACED IN SERVICE UNTIL THE ENTIRE CONTRIBUTING DRAINAGE AREA HAS INSTALLATION OF ALL PLANTS AND CONTINUE FOR ONE CALENDAR YEAR.
AREA TO THE OUTFALL LOCATION IS APPROXIMATELY 46 FT. BOTH PIPES ARE 6-INCHES IN DIAMETER BEEN STABILIZED THE LOCATIONS OF BIORETENTION AREAS MUST NOT BE USED FOR SEDIMENT AREAS FOR EROSION • PLANT REPLACEMENTS SHALL BE IN ACCORDANCE WITH THE MAINTENANCE SCHEDULE
3 GRASS SWALES TRANSPORTING RUNOFF TO THE BIORETENTION FACILITY; THE SWALES ARE APPROXIMATELY 240 AND SEDIMENT PROTECTION DURING SITE CONSTRUCTION THE SEQUENCE OF CONSTRUCTION SHALL BE AS FOLLOWS
LINEAR FEET. 1. INSTALL THE EROSION AND SEDIMENT CONTROL MEASURES FOR THE SITE. BIORETENTION AREA PLANTING SPECIFICATIONS
2 GRADE EACH SITE TO ELEVATIONS SHOWN ON PLAN. INITIALLY. THE FLOOR MAY BE EXCAVATED TO WITHIN
DEFINITIONS ONE FOOT OF ITS FINAL ELEVATION. EXCAVATION TO FINISHED GRADE SHALL BE DEFERRED UNTIL ALL • ROOT STOCK OF THE PLANT MATERIAL SHALL BE KEPT MOIST DURING TRANSPORT FROM THE SOURCE TO THE
DISTURBED AREAS WITHIN THE WATERSHED HAVE BEEN STABILIZED AND PROTECTED JOB SITE AND UNTIL PLANTED.
• BIOSOIL MEDIA - A SPECIALLY BLENDED STATE-APPROVED BIORETENTION MIXTURE OF SAND, TOP SOIL AND 3 COMPLETE CONSTRUCTION ON THE WATERSHED AND STABILIZE ALL AREAS DRAINING TO THE BIORETENTION • WALLS OF PLANTING PIT SHALL BE DUG SO THAT THEY ARE VERTICAL.
COMPOST DESIGNED TO SUPPORT CONTINUAL PLANT LIFE, RETAIN AN INFILTRATION RATE OF PREFERABLY 2 AREA. • THE DIAMETER OF THE PLANTING PIT MUST BE A MINIMUM OF SIX INCHES (6") LARGER THAN THE DIAMETER OF
INCHES PER HOUR, AND FILTER KEY POLLUTANTS FROM TYPICAL URBAN STORMWATER RUNOFF. KEY 4. REMOVE ALL ACCUMULATED SEDIMENT AND EXCAVATE BIORETENTION AREA TO PROPOSED DEPTH. USE THE BALL OF THE TREE.
POLLUTANTS INCLUDE PHOSPHORUS, NITROGEN, METALS, AND PETROLEUM PRODUCTS. RELATIVELY LIGHT, TRACKED EQUIPMENT TO AVOID COMPACTION OF THE FLOOR. AFTER FINAL GRADING IS • THE PLANTING PIT SHALL BE DEEP ENOUGH TO ALLOW 1/8 OF THE OVERALL DIMENSION OF THE ROOT BALL TO
• BMP - STORMWATER BEST MANAGEMENT PRACTICE THAT IS DESIGNED TO CONTROL STORMWATER QUANTITY COMPLETED, DEEPLY TILL THE FLOOR WITH ROTARY TILLERS OR DISC HARROWS TO PROVIDE A BE ABOVE GRADE LOOSE SOIL AT THE BOTTOM OF THE PIT SHALL BE TAMPED BY HAND.
AND/OR QUALITY WELL-AERATED, HIGHLY POROUS SURFACE TEXTURE. • THE APPROPRIATE AMOUNT OF FERTILIZER IS TO BE PLACED AT THE BOTTOM OF THE PIT
• UNDERDRAIN - SLOTTED OR PERFORATED PIPING THAT LIES BENEATH AN INFILTRATION BMP DRAIN FIELD AND IS 5 INSTALL THE LOW PERMEABILITY GEOTEXTILE IN ACCORDANCE WITH THE PLANS • THE PLANT SHALL BE REMOVED FROM THE CONTAINER AND PLACED IN THE PLANTING PIT BY LIFTING AND
DESIGNED TO DRAIN WATER FROM THE BMP AFTER IT HAS BEEN FILTERED BY OVERLYING MATERIALS 6 INSTALL THE PERFORATED UNDERDRAIN, INFILTRATION STONE, AND PEA GRAVEL IN ACCORDANCE WITH THE CARRYING THE PLANT BY ITS BALL (NEVER LIFT BY BRANCHES OR TRUNK).
UNDERDRAINS CAN BE PLACED TO RAPIDLY REMOVE ALL INFILTRATED STORMWATER OR TO ALLOW SOME SPECIFICATIONS AND DIRECTIONS LIGHTLY COMPACT WITH A LANDSCAPING ROLLER • SET THE PLANT STRAIGHT AND IN THE CENTER OF THE PIT SO THAT APPROXIMATELY 1 8 OF THE DIAMETER OF
STORMWATER TO MIGRATE TO A LOWER CHAMBER THEREBY FORCING A CERTAIN QUANTITY TO INFILTRATE TO 7 AFTER CONFIRMATION THAT SOIL MEETS SPECS BY PERFORMING THE REQUISITE GRADATION AND CHEMICAL THE ROOT BALL IS ABOVE THE FINAL GRADE /
NATIVE SOILS, SUCH AS FOR GROUNDWATER RECHARGE. TESTS, FILL BIORETENTION AREA WITH PLANTING SOIL, AS SHOWN IN THE PLANS AND DETAILED BELOW THE • BACKFILL PLANTING PIT WITH EXISTING SOIL>
BIORETENTION SOIL SHOULD NOT BE COMPACTED • MAKE SURE PLANT REMAINS STRAIGHT DURING BACKFILLING PROCEDURE
CONSTRUCTION AND INSTALLATION 8 INSTALL THE MULCH AND VEGETATION SPECIFIED IN THE PLANTING PLAN FOR BIORETENTION AREA. • NEVER COVER THE TOP OF THE BALL WITH SOIL MOUND SOIL AROUND THE EXPOSED BALL.
9. PLACE SOD IN UPSTREAM GRASS SWALE AND THE DOWNSTREAM EMBANKMENT. • TREES SHALL BE BRACED BY USING 2" BY 2" OAK STAKES. SHALL BE PLACED PARALLEL TO
A DESCRIPTION OF THE COMMON MATERIALS REQUIRED TO CONSTRUCT AND INSTALL BIORETENTION FACILITIES IS 10 UPON AUTHORIZATION FROM DESIGNATED INSPECTOR, REMOVE ALL SEDIMENT CONTROLS AND STABILIZE ALLWALKWAYS ANDR BUILDINGS STAKES ARE TO WHITE EQUALLY SPACEDS. STAKESE THE OUTSIDEL OFC THE TREE BALL
PRESENTED IN TABLE 1 THE SPECIFICATIONS FOR THE BIOSOIL MEDIA ARE PRESENTED IN TABLE 2. ADDITIONAL DISTURBED AREAS. BE
GUIDELINES CONCERNING BIORETENTION FACILITY MATERIALS AND PLACEMENT ARE GIVEN BELOW UTILIZING HOSE AND WIRE THE TREE IS BRACED TO THE STAKES
BIORETENTION AREA SOIL SPECIFICATIONS • BIORETENTION AREA PLANTS SHOULD NOT REQUIRE CHEMICAL FERTILIZATION.
• BIORETENTION FACILITIES SHOULD BE CONSTRUCTED AFTER THE DRAINAGE AREA TO THE FACILITY IS COMPLETELY
STABILIZED. EROSION AND SEDIMENT CONTROLS FOR PLANTING SOIL MAINTENANCE/INSPECTION GUIDELINES
• ALL MATERIALS ARE TO BE INSPECTED AND COMPARED TO THE PLAN SPECIFICATIONS PRIOR TO INSTALLATION. • THE SOIL MUST BE A STATE APPROVED MIX. REGULAR INSPECTIONS SHOULD BE COMPLETED ON A MONTHLY BASIS FOR THE FIRST SIX MONTHS AFTER
ANY MATERIALS NOT MEETING PLAN SPECIFICATIONS SHOULD BE REJECTED AND REPLACED WITH SUITABLE • THE BIORETENTION AREAS SHALL CONTAIN A PLANTING SOIL MIXTURE OF 50% SAND, 30% LEAF COMPOST (FULLY INSTALLATION THEREAFTER, THE FACILITY SHOULD BE INSPECTED EVERY 6 MONTHS. A SAMPLE MAINTENANCE
MATERIALS. COMPOSTED, NOT PARTIALLY ROTTED LEAVES), AND 20X TOPSOIL. TOPSOIL SHALL BE SANDY LOAM OR SCHEDULE CAN BE FOUND IN TABLE 3. THIS OR A SIMILAR PLAN SHOULD BE IMPLEMENTED FOR THE PROJECT
• STONE AND GRAVEL SHALL BE WASHED UNTIL LESS THAN 1 PERCENT PASSES THE #200 SIEVE. LOAMY SAND OF UNIFORM COMPOSITION. CONTAINING NO MORE THAN 5X CLAY, FREE OF STONES, STUMPS, NG SOIL
LANTI• EXCAVATION OF THE BIORETENTION FACILITY SHOULD BE COVERED WITH PLASTIC SHEETING OR OTHER MATERIAL ROOTS, OR SIMILAR OBJECTS GREATER THAN ONE INCH, BRUSH, OR ANY OTHER MATERIAL OR SUBSTANCE PLANTING
ISRECOMMENDED THAT THE APPLICATION OF ALKALINE, SUCH AS LIMESTONE, BE CONSIDERED ONCE TO TWICE
AT THE END OF THE WORK DAY, OR WHEN IT RAINS, TO INHIBIT THE COLLECTION AND INFILTRATION OF WHICH MAY BE HARMFUL TO PLANT GROWTH, OR A HINDRANCE TO PLANT GROWTH OR MAINTENANCE. TESTING• OF THE PH OF THE ORGANIC LAYER AND SOIL, SHOULD PRECEDE THE LIMESTONE
PRECIPITATION. THIS REQUIREMENT MUST BE MET UNTIL AT LEAST THE GEOTEXTILE AND STONE ARE • THE TOP SOIL SHALL BE FREE OF PLANTS OR PLANT PARTS OF BERMUDA GRASS, QUACK GRASS, JOHNSON A YEAR.APPLICATION TO DETERMINE THE AMOUNT OF LIMESTONE REQUIRED
INSTALLED PROPERLY AND IS FULLY FUNCTIONAL AS DESIGNED GRASS, MUGWORT, NUTSEDGE, POISON IVY, CANADIAN THISTLE OR OTHERS AS SPECIFIED IT SHALL NOT
CONTAIN TOXIC SUBSTANCES HARMFUL TO PLANT GROWTH. • SOIL TESTING SHOULD BE CONDUCTED ANNUALLY SO THAT THE ACCUMULATION OF TOXINS AND HEAVY METALS
TABLE 1 BIORETENTION FACILITY COMPONENTS • THE ENTION SOIL SHALL BE TESTED AND MEET THE FOLLOWING CRITERIA: CAN BE DETECTED OR PREVENTED. OVER A PERIOD OF TIME, HEAVY METALS AND OTHER TOXIC SUBSTANCES
WILL TEND TO ACCUMULATE IN THE SOIL AND THE PLANTS THE PREVENTATIVE MEASURES WOULD INCLUDE
TABLE 2 BIORETENTION SOIL CRITERIA THE REMOVAL OF THE CONTAMINATED SOIL. IN SOME CASES. REMOVAL AND DISPOSAL OF THE ENTIRE SOIL
SOURCE. VIRGINIA STORMWATER MANAGEMENT HANDBOOK BASE AS WELL AS THE PLANT MATERIAL MAY BE REQUIRED.
Component Material I Additional information • THE SOIL LAYER SHOULD BE INSPECTED FOR AREAS OF EROSION AND MATERIAL REPLACED AS NEEDED
Planting Soil Homogeneous • Mixture must be State approved
mixture of sots • The components of the soil should be mixed at pH Mr so-'.D PLANT MATERIALS
()spaer mat.. G. ,t t 3.r • THE MULCH LAYER SHOULD BE INSPECTED FOR AREAS OF EROSION AND MATERIAL REPLACED AS NEEDED
a batch cell prior to delivery to the site. s+•t••...itet too-teu, • THE ENTIRE MULCH LAYER SHOULD BE REPLACED EVERY TWO TO THREE YEARS IN THE SPRING WHEN THE
Pt:aught-tun 1K3-1..'ci•. MULCH LAYER IS REPLACED, THE PREVIOUS LAYER SHOULD BE REMOVED FIRST
• The soil media should be slightly moistened,as
P.aarttmi{.A}. 120-CVz:. • PLANT MATERIAL UPKEEP INCLUDES ADDRESSING PROBLEMS ASSOCIATED WITH DISEASE OR INSECT INFESTATIONS,
necessary,to prevent separation during sat.abls,zrss •etoemoted iF,00pp.a 9s0;WS w,e REPLACING DEAD PLANT MATERIAL, AND ANY NECESSARY PRUNING
installation Cut W*xdd i.000 ppm..t N C...MOS;mp g Ins
• See additional design guider Ines for soil media s. TABLE 3: SAMPLE MAINTENANCE SCHEDULE
in the narrative below. SOURCE: VIRGINIA STORMWATER MANAGEMENT HANDBOOK
Plants • Plarts must be able to tolerate highly variable THE FOLLOWING TESTING FREQUENCIES SHALL APPLY TO THE ABOVE SOIL CONSTITUENTS:
moisture conditlons,gene oily dry,with brief PH, ORGANIC MATTER: 1 TEST PER 90 CUBIC YARDS, BUT NO LESS THAN 1 TEST PER BIORETENTION AREA j
periods of Inundation MAGNESIUM. PHOSPHORUS, POTASSIUM, SOLUBLE SALTS 1 TEST PER 500 CUBIC YARDS. BUT NO LESS R•'..•p,ta• United [.rr**•••" 1 Nesealtbe.t:l
• Plarts must be able to tolerate a mu.xposureto THAN 1 TEST PER BORROW SOURCE
wind and sun,as well as salt and toxins in ONE GRAIN SIZE ANALYSIS SHALL BE PERFORMED PER 90 CUBIC YARDS OF PLANTING SOIL, BUT NO LESS Zroisiu
'" 'ss:€*m;; 'Meet k••o:r gawk,
runoff from roads,parking lots,and driveways. THAN 1 TEST PER BIORETENTION AREA. SOIL TESTS MUST BE VERIFIED BY A QUALIFIED PROFESSIONAL. -'
• Use of native plant species is preferred.
u7c,.A2.fi lia ttt
• See additional guidelines for plants below. MULCH r..,xcnsa>,-,,aawes aram tg*nr;,N•ns•t 5wnH•.+dtu
• AREAS SHOULD BE MULCHED ONCE TREES AND SHRUBS HAVE BEEN PLANTED ANY GROUND COVER SPECIFIED AS
Mulch fine shredded • Mulch is well aged when it has been stockpiles fao=s t e�ea S7 CPA Orc*Mo.ern as 4rtag
PLUGS MAY BE INSTALLED ONCE MULCH HAS BEEN APPLIED. lava a.r•i•.art:>ra•• ar••.•em
hardwood mulch or stored for 6 to 12 months. • THE MULCH LAYER SHOULD CONSIST OF STANDARD LANDSCAPE FINE SHREDDED HARDWOOD MULCH ,.r.,`»,aau
• Mulch should be uniform in color and free of • MULCH SHALL BE FREE OF WEED SEEDS, SOIL, ROOTS, OR ANY OTHER SUBSTANCE NOT CONSISTING OF EITHER _ -- - -
BOLE OR BRANCH WOOD AND BARK. AU,'.14069nAtI.,* ii"xs3. OW*•;v� ».•sae
foreign material,including plant material. • THE MULCH SHALL BE UNIFORMLY APPLIED APPROXIMATELY 2.5 INCHES IN DEPTH. Nidik"OpbPSi` -
Underdrain System and 6 inch,Schedule 40 • 3/8 inch perforations with each row of • INSTALLATION SHOULD BE PERFORMED BY A PROFESSIONAL LANDSCAPE CONTRACTOR s:a Ws
Cleanout or better polyvinyl perforations containing at least 6 holm. e••,.,.*,ntlit
.p.Ae•sn.* ;w r+mg weal.,.ce-aa :,Ate*x yeiS ;i ••+rt ad Cn.i
perforated and solid ] • Max spacing between rows of perforation shall PLANT MATERIAL GUIDELINES .r•�+ %id*ie a
pipe 1 be 6-inches and the minimum slope of the ,,,.,,,ee„_, ,ii,
pipe should be 1%. PLANT MATERIAL SOURCE 7:esaL:,=,.•zzx,cxwx 3v*rx>uouor x ,. yv.,us
• • THE PLANT MATERIAL SHOULD CONFORM TO THE CURRENT ISSUE OF THE AMERICAN STANDARD FOR NURSERY tad,a.,et a,:•es•
___ - STOCK PUBLISHED BY THE AMERICAN ASSOCIATION OF NURSERYMEN. deft mean
Low Permeability Needled,non. i • Must meet the following specifications • PLANT MATERIAL SHOULD BE SELECTED FROM CERTIFIED NURSERIES THAT HAVE BEEN INSPECTED BY STATE OR
*.+recut uf ssas im.,•..t ar alai :e m.ras,:-.s.• A
Geotextile woven, c Grab Tensile Strength(ASTM 0463I): FEDERAL AGENCIES t_t4..44 pixy t eat ca ta>z al pup,:
polypropylene >120lbs • THE BOTANICAL (SCIENTIFIC) NAME OF THE PLANT SPECIES SHOULD BE IN ACCORDANCE WITH A STANDARD :..r d.<r,.fwm:«
geotextllemeeting a Mullen Burst Strength(ASTM 03786); NOMENCLATURE SOURCE SUCH AS BIRR, 1975. a-,•' <eaaskw'
x • TREES SHOULD BE A MINIMUM OF ONE INCH CALIPER. SHRUBS SHOULD BE A MINIMUM OF TWO-GALLON pse=sWe
att•
criteria in Additional >225#s/in CONTAINER SIZE AND HERBACEOUS PLANS SHOULD BE A MINIMUM OF SIX INCH DIAMETER CONTAINER SIZE. ` xu•
Information a Apparent Opening Size(ASTM 04751): • ALL PLANT MATERIALS SHOULD BE TAGGED FOR IDENTIFICATION WHEN DELIVERED. 7•rt.su.,,its:„z• araast On•syw Cady now,.ra.
US A100 sieve wu - r u+z _
• Lines:fieoutsideofthebioretentlonfacilItyto INSTALLATION A•rax+•.Wd•ncw ay y nA � ,_•
Mork migration of native flies(material that • BALLED AND BURLAPPED AND CONTAINERIZED TREES AND SHRUBS SHOULD BE PLANTED DURING THE FOLLOWING =INNes<n.:
PERIODS: MARCH 15 THROUGH JUNE 30 AND SEPTEMBER 15 THROUGH NOVEMBER 15.
can pass the A200 sieve)into the facility • THE PLANTING OF TREES AND SHRUBS SHOULD BE PERFORMED BY FOLLOWING THE PLANTING SPECIFICATIONS close for I. "'"z i uw `.'-- atmm r
SET FORTH IN MS 3 05, LANDSCAPING. MS 3.05 SPECIFICATIONS PROVIDE GUIDELINES THAT INSURE THE -- .Filter Media VDOT#3,88.or N89 • Material between soi media and underdrain PROPER PLACEMENT AND INSTALLATION OF PLANT MATERIAL.
Pea Gravel stone layer _ . TM of,i.
Stone V DOT tf57Stone • Homogeneous stone layer with stone at least 6 1 rV A'•-►I
inches above and 6 inches below the "1iARFt MANN OVA a
underdrain A a
Lie.No'../034916
Alkaffie V DEWED: ZMC VSMP APPLICATION GLENMORE GROUND STORAGE TANK, PUMP STATION, AND WATER AUIN PROJECT (PROJECT NO. 2013-04) NOVEMBER 2014
Service AU#hOrity ACSA PROJECT No.2013-04 -72 Badi salter to 4 itao.
DRA. JLB Michael Baker 27 Bend, ,'s•It � TAX MAP
� cFv CD PROJECT No.SDP 2014-54 l N T E R N A T I 0 N A L Fax:n75Virginla 7e483 05050370ach,Virginia 23<52 STORM WATER MANAGEMENT NOTES 009 91 SWM 1
""aa`rimer,: NO. DATE ROMION MAJOR SITE PLAN AMEND.TO SDP 1992-4
E3EV OF 363.5R 131 STORMWATER COMPUTATION AND BMP CALCULATIONS
DEPTH VOID RATS VOLUME(FP) pUTFAL4
W tY01e7r 3f1ta a ovum
BE IaC •IOD1D SURFACE STORAGE 0.5 1 236
TIE Tie Mama AD ally OF 364.E Tr
or,or 363.5 1m,Ar ttasr>r or POUND BIOSOIL 2 D25 236 ` I THE NATURAL TOPOGRAPHY OF THE SITE DROPS OFF IN THE SOUTH DIRECTION. THE RELATIVELY SMALL FLOW
r ICILD PM rare.CAPPED AMA p1C Till yYDNE PEA GRAVEL 1 0.4 188.6 5
�� O.
(MIX l'move SOIL) ,TOTAL STORAGE= 660.8 -1 RATES EXPECTED FROM THE UNDERDRAIN AND THE EMERGENCY SPILLWAY (DURING INFREQUENT STORM
tlOIElfl/r)311 sOl UbdR 2' NOTE.THE BIORETERTTOH FACIUTY WILL REDUCE THE FLOW RATE Of EVENTS) SHOULD NOT RESULT IN EROSION OR ANY OTHER DOWNSTREAM ISSUES. A SOLID POLYVINYL PIPE
PEA MOIL LAIR 'r -ATOM
t Wit UWOW GEDICO•rCM CSoeS) STORMWATER ENTERING THE STREAM FROM"DRAINAGE AREA AlASA - ..-.. WILL CONNECT THE PERFORATED UNDERDRAIN PIPE TO THE OUTFALL LOCATION
UNDERDRAIN RESULT OF A 1 YEAR 24 HOUR STORM EVENT FROM A PRE-DEVELOPMENT D,5'
FLOW PATE OF 0.08CFS TO APOST.DEVELOPMENT FLOW RATE OF0.02 VEGETATED EMERGENCY SPILLWAY
VIDOCAL IMAMS CFS.
talacrRO MDIFORMLO UIN7FAOONrt THE PEAK FLOW RATE TO THE BIORETENTION AREA IS APPROXIMATELY 1 4 CFS DURING THE 100-YR OR
1-PERCENT-ANNUAL-CHANCE STORM EVENT. WHEN THE DEPTH OF WATER ABOVE THE BIORETENTION AREA
COWER PERFOIMOR
COMOC311 AT KST tell
RO GRASS SWALE TYRICAL REACHES 0.5-FT, THE EMBANKMENT ON THE WEST SIDE OF THE BIORETENTION BASIN WILL ACT AS A
er PVC PPE CROSS SECTION. SPILLWAY ALLOWING WATER TO SPILL OVER THE SIDE AND DOWN THE EXISTING HILL. NO STRUCTURES ARE
JOINCMIOINM hc,4r. ;4Ttt.., NOT TO SCM.E FOUND IN THE IMMEDIATE AREA DOWNSTREAM OF THE EMBANKMENT.
j'RrnS_SFIZJQM tqr
MliT TO WAX GRASS SWALE
- ONE MAJOR AND TWO MINOR GRASS SWALES SHALL BE CONSTRUCTED TO CONVEY WATER FROM THE
I ',-_ PROP GRASS SWALE TAX MAP 093A1-00-00-00400 IMPERVIOUS AREAS TO THE BIORETENTION AREA THE GRASS SWALES WHICH WILL CONVEY FLOW TO THE
• SEE CROSS-SECTION RIVANNA VILLAGE LLC
I 4 ,.>^-�.•' - --'�..•ti..L HIRTA/BLACK-EYED BIORETENTION FACILITY SHALL SERVE AS THE PRETREATMENT FOR FLOWS ENTERING THE FACILITY. THE SWALES
y e• ,/..----___._ •, �•�_ .a„Qa•= - DETAIL, THIS SHEET (D.B. 4375, PG. 410) SUSAN MANNING EQUATION FOR THE 10- OR 10-PRECENT-ANNUAL-CHANCE STORM EVENT AND
_ ARE SIZED USING I R YR
I ,1" +--..P GRAVEL TO BE GRADED 70 \ a"!• .• I WERE ANALYZED USING THE FLOWMASTER PROGRAM. THE MINIMUM DIMENSIONS ARE AS FOLLOWS
LIMITS OF DISTURBANCE/LIMITS OF 1 +; AIM TOWARD GRASS SWALE ': -_ PROP. 29.5'x16' BIORETENTION
CLEARING/LIMITS OF CONSTRUCTION I �- '- ; * •••� _ FACILITY OUTLINE BOTTOM WIDTH = 0 5 FT
4.✓3 �\ •, N. -_ INV. IN=364 TOP WIDTH = 3 5 FT
-`� .• \\ -�- •..� I SEE CROSS SECTION
t DETAILS, THIS SHEET
`,,..r;f"'+i /• •�� , PROP.•PUMP STATION, .. 1-(4)_CEPHALANTHUS DEPTH = 0.45 FT MAX.
,•\}-, i .� , � OCC(D€NTAUS/BUTTON SIDE SLOPES = 3 TO 1
I �. - 04%,...fRtkigh.
• � ,,��' �` �.��\ BUSH `- ,__•
• ` Site Data SummaI }•"`.�a4..,,�-' I' •'r- PROP. 30LR,6�"'• TY
PROP. 12" DIP 7 • PVC BIORETE ..:. Taia Ra:nta€I.asin,=1,eT
WATER SUPPLY LINE '-.' -' .• „ UNDERDRAIh}�i�_ •...............
-• .�� _-
-
. "�� � • .. •• :::::AM
IOW a/ A S R C 9 D Tot Ta
•fr oil1 5oiia aas Sais ai ial
• .. , t D.DC DIX 0.00 0.00`�.00 0.^C
PROP. ALTITUDE •/�I ; ` •, ' r .; _� -' _
.a t. x„ "• _.-__.. Tull laco.1 7-GO D.O0/ 0.3A 2.34 7727
.. r• f ,..w 0 ......}„ r....... Imperylous dacresI 0.0C 0h7 0.00 O.:Q• 0.10 22.73
VALVE & VAULT ,'e *,,. '��• r•' -•�''"°"�'� * i-'
.• I • .••• • ��-PROP. 18 CONC. STORM-PIPE D__„ '"^'•0'''
,,.•• I 20LF O 2.2% SLOPE ---__
:.• '• STA. 1+24 STA. 1+44 )
i. 0 PROP. 18" CONC, PROP. STORM ) _- ,51te R. 032
+• i/ '. . 4' S "U `- STORM PIPE WATER MANHOLE ` 'NV. OUT=3665 ) tRntD.vet°Pmerrtitratrn<r+tvoh,me(i>.3} r,53
/ ./• �`:,`,� + _ •,./-..
-- 1---r OSLOE..-- --TNI VOIN=3670--- I CLASS IROP 2DRYRIP RAP BORETEN IONCDRAIN PortDewlownamiPLAM )IV/VI 0.a36�e
/ + t ___--- C ND TO DAYLIGHT Past Development TN Land IIb/srI 2.9.2
. + I -- -- --.-..-..-- .1% SLOPE T°6AITPLoadRedTTtwnRcr4.1.dl/b/yri 0.22
,/ , •--___ I STA. d+00 I UNDERUNING - ---
y�'-' -,?---q PROP.,DROP INLET
I �� /� i C ; I TOP=374.5 TowlNa Velum.aeductionLre) ;Al(
-____I INV. OUT=369.5 Total TP load RedvcnorT AT)TteRV4(WW1
• Testa!TN Laad ReduTtbn Achis.rd(€b/yr) 2.93
TAX MAP 093A1-00-00-00200)• AalastHA Fast Develapr•'entTP.oedPO/Pi DIE
EAST RIVANNA VOLUNTEER
I 1 +' FIRE CO. INCORPORATED Remalhln(t Phosphorous Load Reductwtw]Haqulre9 Reduction - D.0C
I I DRAINAGE AREA A BOUNDARY
I I + DRAINING TO BIORETENTION FACILITY #3501 STEAMER DRIVE
a AREA=0.44 ACRES (D.B. 1204, PG. 201) 4rainaysArea Summp'v
•• • D.A.A D.A.B D.A.C D.A.D D.A,£ Total
I �• €west"aisa:) 0.00, 0:00 AVE. 0- TO 0.sOD
I Tali>arr.', 0.54 0.QU 0.00 0.00 L'.00 0.3a
I . [ i
Imp.Tviava(acres) 0.1E O00 0.00. 0.00 s.00 0.70
r 301
FL xl _ 20 4D scw E. I •
a 4� � .
� 'zo' aRzl Prainese Area ComWiancesummaPi
STORM WATER MANAGEMENT AND PLANTING PLAN D.A.A - D.A.R D.4.0 - D.A,D D.A.£ Total ,
TP Load Red,IIb/yr1 0.33` 0, 0.0D 0.00 0.00 0 22
TN toad R.d,lA/yr} 2.9/ 0, 000 0.00 U.Dd 2.93
Drainage Area A Surnmary
band Cover SUmmary
PLANT AND COMPOSITION SCHEDULE
BIORETENTION - A Salk R Soils C Soil, : D SMk Total - x of 7ata3
SIZE (acres) 009 AC(399 SF/14b28.5') DRAINAGE SUMMARY TABLE FLmst;eTTeS( 0.61` O.Drk 0.00, (IV O.Oc 0.i7iJ
STRUCTURE DESCRPTION LENGTH NVERT IN INVERT OUT SLOPE REMARKS
QUANTITY
OVERALL SPACING FREQUENCY SPECIES NUMBER Tort decrtsl 0.{X` O.IDC 0.00 DU 0..24 72.2.7
BOTANICALNAME COMMON NAME ANT
(FEET OFF CENTER) PER ACRE (%) QUANTITY 1 DN N/A N/A NOS N/A 4'MANHOLE Immirvion latres) D.CO 0.011 000 0.1D\ DION, 22.73
10 520 17% 4 CEPHAIANTHUS OCCIDENTAUS BUTTONBUSH 30.HT 2 1 P RCP,CLASS■ 124' N/A N/A 2 WA 0.44
2 2800 83% 25 RUDBECIIIA(ARIA BLACK-EYED SUSAN QT. 3 MANHOLE N/A 366.5 366.4 WA 4'MANHOLE
NOTES: 4 16•RCP CLASS III 5S WA 365.5 4 WA BMP STITCEIon5
1 CLUSTERING AND ARRANGEMENT OF THESE SPECES TO BE COORDINATED WITH ACSA STAFF
2.PLANT SPECIES ARE PER THE ALBEMARLE COUNTY RECOMMENDED PLANTS LIST. [Practice ICaed(t Area(acres) Downstream
3 VEGETATION SHALL ACHIEVE AT LEAST 75%COVERAGE WITHIN 2 YEARS OF THE BIORETENTION FACIUTY BEING INSTALLEDEt f Practk.
tn. Op p' Tato!Imp.rvbus{auto T..atTd Writs) D.10
1// Total Turf A1.8 Treated Lams) 3.34
0 (tTAVA' TotalTPtoadReductionAchievedInD.A.AIR>tyr) D.23Total TN Load Reduction A2M.ved in D.A.A(lb/yr) 2,93
.034916 4
v JwGAL° NOTE.T METHOD HE ANCV
SPREADSHEETAIS F
OM THE LATEST VIRGINIA RUNOFF
mode County DESIGNED: ZMC VSMP APPLICATIONLENMORE GROUND STORAGE TANK, PUMP STATION, AND WATER MAIN PROJECT (PROJECT NO. 2013-04) NOVEMBER 2014
Service Authority ACSA PROJECT No.2013-04 Michael Road,S to 4 Inc.t
I7RI11N1: JLB Michael Baker 27Beloau�t's400 TAX MAP
"hone:Beach.Virginia 2345' STORM WATER MANAGEMENT PLAN CALCULATIONS SWM2
snortv CD PROJECT No SDP 2014-54 Phone:leach. ir 770 00791
• CHECKED- DFv NO. DATE REVISION MAJOR SITE PLAN AMEND.TO SDP 1992-4 I N T E R N A T I 0 N A L Faz:757-IE3-0503
Bio retention Basin Design
Glenmore Ground Storage Tank,Pump Station and Water Main Project at East Rivanna Fire Station
Minimum Width= 16 ft
Bioretention Surface Area(SA)Calculations
Minimum Length= 29.5 ft For widths greater than 20 ft,the length should be at least twice the width to allow dispersed sheet flow
Max Pending Depth= 0.5 ft Without an underdrain
Existing Max Pending Depth= 1 ft With an underdrain
Total Drainage Area= 19,166 sq ft <measured from CAD Drawing> Surface Area= 472 sq ft
Impervious Area= • sq ft <measured from CAD Drawing> Elevations(Approximate)
Percent Impervious= 0.0 % Impervious Area= 4147 0o sq ft 364.00 Grade
Pervious Area= 19,166 sq ft Roof Area= 3,521.00 sq ft 363.50 Top of Mulch
Driveway= 626.00 sq ft 363.25 Bottom of Mulch/Top of Sail
Proposed 361.25 Bottom of Soil/Top of Pea Gravel
Total Drainage Area= 19,166 sq ft <measured from CAD Drawing> Bioretention Area= Impervious Area'5%= 207.35 sq ft <3.11-14> 360.25 Bottom of Pea Gravel/Tep of Underdrain Layer
Total pus Area 4,147 sq ft <measured from CAD Drawing> Bioretention Area= See Runoff Calcs Sheet 467.75 sq ft <to retain 1.0 in of runoff> 361.00 Top of Underdrain Pipe(Upstream)
Impe360.50 Bottom of Underdrain Pipe r
Percent Impervious= 21.6 % Siting 360.20 Bottom of Underdrain Pipe(Downstream)
Pervious Area= 15,019 sq ft Should be at least 20 ft downslope from any buildings 356.00 Downstream lie-in Elevation
Should be placed in are to promote public involvement
Used VA Runoff Reduction Spreadsheet to detemine the Design Level of the Bioretention area to meet the necessary pollutant reduction 2-4 ft required between the bottom of the facility and the water table/bedrock 0.5 Pending Depth
-Level 1 Bioretention Required
From Components
VA DCR Stormwater Design Specification No 9-Bioretention Mulch= 3 inches deep
Rio Sal= 2 ft deep Soil must be tested and meet the criteria from the Landscape Contractors Association(See Table tab)
Therefore.the Level 1 Bioretention Surface Area (SA)is computed as: Soil media should be composed of 55 percent sand,20 percent leaf compost,and 30 percent top soil
944.00 cubic ft of soil
Eaueffon_9,,3,,Bloretentfon Level 1 Design Surface Area Pea Gravel= 1 ft deep
SA a - Tv-the volume reduced byan u stream AMP)t i.4t?
4•.fE-J ,f..,.,,. P fr• Getltextile Fabric= Placed only above underdrain
Tv=1 C7hex.4 1:2 € Underdrain Pipe= 6 inch,Schedule 40 or better polyvinyl performated pipe,3/8 inch perforation with each row of perforations containing at least 6 holes.
fts+"-049<Pivoted Conditions.Runtdridetturaaiit Sp rwLtbrei Max spacing between rows of perforation shall be 5-inches and the minimum slope of the pipe should be 1%.
TV t'"049'.3 1.:,,:171.4 rill Cleanout= solid a that extends above
ti 1.i-(d,J.!ft pipe Pending depth
S 1_1�.2.4 Underdrain Pipe 30 ft long
Total Storage Depth Void Ratio
Rv= 0.41 'Site Rv on tab"summary"from VRRM ReDev Compliance Spreadsheet Surface Storage 0.5 5
Biosaii 2 0.25
Tv= 1*0.357*18731/12= 654.85 ft3 Gravel 1 0.4
SA= (546.32-0)11.4= 467 75 ft2 Total Storage= 660.8 cu ft >655 cu ft post development treatment volume an'summary'tab from VRRM ReDev Compliance Spreadsheet
Calculation of Design Rainfall Intensity
and Peak Storm Water Runoff Rate- U S.units
(for specified return period and storm duration)
inputs
Drainage Area,A= 0.430 acres Runoff Coefficient,C= a.37
Desiun Retire Perim= 100 seam Ts_Time of Cnncenirator,, 2 min
(Calculation below I
Time of Concentration Ilciraich Method:ADP.40-5 of VOOT Drainage Manual) Typical Range&x
Te=0.00941'H"-13.39•01.13 Typz of AM, RunxsfTCos t€
tiii'ieai
11 = 10.5 ft
1. = 225 ftConcrete Pavement 0.70-0.9S
Te 1 760 no, 'Park r('a mart' 010.0,23
I
Downtown Buautese 0.'0-0.95
Calculation of Design Rainfall Intensity,I,using the equation.i -elf d 0 b)
?using the value for storm dwatin,d,spec4ec above) Single Family •
Ren tentinl Ares 0.0-0 5D3
-=
Design Rainfall intensry.I= SAM in/hr Rational Method Runoffs xfl-mams
Calculation of Design Peak Storm Water Runoff Rate,0,using the equation: C=CIA
Design Peak Storm Water Runoff Rate,a• 1.4 cfs
Tn OFs,.
i.f ,
DIARIES FRNiK MAYA w
iLic No 034916
Aternale County DESIGNED: ZMC VS MP APPLICATIONGLENMORE GROUND STORAGE TANK, PUMP STATION, AND WATER MAIN PROJECT (PROJECT NO. 2013-04) NOVEMBER 2014
Michael Baker Jr., Inc.
Servip A.. • ACSA PROJECT No 2013-04 Michael Baker 27_F Frond*,R Suite 400 TAX MAP
ce Authiority °RAM. JLB V rgmia Be xn,Yr 23452
CHECKED' cFv CD PROJECT No SDP2014 54 1 N T E R N A T I 0 N A L Fa.e7S7s: rgVii STORM WATER MANAGEMENT PLAN CALCULATIONS 079
SWM3
• '�' NO. DATE REMSCN MAJOR SITE PLAN AMEND TO SDP 19924
INSTALL IMMEDATELY
R WA R
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THE PROJECT SHALL NOT
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(NOTE• NO GRADING 11' : --- 380. --.\ s.• .
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EROSION AND SEDIMENT CONTROL LEGEND \ \ \
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life County DESGNED: ZMC VSMP APPLICATION Michael Baker Jr. Inc. GLENMORE GROUND STORAGE TANK, PUMP STATION, AND WATER MAIN PROJECT (PROJECT NO. 2013-04)• NOVEMBER 2014
Service Auth4ority .— J LB ACSA PROJECT No.2013-04
CD PROJECT No.SDP 2014-54 Michael Baker IV2'''":
_7_8_dix Road,Suite 400'
Virginia"Bead),Virginia 23452
STORM WATER POLLUTION PREVENTION PLAN TAX MAP
093A1 pi
--') Phone:757-483-8770
INTERNATIONAL Fax:757-483-0503 079 CHESOZD. CFV MAJOR SITE PLAN AMEND.TO SDP 1992-4
NO. CIAIE RENSION
SITE COVERAGES Fx S0•Axm Eminwr/ —'
\ au i!O F Jol)
Existing Use TRAVEL WAY __�' PROP. 12" DIP WATER TAX MAP
09�
` (WIDTH 24' TYP. _ — �, 58. 1-00-00-00400
4 PILLAGE�%
_ ,� SUPPLY'SINE 08 u/s PG 41
Fire Department �� ,` _ . \\ NSc,?8ORr'r7rfv Lwv T
1 J i RTAL ACRES 41165
Existing Building 23,001 SF 0.53 Acres 8.80% -A�- _ ___ ' �_ _
Parking/Drive 65,700 SF 1.51 Acres 25.1% — ,_.___.... Y.__ • - -.., � Q
---- __ - . - �-- �1, i 'n�C I ,m DRAINAGE
_ ` r
•
Open Space 172,659 SF 3.96 Acres 66.1% - — ' ( _;y-'-`4----4- - -- DRAINAGE AREA---":"..• tom ' ., /AREA "A"
Total 261,360 SF 6.00 Acres 100% _:ter '* __ __ --_ ,------� - - 1 -i-AINAGE_• REA--'.G i �P��� /
__ _- - w� t __ A-Cf2ES:0-:3 - tih.,j. �► • co; ACRES=0.44
�- I ACRES=0..6f3_ � .f- N�IO- �r ` 9����1,
C5 - L ``-).)- -•7"`__..r.�rr \� , r i�411.•�W - ' / PROP. 62'0 GROUND
Proposed Use 1 ` I----- — yam== 1' - _ VDOT A L_7- _/ .Imo,,, Ay,
-390 - ._1 ` _ __ A ` i .' 35' HEIGHT,TANK, MAXIMUM
S.F.
UM
Fire Department -T\-- K��_>' C 1 I e s; end*id I` \�`A��� ,�
---- -----� )
---- °� F.e stoGae W ti s (F.F.E.=375.75
Existing Building 23,001 SF 0 53 Acres 8.80% '`�'�' pm/ I L-_ --- --- - / PROP- T8 STORM' DRAIN \`k_.__. =-'/7 / PROP. 20'
�Be'' 45 I i �' I . LANDSCAPE
Parking/Drive 65,700 SF 1.51 Acres 25.1% 1 L to.SKP09341-cren-acaa7 i
1EASEMENT
EAST A>1914M41 HxLAvr� \i'itSiZ,,,„.
0 en S ace 168,512 SF 3.87 Acres 64.5% � "� ---- �� /P P __ _ i 6'x15'-aPump Station&Tank \__ --- -- � 20' INGRESS/ I, � ;�__ ' GENERATOR & SLA9 t r /
d 1204,PG 201
SDP 199z 4 EGRESS MAX HEIGHT 8' \ PROP. PUMP STATION
Proposed Buildings 3,521 SF 0.08 Acres 1.3% 1 it �"'' T EASEMENT � / m F.F.E.=372.5
FR/RESCUE STATION-HXIM7FER '' $2 S F ( ). MAXIMUM
1 TOTAL ACRES 6a7 V nu• - ./ A '
Parking 626 SF 0.01 Acres 0.2% _ - 410 S F (APPROX.
I I f j — BUILDING HEIGHT 18,
4r� . I' ==1 A -T i iy i 15'x26')
Total 261,360 SF 6.00 Acres 100% i• V'''''_-r- r—�- ��- t � 1 -' j
E• 1 ". E 1-----— BRA /C FLO, _• -•••.y __L� , r 4' MANHOLE
''SJ '_ —f�E�- 7 1 - ' PROP. STAGING AREA
IMPERVIOUS AREA ON SITE
'"` -, ,,, - „•_., _ --.'�� _ `,-zrinpo9a4l�n-cn-t�axn / I t"t J �' AND STOCKPILE AREA
_ r txrT etwvwunme
Existing Impervious Area. 88,701 SF ---- _380 - - , / PROP. 12" DIP WATER
Pro osed Total Impervious 2 848 SF �v _ fir- -- �e-1a* ter- PROP. TANK & PUMP" I0 1 '
DISCHARGE LINE
P Pe 9 ^\ E Of Mar ----- -- - `�-' S47 - -STATJON EASEMENT LIMITS.- "" ��
PROP. TREE �\ -� t`%- -; 3m � ,,, °
-�TITl76E' AND''• - ♦�.iR''' _ - - r��_ �` - " Pim AcRe
v� .5► Is-- �_ n + �f f 11 \'--�`= - ---------". - T- r=, e= , n _ ` :"�, LF 6" DISCHARGE LINf�/ I - a/\
%♦ RESSURE / )'�F .. ` •m,n _-
SUSTAINI .VeLVE { r .� _ 1' __-_
VAOL�T I > y. - --- •�,� FR BIORETENTION C" -__
.
ASSEMBLY & 4 +•' 4 `. �� %� . • J r r f � ' - `- ��"'- BED 7 �
-GUARD 'OSTS > �► : .✓ .✓ Lam, III � \\ . „ --
4-4' 1 '
I�----- ,,,,,,,,,,,_. _ 7._ „:E.--_-i _ _ __ , N • 4 7-iitatilVkx ,.'\ _4
PROP. FIRE HYDRANT •
♦T
, *t\
XR/ .07900-00-00-02600----- ----------------------------_
memr
ITA) / \ leGHBORHOOD• / 35' HEIGHT, 3,019 S.F. \ TOTAL ACRES 427 \ _
�• (F.F,E.=375.75)
PROP. 18" STORM DRAIN I ` � '•�,-' /,/� i�7 \ �`_ ryrxnvs tL1fTC(KD
1 - i CRETE PAD 1 no- 8�zi sav
6"
- /�J' .'(tIP RAP \ rorACAccEs•aa
PROVIDE SIGNAGE STATING i •_ ti - P LAN -
"AUTHORIZED VEHICLES ONLY" I bt s 1E I. GROUND AREA \ \
'.. ' AROUND TANK AND \� Scale 1'=40' Hera
- • • ', 4' PUMP STATION TO
•- _ - I �i _ • BE GRASS
1 ' , ` �: 1/ r- / (PERMANENT
6'x15'r4" ?�1l } '" /� - SEEDING), TYP.
GENERATOR & SLAB kA t a ;
MAX HEIGHT 8' �,, ill , - PROP. 20'
92 S.F.' " ° ; 'j - - LANDSCAPE EASEMENT
fX.
AryaN u R a. I : Notes:
PROP. ASPHALT Zo ;6 e - 1. Zoning: Neighborhood Model District
PARKING AREA ell.'
/ �� PROP. PUMP STATION Magisterial: Scottsville
PROP. 18" STORM /i Votin Precinct: Stone-Robinson
DRAIN AND END f ♦ (F.F.E.=3725), MAXIMUM NonWater Su I Watershed
WALL VDOT EW-1 /_ _ BUILDING HEIGHT 18', PP Y---- —�-- I� 'a: A, i °4 / ' - r 410 S.F. (APPROX. 15'x26') 2. Site is Within FEMA Flood Zone X
7 \ ,:-- f
• PROP. 12" DIP WATER DISCHARGE LINE 3. Existing site is not served by public water or sewer.
�� ♦ / 4. All disturbed ground areas not paved will be
�--- 1,( permanently seeded with grass in accordance with TRO'v
,
.��//PROP. FIRE--NYDRANT TP �I , i -�" i Sheet 16 and Albemarle County Design Standards. rt/1
1 I r MS FROM i 1AVA
q
/ ?Q Lic No 034911
PARTIAL PLAN 9/0NAL
Scab 1'-20' Hariz
(° ity DESIGNED: ZMC VSMP APPLICATION GLENMORE GROUND STORAGE TANK, PUMP STATION, AND WATER MAIN PROJECT (PROJECT NO. 2013-04) NOVEMBER 2014
� � Mf�h�e�per J c. TAX MAP
Service Auth♦fl� DRAM' JLB ACSA PROJECT No 2013-04 Michael Baker rrz 6.nd.Road,s"it.,aa
'J CD PROJECT No.SDP2014-54 ACZ:Beoh.VrS 23452 PUMP STATION AND GROUND STORAGE TANK 093A1 P2
Phone•7-73-05 770
•` '`' a+Ea®: CFV N0. DALE at now MAJOR SITE PLAN AMEND.TO SDP 1992-4 I N T E E N A T I 0 N A L Fa. 757-463-0503
SECTION 6:POLLUTION PREVENTION PLAN
A variety of temporary pollution controls or Best Management Practices (BMPs) have been
included in the construction plans for this project. In addition to the controls listed in the erosion
and sediment control plan, and the stormwater management plan, additional pollution measures
are presented below. The Operator shall modify this plan as necessary to reflect its operation.
The Operator must update the plan to reflect its operation and to identify and
maintain current descriptions and storage/locations of all potential pollutant
sources. Potential sources of pollution include,but are not limited to: litter,
construction debris,recyclable materials,on-site sanitary facilities,dumpsters,waste
piles,stockpiles,vehicle wash and concrete truck washout locations,fuels,oils,
greases,hydraulic fluids,lubricants,paints,stains,soaps,solvents,detergents,
chemicals,fertilizers,or other caustic materials.
The Operator shall be responsible for prevention of discharge of solid matenals and wastes to the
surface waters adjacent to the site. Water used for construction, which discharges from the site,
must ongmate from a public water supply or private well approved by the Virginia Department of
Health.
6.1 Spill Prevention and Control
Substances that have the potential for polluting surface and/or groundwater must be controlled by
any means necessary to ensure there is no discharge from the project area. The Operator shall
provide proper storage,handling, and use of all potential pollutants sources. Such measures will
be provided to control drips, leaks or spills, and may include (but not be limited to) secondary
containment, such as portable dikes,berms, spill containment pallets, drip pans and spill recovery
and cleanup kits.
All drips, leaks or spills shall be cleaned in a manner consistent with the magnitude of the impact
they represent, and be disposed of m accordance with all local, state and/or Federal regulations.
This includes the removal, treatment and disposal of affected soil, to prevent impacts to
groundwater.
All storage containers,regardless of their contents, shall have approved spill containment where
required, be in sound condition, and free of rust, cracks or other damage which might
compromise the containment. Hoses,valves,fittings,caps,filler nozzles and associated hardware
shall be maintained in proper working condition at all times.
6.2 Construction Debris and Disposal
No solid matenals (including building materials, cartons, containers or other packaging) are
allowed to be discharged from the site with storm water. All solid waste, including disposable
materials incidental to the major construction activities,must be collected, removed from the site
and disposed of in a legal manner.
6.3 Concrete Truck Washout
Direct all concrete truck 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
Glenmore Ground Storage Tank,Pump Station and Water Main Project 14
Storm Water Pollution Prevention Plan—November 2014
precipitation. Hardened concrete wastes shall be removed and disposed of m 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.
6.4 Sanitary Facilities
All personnel involved with construction activities must comply with state and local sanitary or
septic system regulations,and be serviced regularly. Temporary sanitary facilities provided at the
site shall be serviced by a commercial operator, and shall comply with state and local sanitary or
septic system regulations. In accordance with OSHA regulations,hand washing facilities must be
provided.
6.5 Mud,Debris and Dust Control
The Operator shall clean streets of mud and dust and take whatever measures necessary to insure
that the streets are kept in a clean and dust free condition at all times.
Dust control shall be provided by the Operator to a degree that is acceptable to the Owner, and in
compliance with applicable local and state dust control regulations. After construction, the site
will be stabilized(as described elsewhere),which will reduce the potential for dust generation.
6.6 Stock Piles
Stock piles of soil and other erodible materials shall be stabilized or protected with sediment
trapping measures. The Operator is responsible for the temporary protection and permanent
stabilization for stockpiles onsite as well as for materials transported from the project site.
6.7 Effluent from De-watering Activities
Uncontaminated effluent from dewatering operations shall be filtered through a VDOT-approved
sediment dewatering system, and discharged in a manner that does not adversely affect adjacent
properties, wetlands, waterways, or the storm drainage system. Approved systems include;
Dirtbag 55 by ACF Environmental, Filter Bag by GeoProducts L.L.C., Ultra-Dewatering Bag by
UltraTech,and FB1,FB3,and FB4 by Frank Roberts&Sons Inc. The dewatering system shall be
in accordance with VDOT Standard Detail EC-8 of the VDOT Road and Bridge Standards.
No contaminated effluent or groundwater may be discharged without a separate
Virginia Pollutant Discharge Elimination System (VPDES)discharge permit.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 15
Storm Water Pollution Prevention Plan—November 2014
6.8 Sources of Pollution
The operator shall note the following potential sources of pollution and implement
appropriate pollution prevention practices or control measures.
Pollutant,or Pollutant Prevention Practices,
Generating Activity Location on site Control Measures
Follow Erosion and Sediment Control
Clearing,grading,excavating,and un- Land disturbance area Plan. Dispose of clearing debns at
stabilized areas acceptable disposal sites.Seed and mulch,
or sod within 7 days of land clearing
Driveway and Paved Construction Cover storm drain inlets and use drip pans
Paving operations and absorbent/oil dry for all paving
Entrances machines to limit leaks and spills
Direct concrete wash water into a leak-
Concrete washout and Current location shown on plan proof container or leak-proof settling basin
cement waste that is designed so that no overflows can
occur
Enclose or cover material storage areas
Structure construction,water main Mix paint indoors in a containment area or
construction,stucco,painting, and Structures in a flat unpaved area.Prevent the
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 and
Material delivery and storage Designated area shown on plan storage. Placed near construction
entrances,away from waterways and
drainage paths
Material use during building process Building areas Follow manufacturer's instructions.
MSDS's attached
Waste collection area will not receive a
substantial amount of runoff from upland
areas and does not drain directly to a
Solid waste disposal Current designated container areas on waterway Containers have lids covered
plan before periods of rain,or are in a covered
area. Scheduled collection to prevent
overfillmg MATERIALS NOT TO BE
BURIED ON-SITE
Convenient and well-maintained portable
sanitary facilities will be provided,and
Sanitary waste Current locations shown on plan located away from waterways or inlets.
Such facilities shall be regularly
maintained.
Apply fertilizers in accordance with
Landscaping operations Landscaped areas manufacturer's recommendations and not
during rainfall events
To be treated in a sediment basin or better
Wash Waters Wash areas shown on plan control as specified on plan.Minimize
the discharge of pollutants from
equipment and vehicle washing_
Vehicle and equipment washing Designated areas shown on plan Provide containment and filtering for all
wash waters per the plan
Glenmore Ground Storage Tank,Pump Station and Water Main Project 16
Storm Water Pollution Prevention Plan—November 2014
The operator shall 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.
6.9 Response and Reporting
Response and reporting of any leaks,spills or discharges shall be in accordance with Part III
(Conditions Applicable to All State Permits)of the General Permit.
6.10 Pollution Prevention Awareness
The SWPPP shall also be kept on site an accessible at all times and the content of the SWPPP
will be included as an agenda item and discussed at regularly scheduled progress meetings.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 17
Storm Water Pollution Prevention Plan—November 2014
SECTION 7:DISCHARGE TO IMPAIRED WATERS
Not Applicable.
SECTION 8:MAINTENACE OF SWPPP/QUALIFIED PERSONNEL
The techniques described in this SWPPP focus on providing control of pollutant discharges with
practical approaches that utilize readily available expertise,materials,and equipment.
Refer to Part II B (Stormwater Pollution Prevention Plan) of the General Permit for specific
requirements regarding amendments,modifications and updates to the SWPPP.
Unless otherwise noted in the General Permit, a complete copy of the SWPPP, including copies
of all inspection reports, plan revisions, etc., must be retained by the Operator at the project site
at all times during working hours. Upon completion of the project,the Owner will file the Notice
of Termination form with VDEQ. The SWPPP shall be kept in the Owner's permanent project
records for at least three (3) years following submission of the Notice of Termination form.
Authorization to discharge terminates at midnight on the date that the Notice of Termination is
submitted.
The Operator must provide names and addresses of all subcontractors working on this project
who will be involved with all construction activities that disturb site soil. This information must
be kept with this SWPPP.
The Operator and all subcontractors involved with land disturbing for this project must maintain
updated project documentation,which will be incorporated into construction records,and retained
for at least three(3)years following expiration or termination of the permit.
As described below, the Operator shall conduct regular inspections to determine effectiveness of
the SWPPP. The SWPPP shall be modified by the Operator as needed to prevent pollutants from
discharging from the site. The Operator's inspector must be both a person familiar with the site
and the nature of the major construction activities and be qualified to evaluate both overall system
performance and individual component performance. Additionally, the Operator's qualified
representative, Jeremy Lynn, P.E. (Tele. 434-977-4511 Ext.114) shall be empowered to
implement modifications to this SWPPP and the pollutant control devices, if needed, or in order
to increase effectiveness to an acceptable level. If a Transfer of Ownership Agreement is
completed,the qualified representative listed above will be void and the new Operator's qualified
individual shall be listed below:
Updated Qualified Individual Telephone
This SWPPP shall be updated each time there are modifications to the pollutant prevention
system or a change of Operators working on the project that disturbs site soil. The Operator shall
notify the Owner before these modifications are implemented, unless immediate Operator action
is necessary to prevent unauthorized discharges. If immediate Operator action is needed,then the
Operator shall notify the Owner of the action as soon as possible.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 18
Storm Water Pollution Prevention Plan—November 2014
This SWPPP must be amended as necessary during the course of construction in order to keep it
current with the pollutant control measures utilized at the site. Amending the SWPPP does not
imply a formalized update and re-print. It is acceptable to add addenda, sketches, handwritten
notes, new sections, revised drawings, and/or other pertinent records or documentation as
applicable.
If a section or phase of the project reaches fmal stabilization prior to the entire project reaching
final stabilization, then that section may be clearly marked on the site plans and the date of final
stabilization recorded m the SWPPP. Areas so marked are no longer required to be inspected as a
part of permit compliance.
This SWPPP is intended to control water-borne and liquid pollutant discharges by some
combination of interception, filtration, and/or containment. The Operator and all subcontractors
implementing this SWPPP shall remain aware of the need to periodically refine and update the
SWPPP in order to accomplish the intended goals.
This SWPPP shall be amended as necessary during the course of construction in order to keep it
current with the pollutant control measures utilized at the site. Amendments to the SWPPP may
include, but are not limited to: handwritten revisions; added, deleted or modified sections as
applicable;contract Change Orders; sketches and/or revised drawings.
A review of the contents of the SWPPP shall be a standing agenda item and shall be discussed at
each construction progress meeting held by the Operator/Contractor performing actual
construction activities on site.
Full compliance with the SWPPP and implementing regulations as contained in 9VAC25-870 et
seq. and 9VAC25-880 et seq. of the Virginia Administrative Code is required in order to fulfill
the Contract requirements and shall be considered incidental to the total contract value.
8.1 Transfer Agreement
State permits are not transferable to any person except after notice to the department.Except as
provided below,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.
This state permit may be automatically transferred to a new operator if:
A.The current operator notifies the department at least 30 days in advance of the proposed
transfer of the title to the facility or property;
B. The notice includes a written agreement between the existing and new operators containing a
specific date for transfer of state permit responsibility,coverage,and liability between them;and
C.The department does not notify the existing operator and the proposed new operator of its
intent to modify or revoke and reissue the state permit. If this notice is not received,the transfer
is effective on the date specified in the agreement.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 19
Storm Water Pollution Prevention Plan—November 2014
SECTION 9: CERTIFICATION
"I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true,accurate,
and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations."
Owner/Operator Name: 7er1..•5
Company: Alec..ac l c Co.�+ Scram•cc At�.ttzc ,45
Title: Cy:1 E,. ; c cr
Signature: /G� "yitt
Date: 13 leYD
•
Glenmore Ground Storage Tank,Pump Station and Water Main Project 20
Storm Water Pollution Prevention Plan—November 2014
SECTION 10:DESIGNATION OF AUTHORITY
I, (name),hereby designate the person or specifically described
position below to be a duly authorized representative for the purpose of overseeing compliance
with environmental requirements,including the Construction General Permit, at the
construction site. The designee is authorized to sign
any reports, stormwater pollution prevention plans and all other documents required by the
permit.
(name of person or position)
(company)
(address)
(city,state,zip)
(phone)
By signing this authorization,I confirm that I meet the requirements to make such a designation
as set forth in the Construction General Permit(CGP),and that the designee above meets the
definition of a"duly authorized representative".
Operator Name:
Company:
Title:
Signature:
Date:
Glenmore Ground Storage Tank,Pump Station and Water Main Project 21
Storm Water Pollution Prevention Plan—November 2014
SECTION 11: GENERAL PERMIT
Will be provided once received.
Glenmore Ground Storage Tank,Pump Station and Water Main Project 22
Storm Water Pollution Prevention Plan—November 2014
Transfer of Ownership Agreement Form
General VPDES Permit for Discharges of Stormwater from Construction Activities (VAR10)
(Please Type or Print All Information)
Instructions: This agreement form must be signed in INK by properly authorized individuals as specified in the General
VPDES Permit for Stormwater Discharges from Construction Activities (VAR10), Part III K (Signatory Requirements).
Please retain a copy of this agreement form for your records.
Mail the original agreement form to.
Department of Environmental Quality
Office of Stormwater Management, 10th Floor
P.O. Box 1105
Richmond, VA 23218
General Permit Registration Number: Date of Transfer(mm/dd/yyyy):
Construction Activity Name: Glenmore Ground Storage Tank,Pump Station and Water Main Project
CURRENT CONSTRUCTION ACTIVITY OPERATOR:
Albemarle County Service Authority
Name:
Contact: Jeremy M. Lynn, P.E.
Mailing Address. 168 Spotnap Road
City: Charlottesville State: VA Zip: 22911 Phone: 434-977-4511 Ext. 114
Email Address (if available): jlynngserviceauthority.org
"I (We) hereby agree to the transfer of ownership modification to the referenced General VPDES Permit for Discharges of
Stormwater from Construction Activities (VAR10)."
Printed Name: Jeremy M. Lynn Title: Senior Civil Engineer
Signature: Date:
NEW CONSTRUCTION ACTIVITY OPERATOR:
Name:
Contact:
Mailing Address:
City: State: Zip: Phone:
Email Address (if available):
Indicate if DEQ may transmit general permit correspondence electronically: Yes ❑ No ❑
I (We) hereby agree to the change of ownership modification to the referenced General VPDES Permit for Discharges of
Stormwater from Construction Activities (VAR10), and agree to accept all responsibility, coverage, and liability of the
general permit."
Printed Name' Title:
Signature: Date:
01/2014 Page 1 of 1
Notice of Termination
General VPDES Permit for Discharges of Stormwater from Construction Activities (VAR10)
(Please Type of Print All Information)
1. Construction Activity Operator:
Name.
Contact.
Mailing Address:
City: State Zip: Phone:
Email address(if available):
2. Name and Location of the Construction Activity: (As listed on the Registration Statement.)
Name. Glenmore Ground Storage Tank, Pump Station and Water Main Project
Address Of available) Near the intersection of Glenmore Way and Steamer Drive
City. Keswick State- VA Zip. 22947
County(if not located within a City). Albemarle
Latitude(decimal degrees)- 38.0048 Longitude(decimal degrees): -78.3764
3. General Permit Registration Number:
4. Reason for Terminating Coverage Under the General Permit: (The operator shall submit a Notice of Termination after one or
more of the following conditions have been met.)
® A. Necessary permanent control measures included in the SWPPP for the site are in place and functioning effectively and final
stabilization has been achieved on all portions of the site for which the operator is responsible When applicable, long-term
responsibility and maintenance requirements for permanent control measures 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;
n C. Coverage under an alternative VPDES or state permit has been obtained,or
n D. For residential construction only,temporary soil stabilization has been completed and the residence has been transferred to
the homeowner.
The notice of termination should be submitted no later than 30 days after one of the above conditions being met. Authorization to
discharge terminates at midnight on the date that the notice of termination is submitted for the conditions set forth in subsections B
through D above, unless otherwise notified by the VSMP authority or the Department. Termination of authorizations to discharge
for the conditions set forth in subsection A above shall be effective upon notification from the Department that the provisions of
subsection A have been met or 60 days after submittal of the notice of terminations, whichever occurs first.
5. Permanent Control Measures Installed: (When applicable, a list of the on-site and off-site permanent control measures (both
structural and nonstructural)that were installed to comply with the stormwater management technical criteria Attach a separate list
if additional space is needed.)
Permanent Control Measure#1
Type of Permanent Control Measure: Bio-retention Basin
Date Functional- TBD
Address(if available): 3501 Steamer Drive
City: Keswick State: VA Zip: 22947
County(if not located within a City): Albemarle
Latitude(decimal degrees): 38.048 Longitude(decimal degrees): -78.3764
Receiving Water: Rivanna River
Total Acres Treated: 0.43 Impervious Acres Treated. 0.10
01/2014 Page 1 of 2
Permanent Control Measure#2
Type of Permanent Control Measure: Not Applicable
Date Functional:
Address(if available):
City: State: Zip:
County(if not located within a City):
Latitude(decimal degrees): Longitude(decimal degrees):
Receiving Water:
Total Acres Treated. Impervious Acres Treated:
Permanent Control Measure#3
Type of Permanent Control Measure. Not Applicable
Date Functional.
Address(if available).
City: State. Zip.
County(if not located within a City)-
Latitude(decimal degrees): Longitude(decimal degrees)-
Receiving Water:
Total Acres Treated- Impervious Acres Treated-
6. Participation in a Regional Stormwater Management Plan: (When applicable, information related to the participation in a
regional stormwater management plan Attach a separate list if additional space is needed.)
Regional Stormwater Management Facility
Type of Regional Stormwater Management Facility: Not Applicable
Address(if available).
City State: Zip:
County(if not located within a City).
Latitude(decimal degrees): Longitude(decimal degrees):
Total Site Acres Treated: Impervious Site Acres Treated:
7. Perpetual Nutrient Credits: (When applicable, information related to perpetual nutrient credits that were acquired in accordance
with§62.1-44 15:35 of the Code of Virginia.Attach a separate list if additional space is needed.)
Nonpoint Nutrient Credit Generating Entity
Name Not Applicable
Perpetual Nutrient Credits Acquired (lbs/acre/year).
8. Certification: "I certify under penalty of law that I have read and understand this Notice of Termination and that this document and
all attachments were prepared in accordance with a system designed to assure that qualified personnel properly gathered and
evaluated the information submitted Based on my inquiry of the person or persons who manage the system or those persons
directly responsible for gathering the information, the information submitted is to the best of my knowledge and belief true,
accurate, and complete I am aware that there are significant penalties for submitting false information including the possibility of
fine and impnsonment for knowing violations."
Printed Name: Title:
Signature: Date:
(Please sign in INK. This Certification must be signed by the appropriate person associated with the operator identified in
Item#1.)
01/2014 Page 2 of 2
SECTION 12:INSPECTION LOG
Glenmore Ground Storage Tank,Pump Station and Water Main Project 23
Storm Water Pollution Prevention Plan—November 2014
POLLUTANT PREVENTION MEASURES
INSPECTION REPORT
Glenmore Ground Storage Tank,Pump Station and Water Main Project
Inspection Date/Time Inspector Name
Inspecting Company Name Inspector Title
Reason for Inspection: 0 Regular Inspection 0 Pre-Rainfall Inspection
0 Re-Inspection 0 Post-Rainfall Inspection
Has a sediment discharge occurred since the last inspection? ❑ Yes 0 No
Are the pollutant control measures in compliance with E&S regulations? 0 Yes 0 No
Check only one box for each item listed below:
(Check "N/A"only if the item does not apply to this project)
Item Description In Compliance at the Time of Inspection
SWPPP located on-site ❑ Yes ❑ No ❑ N/A
Scontains all E&S control updates
Construction Entrances 0 Yes 0 No 0 N/A
Sediment Barriers 0 Yes 0 No 0 N/A
Storage/Disposal Areas ❑ Yes 0 No 0 N/A
Sediment Traps 0 Yes 0 No 0 N/A
Check Dams 0 Yes 0 No 0 N/A
Inlet Protection 0 Yes 0 No 0 N/A
Tree Protection 0 Yes 0 No 0 N/A
Silt or Super Silt Fence 0 Yes 0 No 0 N/A
Diversion Dikes 0 Yes 0 No 0 N/A
._...._............... ...... __.. ........._ ..
Stockpile Stabilization 0 Yes 0 No 0 N/A
Temporary Stabilization of Denuded ❑ yes 0 No 0 N/A
Areas
Is Temporary Stabilization Adequate 0 Yes 0 No 0 N/A
Permanent Stabilization of Denuded Areas 0 Yes 0 No 0 N/A
Item Description(continued) In Compliance at the Time of Inspection
Is Permanent Stabilization Adequate ❑ Yes 0 No 0 N/A
Turbidity Curtains ❑ Yes 0 No 0 N/A
Public Roads Free of Dust and Debris ❑ Yes 0 No 0 N/A
Removal of Accumulated Sediment ❑ Yes 0 No 0 N/A
Discharge Points Free of Sediment ❑ yes ❑ No ❑ N/A
Deposits at Receiving Waters
Site Free of Trash/Litter ❑ Yes 0 No 0 N/A
Site Free of Spills,Leaks or Other ❑ Yes 0 No 0 N/A
Harmful Materials
Dumpsters Secured and Covered ❑ Yes 0 No 0 N/A
Natural Resources Protected ❑ Yes 0 No 0 N/A
Temporary Fuel Tanks Secured and ❑ yes 0 No 0 N/A
Contained
Wash Facilities Maintained ❑ Yes 0 No 0 N/A
Sanitary Facilities Maintained ❑ Yes 0 No 0 N/A
Dewatering Devices ❑ Yes 0 No 0 N/A
Removal of Pollutant Control Measures ❑ yes ❑ No ❑ N/A
Which Are No Longer Required
Repair of Defective,Damaged or Failing ❑ yes 0 No 0 N/A
Pollutant Control Measures
VSMP Permit Letter and SWPPP Location ❑ yes ❑ No ❑ N/A
Information Displayed
Other:
❑ Yes ❑ No ❑ N/A
❑ Yes ❑ No ❑ N/A
❑ Yes ❑ No ❑ N/A
Are additional sheets attached as a part of this Inspection Report? ❑ Yes 0 No
(Provide additional sheets as required for documentation)
CORRECTIVE ACTIONS TO BE TAKEN: 0 Yes 0 No
(Explain all Item Descriptions above checked"No",attach additional sheets as necessary)
COMMONWEALTH of VIRGINIA
DEPARTMENT OF ENVIRONMENTAL QUALITY
General Permit No.: VAR10
Effective Date: July 1, 2014
Expiration Date: June 30, 2019
GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM CONSTRUCTION
ACTIVITIES
AUTHORIZATION TO DISCHARGE UNDER THE VIRGINIA STORMWATER MANAGEMENT
PROGRAM AND THE VIRGINIA STORMWATER MANAGEMENT ACT
In compliance with the provisions of the Clean Water Act, as amended, and pursuant to the Virginia
Stormwater Management Act and regulations adopted pursuant thereto, operators of construction
activities are authorized to discharge to surface waters within the boundaries of the Commonwealth of
Virginia, except those specifically named in State Water Control Board regulations that prohibit such
discharges
The authorized discharge shall be in accordance with this cover page, Part I - Discharge Authorization
and Special Conditions, Part II - Stormwater Pollution Prevention Plan, and Part III - Conditions
Applicable to All VPDES Permits as set forth herein.
General Permit No.:VAR10
Page 1 of 21
PART I
DISCHARGE AUTHORIZATION AND SPECIAL CONDITIONS
A. Coverage under this general permit
1 During the period beginning with the date of coverage under this general permit and lasting until the
general permit's expiration date, the operator is authorized to discharge stormwater from construction
activities.
2 This general permit also authorizes stormwater discharges from support activities (e.g., concrete or
asphalt batch plants, equipment staging yards, material storage areas, excavated material disposal
areas, borrow areas) located on-site or off-site provided that:
a. The support activity is directly related to the construction activity that is required to have general
permit coverage for discharges of stormwater from construction activities;
b. The support activity is not a commercial operation, nor does it serve multiple unrelated
construction activities by different operators;
c. The support activity does not operate beyond the completion of the last construction activity it
supports;
d The support activity is identified in the registration statement at the time of general permit
coverage;
e. Appropriate control measures are identified in a stomiwater 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, I C, and I E, all discharges
covered by this general permit shall be composed entirely of stormwater associated with construction
activities.All other discharges including the following are prohibited:
1. Wastewater from washout of concrete;
2. Wastewater from the washout and cleanout of stucco, paint, form release oils, curing compounds,
and other construction materials;
3. Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance,
4. Oils,toxic substances, or hazardous substances from spills or other releases; and
5. Soaps, solvents, or detergents used in equipment and vehicle washing.
E. Authorized nonstormwater discharges The following nonstormwater discharges from construction
activities are authorized by this general permit when discharged in compliance with this general permit
1. Discharges from firefighting activities;
2. Fire hydrant flushings;
3. Waters used to wash vehicles or equipment where soaps, solvents, or detergents have not been
used and the wash water has been filtered, settled, or similarly treated prior to discharge;
4. Water used to control dust that has been filtered, settled, or similarly treated prior to discharge;
5. Potable water sources, including uncontaminated waterline flushings,
6. Routine external building wash down where soaps, solvents or detergents have not been used and
the wash water has been filtered, settled, or similarly treated prior to discharge,
7 Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred (or
where all spilled or leaked material has been removed prior to washing); where soaps, solvents, or
detergents have not been used; and where the wash water has been filtered, settled, or similarly
treated prior to discharge;
8. Uncontaminated air conditioning or compressor condensate;
9. Uncontaminated ground water or spring water;
10. Foundation or footing drains where flows are not contaminated with process materials such as
solvents;
11. Uncontaminated excavation dewaterng, including dewatering of trenches and excavations that have
been filtered, settled, or similarly treated prior to discharge; and
12. Landscape irrigation.
F. Termination of general permit coverage.
1. The operator of the construction activity shall submit a notice of termination in accordance with
9VAC25-880-60 to the VSMP authority after one or more of the following conditions have been met:
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a. Necessary permanent control measures included in the SWPPP for the site are in place and
functioning effectively and final stabilization has been achieved on all portions of the site for which
the operator is responsible. When applicable, long term responsibility and maintenance
requirements shall be recorded in the local land records prior to the submission of a notice of
termination;
b. Another operator has assumed control over all areas of the site that have not been finally
stabilized and obtained coverage for the ongoing discharge;
c. Coverage under an alternative VPDES or state permit has been obtained; or
d. For residential construction only, temporary soil stabilization has been completed and the
residence has been transferred to the homeowner.
2. The notice of termination should be submitted no later than 30 days after one of the above conditions
in subdivision 1 of this subsection is met. Authorization to discharge terminates at midnight on the
date that the notice of termination is submitted for the conditions set forth in subdivisions 1 b through
1 d of this subsection Termination of authorizations to discharge for the conditions set forth in
subdivision 1 a of this subsection shall be effective upon notification from the department that the
provisions of subdivision 1 a of this subsection have been met or 60 days after submittal of the notice
of termination, whichever occurs first.
3. The notice of termination shall be signed in accordance with Part Ill K of this general permit.
G.Water quality protection.
1. The operator must select, install, implement and maintain control measures as identified in the
SWPPP at the construction site that minimize pollutants in the discharge as necessary to ensure that
the operator's discharge does not cause or contribute to an excursion above any applicable water
quality standard.
2. If it is determined by the department that the operator's discharges are causing, have reasonable
potential to cause, or are contributing to an excursion above any applicable water quality standard,
the department, in consultation with the VSMP authority, may take appropriate enforcement action
and require the operator to:
a Modify or implement additional control measures in accordance with Part II B to adequately
address the identified water quality concerns;
b. Submit valid and verifiable data and information that are representative of ambient conditions and
indicate that the receiving water is attaining water quality standards; or
c. Submit an individual permit application in accordance with 9VAC25-870-410 B 3.
All written responses required under this chapter must include a signed certification consistent with Part
III K.
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PART II
STORMWATER POLLUTION PREVENTION PLAN
A stormwater pollution prevention plan (SWPPP) shall be developed prior to the submission of a
registration statement and implemented for the construction activity, including any support activity,
covered by this general permit. SWPPPs shall be prepared in accordance with good engineering
practices Construction activities that are part of a larger common plan of development or sale and disturb
less than one acre may utilize a SWPPP template provided by the department and need not provide a
separate stormwater management plan if one has been prepared and implemented for the larger
common plan of development or sale.
The SWPPP requirements of this general permit may be fulfilled by incorporating by reference other plans
such as a spill prevention control and countermeasure (SPCC) plan developed for the site under§ 311 of
the federal Clean Water Act or best management practices (BMP) programs otherwise required for the
facility provided that the incorporated plan meets or exceeds the SWPPP requirements of Part II A All
plans incorporated by reference into the SWPPP become enforceable under this general permit. If a plan
incorporated by reference does not contain all of the required elements of the SWPPP, the operator must
develop the missing elements and include them in the SWPPP.
Any operator that was authorized to discharge under the general permit issued in 2009, and that intends
to continue coverage under this general permit, shall update its stormwater pollution prevention plan to
comply with the requirements of this general permit no later than 60 days after the date of coverage under
this general permit.
A Stormwater pollution prevention plan contents. The SWPPP shall include the following items:
1. General information.
a. A signed copy of the registration statement, if required, for coverage under the general VPDES
permit for discharges of stormwater from construction activities;
b. Upon receipt, a copy of the notice of coverage under the general VPDES permit for discharges of
stormwater from construction activities (i.e., notice of coverage letter);
c. Upon receipt, a copy of the general VPDES permit for discharges of stormwater from construction
activities,
d. A narrative description of the nature of the construction activity, including the function of the
project(e.g., low density residential, shopping mall, highway, etc.);
e. A legible site plan identifying:
(1) Directions of stormwater flow and approximate slopes anticipated after major grading
activities;
(2) Limits of land disturbance including steep slopes and natural buffers around surface waters
that will not be disturbed;
(3) Locations of major structural and nonstructural control measures, including sediment basins
and traps, perimeter dikes, sediment barriers, and other measures intended to filter, settle, or
similarly treat sediment, that will be installed between disturbed areas and the undisturbed
vegetated areas in order to increase sediment removal and maximize stormwater infiltration,
(4) Locations of surface waters;
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(5) Locations where concentrated stormwater is discharged,
(6) Locations of support activities, when applicable and when required by the VSMP authority,
including but not limited to (i) areas where equipment and vehicle washing, wheel wash
water, and other wash water is to occur; (ii) storage areas for chemicals such as acids, fuels,
fertilizers, and other lawn care chemicals; (iii) concrete wash out areas; (iv) vehicle fueling
and maintenance areas, (v) sanitary waste facilities, including those temporarily placed on
the construction site; and (vi)construction waste storage; and
(7) When applicable, the location of the on-site rain gauge or the methodology established in
consultation with the VSMP authority used to identify measurable storm events for inspection
purposes.
2. Erosion and sediment control plan.
a. An erosion and sediment control plan approved by the VESCP authority as authorized under the
Erosion and Sediment Control Regulations (9VAC25-840), an "agreement in lieu of a plan" as
defined in 9VAC25-840-10 from the VESCP authority, or an erosion and sediment control plan
prepared in accordance with annual standards and specifications approved by the department.
Any operator proposing a new stormwater discharge from construction activities that is not
required to obtain erosion and sediment control plan approval from a VESCP authority or does
not adopt department-approved annual standards and specifications shall submit the erosion and
sediment control plan to the department for review and approval.
b. All erosion and sediment control plans shall include a statement describing the maintenance
responsibilities required for the erosion and sediment controls used
c. A properly implemented approved erosion and sediment control plan, "agreement in lieu of a
plan," or erosion and sediment control plan prepared in accordance with department-approved
annual standards and specifications, adequately:
(1) Controls the volume and velocity of stormwater runoff within the site to minimize soil erosion,
(2) Controls stormwater discharges, including peak flow rates and total stormwater volume, to
minimize erosion at outlets and to minimize downstream channel and stream bank erosion;
(3) Minimizes the amount of soil exposed during the construction activity;
(4) Minimizes the disturbance of steep slopes;
(5) Minimizes sediment discharges from the site in a manner that addresses (i) the amount,
frequency, intensity, and duration of precipitation; (ii) the nature of resulting stormwater
runoff; and (iii) soil characteristics, including the range of soil particle sizes present on the
site;
(6) Provides and maintains natural buffers around surface waters, directs stormwater to
vegetated areas to increase sediment removal, and maximizes stormwater infiltration, unless
infeasible;
(7) Minimizes soil compaction and, unless infeasible, preserves topsoil,
(8) Ensures that stabilization of disturbed areas will be initiated immediately whenever any
clearing, grading, excavating, or other land-disturbing activities have permanently ceased on
any portion of the site, or temporarily ceased on any portion of the site and will not resume for
a period exceeding 14 days; and
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(9) Utilizes outlet structures that withdraw stormwater from the surface (i.e., above the
permanent pool or wet storage water surface elevation), unless infeasible, when discharging
from sediment basins or sediment traps.
3. Stormwater management plan.
a. New construction activities. A stormwater management plan approved by the VSMP authority as
authorized under the Virginia Stormwater Management Program (VSMP) Regulation (9VAC25-
870), or 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 SWPPP.
5. SWPPP requirements for discharges to impaired waters, surface waters with an applicable TMDL
wasteload allocation established and approved prior to the term of this general permit, and
exceptional waters. The SWPPP shall:
a. Identify the impaired water(s), approved TMDL(s), pollutant(s) of concern, and exceptional waters
identified in 9VAC25-260-30 A 3 c, when applicable;
b. Provide clear direction that:
(1) Permanent or temporary soil stabilization shall be applied to denuded areas within seven
days after final grade is reached on any portion of the site;
(2) Nutrients shall be applied in accordance with manufacturer's recommendations or an
approved nutrient management plan and shall not be applied during rainfall events; and
(3) A modified inspection schedule shall be implemented in accordance with Part I B 4 or Part I B
5.
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6 Qualified personnel. The name, phone number, and qualifications of the qualified personnel
conducting inspections required by this general permit.
7. Delegation of authority. The individuals or positions with delegated authority, in accordance with Part
III K, to sign inspection reports or modify the SWPPP.
8. SWPPP signature. The SWPPP shall be signed and dated in accordance with Part III K.
B SWPPP amendments, modification, and updates
1. The operator shall amend the SWPPP whenever there is a change in the design, construction,
operation, or maintenance that has a significant effect on the discharge of pollutants to surface waters
and that has not been previously addressed in the SWPPP.
2. The SWPPP must be amended if, during inspections or investigations by the operator's qualified
personnel, or by local, state, or federal officials, it is determined that the existing control measures are
ineffective in minimizing pollutants in discharges from the construction activity. Revisions to the
SWPPP shall include additional or modified control measures designed and implemented to correct
problems identified. If approval by the VESCP authority, VSMP authority, or department is necessary
for the control measure, revisions to the SWPPP shall be completed no later than seven calendar
days following approval. Implementation of these additional or modified control measures must be
accomplished as described in Part II G.
3 The SWPPP must clearly identify the contractor(s) that will implement and maintain each control
measure identified in the SWPPP The SWPPP shall be amended to identify any new contractor that
will implement and maintain a control measure.
4 The operator shall update the SWPPP no later than seven days following any modification to its
implementation. All modifications or updates to the SWPPP shall be noted and shall include the
following items:
a. A record of dates when.
(1) Major grading activities occur;
(2) Construction activities temporarily or permanently cease on a portion of the site; and
(3) Stabilization measures are initiated;
b. Documentation of replaced or modified controls where periodic inspections or other information
have indicated that the controls have been used inappropriately or incorrectly and where modified
as soon as possible;
c Areas that have reached final stabilization and where no further SWPPP or inspection
requirements apply;
d. All properties that are no longer under the legal control of the operator and the dates on which the
operator no longer had legal control over each property;
e. The date of any prohibited discharges, the discharge volume released, and what actions were
taken to minimize the impact of the release;
f. Measures taken to prevent the reoccurrence of any prohibited discharge; and
g. Measures taken to address any evidence identified as a result of an inspection required under
Part II F.
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5. Amendments, modifications, or updates to the SWPPP shall be signed in accordance with Part III K.
C. Public Notification. Upon commencement of land disturbance, the operator shall post conspicuously a
copy of the notice of coverage letter near the main entrance of the construction activity. For linear
projects, the operator shall post the notice of coverage letter at a publicly accessible location near an
active part of the construction project (e.g., where a pipeline crosses a public road). The operator shall
maintain the posted information until termination of general permit coverage as specified in Part I F.
D. SWPPP availability.
1 Operators with day-to-day operational control over SWPPP implementation shall have a copy of the
SWPPP available at a central location on-site for use by those identified as having responsibilities
under the SWPPP whenever they are on the construction site.
2. The operator shall make the SWPPP and all amendments, modifications, and updates available upon
request to the department, the VSMP authority, the EPA, the VESCP authority, local government
officials, or the operator of a municipal separate storm sewer system receiving discharges from the
construction activity. If an on-site location is unavailable to store the SWPPP when no personnel are
present, notice of the SWPPP's location must be posted near the main entrance of the construction
site.
3. The operator shall make the SWPPP available for public review in an electronic format or in hard
copy. Information for public access to the SWPPP shall be posted and maintained in accordance with
Part II C If not provided electronically, public access to the SWPPP may be arranged upon request at
a time and at a publicly accessible location convenient to the operator or his designee but shall be no
less than once per month and shall be during normal business hours. Information not required to be
contained within the SWPPP by this general permit is not required to be released.
E. SWPPP implementation. The operator shall implement the SWPPP and subsequent amendments,
modifications, and updates from commencement of land disturbance until termination of general permit
coverage as specified in Part I F.
1. All control measures must be properly maintained in effective operating condition in accordance with
good engineering practices and, where applicable, manufacturer specifications If a site inspection
required by Part II F identifies a control measure that is not operating effectively, corrective action(s)
shall be completed as soon as practicable, but no later than seven days after discovery or a longer
period as established by the VSMP authority, to maintain the continued effectiveness of the control
measures.
2. If site inspections required by Part II F identify an existing control measure that needs to be modified
or if an additional control measure is necessary for any reason, implementation shall be completed
prior to the next anticipated measurable storm event. If implementation prior to the next anticipated
measurable storm event is impracticable, then alternative control measures shall be implemented as
soon as practicable, but no later than seven days after discovery or a longer period as established by
the VSMP authority.
F SWPPP Inspections.
1. Personnel responsible for on-site and off-site inspections. Inspections required by this general permit
shall be conducted by the qualified personnel identified by the operator in the SWPPP. The operator
is responsible for insuring that the qualified personnel conduct the inspection.
2. Inspection schedule.
a. Inspections shall be conducted at a frequency of:
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(1) At least once every five business days; or
(2) At least once every 10 business days and no later than 48 hours following a measurable
storm event. In the event that a measurable storm event occurs when there are more than 48
hours between business days, the inspection shall be conducted no later than the next
business day.
b. Where areas have been temporarily stabilized or land-disturbing activities will be suspended due
to continuous frozen ground conditions and stormwater discharges are unlikely, the inspection
frequency may be reduced to once per month. If weather conditions (such as above freezing
temperatures or rain or snow events) make discharges likely, the operator shall immediately
resume the regular inspection frequency.
c Representative inspections may be utilized for utility line installation, pipeline construction, or
other similar linear construction activities provided that:
(1) Temporary or permanent soil stabilization has been installed and vehicle access may
compromise the temporary or permanent soil stabilization and potentially cause additional
land disturbance increasing the potential for erosion;
(2) Inspections occur on the same frequency as other construction activities;
(3) Control measures are inspected along the construction site 0.25 miles above and below each
access point (i e , where a roadway, undisturbed right-of-way, or other similar feature
intersects the construction activity and access does not compromise temporary or permanent
soil stabilization); and
(4) Inspection locations are provided in the report required by Part II F.
3. Inspection requirements.
a As part of the inspection, the qualified personnel shall.
(1) Record the date and time of the inspection and when applicable the date and rainfall amount
of the last measurable storm event;
(2) Record the information and a description of any discharges occurring at the time of the
inspection,
(3) Record any land-disturbing activities that have occurred outside of the approved erosion and
sediment control plan;
(4) Inspect the following for installation in accordance with the approved erosion and sediment
control plan, identification of any maintenance needs, and evaluation of effectiveness in
minimizing sediment discharge, including whether the control has been inappropriately or
incorrectly used:
(a) All perimeter erosion and sediment controls, such as silt fence;
(b) Soil stockpiles, when applicable, and borrow areas for stabilization or sediment trapping
measures;
(c) Completed earthen structures, such as dams, dikes, ditches, and diversions for
stabilization;
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(d) Cut and fill slopes;
(e) Sediment basins and traps, sediment barriers, and other measures installed to control
sediment discharge from stormwater;
(f) Temporary or permanent channel, flume, or other slope drain structures installed to
convey concentrated runoff down cut and fill slopes;
(g) Storm inlets that have been made operational to ensure that sediment laden stormwater
does not enter without first being filtered or similarly treated; and
(h) Construction vehicle access routes that intersect or access paved roads for minimizing
sediment tracking;
(5) Inspect areas that have reached final grade or that will remain dormant for more than 14 days
for initiation of stabilization activities;
(6) Inspect areas that have reached final grade or that will remain dormant for more than 14 days
for completion of stabilization activities within seven days of reaching grade or stopping work;
(7) Inspect for evidence that the approved erosion and sediment control plan, "agreement in lieu
of a plan," or erosion and sediment control plan prepared in accordance with department-
approved annual standards and specifications has not been properly implemented This
includes but is not limited to'
(a) Concentrated flows of stormwater in conveyances such as rills, rivulets or channels that
have not been filtered, settled, or similarly treated prior to discharge, or evidence thereof;
(b) Sediment laden or turbid flows of stormwater that have not been filtered or settled to
remove sediments prior to discharge;
(c) Sediment deposition in areas that drain to unprotected stormwater inlets or catch basins
that discharge to surface waters. Inlets and catch basins with failing sediments controls
due to improper installation, lack of maintenance, or inadequate design are considered
unprotected;
(d) Sediment deposition on any property (including public and private streets) outside of the
construction activity covered by this general permit,
(e) Required stabilization has not been initiated or completed on portions of the site,
(f) Sediment basins without adequate wet or dry storage volume or sediment basins that
allow the discharge of stormwater from below the surface of the wet storage portion of
the basin;
(g) Sediment traps without adequate wet or dry storage or sediment traps that allow the
discharge of stormwater from below the surface of the wet storage portion of the trap;
and
(h) Land disturbance outside of the approved area to be disturbed;
(8) Inspect pollutant generating activities identified in the pollution prevention plan for the proper
implementation, maintenance and effectiveness of the procedures and practices,
(9) Identify any pollutant generating activities not identified in the pollution prevention plan; and
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(10) Identify and document the presence of any evidence of the discharge of pollutants prohibited
by this general permit.
4 Inspection report. Each inspection report shall include the following items:
a. The date and time of the inspection and when applicable, the date and rainfall amount of the last
measurable storm event;
b. Summarized findings of the inspection;
c. The location(s)of prohibited discharges;
d. The location(s)of control measures that require maintenance;
e. The location(s) of control measures that failed to operate as designed or proved inadequate or
inappropriate for a particular location;
f. The location(s)where any evidence identified under Part II F 3 a (7)exists;
g. The location(s) where any additional control measure is needed that did not exist at the time of
inspection;
h. A list of corrective actions required (including any changes to the SWPPP that are necessary) as
a result of the inspection or to maintain permit compliance;
i. Documentation of any corrective actions required from a previous inspection that have not been
implemented; and
j. The date and signature of the qualified personnel and the operator or its duly authorized
representative.
The inspection report and any actions taken in accordance with Part II must be retained by the operator
as part of the SWPPP for at least three years from the date that general permit coverage expires or is
terminated. The inspection report shall identify any incidents of noncompliance. Where an inspection
report does not identify any incidents of noncompliance, the report shall contain a certification that the
construction activity is in compliance with the SWPPP and this general permit. The report shall be signed
in accordance with Part III K of this general permit.
G. Corrective actions.
1. The operator shall implement the corrective action(s) identified as a result of an inspection as soon as
practicable but no later than seven days after discovery or a longer period as approved by the VSMP
authority. If approval of a corrective action by a regulatory authority (e.g., VSMP authority, VESCP
authority, or the department) is necessary, additional control measures shall be implemented to
minimize pollutants in stormwater discharges until such approvals can be obtained.
2. The operator may be required to remove accumulated sediment deposits located outside of the
construction activity covered by this general permit as soon as practicable in order to minimize
environmental impacts. The operator shall notify the VSMP authority and the department as well as
obtain all applicable federal, state, and local authorizations, approvals, and permits prior to the
removal of sediments accumulated in surface waters including wetlands.
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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 SWPPP to include the results of the monitoring as may be performed in
accordance with this general permit, unless another reporting schedule is specified elsewhere in this
general permit.
2. Monitoring results shall be reported on a discharge monitoring report (DMR); on forms provided,
approved or specified by the department; or in any format provided that the date, location, parameter,
method, and result of the monitoring activity are included.
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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 12. 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 11 or 2 in writing
as part of the SWPPP. The reports shall contain the information listed in Part III 12.
NOTE The reports required in Part III G, H and I shall be made to the department and the VSMP
authority. Reports may be made by telephone, email, or by fax. For reports outside normal working hours,
leaving a recorded message shall fulfill the immediate reporting requirement. For emergencies, the
Virginia Department of Emergency Management maintains a 24-hour telephone service at 1-800-468-
8892.
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4. Where the operator becomes aware of a failure to submit any relevant facts, or submittal of incorrect
information in any report, including a registration statement, to the department or the VSMP authority,
the operator shall promptly submit such facts or correct information.
J. Notice of planned changes.
1. The operator shall give notice to the department and the VSMP authority as soon as possible of any
planned physical alterations or additions to the permitted facility or activity. Notice is required only
when:
a. The operator plans an alteration or addition to any building, structure, facility, or installation that
may meet one of the criteria for determining whether a facility is a new source in 9VAC25-870-
420;
b. The operator plans an alteration or addition that would significantly change the nature or increase
the quantity of pollutants discharged. This notification applies to pollutants that are not subject to
effluent limitations in this general permit; or
2. The operator shall give advance notice to the department and VSMP authority of any planned
changes in the permitted facility or activity, which may result in noncompliance with state permit
requirements.
K. Signatory requirements.
1. Registration statement. All registration statements shall be signed as follows:
a. For a corporation. by a responsible corporate officer For the purpose of this chapter, a
responsible corporate officer means: (i) a president, secretary, treasurer, or vice-president of the
corporation in charge of a principal business function, or any other person who performs similar
policy-making or decision-making functions for the corporation; or(ii)the manager of one or more
manufacturing, production, or operating facilities, provided the manager is authorized to make
management decisions that govern the operation of the regulated facility including having the
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 Ill 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
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representative may thus be either a named individual or any individual occupying a named
position); and
c. The signed and dated written authorization is included in the SWPPP A copy must be provided to
the department and VSMP authority, if requested.
3. Changes to authorization. If an authorization under Part III K 2 is no longer accurate because a
different individual or position has responsibility for the overall operation of the construction activity, a
new authorization satisfying the requirements of Part III K 2 shall be submitted to the VSMP authority
as the administering entity for the board prior to or together with any reports or information to be
signed by an authorized representative.
4. Certification. Any person signing a document under Part III K 1 or 2 shall make the following
certification:
"I certify under penalty of law that I have read and understand this document and that this document
and all attachments were prepared in accordance with a system designed to assure that qualified
personnel properly gathered and evaluated the information submitted. Based on my inquiry of the
person or persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate, and
complete. I am aware that there are significant penalties for submitting false information, including the
possibility of fine and imprisonment for knowing violations."
L. Duty to comply. The operator shall comply with all conditions of this general permit. Any state permit
noncompliance constitutes a violation of the Virginia Stormwater Management Act and the Clean Water
Act, except that noncompliance with certain provisions of this general permit may constitute a violation of
the Virginia Stormwater Management Act but not the Clean Water Act. Permit noncompliance is grounds
for enforcement action; for state permit termination, revocation and reissuance, or modification, or denial
of a state permit renewal application.
The operator shall comply with effluent standards or prohibitions established under § 307(a) of the Clean
Water Act for toxic pollutants within the time provided in the regulations that establish these standards or
prohibitions or standards for sewage sludge use or disposal, even if this general permit has not yet been
modified to incorporate the requirement.
M. Duty to reapply. If the operator wishes to continue an activity regulated by this general permit after the
expiration date of this general permit, the operator shall submit a new registration statement at least 90
days before the expiration date of the existing general permit, unless permission for a later date has been
granted by the board. The board shall not grant permission for registration statements to be submitted
later than the expiration date of the existing general permit.
N. Effect of a state permit. This general permit does not convey any property rights in either real or
personal property or any exclusive privileges, nor does it authorize any injury to private property or
invasion of personal rights, or any infringement of federal, state or local law or regulations.
O. State law. Nothing in this general permit shall be construed to preclude the institution of any legal
action under, or relieve the operator from any responsibilities, liabilities, or penalties established pursuant
to any other state law or regulation or under authority preserved by§ 510 of the Clean Water Act. Except
as provided in general permit conditions on "bypassing" (Part III U) and "upset" (Part III V), nothing in this
general permit shall be construed to relieve the operator from civil and criminal penalties for
noncompliance.
P. Oil and hazardous substance liability. Nothing in this general permit shall be construed to preclude the
institution of any legal action or relieve the operator from any responsibilities, liabilities, or penalties to
which the operator is or may be subject under§§ 62.1-44.34.14 through 62 1-44 34:23 of the State Water
Control Law or§ 311 of the Clean Water Act.
General Permit No.: VAR10
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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.
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b. The department may approve an anticipated bypass, after considering its adverse effects, if the
department determines that it will meet the three conditions listed in Part III U 3 a.
V. Upset.
1. An 'upset," as defined in 9VAC25-870-10, means an exceptional incident in which there is
unintentional and temporary noncompliance with technology-based state permit effluent limitations
because of factors beyond the reasonable control of the operator. An upset does not include
noncompliance to the extent caused by operational error, improperly designed treatment facilities,
inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation.
2. An upset constitutes an affirmative defense to an action brought for noncompliance with technology-
based state permit effluent limitations if the requirements of Part III V 4 are met. A determination
made during administrative review of claims that noncompliance was caused by upset, and before an
action for noncompliance, is not a final administrative action subject to judicial review.
3. An upset does not include noncompliance to the extent caused by operational error, improperly
designed treatment facilities, inadequate treatment facilities, lack of preventative maintenance, or
careless or improper operation.
4 An operator who wishes to establish the affirmative defense of upset shall demonstrate, through
properly signed, contemporaneous operating logs or other relevant evidence that.
a. An upset occurred and that the operator can identify the cause(s) of the upset;
b. The permitted facility was at the time being properly operated;
c. The operator submitted notice of the upset as required in Part III I; and
d. The operator complied with any remedial measures required under Part III S
5. In any enforcement proceeding, the operator seeking to establish the occurrence of an upset has the
burden of proof.
W Inspection and entry. The operator shall allow the department as the board's designee, the VSMP
authority, EPA, or an authorized representative of either entity (including an authorized contractor), upon
presentation of credentials and other documents as may be required by law to.
1. Enter upon the operator's premises where a regulated facility or activity is located or conducted, or
where records must be kept under the conditions of this general permit;
2. Have access to and copy, at reasonable times, any records that must be kept under the conditions of
this general permit;
3. Inspect and photograph at reasonable times any facilities, equipment (including monitoring and
control equipment), practices, or operations regulated or required under this general permit; and
4. Sample or monitor at reasonable times, for the purposes of ensuring state permit compliance or as
otherwise authorized by the Clean Water Act or the Virginia Stormwater Management Act, any
substances or parameters at any location
For purposes of this section, the time for inspection shall be deemed reasonable during regular business
hours, and whenever the facility is discharging. Nothing contained herein shall make an inspection
unreasonable during an emergency.
General Permit No.: VAR10
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X. State permit actions. State permits may be modified, revoked and reissued, or terminated for cause.
The filing of a request by the operator for a state permit modification, revocation and reissuance, or
termination, or a notification of planned changes or anticipated noncompliance does not stay any state
permit condition.
Y Transfer of state permits.
1. State permits are not transferable to any person except after notice to the department. Except as
provided in Part III Y 2, a state permit may be transferred by the operator to a new operator only if the
' state permit has been modified or revoked and reissued, or a minor modification made, to identify the
new operator and incorporate such other requirements as may be necessary under the Virginia
Stormwater Management Act and the Clean Water Act.
2 As an alternative to transfers under Part III Y 1, this state permit may be automatically transferred to a
new operator if:
a. The current operator notifies the department at least 30 days in advance of the proposed transfer
of the title to the facility or property;
b. The notice includes a written agreement between the existing and new operators containing a
specific date for transfer of state permit responsibility, coverage, and liability between them, and
c. The department does not notify the existing operator and the proposed new operator of its intent
to modify or revoke and reissue the state permit. If this notice is not received, the transfer is
effective on the date specified in the agreement mentioned in Part III Y 2 b
3 For ongoing construction activity involving a change of operator, the new operator shall accept and
maintain the existing SWPPP, or prepare and implement a new SWPPP prior to taking over
operations at the site
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.