HomeMy WebLinkAboutWPO201700052 VSMP - SWPPP 2021-11-09ALBEMARLE COUNTY
CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN
FOR CONSTRUCTION ACTIVITIES AT:
DUNLORA OVERLOOK
VARICK STREET
CHARLOTTESVILLE, VA 22901
PREPARED BY:
COLLINS ENGINEERING
200 GARRETT STREET, SUITE K
CHARLOTTESVILLE, VA 22902
PREPARED FOR:
RIVERBEND DEVELOPMENT
455 SECOND STREET SE, SUITE 201
CHARLOTTESVILLE, VA 22902
SWPPP PREPARATION DATE: 11/05/2021
PROJECT START DATE: 05/01/2018
PROJECT COMPLETION DATE: 06/01/2022
TABLE OF CONTENTS:
1. REGISTRATION STATEMENT
2. NOTICE OF GENERAL PERMIT COVERAGE
3. NATURE OF ACTIVITY
4. EROSION AND SEDIMENT CONTROL PLAN
5. STORMWATER MANAGEMENT PLAN
6. POLLUTION PREVENTION PLAN
7. IMPAIRED WATERS
8. QUALIFIED PERSONNEL
9. CERTIFICATION
10. DELEGATION OF AUTHORITY
APPENDICES:
A. DEPARTMENT OF ENVIRONMENTAL QUALITY GENERAL PERMIT
B. INSPECTION REPORT
C. CORRECTIVE ACTION FORM
D. POLLUTION PREVENTION TOOLBOX MEETING LOG
E. GRADING AND STABILIZATION ACTIVITES LOG
F. AMENDMENT LOG
SECTION 1
Id:1h1•11MITI IIIs] ►IR2fill IaLVAIA►kI
VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY PERMIT #:
GENERAL VPDES PERMIT FOR DISCHARGES OF STORMWATER FROM PLAN/ID #:
CONSTRUCTION ACTIVITIES (VAR10) TECHNICAL CRITERIA: IIB ❑ IIC ❑
REGISTRATION STATEMENT 2019
Application type. NEW PERMIT ISSUANCE EXISTING PERMIT: VAR10J178
(CHOOSE ONE) �/ MODIFICATION WITH ACREAGE INCREASE
MODIFICATION WITHOUT ACREAGE INCREASE
EXISTING PERMIT RE -ISSUANCE
Section I. Operator/Permittee Information.
A. Construction Activity Operator (Permittee). The person or entity that is applying for permit coverage and will have
operational control over construction activities to ensure compliance with the general permit. A person with
signatory authority for this operator must sign the certification in Section V. (per Part III. K. of the VAR10 Permit).
Operator Name:
DUNLORA INVESTMENTS, LLC
Contact person:
ALAN TAYLOR
Address:
455 SECOND STREET SE, SUITE 201
City, State and Zip Code:
CHARLOTTESVILLE, VA 22902
Phone Number:
434-245-4970
Primary and CC Email:
aIan@riverbenddev.com
B. Electronic correspondence. To receive an emailed coverage letter or to pay by credit card, you must choose YES
and include a valid email. May we transmit correspondence electronically? YES V/ NO
Section II. Construction Activity Information.
A.
Include a site map showing the location of the existing or proposed land -disturbing activities, the limits of land
disturbance, construction entrances and all waterbodies receiving stormwater discharges from the site.
B.
Project site location information.
Construction Activity Name:
DUNLORA OVERLOOK
Address:
VARICK STREET
City and/or County and Zip Code:
CHARLOTTESVILLE, VA 22901
Construction Activity Entrance Location
(description, street address and/or
VARICK STREET
latitude/longitude in decimal degrees):
Latitude and Longitude
38.061327,-78.461603
(6-digit, decimal degrees format):
C.
Acreage totals for all land -disturbing activities to be included under this permit coverage. Report to the nearest
one -hundredth of an acre.
Total land area of development (include entire area to be
8.62 AC
disturbed as approved in the Stormwater Management Plan):
Primary estimated area to be disturbed (include portions with
Erosion and Sediment Control Plan approval only):
7 53 AC
Off -site estimated area to be disturbed (if applicable):
0.00 AC
D.
Property Owner Status:
FEDERALFISTATEI
IPUBLICIPRIVATE
,'
E.
Nature of the Construction Activity Description (i.e. commercial,
RESIDENTIAL
industrial, residential, agricultural, environmental, utility):
F.
Municipal Separate Storm Sewer System (MS4) name(s) (if the
site is discharging to a MS4):
ALBEMARLE COUNTY
G.
Estimated Project Dates (MM/DD/YYYY).
Start Date:
05/01/2018
Completion Date:
06/01/2022
H.
Is this construction activity part of a larger common plan of
YES ❑✓ NO ❑
development or sale?
Rev 11/2020 PAGE 1 16
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019
I. 6" Order Hydrologic Unit Code (HUC) and Receiving Water Name(s). Include additional areas on a separate page.
HUC
NAME(S) OF RECEIVING WATERBODY
020802040401
MEADOW CREEK
Section III. Off -site Support Activity Location Information.
List all off -site support activities and excavated material disposal areas being utilized for this project. Include additional
areas on a separate page.
Off -site Activity Name:
Address:
City or County:
Off -site Activity Entrance Location (description, street
address and/or latitude/longitude in decimal degrees):
Latitude and Longitude (6-digit, decimal degrees format):
Is this off -site activity an excavated material disposal
area?
YES NO
If this off -site activity is an excavated material disposal
area, list the contents of the excavated fill material:
Willa separate VPDES permit cover this off -site activity?
YESI
INOI
Section IV. Other Information.
A.
A stormwater pollution prevention plan (SWPPP) must be prepared in accordance with the requirements of the
General VPDES Permit for Discharges of Stormwater from Construction Activities prior to submitting the
Registration Statement. By signing the Registration Statement, the operator is certifying that the SWPPP has been
prepared.
B.
Has an Erosion and Sediment Control Plan been
submitted to the VESC Authority for review?
YES ,/ 1 NO
Erosion and Sediment Control Plan Approval Date (for
the estimated area to be disturbed MM/DD/YYYY):
C.
Has land -disturbance commenced?
YES
Z NO
D.
Annual Standards and Specifications. If this project is utilizing approved Annual Standards and Specifications
(AS&S), attached the completed AS&S Entity Form.
AS&S Entity Name (if different from the Operator
identified in Section I):
E.
Billing information (leave blank if same as the Operator identified in Section I. above). This entity will receive
Annual Permit Maintenance and Permit Modification Fee invoices (if applicable).
Billing Name:
Contact Name:
Address:
City, State and Zip Code:
Phone Number:
Primary and CC Email:
Rev 11/2020 PAGE 2 16
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019
Section V. Certification. A person representing the operator as identified in Section I. A. and meeting the requirements
of 9VAC25-880-70. Part III. K must physically sign this certification. Atyped signature is not acceptable. Please note that
operator is defined in 9VAC25-870-10 as follows:
"Operator" means the owner or operator of any facility ar activity subject to the Act and this chapter. In the context of stormwater
associated with a large or small construction activity, operator means any person associated with a construction project that meets
either of the following two criteria: (i) the person has direct operational control aver construction plans and specifications, including
the ability to make modifications to those plans and specifications or (ii) the person has day-to-day operational control of those
activities at a project that are necessary to ensure compliance with a storm water pollution prevention plan for the site or other state
permit or VSMP authority permit conditions (Le., they are authorized to direct workers at a site to carry out activities required by the
storm water pollution prevention plan or comply with other permit conditions). In the can text of storm water discharges from
Municipal Separate Storm Sewer Systems (MS4s), operator means the operator of the regulated MS4 system.
9VAC25-880-70. Part III. K. Signatory Requirements. Registration Statement. All Registration Statements shall be signed as follows:
a. For a corporation: by a responsible corporate officer. For the purpose of this chapter, a responsible corporate officer
means: (i) a president secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or
any other person who performs similar policy -making or decision -making functions 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.
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: ALAN TAYLOR
Signature (signed in ink):
Date Signed: 11/5/2021
Section VI. Submittal Instructions. Submit this form to the VSMP Authority. If the locality is the VSMP Authority, please
send your Registration Statement submittal directly to the locality; do NOT send this form to DEQ. A list of local VSMP
Authorities is available here: VSMP Authorities.
If DEQ is the VSMP Authority, please send to: If the locality is the VSMP Authority, please send to:
Department of Environmental Quality
Office of Stormwater Management Suite 1400
PO Box 1105
Richmond VA 23218
constructiongp@deg.virginia.gov
Rev 11/2020 PAGE 3 16
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 INSTRUCTIONS
PLEASE DO NOT PRINT OR SUBMIT
This Registration Statement is for coverage under the General VPDES Permit for Discharges of Stormwater from Construction Activities. This form
covers the following permit actions: new permit issuance, existing permit modification with an increase in acreage, existing permit modifications
that result in a plan modification but do not result in an increase in disturbed acreage, and reissuance of an active permit coverage.
Application type. Select NEW PERMIT ISSUANCE to obtain a new permit coverage. Modifications are for modifying an existing, active permit
coverage. Select MODIFICATION WITH ACREAGE INCREASE when the previously approved acreage(s) increases (permit modifications are not
performed for decreases in acreage unless they result in plan changes — see Modification WITHOUT Acreage Increase). Select MODIFICATION
WITHOUT ACREAGE INCREASE when there is a change to the site design resulting in a change to the approved plans with no increase in acreage(s),
Select EXISTING PERMIT REISSUANCE to extend an expiring permit coverage for the next permit cycle and include the existing permit number.
Section I. Operator/Permittee Information.
A. Construction Activity Operator (Permittee). The person or entity that is applying for permit coverage and will have operational control over
construction activities to ensure compliance with the general permit. For companies, use the complete, active, legal entity name as registered with
a state corporation commission. Entities that are considered operators commonly consist of the property owner, developer of a project (the party
with control of project plans and specifications), or general contractor (the party with day-to-day operational control of the activities at the project
site that are necessary to ensure compliance with the general permit). If an individual person is listed as the operator, that person (or a legal
representative of) must sign the certification in Section V. An operator may be one of the following:
9VAC25-870-10. Definitions
"Operator" means the owner or operator of any facility or activity subject to the Act and this chapter. In the context of stormwater associated with a
large or small construction activity, operator means any person associated with a construction project that meets either of the following two
criteria: (i) the person has direct operational control over construction plans and specifications, including the ability to make modifications to those
plans and specifications or (ii) the person has day-to-day operational control of those activities at a project that are necessary to ensure compliance
with a stormwater pollution prevention plan for the site or other state permit or VSMP authority permit conditions (i.e., they are authorized to direct
workers at a site to carry out activities required by the storm water pollution prevention plan or comply with other permit conditions). In the context
of stormwater discharges from Municipal Separate Storm Sewer Systems (M54s), operator means the operator of the regulated M54 system.
"Owner" means the Commonwealth or any of its political subdivisions including, but not limited to, sanitation district commissions and authorities,
and any public or private institution, corporation, association, firm or company organized or existing under the laws of this or any other state or
country, or any officer or agency of the United States, or any person or group of persons acting individually or as a group that owns, operates,
charters, rents, or otherwise exercises control over or is responsible for any actual or potential discharge of sewage, industrial wastes, or other
wastes or pollutants to state waters, or any facility or operation that has the capability to alter the physical, chemical, or biological properties of
state waters in contravention of § 62.1-44.5 of the Code of Virginia, the Act and this chapter.
"Person "means any individual, corporation, partnership, association, state, municipality, commission, or political subdivision of a state,
governmental body, including a federal, state, or local entity as applicable, any interstate body or any other legal entity.
B. May we transmit correspondence electronically? If you choose YES to this question and provide an email address in Section I. A., all
correspondence, forms, invoices and notifications will be transmitted by email to the operator. This will also give the operator the ability to pay by
credit card and to receive Dermit coverage aooroval letters immediately upon Dermit aooroval.
Section II. Construction Activity Information.
A. A site map indicating the location of the existing or proposed land -disturbing activities, the limits of land disturbance, construction entrances
and all water bodies receiving stormwater discharges from the site must be included with the submittal of this form. Aerial imagery maps or
topographic maps showing the required items are acceptable. Plan sheet sized site maps are not required. Please consult your VSMP authority if
you have additional questions regarding site map requirements.
B. Construction Activity Name and location. Provide a descriptive project name (it is helpful to use the same naming convention as listed on the
Stormwater Management plans), 911 street address (if available), city/county of the construction activity, and the 6-digit latitude and longitude in
decimal degrees format for the centroid, main construction entrance or start and end points for linear projects (i.e. 37.1234N/-77.1234W).
C. Acreage totals for all land -disturbing activities, on- and off -site, to be included under this permit. Acreages are to be reported to the nearest
one -hundredth acre (two decimal places; i.e. 1.15 acres). Provide the total acreage of the primary development site as approved on the
Stormwater Management Plans and the primary on -site estimated acreage to be disturbed by the construction activity as approved under the
Erosion and Sediment Control Plans. The off -site estimated area to be disturbed is the sum of the disturbed acreages for all off -site support
activities to be covered under this general permit. Do not include the off -site acreage totals in the primary, on -site total and estimated disturbed
acreage totals. Permit fees are calculated based on your disturbed acreage total for all on- and off -site areas being disturbed under this permit
coverage (the sum of all on -site and off -site disturbed acreages).
D. Property owner status. The status of the construction activity property owner. Any property not owned by a government entity or agency (i.e.
federal, state or local governments) is PRIVATE.
Rev 11/2020 PAGE 4 16
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 INSTRUCTIONS
PLEASE DO NOT PRINT OR SUBMIT
E. Nature of the construction activity description. Choose the designation that best describes the post -construction use of this project (you may
choose more than one). (i.e. Residential, Commercial, Industrial, Agricultural, Environmental, Educational, Oil and Gas, Utility, Transportation,
Institutional, etc.). Describe the post -construction use of the project (i.e. Commercial —one new office building and associated parking and
utilities; Transportation — Linear roads, sidewalks and utilities; Agricultural-3 Poultry Houses, etc.).
F. Municipal Separate Storm Sewer System (MS4) name(s) if discharging to a MS4. If stormwater is discharged through a MS4 (either partially or
completely), provide the name of the MS4(s) that will be receiving water from this construction activity. The MS4 name is typically the town, city,
county, institute or federal facility where the construction activity is located.
G. Estimated project dates. Provide the estimated project start date and completion date in Month/Day/Year or MM/DD/YYYY format (i.e.
07/30/2019).
H. Is this construction activity is part of a larger common plan of development or sale? "Common plan of development or sale" means a contiguous
area where separate and distinct construction activities may be taking place at different times on different schedules per 9VAC25-870-50.
Definitions. Le. a subdivision, commercial development, business park, etc.
I. 6th Order Hydrologic Unit Code (HUC) and associated Receiving Water Name(s). Provide all 6th order HUCs and receiving waterbody names, for
the primary site and any Off -site areas included under this permit coverage, that could potentially receive stormwater runoff discharging from this
activity. The HUC can be either a 12-digit number (i.e. 0208010101) or 2-letter, 2-number code (i.e. JL52). Include additional HUCs or receiving
waters on a separate page. You may utilize DEO's web -based GIS application, VEGIS, to obtain this information.
• VEGIS application link: DEO's VEGIS Mapping Application
• Instructions for utilizing DEQ's VEGIS application link: CGP-GIS HUC Instructions
Section III. Off -site Support Activity Location Information.
This general permit also authorizes stormwater discharges from support activities (e.g., concrete or asphalt batch plants, equipment staging yards,
material storage areas, excavated material disposal areas, borrow areas) located on -site or off -site provided that (i) the support activity is directly
related to a construction activity that is required to have general permit coverage; (ii) the support activity is not a commercial operation, nor does
it serve multiple unrelated construction activities by different operators; (III) the support activity does not operate beyond the completion of the
construction activity it supports; (iv) the support activity is identified in the Registration Statement at the time of general permit coverage; (v)
appropriate control measures are identified in a SWPPP and implemented to address the discharges from the support activity areas; and (vi) all
applicable state, federal, and local approvals are obtained for the support activity.
Off -site activity name and location information. Provide a descriptive off -site project name, 911 street address (if available), construction entrance
location (address or decimal degrees coordinates and description), city/county and the 6-digit latitude and longitude in decimal degrees (i.e.
37.1234N, 77.1234W) of all off -site support activities. Indicate whether the off -site support activity will be covered under this general permit or a
separate VPDES permit.
If excavated material (i.e., fill) will be transported off -site for disposal, the name and physical location address, when available, of all off -site
excavated material disposal areas including city or county; 6-digit latitude and longitude in decimal degrees (i.e. 37.1234N, 77.1234W) and the
contents of the excavated material.
List additional off -site areas to be included under this permit coverage on a separate page. Off -site areas not included on this registration will need
to obtain coverage under a separate VPDES permit.
Section IV. Other Information.
A. A stormwater pollution prevention plan (SWPPP) must be prepared prior to submitting the Registration Statement per 9VAC25-880. See
9VAC25-880-70. Part II. of the General Permit for the SWPPP requirements.
B. If the Erosion and Sediment Control Plan for the estimated area to be disturbed listed in Section II. C. has been submitted to the VESC Authority
for review and plan approval, choose YES. If you are submitting this application to reissue an existing permit coverage, please provide the date that
the VESC Authority approved the Erosion and Sediment Control Plan for the estimated area to be disturbed.
C. If land disturbance has commenced, choose YES. "Land disturbance" or "land -disturbing activity" means a man-made change to the land surface
that may result in soil erosion or has the potential to change its runoff characteristics, including construction activity such as the clearing, grading,
excavating, or filling of land per §62.1-44.15:24. Definitions.
O. If this project is using approved Annual Standards and Specifications (AS&S), attach the completed AS&S Entity Form.
If the AS&S Entity is different from the operator identified in Section I. A., list the AS&S Entity Name. The AS&S entity is the entity or agency that
holds the approved annual standards & specification. Please indicate if this project is also requesting a plan waiver.
• AS&S Entity Form link: Annual Standards and Specifications Entity Information Form
Rev 11/2020 PAGE 5 16
CONSTRUCTION GENERAL PERMIT (VAR10) REGISTRATION STATEMENT 2019 INSTRUCTIONS
PLEASE DO NOT PRINT OR SUBMIT
E. Billing information. If the person or entity responsible for billing/invoicing is different from the operator, please complete this section. If they
are the same, leave this section blank.
Section V. Certification.
A properly authorized individual associated with the operator identified in Section I. A. of the Registration Statement is responsible for certifying
and signing the Registration Statement. A person must physically sign the certification, a typed signature is unacceptable. State statutes provide
for severe penalties for submitting false information on the Registration Statement. State regulations require that the Registration Statement be
signed as follows per 9VAC25-880-70 Part III. K. 1.:
a. For a corporation: by a responsible corporate officer. For the purpose of this part a responsible corporate officer means:
(i) A president secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who
performs similar policy -making or decision -making functions for the corporation, or
(if) the manager of one or more manufacturing, production, or operating facilities, provided the manager is authorized to make
management decisions that govern the operation of the regulated facility including having the explicit or implicit duty of making major
capital investment recommendations, and initiating and directing other comprehensive measures to assure long-term compliance with
environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather
complete and accurate information for permit application requirements; and where authority to sign documents has been assigned or
delegated to the manager in accordance with corporate procedures.
b. For a partnership or sole proprietorship: by a general partner or the proprietor, respectively.
c. For a municipality, state, federal, or other public agency: by either a principal executive officer or ranking elected official. For purposes of this part
a principal executive officer of a public agency includes:
(i) The chief executive officer of the agency, or
(if) A senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency.
Section VI. Submittal Instructions.
Submit this form to the VSMP Authority that has jurisdiction for your construction activity. The VSMP Authority maybe either DEQ or your locality
depending on the location and type of project. If your project is under the jurisdiction of a Local VSMP Authority, please contact the locality for
additional submittal instructions. A blank area is provided for the Local VSMP Authority's mailing address.
Who is the VSMP Authority for my oroiect? DEQ or the locality?
• DEQ: DEQ is the VSMP Authority and administers permit coverage for land -disturbing activities that are:
➢ within a locality that is not a VSMP Authority;
➢ owned by the State or Federal government; or
➢ utilizing approved Annual Standards and Specifications.
• The Locality: The local government (locality) is the VSMP Authority and administers permit coverage for all other projects not covered by DEQ
as listed above. For these projects, please submit permit forms directly to the Local VSMP Authority. A list of Local VSMP Authorities is
available on DEQ's website here: Local VSMP Authority List.
www.d eg.virginia.gov/Progra mslwater/StormwaterMa nageme nt/VSM PPe rm its/ConstructionG en era I Perm it.aspx
Email the completed and signed form to:
con structiongp@deg.virginia.gov
Rev 11/2020 PAGE 6 16
SECTION 2
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SECTION 3
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NATURE OF ACTIVITY
PROJECT NAME: DUNLORA OVERLOOK
PROJECT LOCATION: VARICKSTREET
PROJECT DESCRIPTION:
THE PURPOSE OF THIS LAND -DISTURBING ACTIVITY IS TO GRADE THE SITE FOR THE DEVELOPMENT OF
DUNLORA. THE TOTAL ACREAGE TO BE DISTURBED WITH THIS PLAN IS 7.S3 ACRES.
EXISTING SITE CONDITIONS:
THE EXISTING SITE IS A WOODED, SLOPING PARCEL WITH AN EXISTING RESIDENCE AND OUTBUILDINGS.
THE SITE IS GENERALLY WELL DRAINED WITH PRESERVED AND MANAGED STEEP SLOPES. EROSION
AND SEDIMENT CONTROL MEASURES HAVE BEEN DESIGNED TO CONFORM TO THE EXISTING SITE
SLOPE AND PROTECT THE PERIMETER STREAMS AND ADJACENT PROPERTIES.
ADJACENT AREAS:
THE SITE IS BOUNDED TO THE WEST BY DUNLORA DRIVE AND TO THE SOUTH BY RIO ROAD EAST. IT IS
BORDERED BY RESIDENTIAL LAND AND TWO CREEKS TO THE NORTH AND EAST.
OFFSITE LAND DISTURBANCE:
NO OFF -SITE LAND DISTURBANCE IS PROPOSED.
CRITICAL AREAS:
MANAGED STEEP SLOPES TO BE IMPACTED. STREAMS AND BUFFERS TO BE PROTECTED.
WOODLAND/OPEN SPACE PRESERVATION AREAS TO BE MAINTAINED AND PROTECTED WITH TREE
PROTECTION FENCING.
SOILS:
2C- ALBEMARLEFINE SANDY LOAM -7%TO15%SLOPES.
SOIL CONSISTS OF DEEP, WELL DRAINED SOILS. SURFACE RUNOFF IS MEDIUM TO LOW WITH
MODERATELY HIGH PERMEABILITY. HYDROLOGIC SOIL GROUP'C'.
21B- CULPEPERFINE SANDY LOAM -2%TO7%SLOPES.
SOIL IS DEEP, WELL -DRAINED WITH MODERATE PERMEABILITY. FORMED IN RESIDUUM
WEATHERED FROM META-ARKOSICSANDSTONE. HYDROLOGIC SOILGROUP'B'.
39D - HAZEL LOAM - 15% TO 25% SLOPES.
SOIL IS DEEP, WELL -DRAINED WITH MODERATE PERMEABILITY. FORMED IN RESIDUUM
WEATHERED FROM GREYWACKE SANDSTONE. HYDROLOGIC SOILGROUP'B'.
SEQUENCE OF CONSTRUCTION:
1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED.
2. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS
WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT.
3. CONTRACTOR SHALL IDENTIFY THE LIMITS OF DISTURBANCE AND INSTALL TREE PROTECTION
FENCING WHERE INDICATED ON THE PLANS BEFORE ANY SITE DISTURBANCE SHALL TAKE
PLACE. CONTRACTOR SHALL ENSURE THATTREES TO BE SAVED ARE FLAGGED ALONG THE
LIMITS OF CLEARING AND PROTECTED.
4. INSTALL THE PAVED CONSTRUCTION ENTRANCE WITH WASH RACK AS SHOWN ON THE PLANS.
CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE ROUTES
INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT
OF SEDIMENT BY (VEHICULAR) TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS
TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED THOROUGHLY
AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING
OR SWEEPING AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET
WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. INSTALL
THE WASH RACK UPHILL FROM THE PROPOSED SEDIMENT BASIN. ACSA WILL DETERMINE THE
APPROPRIATE METHOD OF SUPPLYING THE WASH RACK. PARKING AND CONSTRUCTION
ENTRANCE AREAS SHALL BE CLEARED OF ALL VEGETATION, ROOTS, OR OTHER OBJECTIONABLE
MATERIALS BEFORE CONSTRUCTION ROAD STABILIZATION IS INSTALLED.
5. CONTRACTOR DOES NOT HAVE PERMISSION TO CLEAR CUT THE SITE PRIOR TO INSTALLING THE
PERIMETER MEASURES AS SHOWN ON THE E&S PLAN. CONTRACTOR SHALL EXPEDITE
INSTALLATION OF THE PERIMETER EROSION AND SEDIMENT CONTROL MEASURES AND
PROTECT THE SITE WITH THE LEAST AMOUNT OF TREE REMOVAL NECESSARY TO INSTALL
THESE MEASURES. INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE PHASE
I EROSION CONTROL PLAN SHEETS. THIS INCLUDES THE SEDIMENT TRAPS, THE SEDIMENT
BASIN, SILT FENCE, AND DIVERSION BERMS. STABILIZATION MEASURES SHALL BE APPLIED TO
EARTHEN STRUCTURES SUCH AS DAMS, BERMS, AND DIVERSIONS IMMEDIATELY AFTER
INSTALLATION. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST
STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE
UPSLOPE LAND DISTURBANCE TAKES PLACE.
6. INSTALL ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THE PHASE I EROSION
CONTROL PLAN.
7. ONCE ALLTHE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE PHASE I
EROSION CONTROL PLAN AND THE INSPECTOR HAS APPROVED THE EROSION CONTROL
MEASURES, THE CONTRACTOR CAN BEGIN GRADING OPERATIONS.
8. ROUGH GRADE THE SITE TO THE CONTOURS SHOWN ON THE PHASE II EROSION CONTROL
PLAN AND INSTALL THE PROPOSED STORM PIPE ADJACENT TO DUNLORA DRIVE WITH INLET
AND OUTLET PROTECTION.
9. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS
WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE.
TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS
THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR
LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE
TO BE LEFT DORMANT FOR MORE THAN ONE YEAR.
10. INSTALL PHASE III CONTROLS. SEE SHEET 5A FOR A MORE DETAILED SEQUENCE OF
CONSTRUCTION FOR PHASE II OF THIS DEVELOPMENT (LOTS 29-34 & ITS INFRASTRUCTURE).
11. ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR
CAN CONVERT THE SEDIMENT BASIN AND SEDIMENT TRAP 1 INTO PERMANENT STORMWATER
MANAGEMENT FACILITIES. AT THIS TIME THE REMAINING PORTION OF THE DRAINS, ALLEY AND
LOTS 33 & 34'S DRIVEWAYS MAY BE INSTALLED. NO E&S ITEM SHALL BE REMOVED UNLESS THE
UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES PERMISSION.
12. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND
SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL
PROGRAM ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT
CONTROL HANDBOOK.
13. ALLTEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN
30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO
LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM
ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE
DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT
FURTHER EROSION AND SEDIMENTATION.
APPROVED VDOT EC-1 CLASS Ai RIPRAP/
W/FILTER FABRIC OUTLET PROTECTION
Q30=0.53 CFS
Vio 2.61 FP
LS;Di.4'
W1=3x1.25' 3.75'
IOHOUTAREA
WASRACK
.
I I �*A**
.O TP, ��_\ _ PROPERTY LINE (TYP.
C I AP VIED ' TP
12'x70 MIN. l�ST2
� 41#40■■■••• o owns
CIP
LOCATION OF /
FUELING AREA �♦ / - \ I L \
LOCATION OF
LOCATION OF PORT -A -POTTY ♦� / T i r
DUMPSTER /
♦ 2
i FLOW
�,-� ♦\DIREC
6— TYPE
q.
21B s
I I SOIL
I s
1 -TYP E
� d
39 p
\� PHAS
CE _
�i2'x70' MIN." . SB 1 s \
IP Area=5.31. ac.
Cw=Q.35
■ -CONTRACTOR SHALL INSTA L OUNTABLE♦ /
■ ■ ■ / \ D RIGHT-OF-WAY D VVERSION W THE ♦ e P - TC=1 .2 MIN. /
R �Fi /
1 I \ CONSTRUCTION OF PHASE OFT \\J / J
DEVELOPMENT. THE MOUKTA E DIµE`RSSION / �((( /
C S • BERMSHALLBE RESTORED ATTH ND F \
\ EACH DAY& PRIORE}WEATHER.EVE T\\ IP
® COLLINS ENGINEERING SWPPP EXHIBIT - POLLUTION PREVENTION PLAN - PHASE I
DATE: 11/5/21
200 GARRETT STREET SUITE K CHARLOTTESVILLE, VIRGINA 22902 OFFICE: 434-293-3729 SCALE: i'=30'
APPROVED VDOT EC-2 CLASS Ai RIPRAP
W/FILTER FABRIC OUTLET PROTECTION
010=0.53 CFS
V2o=2.6i FPS
L=5'; D=2 y'
W2=3xi.25'=3.75'
W2=S'+1.2S'=6.2S'
PROPOSED
CONTRACT(
POSITIVE SLI
18" BERM
SHALLBE
FIRST STEP IN DISTURBANCES
•
Lw
ASH RACK
•��ir.��•rki � �.
•. • .yam
I
I`� ,. �sY. ,�� �r ice• �i.��.�����
PROPERTY LINE (TYP.)-
� 1 �
i I I
/ \ RIGHT-OF-WAY
SHALL INSTALL"OUNTABLE \ \\ r 'l i^.�� ii `N
R DCONSTRUCTION
D VLERSI NTH TH \� ea=5.31 ac. / 7
CONSTRUCTION OF E II OFT
-DEVELOPMENT. THE MOU A E DI RSION Cw=o.65
BERM SMALL -BE RESTORED AT TH E`END F \ /
( _ EACHDAY&PRIOR WEATHEREVETIT�� A� �.- IP TC=1o.8 MIN
���
® COLLINS ENGINEERING SWPPP EXHIBIT - POLLUTION PREVENTION PLAN - PHASE II
DATE: 11/5/21
200 GARRETT STREET SUITE K CHARLOTTESV ILLE, VIRGINA 22902 OFFICE: 4342933729 SCALE: i"=30'
I CONCRETE WASH
OUTAREA o�����y
IWASH RACK 1 . P ��_ PROPERTY LINE (TYP.
IC I APPROVED TP
12'x7o MIN. STz
Ilp
CIP \ \
CATION OF
°i FUELING AREA - \
°. LOCATION OF \
LOCATION OF PORT -A -POTTY
UMPSTER
6—� N Z
. \ DC
LOT z9 S
LOT 30 \
LOT 33 \
°
IF
IP oa � 6
/y
,e
e
y
12'x7O' MINA A
— IP '
i :fin J .
� e
r IP / ONCE THE BULK OF THE ALLEY IS AT ROUGH GRADE, THE CONTRACTOR
SHALL INSTALL THE PROPOSED STORM SEWER & CURB. THE CURB -/
•. INSTALLATION SHALL TERMINATE AT SEDIMENT TRAP #1's 2:1 TIE-IN GRADES. APPROVED
\ . INSTALLING THE CURB IN THIS MANNER WILL ALLOW IT TO FUNCTION AS A IP PHASE III
DIVERSION, DIRECTING UPLAND RUNOFF INTO THE TRAP. ALSO, THE
G S
NZ PROPOSED PHASE II DROP INLET AND YARD INLETS SHALL REMAIN BLOCKED / Area= 08 ac.
I / • DURING CONSTRUCTION TO ENSURE SEDIMENT IS DIRECTED INTOTRAP#i.
® COLLINS ENGINEERING SWPPP EXHIBIT - POLLUTION PREVENTION PLAN - PHASE III
DATE: 11/5/21
200 GARRETT STREET SUITE K CHARLOTTESVILLE, VIRGINA 22902 OFFICE: 434-293-3729 SCALE: i'=30'
SECTION 4
Ia:Z61.1 Is] ►I_1►IIMa011Al1aLlk11 Lol►kI:1614»_1►I
Blackburn ,•e_
rHa►aJ 014f,rAVA11011M)
OWNER/APPLICANT.• 06100-00-00-165RO
DUNLORA INVESTMENTS, LLC
455 SECOND ST SE, SUITE 400
CHARLOTTESWLLE, VA 22902
ENGINEER. COLLINS ENGINEERING
200 GARRETT ST, SUITE K
CHARLOTTESVILLE, VA 22902
(434)293-3719
TAX MAP NO.: 06100-00-00-165RO (OB 4967 PG 169)
TOTAL PROJECT AREA: 8.62 ACRES TOTAL (PHASE I = 7.60 AC,PHASE ll = 1.02 AC)
ZONING: R-4 RESIDEN77AL (BY -RIGHT) - NO PROFFERS
AIRPORT IMPACT AREA (AIA)
PROPOSED USE: PHASE l -
16 SINGLE FAMILY ATTACHED UNITS AND
12 SINGLE FAMILY DETACHED UNITS
PHASE ll - 3 TOWNHOUSES & 3 SINGLE FAMILY DETACHED HOUSES
REQUIRED DENSITY: 4 DU/AC CLUSTER DEVELOPMENT
(NO MINIMUM LOT SIZE)
PROPOSED DENSITY: PHASE l - 28 UNITS
PHASE ll - 6 UNITS
TOTAL - 34 DU/8.62 AC = 3.94 UNITS/AC
OPEN SPACE.• REQ. 2.16 AC OF DEVELOPMENT AREA (25%);
PROV.• OPEN SPACE A (0.05 AC) + OPEN
SPACE B (2.55 AC) = 2.60 AC (30.2%)
0.98 AC OUTSIDE CRITICAL SLOPES AND SWM (38% OF TOTAL)
THE OPEN SPACE WILL BE DEDICATED TO THE HOA FOR PUBLIC USE
BUILDING HEIGHTS. MAXIMUM BUILDING HEIGHTS SHALL NOT EXCEED 35'
NON-INFILL SETBACKS: FRONT. 5' MIN AND 25' MAX
SIDE: 10' BUILDING SEPARATION
REAR: 20' MIN AND NO MAX
SUBDIVISION STREETS: PHASE l - CURB & GUTTER (PARKING ON ONE SIDE ONLY)
PHASE 11 - UNITS FRONTING RIO ROAD & DUNLORA DRIVE WITH
PRIVATE ACCESS ALLEY FROM VARICK STREET
WATERSHED: THIS PARCEL IS NOT IN A WATER SUPPLY PROTECTED AREA -
SITE DRAINS TO MEADOW CREEK.
AGRICULTURAL/ FORESTAL DISTRICT.• NONE
TOPO & SURVEY. TOPOGRAPHY AND BOUNDARY INFORMA77ON PROVIDED WITH
ON -GROUND SURVEY BY CARDINAL SURVEY IN SEPTEMBER 2016.
NOTE: TOPOGRAPHY HAS BEEN UPDATED FOR PHASE I LAND
DISTURBANCE. TOPO VISUALLY FIELD VERIFIED IN AUGUST, 2021.
DATUM: NAD 83
EXISTING VEGETA770N. PAR77ALLY WOODED WITH EXISTING RESIDENCE STRUCTURES
LIGHTING` NO LIGH77NG IS PROPOSED
PHASING. THIS PLAN IS PHASE ll OF DUNLORA PARK (WINTER OF 2021)
RECREATION: 2.60 ACRES OPEN SPACE (PASSIVE RECREA7ON AREA)
PARKING PHASE ll: 2 OFF-STREET PARKING SPACES SHALL BE PROVIDED FOR
EACH DWELLING UNIT + 1 SPACE PER (4) UNITS FOR GUEST
PARKING:
TOTAL PARKING REQUIRED:
12 SPACES ON THE LOTS + (1) GUEST SPACES
TOTAL PARKING PROVIDED:
12 SPACES ON THE LOTS + (1) GUEST SPACES
BUILDING SITES PARCELS 1-34 MAY NOT BE FURTHER DIVIDED. ONLY (1) DWELLING
UNIT PER LOT SHALL BE ALLOWED.
BURIAL SITES: NONE
STREAM BUFFERS/FLOODPLAIN: THERE IS A POR77ON OF A WPO 57REAM BUFFER LOCATED AT
THE SOUTHEAST CORNER OF THE SITE. THERE IS NO 100-YEAR
FLOODPLAIN LIMITS ON THE SUBJECT PARCEL, PER FEMA MAP
51003CO2290; FEBRUARY 4, 2005.
OFFSIDE DISTURBANCE: NO OFFSIDE DISTURBANCE IS PROPOSED WITH THIS PLAN, EXCEPT
FOR THE TIE-IN CONNECT70N TO THE SANITARY SEWER
WITHIN EXISTING UTILITY EASEMENT
LANDSCAPING STREET TREES ARE PROPOSED ALONG THE NEIGHBORHOOD STREETS
IN ACCORDANCE WITH ALBEMARLE COUNTY LANDSCAPING
REQUIREMENTS
LAND AREAS: OPEN SPACE: 2.60 AC. (30%)
LOTS 4.86 AC. (567)
ROW/ACCESS ESMT DEDICA770N. 1.16 AC. (147.)
IMPERVIOUS AREA:
ROADWAY= 29,600 (PHASE l) + 6,974 (PHASE ll) = 36,574 SF (0.84 AC)
SIDEWALK/DRIVEWAYS= 21,188 (PHASE l) + 1,267 (PHASE II) = 22,455 SF (0.52 AC)
BUILDINGS= 63,700 (PHASE l) + 7,955 (PHASE ll) = 71,655 SF (1.64 AC)
ITE TRIP GENERATION: TRAFFIC IMPACT NUMBERS ARE BASED ON THE ITE TRIP GENERATION
MANUAL, 8TH EDITION.
PHASE I:
CODES 210 WERE USED FOR THE DEVELOPMENT
PROPOSED 28 DWELLING UNITS
ADT RATE - 268 ADT (134 ENTER/134 EXIT)
AM PEAK RATE - 21 VPH (5 ENTER/16 EXIT)
PM PEAK RATE - 28 VPH (18 ENTER/10 EXIT)
PHASE //.
CODES 230 & 210 WERE USED FOR THE DEVELOPMENT
PROPOSED 3 TOWNHOUSE UNITS & 3 SFD UNITS
ADT RATE - 46 ADT (23 ENTER/23 EXIT)
AM PEAK RATE - 3 VPH (1 ENTER/2 EXIT)
PM PEAK RATE - 5 VPH (3 ENTER/2 EXIT)
SLOPES: THIS SITE CONTAINS BOTH MANAGED AND PRESERVED SLOPES AS
SHOWN ON THIS PLAN.
TRASH: ALL TRASH SHALL BE COLLECTED BY A DRIVING DUMPSTER
SERVICE - EACH LOT SHALL HAVE AN INDIVIDUAL TRASH
CONTAINER.
LIGHTING: NO ON STREET LIGH77NG IS PROPOSED WITH THIS PLAN.
DAM INUNDATION: THIS PROPERTY IS NOT LOCATED WITHIN A DAM INUNDA7ON ZONE.
FIRE FLOW.• AS REQUIRED, ALL FIRE FLOWS WITHIN THE DEVELOPMENT SHALL BE
A MINIMUM OF 1000 GPM AT 20 PSI. ADDITIONALLY, FIRE HYDRANTS
SHALL BE PROVIDED ALONG THE ROADWAYS FOR FIRE PREVENTION
AT A MAXIMUM SPACING OF 500 FT PER IRA VELWAY.
EXISTING FIRE FLOW 1135 GPM WITH 66 PSI PRESSURE.
DUNLORA OVERLOOK
WPO 201700052
(AMENDMENT #4 TO WPO 201600058)
RIO MAGISTERIAL DISTRICT ALBEMARLE COUNTY, VIRGINIA
� � I
i
1 i
EXISTING
I A" v Ng PROPERTY LINE
IV
1 I
i
\
PHASE Iv�,�
r r�
61
X, \11'
/
PHASE II
r - r
\
i
z
\
SCALE: 1"=60'
OWNER
DUNLORA INVESTMENTS, LLC
455 SECOND STREET SE, SUITE 400
CHARLOTTESVILLE, VA 22902
A19aI7_11I; IP191u1; 1►1W/i!a 61901.9; I�Zy:1_1►Lh:y
THIS AMENDMENT #4 UPDATES THE PREVIOUSLY APPROVED WPO 201700052 AMENDMENT #2. THIS
AMENDMENT NOW MATCHES THE RECENTLY APPROVED PHASE II LAYOUT UNDER SDP 202100023 MAJOR
SITE PLAN AMENDMENT, WHICH IS AN AMENDMENT TO SDP 201800002. THIS AMENDMENT#4 REFLECTS
THE LESS IMPERVIOUS PHASE II LAYOUT AND THE REPLACEMENT OF THE PHASE II UNDERGROUND
DETENTION SYSTEM WITH A NEW PHASE II DRY DETENTION BASIN (SWM FACILITY'B').
ENGINEER
COLLINS ENGINEERING
200 GARRETT STREET, SUITE K
CHARLOTTESVILLE, VA 22902
D�yul7_1u1q�I�1u1�►�E/i!►[�11�
1. THE APPROVED WPO AMENDMENT #2 IS VOIDED WITH THE APPROVAL OF THIS PLAN AMENDMENT.
2. THE APPROVED WPO AMENDMENT#3 IS REPLACED WITH THE APPROVAL OF THIS PLAN AMENDMENT.
3. THE PHASE II RETAINING WALL ADJACENT TO SWM FACILITY'B' SHALL BE DESIGNED, SUBMITTED AND
APPROVED BY THE COUNTY PRIOR TO THE ISSUANCE OF A BUILDING PERMIT.
4. THE SWM FACILITY EASEMENT, DEED & PLAT WILL NEED TO BE RECORDED PRIOR TO FINAL SITE PLAN
APPROVAL.
5. PHASE I CONSTRUCTION IS SUBSTANTIALLY COMPLETE.
IA. Corenenl Church
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VICINITY MAP
SCALE: 1" = 500'
SCOTTIR. CBLLIM
ea"�yH4j V
Lic. No. 035791
°4_ 11/5/21
Auto..."
6eiety Pmee¢M1 C
rt'Osbv's aearr
Sheet List Table
Sheet Number
Sheet Title
1
COVER
2
EXISTING APPROVED CONDITIONS
3
EROSION & SEDIMENT CONTROL NARRATIVE
4
PHASE I EROSION & SEDIMENT CONTROL PLAN
5
PHASE II EROSION & SEDIMENT CONTROL PLAN
5A
PHASE III EROSION & SEDIMENT CONTROL PLAN
6
EROSION & SEDIMENT CONTROL NOTES & DETAILS
7
STORMWATER MANAGEMENT PLAN (PRE -DEVELOPMENT)
8
STORMWATER MANAGEMENT PLAN (POST -DEVELOPMENT)
9
STORMWATER MANAGEMENT NOTES & DETAILS
10
STORMWATER MANAGEMENT NOTES & DETAILS
11
GRADING & UTILITY PLAN
12
TOTAL NUMBER OF SHEETS
EROSION & SEDIMENT CONTROL LEGEND
LIMITS OF LAND DISTURBANCE
SAFETY FENCE PER VESCH 3.01
� 4 DIVERSION DIKE
CE
CONSTRUCTION ENTRANCE PER VESCH 3.02
BOUNDARY LINE
SILT FENCE
SF
SILT FENCE PER VESCH 3.05
DIRECTION OF FLOW
0INLET
PROTECTION PER VESCH 3.07
653.75 PROPOSED CONTOUR
- DRAINAGE DIVIDE
DD
DIVERSION DIKE PER VESCH 3.09
SOILS LINE
&SEDIMENT
BASIN PER VESCH 3.14
MANAGED SLOPES
OP
OUTLET PROTECTION PER VESCH 3.18
PRESERVED SLOPES
BT
SOIL STABILIZATION MATTING VESCH 3.36
STREAM BUFFER
OPEN SPACE PRESERVATION
SITE PLAN LEGEND
0 EXIS77NG CULVERT
0 CULVERT
DROP INLET
CURB
0 CURB & GUTTER
0 PROPOSED PAVEMENT
PROPOSED PERM PAVERS
DRIVEWAY CULVERT
MOT STANDARD STOP SIGN
ma EXISTING CONTOUR
PROPOSED CONTOUR
240.55 PROPOSED SPOT ELEVA RON
F
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Z
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JOB NO.
152118
SCALE
AS NOTED
SHEET NO.
1
\ / N/F
\ I XISTING ROADSIDE DITCH PROPERTY LINE (TYP. CLUB DUNLORA LLC. NOTES:
g — — PARCEL: 62F-Ai i. IMPROVEMENTS SHOWN HEREIN ARE APPROVED PER DUNLORA PARK ROAD & UTILITY PLAN SUB2oi6-2o6 AND DUNLORA �TH 0
\ I (D.B. 3574, PG. 668) PARK VSMP PLAN WPO-2017-35 (AMENDED WPO-2oi6-58). j
1 I 1 R-4 RECREATIONAL CLUB EXISTING PRESERVED z. THIS PROJECT IS NOT LOCATED WITHIN FLOODPLAIN LIMITS, BASED ON FEMA MAP NUMBER 51003Co229D, DATED
STEEP SLOPES FEBRUARY 4, zoo5.
3. TOPOGRAPHY & BOUNDARY INFORMATION PROVIDED BY ON -GROUND SURVEY BY CARDINAL SURVEY IN SEPTEMBER SCOTT R. NS%
2oi6, AND FROM DEEDS AND PLANS OF RECORD. SLOPES HAVE BEEN DETERMINED LESS THAN 25% WHERE INDICATED U Lic. No. 035791,1,
SOHWARTZMAN IOEL & ZIVA PER NEW TOPOGRAPHIC SURVEY AND SLOPES EXHIBIT PROVIDED BY ROUDABUSH, GALE, AND ASSOCIATES DATED MAY o� 11/5/21 w4
18, z0i7, AS PERMITTED UNDER SECTION 30.7.4(b)(h). \ PARCEL: 4679, PG.64 ti
\ 4. MANAGED AND PRESERVED STEEP SLOPES EXIST AS SHOWN ON THE PROPERTY. E'Sg gG
(Qk 4 RESIDENCE 5• THERE IS A PORTION OF A WPO STREAM BUFFER LOCATED AT THE SOUTHEAST CORNER OF THE SITE. ZONAL E
6. THE PROPERTY IS NOT LOCATED WITHIN A DAM INUNDATION ZONE.
7. THE PROJECT ZONING IS R-4 AND AIRPORT IMPACT AREA (AIA).
RCP
APPROTO DIVERT UPSTREAM ROADSIDE
DITCH UNDER NEW ENTRANCE x \ V A
\ \ \\\ \
� / \ \ \ \� HERSON, MICHAEL OR CAROLYN o
APPROVED \ \ � \ \ \ \ � ��
APPROVED STREET \ \
TREE(TYPJ ' WAT.LATERAL / \\ \ \ \ \\� \ , PARCEL:6zF-iy
APPROVED SIDEWALK j + (TYPJ J / \ \ \ \ \ \ \\� \\ RB RESIDENCE NCE3220, PG. 3) atE
w APPROVED \ \\ \ \ \ \ �\ m I-
4/ SAN.LATERAL , / \ \ \ > Ln w
CITY OF CHARLOTTESVILLE 3 � �\ \ g
6� + (TYP.) � \ ` i ) � \ � �
PARCEL: 61-i6g w \ \ \ \ \ \ \ \ 1 I / \\\ \\ \\ O F O
(D.B. 46zz, PG. 5z3) O / \ \ \ \\ \ \ \ \ `\\` \ \ \\ �"� Z w
R-4 ROADWAY &VACANT LAND �Q �� / + i � x \ \\ \\ \ � \ \ � \ \\\ \\ .w Q
LLA
CRO
HITMAN OR
. x
SS PARCEL:6zF-13 LEVICK
\ \ \ \ \ (D.B. i75z, PG. 455)
1
R-4 RESIDENCE
APPROVED 4 WIDE i DEEP V-DITCH
TO CONVEY UPSTREAM FLOW TO THE STREAM
PHASE LINE rj
m
7\WPO STREAM BUFFER\� N
EXISTING EOP l 1 / / f \\ \ / / \ / / / \ \ \� \ \ \\ LEVIN, JULIUS OR ETTA
J \ \\APPROVED / _ \ \ \ \ PARCEL:6zF-iz
/� \ J WAT. LATERAL APPROVED / (D.B. o6o PG. 8R-4 RESIDENCE )
(TYP.) �8" WATERLINE / \ \� \\\
PAINTLINE S
APPROVED
i8"YARD DRAIN'B' \ A V� L9 CA
+ / RIM=444.00 / �; / A A
AP�1M
ED / / A ;% �v �\ v
8" SANITARY /\� A
\ \ \ \ \ vv �C\ \ �x\ `\'
\ *k
311
+ \ RICHARDSON, DAVID OR VICTORIA CY)
PARCEL:6zF-u �
(D9) R-4 RESIDENCE i
+ / \ V CV
\ \
8� YARD EDRAIN'A'� ry�O �� . /� i; , : '� A u W
DUNL�ORA I�VESTA�IEN�S L� C VAR. WIDTH PUBLIC \ V A \ RIM=yyi.8o a /� �� \� �\ CV
DRAINAGEEASEMENT
\ \\ PARCEL: 61-i65R D.B.
(P.B. 4967,Ln
0-4RESIDENTIAL�� \ A GG j �-,1 VA �\A NA i
�V� V \
EXISTING SEGMENTAL V APPROVED\ m� 1 1, \ \� z
��
RETAINING WALL APPROVED �6" WATERLINE Tr' / PANGS, STEVE OR JOANNE I -I
\ APPROVED SIDEWALK AND STREET TREES WILL BE \ / }
MAX HT.-6 SAN.LATERAL �� I / / /N \ \ PARCEL:6zF-io
REVISED ALONG RIO ROAD IN ACCORDANCE WITH APPROVED \ \ \ / W J a' V
/ x\ RIO ROAD IMPROVEMENT PLAN BY OTHERS. SIDEWALK AND STREET \\ \ \ �\ �P•) + / I // / / I \ i \\ \\ (D.B. 2679, PG.341) /� z
/ R-4RESIDENCE W L.L
TREES ON RIO ROAD ARE INCLUDED IN THE SCOPE OF THIS PLAN. \\ T \ ' \ / W / / I \ _ \ \\ \ Q
EXISTING SEGMENTAL � / / / � _
( RETAINING VxLL � ` W 434 \ Ci / ; \ U
z MAX HT. = 6� V / / /�1
THESE SLOPES HAVE BEEN DETERMINED LESS THAN 25°fr �� A \ _j > LU
x PER NEW TOPOGRAPHIC SURVEY AND SLOPES EXHIBIT PROVIDED BY V`� �� A / / / / / �S 1 V A \� \` � W
\ \ ROUDABUSH, GALE, AND ASSOCIATES DATED MAY 3.8, zoi7, AS Q
\ AV ' PERMITTED UNDER SECTION 3o.7.4(b)(hA \\ /� p �� ��i'\ A 02
1 _
O a
\ \ \\\ APPROVED W �\ / � r--I
/ ��
OPEN SPACE EASEMENTS � \� \ � \ � �
\\ \\ \ (FROM DUNLORA PARK \ \
h+ \ \ ROAD PLAN - i.og ac. MIN.) \ �\ \ - / / / r i Lr)
/ T-
RIO ROAD CURB \ \V\� V / / / ,� (�
AND GUTTER ` ` \ \ ` \V A �, / - i A \ �- ME T -APPR A _
i \
(BY OTHERS) G / \ \\ 1 \ \\\\ \\ �� \ ` TW4z4 / // / ui
133 / /// SWMOVEDFACILITY \ \ � i�
EXISTING MANAGED \ V�_ �3/� / - —tt` / j ��Yrfi�` �i\
WETSEL, THOMAS D LIFE ESTATE,
PARCEL:61-167 \
\
(D.B. 2688, PG. 564)
R-4 RESIDENTIAL
\\\
TEMPORARY GRADING EASEMENT FOR
\
PUBLIC USE UPON DEMAND OF THE COUNTY I
I
\
Ih
WETSEL, THOMAS D & CLARENCE
PARCEL:62-167C /
(D.B.1681, PG. i74) I
R-y RESIDENTIAL
/
N /F - 422 --4��
V BW 4z/ "� � / \ RESIDENCE i
V i — ,, R- A
LAWRENCE E. MARTIN, JR. - �j / j y A\ W
PARCEL: 61-i6SC
\ c9� (D.B. 4552, PG.15) — 26
9 4 —
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GENERAL NOTES
EROSION CONTROL NOTES
DESCRIPTION OF EROSION do SEDIMENT
1. THE OWNER/DEVELOPER OF THIS PROPERTY IS:
ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION
CONTROL MEASURES.
DUNLORA INVESTMENTS, LLC
AND SEDIMENT CONTROL PRACTCES WILL BE CONSTRUCTED AND
455 SECOND STREET SE, SUITE 400
CHARLOTTESVILLE, VA 22902
MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF
EROSION AND SEDIMENT CONTROL MEASURES:
THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA
2. THESE PLANS HAVE BEEN PREPARED BY:
REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL
IT IS ANTICIPATED THAT A CONSTRUCTION ENTRANCE, TEMPORARY DIVERSION
COLLINS ENGINEERING, INC
REGULATIONS
BERMS, RIGHT OF WAY DIVERSION, A SEDIMENT BASIN, SEDIMENT TRAPS, OUTLET
200 GARRETT STREET, SUITE K
ES-2. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO
PROTECTION, AND SILT FENCE WILL BE INSTALLED TO CONTROL SURFACE
CHARLOTTESVILLE, VA 22902
THE PRE-CONS7RUC77ON CONFERENCE, ONE WEEK PRIOR TO THE
DRAINAGE. TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL
TELEPHONE: (434) 293-3719 FACSIMILE: (434) 293-2813
COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO
3. SOURCE OF TOPO & SURVEY: ON -GROUND SURVEY PROVIDED BY CARDINAL
THE FINAL INSPECTION.
LAND DISTURBANCE ACTIVITIES. TEMPORARY STOCKPILE AREAS WILL BE
SURVEY IN SEPTEMBER 2016, AND FROM DEEDS AND PLANS OF RECORD.
ES-J.-ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR
MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED FROM AREAS TO BE GRADED
4. ZONING: R-4 RESIDENTIAL
TO OR AS THE FIRST STEP IN CLEARING.
AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL BE ON SITE
5. TAX MAP AND PARCEL NUMBER: TMP 61-165
ES-4:A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL
AND SHALL BE STABILIZED WITH A TEMPORARY VEGETATIVE COVER. PERMANENT
6. USGS DATUM: NAD 83
BE MAINTAINED ON THE SITE AT ALL TIMES.
SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE
7. LOCATION/ADDRESS OF PROJECT: DUNLORA DRIVE
ES-5.-PRIOR TO COMMENCING LAND DISTURBING AC77VITIES IN AREAS OTHER THAN
8. PROJECT AREA: 8.62 ACRES
INDICATED ON THESE PLANS (INCLUDING BUT NOT LIM17ED TO, OFF -SITE
EXCAVATED AND WHERE CONSTRUCTION ACTIVITIES HAVE CEASED. PERMANENT
9. SITE PHASING: PHASE I AND PHASE II, AS SHOWN.
BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A
SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE
10. PUBLIC UTILITIES: WATER &SEWER
SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND
LEFT DORMANT FOR A YEAR OR MORE. SELECTION OF SEED MIXTURE WILL
APPROVAL BY THE PLAN APPROVING AUTHORITY,
DEPEND ON THE TIME OF YEAR APPLIED. TEMPORARY SEEDING WILL BE
* COLLINS ENGINEERING SHALL NOT HAVE AUTHORITY OVER CONTRACTOR'S WORK,
ES-6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL
PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE
SAFETY PRECAUTIONS, SCHEDULES, OR COMPLIANCE WITH LAWS AND
EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND
REGULATIONS. WE SHALL NOT ASSUME RESPONSIBILITY FOR ANY
SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY.
THAN SEVEN DAYS. THESE AREAS SHALL BE SEEDED WITH FAST GERMINATING
CONSTRUCTION STARTED PRIOR TO PLAN APPROVAL.
ES-7.-ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL
VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECTION OF
MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING
SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED.
EROSION & SEDIMENT CONTROL
SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED.
ES-B:DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN
3.01 SAFETY FENCE - SAFETY FENCE WILL BE INSTALLED AROUND THE
APPROVED WATER FILTERING DEVICE.
MEASURES.
ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES
PROPOSED SEDIMENT BASIN.
STRUCTURAL EROSION AND SEDIMENT CONTROL PRAC7CES SHALL BE IN
PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT
3.02 CONSTRUCTION ENTRANCE - ONE CONSTRUCTION ENTRANCE SHALL BE
ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK.
ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFEC77VENESS
INSTALLED AT THE EXISTING DRIVEWAY ON DUNLORA DRIVE. THIS WILL BE THE
STRUCTURAL PRACTICES USED IN THIS SEC170N CONSIST OF THE FOLLOWING:
OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY.
ONLY POINT OF INGRESS AND EGRESS TO THE SITE. CARE WILL BE TAKEN TO
301 SAFETY FENCE.,
EROSION CONTROL NOTES
PROTECT ADJACENT ROADWAYS FROM TRANSFER OF SEDIMENT.
A PR07EC77VE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CON7ROL
3.05 SILT FENCE- SILT FENCE WILL BE PLACED ON THE DOWNSTREAM SIDE OF
MEASURE. TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY
1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE
DISTURBANCE WHERE NOTED ON THE PLANS.
THE PUBLIC. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH
PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND
3.07 INLET PROTECTION - INLET PROTECTION SHALL BE INSTALLED ON EXISTING
CAN BE CONSIDERED UNSAFE BY VIRTUE OF POTENTIAL ACCESS BY THE PUBLIC.
DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION.
2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED
AND PROPOSED STRUCTURES WHERE INDICATED ON THE PLANS.
302 CONSTRUCTION ENTRANCE:
ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND
3.09 TEMPORARY DIVERSION DIKE- DIVERSION DIKES WILL BE USED AROUND THE
A STABILIZED PAVED CONSTRUCTION ENTRANCE WITH A WASH RACK LOCATED AT POINTS
SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND
PERIMETER OF SITE DISTURBANCE WHERE SHOWN ON THE PLANS TO DIRECT
OF VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION S17E. TO REDUCE 7HE
SEDIMENT CONTROL REGULATIONS.
AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR
3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS
RUNOFF TO ON -SITE SEDIMENT CONTROL FACILITIES.
RUNOFF. CONSTRUCTION EN7RANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO
THE FIRST STEP IN CLEARING.
3.13 TEMPORARY SEDIMENT TRAP- TEMPORARY SEDIMENT TRAPS WILL BE
REDUCE THE AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS.
4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE
INSTALLED WHERE SHOWN ON THE PLANS.
MAINTAINED ON THE SITE AT ALL TIMES.
305 SILT FENCE.
5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON
3.14 TEMPORARY SEDIMENT BASIN- TEMPORARY SEDIMENT BASIN WILL BE
A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED
THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS),
INSTALLED WHERE SHOWN ON THE PLANS.
ACROSS AND ATTACHED TO SUPPOR77NG POSTS AND ENTRENCHED, TO INTERCEPT AND
THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE
3.15 TEMPORARY SLOPE DRAIN- TEMPORARY SLOPE DRAIN WILL BE INSTALLED
DETAIN SMALL AMOUNTS OF SEDIMENT FROM D1S7URBED AREAS DURING CONSTRUCTION
OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY.
OPERATIONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING 7HE SITE AND TO
6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION
DISCHARGING INTO SEDIMENT TRAP #1 IN ESC PHASES II &III.
DECREASE THE VELOCITY OF SHEET FLOWS AND LOW- TO-MODERA 7E LEVEL CHANNEL
CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS
3.18 OUTLET PROTECTION- TO BE PROVIDED AT THE OUTFALL OF DRAINAGE
FLOWS. THE SILT FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH
DETERMINED BY THE PLAN APPROVING AUTHORITY.
PIPES WHERE SHOWN ON PLANS.
MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED.
7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT
3.19 RIPRAP- RIPRAP SHALL BE INSTALLED AS OUTLET PROTECTION WHERE
THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN
ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL
ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CON7ROL HANDBOOK (VESCH).
FINAL STABILIZATION IS ACHIEVED.
SHOWN ON THE PLANS.
8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING
3.31 TEMPORARY SEEDING- TEMPORARY SEEDING SHALL BE APPLIED WHERE
307 STORM DRAIN INLET PROTECTION:
DEVICE.
SHOWN ON THE PLANS.
A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP
9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND
INLET OR CURB INLET. TO PREVENT SEDIMENT FROM ENTERING STORM DRAINAGE
AFTER EACH RUNOFF PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP
3.32 PERMANENT SEEDING- PERMANENTLY SEEDING SHALL BE APPLIED WHERE
SYSTEMS PRIOR TO PERMANENT STABILIZATION OF 7HE DISTURBED AREA. INLET
TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE
SHOWN ON THE PLANS.
PROTECT70N APPLIES WHERE STORM DRAIN INLETS ARE TO BE MADE OPERATIONAL
IMMEDIATELY.
3.38 TREE PRESERVATION AND PROTECTION- TREE PRESERVATION FENCING
BEFORE PERMANENT STABILIZA7ON OF 7HE CORRESPONDING DISTURBED DRAINAGE AREA.
10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA.
11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL
SHALL BE INSTALLED WHERE SHOWN ON THE PLANS. NO TREES SHALL BE
309 TEMPORARY DIVERSION DIKE'
SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER
HARMED OUTSIDE OF THE LIMITS OF TREE PROTECTION FENCING.
A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A
DEBRIS.
3.39 DUST CONTROL- DUST CONTROL SHALL BE APPLIED THROUGHOUT THE SITE
SLOPING DISTURBED AREA. TO DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS
12• BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER
AWAY FROM UNPROTECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET. TO
ZONING ORDINANCE SECTION 5.1.28.
WHERE SHOWN ON THE PLANS.
DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING
13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF
FACILITY SUCH AS A SEDIMENT 7RAP OR SEDIMENT BASIN. USE WHEREVER STORMWA7ER
THE CODE OF ALBEMARLE.
STORMWATER MANAGEMENT:
RUNOFF MUST BE TEMPORARILY DIVERTED TO PR07ECT DISTURBED AREAS AND SLOPES
14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL
BE LIMITED TO THE HOURS OF 7:OOAM TO 9:OOPM.
STORMWATER RUNOFF QUANTITY WILL BE TREATED WITH TWO DRY DETENTION
OR RETAIN SEDIMENT ON SITE DURING RTHESE STRUCTURES GENERALLY
.
HAVE A LIFE EXPECTANCY OF 18 MONTHHSS O OR LESS,
, WHICH CAN BE PROLONGED NTH
15.
15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAN
BASINS. STORMWATER QUALITY WILL BE TREATED WITH A NUTRIENT CREDIT
PROPER MAINTENANCE.
LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS,
PURCHASE AND SWIM FOREST &OPEN SPACE PRESERVATION. SEE STORMWATER
PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC
J. 13 TEMPORARY SEDIMENT TRAP:
STREET BECAUSE 0 SLIDES, SINKING, OR COLLAPSE.
MANAGEMENT PLAN SHEETS AND REPORT FOR DETAILS.
A TEMPORARY PONDING AREA FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH
16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT
TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION
MAINTENANCE.•
A STONE OUTLET. TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS
LONG ENOUGH TO ALLOW THE MAJORITY OF 7HE SEDIMENT TO SETTLE OUT. USE BELOW
CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT,
IN GENERAL, DURING CONSTRUCTION THE RLD OR CONTRACTOR ON -SITE WILL CHECK
DISTURBED AREAS WHERE THE TOTAL CONTRIBUTING DRAINAGE AREA IS LESS THAN 3
UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY.
ALL EROSION AND SEDIMENT CONTROL MEASURES DAILY AND AFTER EACH
ACRES, WHERE THE SEDIMENT TRAP WILL BE USED NO LONGER THAN 18 MONTHS, AND IT
17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO
SIGNIFICANT RAINFALL. MONITORING REPORTS WILL BE REQUIRED FROM THE RLD IF
MAY CONSTRUCTED EITHER INDEPENDENTLY OR IN CONJUNCTION KITH A TEMPORARY
BE AT 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A
NEEDED. SPECIFIC ATTENTION WILL BE GIVEN TO THE FOLLOWING ITEMS:
DIVERSION DIKE.
50 50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO
CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET.
a.SEDIMENT BASINS AND TRAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE
314 TEMPORARY SEDIMENT BASIN:
STRAW MULCH IS TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO
WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK.
A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE STRUCTURE
APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR.
b.ALL INLET PROTECTION AND GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR
FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A
18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND
SEDIMENT BUILDUP THAT WILL PREVENT PROPER DRAINAGE. IF THE GRAVEL IS
DRAINAGEWAY. TO DETAIL SEDIMENT -LADEN RUNOFF FROM DISTURBEDCLOGGED
AREAS
MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS/1000SF,
BY SEDIMENT, THE GRAVEL WILL BE REMOVED AND CLEANED, OR IT WILL
IN "WET" AND `DRY" STORAGE LONG ENOUGH FOR 7HE MAJORITY OF THE SEDIMENT TO
INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT
BE REPLACED.
SETTLE OUT. APPLIES BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBUTING
1000LBS ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL
/
c.ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR
DRAINAGE AREA IS EQUAL TO OR GREATER 7HAN THREE ACRES. 7HERE MUST BE
BE APPLIED AT 180LBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND
DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL
SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY FOR THE CONSTRUCTION OF A
0-5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED
BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHED HALF WAY TO
TEMPORARY IMPOUNDMENT.
AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION
THE TOP OF THE BARRIER.
CONTROL INSPECTOR.
c.ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND
J.15 TEMPORARY SLOPE DRAIN:
19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH
IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED.
A FLEXIBLE TUBING OR CONDUIT EXTENDING FROM THE TOP TO THE BOTTOM OF A CUT
RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR
IN CASE OF EMERGENCY, THE PRIMARY CONTACT FOR THE PROJECT WILL BE THE RLD
OR FILL SLOPE. TO TEMPORARILY CONVEY CONCENTRATED STORMWATER RUNOFF SAFELY
IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME
OR CONTRACTOR ON -SITE. THE CONTRACTOR WILL BE DETERMINED AT THE TIME THE
DOWN 7HE FACE OF A CUT OR FILL SLOPE Wl7HOUT CAUSING EROSION ON OR BELOW THE
IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY
CONTRACT IS AWARDED. IN ADDITION THE DEVELOPER MAY BE CONTACTED. UPON
SLOPE. USE ON CUT OR FILL SLOPES WHERE 7HERE IS A P07EN77AL FOR UPSLOPE
TO ACHIEVE A GOOD STAND F GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE
COMPLETION OF THE PROJECT, THE OWNER WILL BE RESPONSIBLE FOR SITE
FLOWS TO MOVE OVER 7HE FACE OF THE SLOPE CAUSING EROSION AND PREVENTING
COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED
IMMEDIATELY
MAINTENANCE.
ADEQUATE STABILIZATION.
20.ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED
J.18 OUTLET PRO 7ECTON.
WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED,
STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPA77NG DEVICES
SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR.
PLACED AT THE OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS TO PREVENT SCOUR
21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WITHIN 1 YEAR OF
1. SET POSTS AND EXCAVATE A 4 X4°
AT STORMWATER OUTLETS, TO PROTECT THE OU7LET S7RUCTURE, AND TO MINIMIZE THE
THE DATE OF APPROVAL. (WATER PROTECTION ORDINANCE SECTION 17-204G.)
TRENCH UPSLOPE ALONG THE LINE
POTEN77AL FOR DOWNS7REAM EROSION BY REDUCING 774E VELOCITY AND ENERGY OF
22. PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE (9)
OF POSTS.
CONCENTRATED STORMWATER FLOWS. APPLICABLE TO 7HE OUTLETS OF ALL PIPES AND
MONTHS AFTER THE DATE THE LAND DISTURBING ACTIVITY COMMENCED. (WATER
ENGINEERED CHANNEL SECTIONS.
PROTECTION ORDINANCE SECTION 17-207B)
J. 19 RIPRAP:
A PERMANENT EROSION -RESISTANT GROUND COVER OF LARGE LOOSE ANGULAR STONE
SOIL DESCRIPTIONS
1
WITH FILTER FABRIC OR GRANULAR UNDERLINING TO PROTECT THE SOIL FROM THE
I
EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW THE VELOCITY OF CONCENTRATED
2C- ALBEMARLE FINE SANDY LOAM - 7%TO 15% SLOPES.
L
RUNOFF WHILE ENHANCING THE P07EN77AL FOR INFIL77?A770N, AND TO STABILIZE SLOPES
SOIL CONSISTS OF DEEP, WELL DRAINED SOILS. SURFACE RUNOFF IS MEDIUM TO LOW
I �_
WITH SEEPAGE PROBLEMS, AND/OR NON -COHESIVE SOILS. USE WHEREVER SOIL AND
WITH MODERATELY HIGH PERMEABILITY. HYDROLOGIC SOIL GROUP'C'.
WATER INTERFACE AND 7HE SOIL CONDITIONS, WATER TURBULENCE AND VELOCITY,
22B- CULPEPERFINE SANDY LOAM -2%TO7%SLOPES.
EXPECTED VEGETA7VE COVER, ETC., ARE SUCH THAT THE SOIL MAY ERODE UNDER 7HE
SOIL IS DEEP, WELL -DRAINED WITH MODERATE PERMEABILITY. FORMED IN RESIDUUM
DESIGN FLOW CONDITIONS.
WEATHERED FROM META-ARKOSIC SANDSTONE. HYDROLOGIC SOIL GROUP'B'.
331 TEMPORARY SEEDING.,39D
- HAZEL LOAM -15%TO 25%SLOPES.
FLOW
THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY
SOIL IS DEEP, WELL -DRAINED WITH MODERATE PERMEABILITY. FORMED IN RESIDUUM
-I 4
SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION
WEATHERED FROM GREYWACKE SANDSTONE. HYDROLOGIC SOIL GROUP'B'.
AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO
FINAL GRADE FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM
SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE
PHUILCIIDN lU HAML SUILS LXPUSLU UURINU CUNSIRUCIIUN UNTIL HEMMANENI
VEGETATION OR 07HER EROSION CON7ROL MEASURES CAN BE ESTABLISHED.
332 PERMANENT STABILIZATION:
THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY
PLANTING SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED
AREAS. TO PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT IS
ECONOMICAL, ADAPTABLE TO S17E CONDITIONS, AND ALLOWS SELECTION OF THE MOST
APPROPRIATE PLANT MATERIALS TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL
BEAUTY. UPON COMPLETION OF CONS7RUC77ON ACTIVITIES, ALL AREAS WILL RECEIVE A
PERMANENT VEGETA7VE COVER.
338 TREE PRESERVATION AND PR07ECTION:
PROTECTION OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND
DISTURBING AND CONSTRUCT70N ACTIVITY. TO ENSURE THE SURVIVAL OF DESIRABLE
TREES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL,
WATERSHED PROTECTION, LANDSCAPE BEAUTIFICATION, DUST AND POLLUTION CON7ROL,
NOISE REDUCTION, SHADE AND OTHER ENVIRONMENTAL BENEFITS WHILE THE LAND IS
BEING CONVERTED FROM FOREST TO URBAN -TYPE USES. APPLIES IN 7REE-INHAB17ED
AREAS SUBJECT TO LAND DISTURBING AC77WTIES.
339 DUST CONTROL:
REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING DEMOLITION
AND CONSTRUCTION ACTIVITIES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST
FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES
WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR
PLANT LIFE. DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND
AIR MOVEMENT OF DUST DURING CONSTRUCTION MEASURES EMPLOYED SHALL BE IN
ACCORDANCE K17H 7HE VESCH.
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PROFILE
STONE 70' MN.
CONSMUCTION ASPIVI PAVED
A
ACC65 WASxRIGR
"II
21 2X PAEMI� VEMI
yW 12 MIN.- �-
eW4i f3frEHO ELL moM LID -M UVC ERAIxiGf
O xNIRE55 AW EGRESS ���lIIJJJ TO SEDIMENT
LWEMi10N TRAPPING DEVICF
12' MI POSI4VE quNlsd
2S TO SEMMENT
TPAPPIND DLYU
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SECTION A A
1 oT1YHD br BnlJlnl a71Lt IIM
t'.. Exll.ock
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cnl YNIUll Io,m,Oee>teMuml Af .nWnnR .hRG Le plerennl nom
a,I"I nvu: Jowl Ill.. Mcna' Or YnlaI
.
PAVED WASH RACK
PERSPECTIVE VIEW PERSPECTIVE
PLASTIC FENCE METAL FENCE
Sou.: AdxPMd fImF Coxwtd Plxstia and
VDOT Rnad and From, Rsnda,d,
III-i
Platt 3.01.1
2. STAPLE WIRE FENCING TO THE POSTS.
THE PURPOSE OF THIS LAND -DISTURBING ACTIVITY IS TO GRADE THE SITE FOR THE DEVELOPMENT OF DUNLORA.
THE TOTAL ACREAGE TO BE DISTURBED WITH THIS PLAN IS 7.53 ACRES.
EXISTING SITE CONDITIONS:
THE EXISTING SITE IS A WOODED, SLOPING PARCEL WITH AN EXISTING RESIDENCE AND OUTBUILDINGS. THE SITE IS
GENERALLY WELL DRAINED WITH PRESERVED AND MANAGED STEEP SLOPES. EROSION AND SEDIMENT CONTROL
MEASURES HAVE BEEN DESIGNED TO CONFORM TO THE EXISTING SITE SLOPE AND PROTECT THE PERIMETER
STREAMS AND ADJACENT PROPERTIES.
ADJACENT AREAS:
THE SITE IS BOUNDED TO THE WEST BY DUNLORA DRIVE AND TO THE SOUTH BY RIO ROAD EAST. IT IS
BORDERED BY RESIDENTIAL LAND AND TWO CREEKS TO THE NORTH AND EAST.
OFFSITE LAND DISTURBANCE:
NO OFF -SITE LAND DISTURBANCE IS PROPOSED.
CRITICAL AREAS:
MANAGED STEEP SLOPES TO BE IMPACTED. STREAMS AND BUFFERS TO BE PROTECTED. WOODLAND/OPEN
SPACE PRESERVATION AREAS TO BE MAINTAINED AND PROTECTED WITH TREE PROTECTION FENCING.
SOILS:
SEE SOILS BOUNDARIES ON THE EROSION AND SEDIMENT CONTROL PLAN SHEET, AND DESCRIPTIONS ON THIS
SHEET.
SEQUENCE OF CONSTRUCTION:
1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED.
2. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE
APPROVAL FROM THE INSPECTOR ON THE PROJECT.
3. CONTRACTOR SHALL IDENTIFY THE LIMITS OF DISTURBANCE AND INSTALL TREE PROTECTION FENCING WHERE
INDICATED ON THE PLANS BEFORE ANY SITE DISTURBANCE SHALL TAKE PLACE. CONTRACTOR SHALL ENSURE
THAT TREES TO BE SAVED ARE FLAGGED ALONG THE LIMITS OF CLEARING AND PROTECTED.
4. INSTALL THE PAVED CONSTRUCTION ENTRANCE WITH WASH RACK AS SHOWN ON THE PLANS. CONSTRUCTION
ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS,
PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY (VEHICULAR) TRACKING ONTO
THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL
BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY
SHOVELING OR SWEEPING AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING
SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. INSTALL THE WASH RACK UPHILL
FROM THE PROPOSED SEDIMENT BASIN. ACSA WILL DETERMINE THE APPROPRIATE METHOD OF SUPPLYING THE
WASH RACK. PARKING AND CONSTRUCTION ENTRANCE AREAS SHALL BE CLEARED OF ALL VEGETATION,
ROOTS, OR OTHER OBJECTIONABLE MATERIALS BEFORE CONSTRUCTION ROAD STABILIZATION IS INSTALLED.
5. CONTRACTOR DOES NOT HAVE PERMISSION TO CLEAR CUT THE SITE PRIOR TO INSTALLING THE PERIMETER
MEASURES AS SHOWN ON THE E&S PLAN. CONTRACTOR SHALL EXPEDITE INSTALLATION OF THE PERIMETER
EROSION AND SEDIMENT CONTROL MEASURES AND PROTECT THE SITE WITH THE LEAST AMOUNT OF TREE
REMOVAL NECESSARY TO INSTALL THESE MEASURES. INSTALL THE INITIAL CONSTRUCTION MEASURES AS
SHOWN ON THE PHASE I EROSION CONTROL PLAN SHEETS. THIS INCLUDES THE SEDIMENT TRAPS, THE
SEDIMENT BASIN, SILT FENCE, DIVERSION BERMS AND THE TEMPORARY SLOPE DRAIN. STABILIZATION
MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, BERMS, AND DIVERSIONS
IMMEDIATELY AFTER INSTALLATION. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A
FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE
LAND DISTURBANCE TAKES PLACE.
6. INSTALL ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THE PHASE I EROSION CONTROL PLAN.
7. ONCE ALL THE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE PHASE I EROSION
CONTROL PLAN AND THE INSPECTOR HAS APPROVED THE EROSION CONTROL MEASURES, THE CONTRACTOR
CAN BEGIN GRADING OPERATIONS.
8. ROUGH GRADE THE SITE TO THE CONTOURS SHOWN ON THE PHASE II EROSION CONTROL PLAN AND INSTALL
THE PROPOSED STORM PIPE ADJACENT TO DUNLORA DRIVE WITH INLET AND OUTLET PROTECTION.
9. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS
AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE
APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN
DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO
AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR.
10. INSTALL PHASE III CONTROLS. SEE SHEET 5A FOR A MORE DETAILED SEQUENCE OF CONSTRUCTION FOR
PHASE II OF THIS DEVELOPMENT (LOTS 29-34 & ITS INFRASTRUCTURE).
11. ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN CONVERT
THE SEDIMENT BASIN AND SEDIMENT TRAP 1 INTO PERMANENT STORMWATER MANAGEMENT FACILITIES. AT
THIS TIME THE REMAINING PORTION OF THE ALLEY AND LOTS 33 & 34's DRIVEWAYS MAY BE INSTALLED. NO
E&S ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES
PERMISSION.
12. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND SEDIMENT CONTROL
HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE
WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK.
13. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER
FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED UNLESS
OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED
SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY
STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION.
3 ATTACH THE FILTER FABRIC TO
THE WIRE FENCE AND EXTEND
IT INTO THE TRENCH.
vZ" IIjm���ll111 nl t
Qil ���\p111111`���IIiI(�
�S
f
O SIL T FENCE
W
sF (WITH WIRE SUPPORT)
NOSCALE
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SECTION A A
PIPE OUTLET TO FLAT AREA WITH NO DEFINED CHANNEL
La
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PLAN
SECTION A -A '
OP PIPE OUTLET CONDITIONS
8 B.28-2
NOSCALE
3'05-2
4. BACKFILL AND COMPACT THE
EXCAVATED SOIL.
EXTENSION OF FABRIC AND WIRE INTO THE TRENCH.
TABLE 3] A
ADNESIVB.S USED FOR DUST
CONTROL
Wea
A hasion
A9h4yry
Dilution
True of
j{p7yIB
Not.
Aianir
Apron Emulsion
71
co.x Sprry
1,2m
Ltu EmWaion
1251
Elm Sprry
235
III in Wne,
4.1
IS. Sprry
300
Aaylit Emultlon
(Non mc)
7:1
Caaru Sprry
450
Nrytic Emulsion
('Raffic)
35:]
('verse Sprry
350
III
SOivm: VCDSWC
SH,
SLI
1 SILT FENCE DROP INLET
M PROTECTION
I I
PERSPECTIVE VIEWS
r..nt
ELEVATION OF STAKE AND
FABRIC ORIENTATION DETAIL A
TABLE 331-B
ACCEPTABLE
TEMPORARY SEEDING PLANT MATERIALS
'QUICK REFERENCE FOR ALL REGIONS'
Rate
Biluji111g Dates
SDecies
bs. acre
Sept. 1 - Feb. 15
50/50 Mix of
Annual Ryegrass
multi-Romm)
(Lolium
&
50 - 100
Cereal (Winter) Rye
(Secale cerealel
Feb. 16 - Apr. 30
Annual Ryegrass
(III multi-❑omm)
60 - IOD
May 1 - Aug 31
German Millet
(Setaria italics)
50
Source: Va. DSWC
TOTAL LBS
GENERAL SLOPE (3:1 OR LESS1 PER ACRE
KENTUCKY 31 FESCUE 128 LBS.
RED TOP GRASS 2 LBS.
SEASONAL NURSE CROP 20 LBS.
SEASONAL NURSE CROP 150 LBS
FEBRUARY 16 THROUGH APRIL ANNUAL RYE
MAY 1 THROUGH AUGUST 15 FOXTAIL MITEI
AUGUST 16 THROUGH OCTOBER ANNUAL RYE
NOVEMBER THROUGH FEBRUARY 15 WINTER RYE
NOTES:
1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL
TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32.
2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION
OF SEED APPLICATION IN ACCORDANCE W VESCH STD 3.35.
PS PERMANENT SEEDING SCHEDULE
NO SCALE
(STD. & SPEC. 3.32 OF VIRGINIA EROSION &
SEDIMENT CONTROL HANDBOOK, 3RD ED.)
SPECIFIC APPLICATION
THIS METHOD OF INI£r PROTECTION IS APPUCANLE WHERE THE
INLET DRAWS A REIATiVELY MT AMA (SLOPE NO GREATER
THAN 5%) WHLRE THE INLET MEET OR OVERUND PLOWS (NOT
EXCEEDING 1 C FS.) AEe TYPICAL THE MEMOD SHALL NOT
APPLY TO INLEM RECEIVING CONCENflUTM FIDIB. SUCH AS
W STREET OR HIOHOAY MEDIANS.
0
CONCRETE BLOCK
GRAVEL" F/L TER
OR#SCOARSEAGGREGATE.
OBLOCK& GRAVEL CURB INLET O
P SEDIMENTFILTER 3,07s
NO SCALE
ON SLOP£ES ST
COVERIRIPNGS
S
N T£C11V
MAY BE APPLIED ACROSS BERM
THE SLOPE. FII�III=111-
WHERE THERE IS A BERM AT THE TOP OF THE SLOPE
BRING THE MATERIAL OVER THE BERM AND ANCHOR If ITK��EEIIIIIIIIIIII-
BEHIND THE BERM KII�IEIII- III -III
�u IILE III III=III L
T�I �u�u�u�lll III ri III II
IM
Sant: Va. wWc
ALBEMARLE COUNTY
CONSTRUCTION ENTRANCE
pnxeslml DrtI ELEVATION ACR"Ec°re sum
335
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M°xI"°sMM°"MM°,"`"AT
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MUST EGENG RIu Maix OF
RED ME ONESS DMON ON
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SECTION A -A
Mi A ... MCNX nW Or 1- IS sIDWIND
MIN A MINIMUM Room IUSE OK GI 1.
PAVED TEMP CONST ENTR
�1I!A xtt CE
YNN�,EM.ABM�
�3 NA0?SN�PoSIS®
o,aFAeN
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SILT FENCE
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osw
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4 • =LIII
BRING MATERIAL DOWN TO A LEVEL AREA BEFORE STEEP
TERMR I(JG THE INSTALLATION„ TURN THE END SLOPE
UNDER 4 AND STAPLE AT 12 INTERVALS
12'
IN DITCHES APPLY PROTECTIVE COVERING
PARALLEL 1'0 THE DIRECTION OF FLOW.
USE CHECK SLOTS AS REQUIRED. AVOID
JOINING MATERIAL IN THE CENTER OF
THE DITCH /F AT ALL POSSIBLE
PRONE COV IPINOPARALLEL
TO THE DIRECTION OF FLOW
AND ANCHOR SECURELY,
g/M SOIL STABILIZATION BLANKET NOTE•
TREATMENTi SOIL STABILIZATION MATTING MATERIAL SHALL BE INSTALLED AS
NOSG4LE REQUESTED BY THE ALBEMARLE COUNTY EROSION CONTROL INSPECTOR
SCOTT/R. CiLLIN:
Lic. No. 035791
11/5/21
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CONCRETE WASH . ■ ■ ■ ■ NOTE: LEGEND LEGEND
OKTAREA I ..��� SF - _ \ PROPERTY LINE (TYP.) z. THE LIMITSi. TOTAL OF DISTS OF DTIURBANCE SHALLSTURBANCE BE CONPOSED CURRENT ITH THIS PLAN = 7.og ACRES. TH
U RENT WITH THE PROPOSED LIMITS OF LAND DISTURBANCE SAF SAFETY FENCE PER VESCH 3.01
WASH R Oli
•- — TREE PROTECTION FENCING. FENCING AND LOD SHOWN SEPARATELY IN THIS �� DIVERSION DIKE CONSTRUCTION ENTRANCE PER VESCH 3.02
x
PLAN FOR GRAPHICAL PURPOSES ONLY. NO DISTURBANCE IS PERMITTED G�
/ OUTSIDEOFTHELO BOUNDARY LINE SF SILT \ FENCE PER VESCH 3.05 SILT FENCE SCOTT R. LINS'Z
DIRECTION OF FLOW
IP
653.75 PROPOSED CONTOUR INLET PROTECTION PER VESCH 3.07 U Lic. No. 035791MENNEN ,a
_� �— 1 TP 1 I -
INAGE
\ \ - -
AP VED -- +— -__ --_ -- _ _ OILS LINEDIVIDE DIVERSION DIKE PER VESCH 3.09 pies 1
12'x70 MIN. �� STz I - \ MANAGED SLOPES SB SEDIMENT BASIN PER VESCH 3.14 SIONAL E�
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_ _ _ OP OUTLET PROTECTION PER VESCH 3.18 a a \ '•` PRESERVED SLOP B/ SOIL STABILIZATION MATTING VESCH 3.36
i MEN 'ol■ ■ w \ \ \ \ \ \ \ EAM BUFFER
OPEN SPACE PRESERVATION
CIP
♦v \\ \\\ v��vsvv .,
� LOCATION OF
FUELING AREA \ �'(� L A _ ♦� V VA \ \ \AA\ \ = Ln
APPROVED VDOT EC-1 CLASS Ai RIPRAP LOCATION OF o
W/FILTER FABRIC OUTLET PROTECTION LOCATION OF PORT -A -POTTY TYPE \ \ \ \ l o
010 0.53 CFS DUMPSTER �\� ♦ \ \ \ \
V10=2.61FPS - `� 2 = A V A \ \♦
L 5; D-1FLOW.4' DIRECTION ARROW (TYP.) \\ \
W1=3x1.25' 3.75' �V - \ \ \♦ \ \ \ \ \� \ ,w
W2=5'+1.25 6.z5' 1 6—.. DC / �` �\ \ \ ♦ V A\\ V V, co
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PH I' 1 \ \ • I \I \
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� \ EXISTING PRESERVED
x70' MIN
1'. 5g 1 s Area=5.31 ac. _ A \
� � 0 � \ I \ � \ STEEP SLOPES (TYP.)
�
-CONTRACTOR SHALL INSTALL OU NTABLE\` ° \ P TC=1 .2 MIN.: \\ RIGHT-OF-WAY DIVERSION W H THE 75 STREAM BUFFER
r IP :. �•� I� --- CONSTRUCTION OF PHASE II OFTHIS
J\
DEVELOPMENT THE MOUNTABLE DIVERSION
3' BERM SHALL BE RESTORED AT THE END OF
_ EACH DAY & PRIOR T43 WEATHER�
BERM�ENTS. '� A IF / \
PROPOSED DIVERSION! I � � i �♦
CONTRACTOR SHALL ENSURE ♦ / \ \ / / \ \— \ \\ \ \ \�
POSITIVE SLOPE MAINTAINED, �� ♦ v A V A �. A \
18"BERM PROVIDED. BERM APPROVED VDOT EW-1
✓ /� & VDOT EC-1
Y l SHALL BE STABILIZED AS A FIRST I D \ �� / CLASS 1 RIPRAP \ _ / / / / COIL
OUTLET PROTECTION
STEP IN DISTURBANCE, TYP. \
FABRIC
SOIL
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TP \\ 01o=1.8CFS J / / �, TYPE
e 40, ♦ V10-10.3 FPS //
\ ♦ \ _ / / / \ 39 // ♦ \\��\ \� \� \
\ \ L=8'; D z.5' \
F W1 3 x1.z
Wz 8+1.z5 39
z5' / DRAIN GE DIVIDE (TYP.)
vPROVED OTSTD.TYPEI
31'OF 0i5"HEAVY-DUTY, ♦ \ \ �RIPRAPLI CFFANNF,L//
\ \\ I I FLEXIBLE PIPE TO \ \♦ OL- 18\ OED ILE FITTER FABRIC
\ CONVEY RUNOFF FROM UNBIERLAYMEN CHANNEL
PROPOSED I I I DIVERSION TO RIPRAP �- ' 3'1 EXT�A(D T05TR�AM
STOCKPILE AREA \ / / / S J j ♦ I \ \ \\ \\\
SHALLEE- - I��t LINED OUTLET ♦
3uRRouNoeaev PROTECTION & RIPRAP
SILT FENCE- ( `:�' \ ♦ APPROVED \ 5 VA\ \ VA
SEDIMESTDTRAP ri1
NO SCALE
EXISTING MANAGED \\ \ \ IP \ / - 'APPROVEDVDOTEC-ICL.IRIPRAP\JS) \\ /
STEEP SLOPES (TYP.) \\ \ / . \ e \ �-r W1 4.5'; W2=13.5; L=12'; D=2.5' \ \
/ % ♦ / \\ - AP�RIVE�RS�BERM.\ \\ \ \
"`rrr
zi (- ,-� ' ♦ ° ° A /(-ON I RAC FOR SHALL ENSURE,
_ = 1 POSITIVE SLOPE MAINTAINED, A
"' BERM PROVIDED. BERMIALL BE STABILIZED AS A
\
APPROVED DIiErV
SION BERM. ` � // � \
CONTRACTORALL ENSURE - ) I 'ST STEP IN DISTURBANCE \ \ \
\\VA��A APPROVED ��/ �� \
/POSITIVE SLOAINTAINED, V A
e OP \\ �\ \ \� `\ - T1 S 18' BERM PROVIDED. BERM
_-5;
\ \ \ \ \ SHALL BE STABILIZED AS A
\ \ l \ \ 1 \ \\ . ♦ FIRST STEP IN DISTURBANCE
\ \ PHASE I \ g/M \ \�- \ \♦ \ / \
G \
\ ST1 PS / _ / 222
AREA=o.77 ac.1 � ' — � \ \ \\ \ � ��� \ _ \ � _ • � '� � � /„�eS / / �� y � � I
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_bc 5 \ VA\\\VA\\VA♦� v _ TS
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SF LIMITS OF DISTURBANCE TYP. TOTAL (i
AREA=7-53 ac.TREE PROTECTION SHALL BE
PLACED ON LOD LINE IN FIELD
DID �\
1�
25' STREAM BUFFER
\ GR�PHIC SCALE
IN
\ \ l 1 inch FEET 30 ) ft.
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LOCATION OF
LEGEND
LEGEND
LIMITS OF LAND DISTURBANCE
SAF SAFETY FENCE PER VESCH 3.01
DIVERSION DIKE
CE CONSTRUCTION ENTRANCE PER VESCH 3.02
BOUNDARY LINE
0 0 o
SILT FENCE
SF SILT FENCE PER VESCH 3.05
DIRECTION OF FLOW
0INLET PROTECTION PER VESCH 3.07
653.75
PROPOSED CONTOUR
M E ■ ■ ■ ■
DRAINAGE DIVIDE
DD DIVERSION DIKE PER VESCH 3.09
SOILS LINE
SB SEDIMENT BASIN PER VESCH 3.14
MANAGED SLOPES
OP OUTLET PROTECTION PER VESCH 3.18
PRESERVED SLOP
B/ SOIL STABILIZATION MATTING VESCH 3.36
EAM BUFFER
OPEN SPACE PRESERVATION
NOTE: TOTAL LIMITS OF DISTURBANCE PROPOSED WITH
Lic. No. 035791,E
11/5y k4
THIS PLAN = 7.09 ACRES. N
In
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PROPOSED DIVERSION BERM. \ / \ \ \ \ \ \• \ \\ \ \ \ \\ \
CONTRACTOR SHALL ENSURE
POSITIVE SLOPE MAINTAINED,
18" BERM PROVIDED. BERM
STABILIZEDSHALL BE FIRST STEP NDISTURBANC
EXISTINIG PRESERVED
J � CE
iz'x7o' MISTEEF SLOPES (TYP.)
I 1�
N � � ° ° \ � �� \ 1 ` I
S
I TALL \�\\ .r,
° ASE II
TROACTOR SHALL INSTAL CGT
RIOHF WAY DIVERSION WI HTH28=5.31 BC.CONSTRUCTION OF PHASE II OF CW=O.C5
+ 75\:S\TREA\M\ BUFFE
R
o DEVELOPMENT. THE MOUNTABLE DIVERSION \
� \
BERM SHALL BE RESTORED ATTHE�NDOF Tc=lo.8 MIN.
EACH DAY & PRIOR,YO WERTHERJI�ENTS
\ \
\ \
/. 1 I �� � \✓ /� APPROVED
D DOTEW-i\
/ CLASS i RIPRAP \ l
W/FILTER FABRIC
/' \ \ \ • \ �\ \ OUTLET PROTECTION
Qio=1.8 CF
I TP ® 40-� \ . V10-10.3 FPS
- L=8'; D z.5 / _ 's- v
♦ I Afig \ Wi=3xi.z5' 3.75 A A \ \ / / / � \� \
\Wz-8+i.z5' g.z5'/ _ DRAINAGE DIVIDE (TYP.)
� \
\ \ \
\ 32' OF 015" HEAVY-DUTY,
\ I FLEXIBLE PIPE TO
CONVEY
PROPOSED I I I DIVERSIONIF O OIPRAP \- 3'� \ / / / / \ TP
\ STOCKPILEAREA. - �� V A - / �� / VA VA VA\
SHPILAR - LINED OUTLET APPROVED \
'SURROUNDED BY PROTECTION& \
RIPRAP 5 I
SLT FENCE-
SEDIMENTTRAP#i
\ \ ♦. NO SCALE \ \ \ - 8 e \ \ \\
I
1
EXISTING MANAGED \ \ - \ APP ED V EC-1 L. I \ \
' L \ IP � � APPROVED VDOT EC-1 CL. I RIPRAP J� \
STEEP SLOPES (TYP.) \ \ 45'7 3 5; 5� \\
Z /APPRIVED DIVERSION BERM.
zi r� ) r� �\ •� \ / ° I ` , _p �/ / / CONTRACTOR SHALL ENSURE' \ \ \
POSITIVE SLOPE MAINTAINED,
/18' BERM PROVIDED. BERM
�� SHALL BE STABILIZED AS
\ STi �� \ -. ` / `� ^';T STEP IN DISTURBANCE f A \
\ \ Area=0.77 aC. �� i APPROVED \ TS \
� \ Cw=O.35
Tr-5 MIN. � v V / / ' V ♦ ��� v — � / / / � s
/
°C v ♦� �\V�\\�\\�� \\�\ �♦�v_�� v� TS
_ \ \/M
TS _�� A \VA\\\\ \\�� VAS\ V �� _ �` — — DC / \� /
\ T
I
SF LIMITS OF DISTURBANCE, TYP., TOTAL\\ \ \ � x—" �■ - _ _ � \ � _ \ --- — � � \' \\ � ( \\ \\
AREA=7.53 ac.TREE PROTECTION SHALL BE _ -
_
PLACED ON LOD LINE IN FIELD _- � `fix � - --_— • \^`-'`n \\\ \�
25' STREAM BUFFER
I GRAPHIC SCALE \ \
\ 30 15 30 60 120 A _ SAF
IN FEET
1 inch - 30 1L.
N N
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JOB NO.
152118
SCALE
III =30'
SHEET NO.
5
Lj
\ CONCRETE WASH ESC PHASE III SEQUENCE OF CONSTRUCTION FOR PHASE II OF THIS DEVELOPMENT (LOTS 29-34 & ITS INFRASTRUCTURE):
OUTAREA • y 1. THE CONTRACTOR SHALL BEGIN THE PHASE 11 (LS 29-34 & IS CONTRACTOR HALL MAINTAIN THE ESC PHASEOIITDOWNHIILLTDIVERS ON AS LONG )AS POSSIBLE. THIS WILLLFENSURE DISTURBED AREAS A ERDIRECTED E
I ESC PHASE III BY MODIYING THE CONSTRUCTION ENTANCE. TH
WASH RACK I . � • --- \_� PROPERTY LINE (TYP.)
--- ---- -- INTO SEDIMENTTRAP #1 DURING THE INITIAL PHASE III GRADING OPERATIONS.
2. IF FILL DIRT IS REQUIRED TO BE IMPORTED TO THIS SITE, OUTSIDE OF THIS PROJECT's PERMITTED AREA, THEN IT SHALL BE OBTAINED FROM AN
APPROVED PROVIDER OR SHALL ORIGINATE FROM A BORROW SITE THAT IS COVERED UNDER A SEPARATE VSMP PERMIT. UNo.035791
`
\ • 1 3. DURING THIS ESC PHASE III, THE CONTRACTOR CAN BEGIN EXPANDING THE GRADING AND FILLING OPERATIONS. WHILE THE GRADING IS UNDERWAY
• / �� I I I THE CONTRACTOR CAN BEGIN INSTALLING THE PHASE II (LOTS 29-34) UTILITIES. THIS INCLUDES WATER, SANITARY SEWER AND STORM SEWER. THE PORTIONS OF THE PHASE II STORM SEWER SYSTEM INSTALLED WILL BE BLOCKED DURING ESC PHASE III TO ENSURE RUNOFF IS DIRECTED INTO TP I l _ SEDIMENTTRAP#1. THIS WILL CONTINUE TO ENSURE DISTURBED AREAS ARE TREATED IN SEDIMENTTRAP #1. ASA BACKUP PLAN, AT ANY POINT APPROVEDpp) _ DURING CONSTRUCTION THE ESC INSPECTOR RESERVES THE RIGHT TO REQUIRE THE ACTIVATION OF THE PHASE II YARD DRAINS AND STORM SEWER.12x7o MIN. ST2 .* �„ THE ACTIVATION OF THESE INLETS WILL DIRECT RUNOFF INTO APPROVED SEDIMENT BASIN #1. PRIOR TO THE CLOSING OF THE PROJECT, THE
V CONTRACTOR SHALL CLEAN THE STORM SEWER AND CONFIRM ITS STRUCTURAL INTEGRITY WAS MAINTAINED. ALL INLET PROTECTION SHALL BE
I I . • a • . I I I \ \� \ \ INSPECTED AFTER EACH RAINFALL EVENT AND REPAIRS SHALL BE MADE AS NECESSARY. IF THE STONE FILTER BECOMES CLOGGED WITH SEDIMENT SO
. THAT IT NO LONGER ADEQUATELY PERFORMS ITS FUNCTION, THE STONE MUST BE PULLED AWAY AND CLEANED AND/OR REPLACED.
4. WITH THE INSTALLATION OF THE SITE UTILITIES & DRAINAGE STRUCTURES ALREADY UNDERWAY, THE CONTRACTOR SHALL CONTINUE THESE
J / •• ■ •/■ \ \ \ \ \� \\ \ \\ INSTALLATIONS AND CAN ROUGH GRADE THE LOTS AND THE ALLEY UP TO SEDIMENT TRAP # 1's 2:1 TIE-IN GRADES. ONCE THE BULK OF THE ALLEY IS
AT ROUGH GRADE, THE CONTRACTOR SHALL INSTALL THE CURB, TERMINATING IT AT SEDIMENT TRAP #1's 2:1 TIE-IN GRADES AS SHOWN. INSTALLING
\ \ \ \ \ THE CURB IN THIS MANNER WILL ALLOW IT TO FUNCTION AS A DIVERSION, DIRECTING UPLAND RUNOFF INTO A TEMPORARY SLOPE DRAIN AND
\ ULTIMATELY SEDIMENT TRAP #1. ANY ESC MEASURES THAT ARE DISTURBED WITH THE INSTALLATION OF THE ALLEY SHALL BE RECONSTRUCTED AT
THE END OF EACH DAY TO ENSURE THE SITE IS PROTECTED FROM RAINFALL EVENTS.
LOCATION F / \ \ \S \ 5. ONCE THE MAJORITY OF THE SITE IS CLEARED AND ROUGH GRADED, MINUS THE SOUTHERN PORTION OF THE ALLEY, THE CONTRACTOR SHALL
O\ \ \ \ . \� \ TEMPORARILY STABILIZE THE UPLAND AREAS ON THE SITE WITH TEMPORARY SEEDING AND STRAW MATTING. THE CONTRACTOR CAN ALSO BEGIN TO N
FUELING AREA Ln
UPON PERMISSION
RESIDENTIAL BUILDINGS ONCE THE LOTS ARE C ROUGH GRADE. in
7. UPON PERMISSION AND AUTHORIZATION FROM THE ESC INSPECTOR, THE CONTRACTOR MAY BEGIN THE CONVERSION OF TEMPORARY SEDIMENT o
LOCATION OF PORT -A -POTTY / \ \ \ l \ \ \ TRAP #1 TO A PERMANENT DETENTION BASIN. THE CONTRACTOR SHALL INSTALL THE RETAINING WALL ADJACENT TO THE SEDIMENT TRAP & -�
— UMPSTER \ \ \ \ \ \ \ \ CONCURRENTLY REGRADE THE TRAP TO THE FINAL CONTOURS SHOWN ON THE SWM FACILITY'B' DETAIL DEPICTED ON SHEET 10 & THIS SHEET. WHILE J w
\S THE TRAP IS BEING REGRADED THE CONTRACTOR SHALL INSTALL THE PERMANENT RISER, BARREL & SPILLWAY TO MINIMIZE FUTURE DISTURBANCES. a
THE RISER AND ITS LOW -FLOW ORIFICE SHALL BE TEMPORARILY PLUGGED WATERTIGHT AT THIS TIME AND THE REGRADED FACILITY SHALL FUNCTION
AS A SEDIMENT TRAPPING DEVICE UNTIL ALL UPLAND AREAS ARE STABILIZED.
Co
8. WHILE THE RETAINING WALL ADJACENT TO SEDIMENT TRAP #1 IS BEING INSTALLED, THE CONTRACTOR SHALL BACKFILLTHE AREA BEHIND THE WALL v, O z
AND SHALL ROUGH GRADE THE FINAL PORTION OF THE ALLEY. ONCE THE LAST OF THE ALLEY HAS ACHIEVED ROUGH GRADES, THE CONTRACTOR CAN Z a
FINISH THE INSTALLATION OF IT, ITS CURB AND THE REMAINING DRIVEWAYS. WITH THE CONSTRUCTION OF THE ALLEY, THE CONTRACTOR MAY ELECT O O
TO DELAY THE INSTALLATION OF THE FINAL TOP COAT OF ASPHALT UNTIL THE CONSTRUCTION OF THE LOTS HAS BEEN COMPLETED. THIS DELAY WILL z O
\ \l REDUCE THE RISK OF DAMAGE TO THE ASPHALT BY CONSTRUCTION TRAFFIC. H d
• a \ \ \ \�\\ 9. THE CONTRACTOR SHALL CONTINUE TO CONTROL AND PROTECT THE SITE FROM RUNOFF WITH TEMPORARY STABILIZATION MEASURES AT LOCALIZED H
'I
AREAS THAT ARE NOT STABILIZED. THESE MEASURES INCLUDE TEMPORARY SEEDING AND STRAW MATTING SILT FENCE AND DUST CONTROL
\ DC l \ \ PROTECTION. THE CONTRACTOR SHALL USE PERMANENT STABILIZATION OF THE FINE GRADED DISTURBED AREAS. PERMANENT OR TEMPORARY SOIL
STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN 7 DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY w
SOIL STABILIZATION SHALL BE APPLIED WITHIN 7 DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT W
\ (UNDISTURBED) FOR LONGER THAN 14 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE
LOT 29 �. S \ THAN 1 YEAR.
10.ONCE THE TRAP IS FULLY CONVERTED AND THE SITE's FINAL GRADES ARE PERMANENTLY STABILIZED, INCLUSIVE OF SWM FACILITY'B', THE
LOT 30 \ I \ • ' \ CONTRACTOR CAN ACTIVATE THE RISER & LOW -FLOW ORIFICE IN SWM FACILITY W AND REMOVE ANY REMAINING ESC MEASURES. THIS IS INCLUSIVE
LOT 3i \ 1 \ / OF PERIMETER SILT FENCE, TREE PROTECTION, ORANGE SAFETY FENCE AND INLET PROTECTION. NO ITEM SHALL BE REMOVED, THROUGHOUTALL
IP - PHASES OF CONSTRUCTION, UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE ESC INSPECTOR GIVES PERMISSION. CONTRACTOR SHALL
STABILIZE ALL AREAS OF THE SITE IN ACCORDANCE WITH EROSION AND SEDIMENT CONTROL REQUIREMENTS.
11. THROUGHOUT ALL PHASES OF CONSTRUCTION, THE CONTRACTOR SHALL MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA
\ IP IP I \ 3X \ \ \ / EROSION AND
SEDIMENT
EROSION CONTROL
HANDBOOK,
REMOVINGCONTROL
ONLY BOOK. WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE
.e
WITH
VIR
AND
NT
/ �, 12. THROUGHOUTALL PHA E F CONSTRUCTION, ALLTEMP RARY EROSIONAND SEDIMENT CONTROL MEA RE HALL BE REMOVED WITHIN DAYS
\ \
CE \/ � � \ \ \ \ \ PHASES 005MEASURES 5 0 30
\ EXISTING PRESERVED AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL r1i r-4
PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES N
L a0o
STEEP SLOPES (TYF'.) - .
SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION.
�� \ \ �v\
IP - / \ \ 75 STREAM BUFFER \
ONCE THE BULK OF THE ALLEY IS AT ROUGH GRADE, THE CONTRACTOR .-°�- � \ � ( \ � � �\ \ �"
SHALL INSTALL THE PROPOSED STORM SEWER & CURB. THE CURB A
\ . ------ INSTALLATION SHALL TERMINATE AT SEDIMENT TRAP#i's 2:1 TIE-IN GRADES. / RO
- \ INSTALLING THE CURB INTHIS MANNER WILL ALLOW ITTO FUNCTIONASA APP VED II' /
. DIVERSION, DIRECTING UPLAND RUNOFF INTO THE TRAP. ALSO, THE PHASE III
. PROPOSED PHASE II DROP INLETAND YARD INLETS SHALL REMAIN BLOCKED / Area=S.o8 ac. \
* DURING CONSTRUCTION TO ENSURE SEDIMENT IS DIRECTED INTO TRAP #1. i
C o6 �
APPROVED Dv OTEW� 1�
( \ \ tk=--�\ _ M
/ \ CLASS i RIPRAP r \ \
� W/FILTER FABRIC \ -
L
OUTLET PROTECTION / \\\\\ \\ \\ \ N
--
Oso-2.8 CFS \
\ T'b 40 10.3 FPS
'L=8
Wi 3x1.z5'-3-75'
��� / DRAINAGEDIA/IDE(TYPJ�\ \ \
TS OP �Wz 8+1.z5'=9.z5' �
s�
I�
CN
\ 32' OF 0i5" HEAVY-DUTY, C ) Lu
FLEXIBLE PIPE TO � 'DL= iBV
IP CONVEY RUNOFF FROM
CURB DIVERSION TO
I
PRAP LINED OUTLET PPROV JG� \ Q J
PROTECTION & \ -z
PHA Q�� - Q
E II R 5 I 5
- SEDIMENTTRAP#z /
STi p �
Area=0.94 ac. \ SD \ . \ \ / \z . \ \ \\ LJJ w
Tc 5 MIN. �.. \ , `. \ •• EXISTING MANAGED \ \ / \� IP \ / \ 'APPROVED VDOT EC-\i CL. I RIPRAP \ \\ J z
�1 i STEEP SLOPES (TYP. A 4.5'; 3.5; 5' r —
I AP \ \\ WRIVEDIVERSION Iz—
/ > iCONTRACTORSHALLENU<j
POSITIVESLOPE MAINTAINED, \ ~ Lu
DC // / "' BERM PROVIDED. BERM
IALL BE STABILIZED AS A V \ V O
'ST STEP IN DISTURBANCE 1 0
APPROVED TS // � PS Q L
/\l \ \\ 1 it i O z
TS LLI (n
— \ — I- of O
Cl) Lu
\ \ \\ D0 IP A A\\\VA\ \\ \ \ T �� // / A(SCALEDEPICTION �
(SCALE i"=30') 0
LLJ
TS _ AFTER THE SITE HAS BEEN R,6UdH GRADED TO THE CONTOUR$ SHOWM LLI
0NTHIS PLAN, THE c6NtRACTOR SHALL INSTALL THE RETAINING
\\ OT WALL ADJACENTTO THE SEDIMENT TRAP &CONCURRENTLY RE,GRAD \ + �� / • \ Q
\ \ 34 THE TRAP TO THE FINAL CONTOURS SHOWN ON THE SWM FACILITY'E{�\
DETAIL DEPICTED ON SHEET io&THIS SHEET. WHILE THE TRAP - \ \
\ \ BARREL
&SPILLWAY
TOY MINIMIZE
FUTURE
DISTURBANCES.
STIIME ANID THE\ \ _ \� / / —--_�T _� / \�'� `( \
' \ �,—
SHAL
E TEM
ARI
WATER
G HT
_ A
Lij
REGRADED FACILITY SHALL FUNCTION AS A SEDIMENT TRAPPING
DEVICE UNTIL ALL UPLAND AREAS ARE STABILIZED.
WITH TH STALLATION_NT OF TRAP i,RETAINING
THE C N CONTRACTOR
T V �-L<
\.. f i` ADJ NTTO SEDIM AREAB BEHIND
THE CONTRACTOR - _\' \\ \ \\
ALL BACKFILL THE AREA BEHIND THE WALL \ \-:- �x -- � -- � � \ `�\ /
�• SF ALLOWING THE ALLEY TO ACHIEVE ROUGH GRADES. LIMITS OF DISTURBANCE, TYP., TOTALTHE LAST OF THE ALLEY HAS
• • INSTALLATIONDE ONTRF IT,A TOR CA AND THEEVED REMAINIUGH AREA= dP ACED ON LODILINE NAFIELD \ \� ~ - ---, --- -- - / X - - �.. — ----- \ B7 % -� \ \\ O
753 \ a1 — — �� �� �1 \ N
� \ DRIVEWAYS, AS DEPICTED ON THIS SHEET. � � � DD \\I
, x�w�
25' STREAM BUFFER
GRAPHIC SCALE JOB NO. Ln
_ sAF
30 15 30 60 120 A � V �_ / � 152118
SCALE
( IN FEET
1 I inch = 30 ft.-
\
\ + \ 5A
SEDIMENT BASIN #1
SCALE: 1"=20'
IF
M
OF D
P D-
LA 1
ERT TE
I L
DE
MO (L
SEDIMENT TRAP #1
SCALE: 1"=20'
SEDIMENT
I
32'OF 0i5" HEAVY-DUTY, FLEXIBLE I I
PIPE TO CONVEY RUNOFF FROM TSD 1 1
DIVERSION TO RIPRAP LINED OUTLET \
PROTECTION'& SEDIMENTTRAP #i
�O 1 \ 1 1 11-t..
------- STs SF
\ \ \ I Sediment Trap 1 design
EXISTING MANAGED
STEEP SLOPES (TYP.
+
g WIDEVDOT TYPE I RIPRAP LINED\ + \
OUTLET PROTECTION CHANNEL IN
ACCORDANCE WITH VESCH SPEC. 3.19.
CHANNEL TO BE z8" DEEP WITH 3:1 SIDE
SLOPES. SEE CALCULATIONS PACKET
FOR ADDITIONAL INFORMATION.
drainage area (acres) (<3) 0.96 11' 1 °"R"iA"I I . A \ \A
trap volumes:
ORIGINAL CREST OF STONE WEIR yy„AgE•
elevation (ft) area (sf)
volume(cy)
GROUND
431.00 53.0
0.0
E".
- - 77
71
432.00 156.0
3.7
DRY STORAGE OR
YAAVRE
434.00 524.0
27-6
436.00 1013.0
83.5
437.00 1295.0
126.1
WET STORAGE
438.00 1603.0
179.7
CLOTH
anG NAL
CROUNO
\FILTER
ELE ..
wet storage:
wet storage required (cy) (67*DA)
64.3
-SEE PLATE 3.13-1 COARSE AGGREGATE•'
`LASS I RIPRRP
bottom of stone weir (ft)
435.3
wet storage provided at this elevation (cy)
64.7
slope of wet storage sides
2:1
weir length (ft) (6xDA)
5.8
dry storage:
bottom of trap elevation (ft)
431
dry storage required (cy) (67*DA)
64.3
bottom trap dimensions:
5'x18'
crest of stone weir
437.0
top of dam elevation (ft)
438
dry storage provided at this elevation (cy)
64.7
top width of dam (ft)
2
slope of dry storage sides
2:1
top trap dimensions
32'X66'
Sediment Basin #1 Design
MIN.T WI SPILLWAY CREST OF EMERGENCY
2'WITHOUT SPILLWAY
drainage area (acres)
5.31
DESIGN HIGH WATER
basin volumes: (using 2' contour intervals)
(25-YRSTOft ELEV.)
elevation (ft) contour area (sf)
volume (cy)
402.00
610.0
0
MIN 1.0•"-
404.00
1617.0
79.5
RISER CREST
406.00
2749.0
239.4
DRY s OWE� E RING
408.00
3998.0
487.8
• WET • STORAGE
410.00
5349.0
832.8
412.00
6800.0
1281.7
SEDIMENT CLFANOUT POINT
� �-T1 STORAGE EDUCED
wet storage required (cy) (67*DA)
355.8
design high water (ft)
411.00
dewatering orifice elevation (ft)
406.9
top of dam (ft)
412.00
wet storage provided at this elevation (cy)
355.8
top Width of dam (ft)
8.0
available volume before cleanout (cy) (min.
34*DA)
180.5
bottom of basin (ft)
402.00
cleanout elevation (ft)
405.3
approx. bottom dimensions:
121x112'
distance from cleanout to orifice (ft) (> V)
1.68
upstream face slope:
2:1
downstream face slope:
3:1
dry storage:
dry storage required Icy) (67*DA)
355.8
baffles:
NO
principle spillway crest (ft)
409.67
length of flow, L (ft)
134
dry storage provided at this elevation (cy)
420.0
effective width, We (ft)
46
diameter of dewatering orifice (in)
4.0
L / We (baffles not required if > 2)
2.88
diameter of flexible tubing (in) (orifice+2*)
6.0
collars:
YES
runoff.
depth of water at spillway crest (it)
7.67
C (use 0.45 for bare earth)
0.65
slope of upstream face (Z:1)
2:1
tc (min)
10.8
slope of barrel (Sb)
1.33%
1 2yr 4.0
Q 2yr
13.8
length of barrel in saturated zone (Ls)
48.61
1 25yr 6.0
Q 25yr
22.8
number collars required
2
dimension of collars
4.4x4.4'
principle spillway:
available head (ft)
1.00
emergency spillway:
YES
diameter riser (in)
48
required capacity (Q25-Qp) (cfs)
7.8
spillway capacity, Qp (cis)
15.00
bottom width (ft)
33
diameter trash rack (in)
36
slope of exist channel (ft/ft)
33%
barrel length (ft)
75
minimum length of exit channel (ft)
17
head on barrel through embankment (ft)
10.67
crest of spillway (ft)
410.67
diameter of barrel (in)
15
SEDIMENT TRAP #2
SCALE: 1"=20'
CONCRETEWASH
OUTAREA
WASH RACK
0
AT
MV J
,i
°W w
Sediment Trap2 design
drainage area (acres)(<3) 0.1
trap volumes:
elevation (ft) area (sf) volume(cy)
�j 466.00 327.0 0.0
467.00 519.0 15.5
468.00 736.0 38.7
wet storage:
Wet storage required (cy) (67*DA) 6.7
bottom of stone weir (ft) 466.5
Wet storage provided at this elevation 1 7.8
slope of wet storage sides 2:1
dry storage:
dry storage required (cy) (67*DA) 6.7
crest of stone weir 467.0
dry storage provided at this elevation 1 7.7
1992 3.15
TEMPORARY SLOPE DRAIN
EARTHEN DIKE PROVIDE INLET
CORRUGATED METAL (COMPACTED) PROTECTION
EXTENSION COLLAR
A
WATERPROOF SEAL
241
A I '
PROVIDE OUTLET F
PROTECTION ° STANDARD FLARED END SECTION
I
I
1-
SECTION VIEW
NOTE SEDIMENT MAY BE CONTROLLED AT OUTLET IF UPLAND PONDING
WILL CREATE PROBLEMS
EARTHEN DIKE
(COMPACTED)
� Dt+6"
T 1T I
IIIil 1111ll 1111 II 11111W
SECTION A - A
Source: Va. DSWC Plate 3.15-1
ORIGINAL_
GROUND
CREST 0111081 WEIR
1• YAR BE
LWRU&E
DRYSTORAGE -
N
YMV9E
N
WET STORAGE A, MAIL`
(EXpYARED)
TLTER CLO1N
GRI
amwD
6N.
-SEE PLATE 3.13-1
COA6E AGGREGATE"
CUSS I RIPRAP
weir length (ft) (6xDA)
0.6
bottom of trap elevation (ft)
466
bottom trap dimensions:
9'X40'
top of dam elevation (ft)
468
top width of dam (ft)
4
U
V OF
OTTY
I�
Lic. No. 035791
11/5/21 ,I 'j
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JOB NO.
152118
SCALE
111 = 20'
SHEET NO.
6
SECTION 5
4to] :1►IFiUd/_llIa:tAi/_1►ETA a►IFi1a►k9»_1►
/
PRE -DEVELOPMENT SCENARIO (SC L 0 I1'�0301) \\ D.A.'A'Pre-DevelopmentImpervious Areas (Water Quantity)
- Existing Structures 5,328 sf
Existing Drive & Walkways 12,532 sf
EXISTING TREE LINE (TYP.) Total = 1sAre sf
D.A.'A' Pre -Development Pervious Areas (Water Quantity)
Existing Woods 86,500 sf
Existing Grass 70,334 sf
D.A.'B'Pre-DevelopmentImpervious Areas (WaterQuantity)
Existing Structures 0 sf
Existing Drive & Walkways 0 sf
Total = 0 sf
D.A.'B'Pre-Development Pervious Areas (Water Quantity)
Existing Woods 23,830 sf
W 1 1 I I \ \ Existing Grass 21,908 sf
Ic� 22 hrs.
I 1 \
d OF OLF w,�ELEV.=3.5' (Tc=0.1 hrs.) &
I � � OF OF w/ 0 ELEV.=63' (Tc=Q.04 hrs.)
' �� �� �A �
D./A. \ 1 \ \\\\ \\ \\\
AA, \v� \ ��— CN ac
� I �v
\
o — i
/
�N
A
1
EXISTING PRIES ✓ / ��
STEEP S-LOP�( YPP.. / /
o A VA\ VA \
1
\ I CN=58
0 I Tc=o.io hrs.
o�i
\\ \ iLOCATIONOFPROPOSED-
the \\ \\ \SWM FACILITY!B
LOCATION OF PROPOS7 SWM/FA�IL11
\ A XISTING MAN GED
S�TEEP,,S OPES (TYP.�V III
io
\ PE AVE EN D ERMINED LESS
V AN 25% D NEW TOPOGRAPHIC A — _ A /
EXHIBIT & URVEY PROVIDED BY
\ ROOD BUSH, GALE
Tc= 0.10 Ihrs. ND ASSO TES AS PERMITTED _ —
in. \ \ \ d — — \
U ER SECTI N D. \ ' �� — — /
100' OF OLF w/ A ELE .=16' c— .10 ) \ 3 7.4(b)h (TYPICAL) — — — _
42' OF OF w/ 4 ELEV. 10 ( cG0. 1 =ago \
�) � \ \ GRAPHIC SCALE 1►"' - \ �
50 0 15 30 60 126
\ APPROVED STREAM � �a�� �_� � � — _ F,111111 it111111��j�
/ 1 BUFFER (TYP.) \
V ( IN FEET
1 inch = 30 IT, EXISTIN_G"PRESE�V�
\ STEEP SLOPES (TYP
MANAGED SLOPES
PRESERVED SLOPES
STREAM BUFFER
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JOB NO.
152118
SCALE
1"=30'
�- SHEET NO.
7
POST -DEVELOPMENT SCENARIO &
BEST MANAGEMENT
PRACTICE PRESERVATION EASEMENT
APPROVED Watershed Summary for DA'A'
(Per Approved Amendment #3 to WPO 201600058)
Area,
1-year Flow, 2-year Flow,
10-year Flow,
CN
ac.
cfs
cfs
cfs
Pre -Development DA'A'
62
4.17
2.41
2.88
7.70
Post -Development DA'A'
80
4.17
0.66
1.12
7.17
D.A. 'A' Pre -Development Impervious Areas (Water Quantity)
ExistingStructures 5,328 sf
Existing Drive & Walkways 12,532 sf
Total = 17,860 sf
D.A. 'A' Post -Development Impervious Areas (Water Quantity)
FRaway29,600 sf
alks 19,300 sf
ngs 46,650 sf
95,550 sf
AMENDED Watershed Summary for DA'13'
(*Per Approved Amendment #2 to WPO 201600058)
NOTE: This Amendment #4 releases post -development flows below the previously approved peak post -development flows.
Area,
1-year Flow,
2-year Flow,
10-year Flow,
CN
ac.
cfs
cfs
cfs
*APPROVED Pre -Development DA'B'
58 1.05
0.36
0.67
2.34
Q�
*APPROVED Post -Development DA'B'
85 1.05
0.48
0.55
2.24
3
AMENDED Post -Development DA'B'
73 1.05
0.32
0.36
1.95
=�Ir
*APPROVED D.A. 'B' Pre -Development Impervious Areas (Water Quantity)
Q 3
Existing Structures 0 sf
/
Existing Drive & Walkways 0 sf
Total = 0 sf
3 g
AMENDED D.A. 'B' Post -Development Impervious Areas (Water Quantity)
Roadway 6,474 sf
Sidewalks & Driveways 1,217 sf
14,921 sf
APPROVED Impervious Areas for Water Quality
(I otal unslte Impervious Areas)
Phase I Roadway
29,600 sf
Phase II Roadway
9,534 sf
Phase I Sidewalks & Driveways
21,188 sf
Phase 11 Sidewalks & Driveways
5,964 sf
Phase I Buildings
63,700 sf
Phase 11 Buildings
10,995 sf
AMENDED Impervious Areas for Water Quality
/ " //
Total= 130,684 sf
NOTE: This Amendment #4 proposes less impervious areas \
than the previously approved plans. Therefore the prior /
nutrient credit purchase and SWM Preservation Easements /
remain sufficient to meet the minimum water quality
requirements.
I/
1LE OF 1'=�3Q')� Qg APPROVED Tc= 0.18 hrs. MANAGED SLOPES
���� 100' OF OLF w/ A ELEV.-3.5' (Tc-0.18 hrs.)
• �•�� PRESERVED SLOPES
87 OF CF w/ A FLFV.=S (Tc > 0.01 hrs.)
STREAM BUFFER
��� \� ♦♦♦ ) 4�75' OF CF 14 ft/s (Tc > 0.01 hrs.)
/ ♦ i J - ) I I APPROVED
x _ _ - - - ♦ \ \ ` LIMITS OFTREE
I ♦♦� / v / - - ♦ \ \ V A I \ \ \CCLrINNG (TYP.)_
♦ I
Vr ) V A \ \ V VARICK STREET, MARIN COURT, AND THE
O v ♦ ♦ / \ VAS \\ \ V A \ SURROUNDING LOTS ARE NOT PART OF
/ �� \ ♦ / / \ \ \ \ THIS SET OF PLANS. THE PROPOSED SWM
v / ��� v ��1♦ / I V \ \ V A V�` VA \ V A FACILITIES & BEST MANAGEMENT
�� / _ \ - ♦ \ \ \ \ \ \ \\\\ \ PRACTICES ARE PROPOSED WITH THIS
OAF A V AA ��1, VAVA s \ SET OF PLANS & PROVIDE TREATMENT
+ FOR THE ROADWAYS AND SURROUNDING
w\ �- _� / n ��` �� \♦ : \ \ \ \ I ` \ \\\ LOTS.
\���� - \ �� 1♦A \ V A V V A,\ \V �Vs \ V A
\ \ ROVED DA'
♦- / \ vN=8o
♦♦ c=o.i8 hr . \ \ ♦♦� V V v vv- vvv V v v
`� � � \ � \ V1♦\ A 1 I V A \ \ V� \VA V A \
//� + V A v \ V ♦ V A\ 1 A �y �\ SOREST &OPEN SPACI
\ � \ �♦ \ \ F�MENT\(DB 04967, PG
x 1 A ♦ ji��3 ). EA\SEMENT IS A BES
/ _ �♦ \ \ _ X �L X / \\ \\ Q 1 yy rNiP MENT-PRACTICE &
♦ ♦ ; s \ �M HIBI S FUTURE
�/ 1♦ -♦♦♦� I � _ _ A V ♦jl ( A \ b LO� MENT&
I',. - i ♦� +' / - - - ��/ 1 V 1 AV A A \'\ 1 b�\s RBANCES
�' • � � � � '� � X � � _ � � � V A ♦i \ __ 'I A \ \ \ Piz \�vE� �
\ C _ ♦ + \ \ ,Sj / / / / / / \ �1 \ _ S� E�M BUFFER TYP.)
\ \ \ V ♦ \ V A - + / V/ / / / ♦j A V A \
/ / ♦ A ✓� A
I /
r� r� A V A ♦ V / / \ \
DA B
1 05 ac.
►\, I CN= -cr-7- P
I I c=0.10 Fhr
/ 1 I
AMENDED (UNCHANGED) Tc= 0.10 hrs,
50' OF OLF w/ A ELEV.=4' (Tc=0.07 hrs.)
& 275' OF CF w/ A ELEV.=22' (Tc= 0.01 hrs.) \ \\
(MIN. SCS Tc=0.10 hrs.)
I
\ I\
v
X
i
i
y
APPROVED STORMWATER MANAGEMENT NARRATIVE: THE PROPOSED PLAN PROVIDES STORMWATER TREATMENT FOR THE CONSTRUCTION OF
THE DUNLORA LOTS (UNDER SEPARATE REVIEW). THIS VSMP PLAN ADHERES TO PART IIB / \
REQUIREMENTS FOR STORMWATER MANAGEMENT. THE SUBMITTAL PACKAGE DOCUMENTS
ASSOCIATED WITH THIS PLAN SHOW WATER QUALITY COMPLIANCE BEING MET THROUGHTHE BEST
D A
NUTRIENT CREDIT PRACTICEANAGEMENT PPRESERVATION,EN SPACE REDIT PURCHASE.THIS PLANALSO COMPLIES WITHP RT IIB REQUIREMENTS BY
THE ATTENUATION OF FLOWS IN THE DETENTION BASIN. PLEASE SEE THE ATTACHED
STORMWATER MANAGEMENT CALCULATIONS PACKET FOR THE FULL DETAILS OF PLAN 1
COMPLIANCE. \ \ \\ \ I
General Construction notes for Stormwater Management Plans \ \
i. All dams and constructed fill to be within 95%of maximum dry density and 2%of 3
optimum moisture content. All fill material to be approved by a geotechnical engineer. A
geotechnical engineer isto be present during construction of dams. \ \ \ \ \\
2. Pipeand riser)oints are to be watertight within stormwater Management facilities. \ \ \n \
3. For temporary sediment traps or basins which are to be converted to permanent \ \ \ 1\ L
stormwater management facilities; conversion is not totake place until the site is �7 \
stabilized, and permission has been obtained from the County erosion control inspector. \ -
I \ \
I \ \
/ I \
L, /� � \\\ \� \♦♦V\� + �: '- \ //// _ -APPR V SHAPE >1 \
RIPR NED CHANNEL A I
DI TI RUNOFF IN
�/ � � � j � •• A v v ♦1 v v / x + TH S FACILI � �
yo
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♦v
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1 - / + / SWM FACILITY EASEMENT
/ I
_I
1 \ \ - - _ ♦� / / (DB 04967, PG 133-134)
\ \ `�� \ � \ � \ � \ \ \ \ � - - \ ♦ ♦ \ / /J / / / /��and n=
v EXISTING MANAGED-
L _ STEEP SLOPES (TYP.) A \ \ v v v v�/°V/ �♦ _ _� -� / / / /// / 111 i =I
\vE I TyN�P'RE VI VA\VAS ��-- �� - ■nII��j �� / )/ � 1
♦ A AS P �L � Vp
-4
v APPROVED SLOPES HAVE BEEN
DETERMINED TO BE LESS THAN 25%
♦♦ BASED ON NEW TOPOGRAPHIC EXH IT & _ ♦� _ a � / -
TI-Ii
♦ SURVEY PROVIDED BY ROUDABUSH, \\ \ 422� - - - ♦
42
GALE AND ASSOCIATES AS PERMITTED A A _ - -� -- - �\ ♦j / / / �I_ - - T
UNDER SECTION o. (b)h (TYPICAL)
\ \ \ \ - - - - - - - - - ♦ / / / rj '- - till-1
r�Itiilifai�
APPROVED STREAM \ _ - - _ - __ _ 1
BUFFER (TYP.) v - -_ �11-Z
GRAPHIC SCALE
30 \ 0 15 30 60 120 V -'
SWM FOREST& OPEN SPACE -
EASEMENT (DB 04967, PG 133-134) \ \ \ \ -
\ ( IN FEET ) COINCIDES WITH PROPERTY LINE-
i inch = 30 ft.
SWM FACILITY TO TREAT \ \ \
\ WATER QUANTITY (NOT QUALITY).
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JOB NO.
152118
SCALE
1"=30'
SHEET NO.
8
STORMWATER MANAGEMENT FACILITY 'A' DETAIL (SCALE OF 1"=30')
CONTRACTOR SHALL INSTAL LA i10+00. iL
I/ PROPOSED V-SHAPED VDOT CIL I - S
RIPRAP-LINED DIT�Iq (z.S' STON DEPTH)-
FILTER
WITH FABRIC UNDER MENTTO
CONVEY RUNOFF Tb THESW ,FACIL - 5
02=8.37 2F j12'Lm
/
I1( x V7i =4.118 FPS / --I
1 /
3'
/Q,Dy111Z CIF RIPRAP \1 \
+ /
I-,G- 0'91 FT SWALE
/ �q L'O _7%) NOSC.4LE
/4 -1i-I
-dr35�/ / / / / / / / y f 11 t
/ \ P�EPRCIV �-
/ APPROVED �SANITARYSEWER xl
/ /
LOT LINE S`WM FACILITY EASEMENT -
_ (DB 04967, PG 133-134)
J /PROPOSED GRADING WITH / IE
THIS AMENDMENT. GRADING EI
CREATESANEWRIPRAP // 11+00. O-t
LINED DITCH & EXPAN
\ BASIN'S VOLUM
_ _ 1
§ o
n
CONTRACTOR TO FILL & STABILIZE
THE EXISTING ERODED RIPRAP LINED
\\ CHANNEL IN THIS LOCATION.
ASBUILT CHANNEL TO THE P
CONTRACTOR TO REROUTE THE
I\ ALIGNMENT SHOWN,, LENGTHENINGD
& STABILIZING THE FLOW PATH. NEW
FLOW PATH : WIDTH RATIO= 120' : 43'
(OR 3:1).
's' l
r CONTRACTOR SHALL MAKE THE
FOLLOWING MODIFICATIONS TO THE RISER:
1. PLUG THE 04" ESC DEWATERING ORIFICE
4 WATERTIGHT (INV: 4o6.B3)
2. DRILL ONE (1) NEW 03.5" LOW -FLOW
- ` SWM ORIFICE(INV.=4o2.00)
. DRILL FOUR NEW 012"MID-FLOW
3 (4)
SWM ORIFICES (INV: 408.25)
4. INSTALL A WEIR PLATE OVER THE TOP
HALF OF THE BARREL's OPENING
5. INSTALL TRASHRACKS ON THE LOW -
AND MID -FLOW ORIFICES. SEE DETAIL ON
THIS SHEET, OR EQUIVALENT.
-� ASBUILT GRADING, GENERAL L ,._\ 'l l�l��llllll l_f�'ff�� .11=1i1 J li'�,/ -
-III-III-I - �� \
'•� CONSISTENT WITH -THE_ _ III -III-
-�. APPROVED PLAN. TYP. // !
\ - \'ate - CIII IIII- a �+400.00 s)
ASBUILT34�/1DE GRASS
EMERGENCYSILL�WAKRE
-LEVATION=410.j.(B'T P_OFDAM +67-99
ELEV.=412.00')\
ASBUILT 048'CL. III RCJE`-STANDkI P
w/ TRASHRACKS SHALL SERVEA�
THE RISER STRUCTURE. ASBUILT \ \ \ o v
RISER STRUCTURE RIM=409.70'. \ \\ f
ASBUILT 025" RCP BARREL (71.9 LF, 5=1.40 \ \
APPROVED VDOT EC-1 CLASSAI OUTLET P �ECTI�N
\ ,
INV. IN=400.90', INV. OUT=3gg.go') V7/GEOTEXTILE FILTER FABRIC UNDERIAYNI��i--
ASBUILT DIMENSIONS: L=16.5', W1=7.4',W2=18.9' \
BASIN NOTES:
1. STATEAPPROVED TRASH RACKS SHALL BE INSTALLED ON ALL ORIFICE OPENINGS.
2. A CONCRETE FOUNDATION SHALL BE INSTALLED ON THE RISER AS SHOWN & MEETING THE MINIMUM SPECIFICATIONS SET FORTH IN THE VESCH SPEC. #3.14.
3. CONTRACTOR AND CONSTRUCTION SHALL ADHERE TOALL OSHA REQUIREMENTS. ADDITIONALLY, SPECIAL ATTENTION SHALL BE GIVEN TO THE CONSTRUCTION
SHORING ASSOCIATED W ITH THE BIORETENTION BASIN EXCAVATION.
4. CONTRACTOR SHALL REMOVE SEDIMENT LADEN SOIL& GRADE THE BASIN TO THE CONTOURS SHOWN ON THIS SHEETATTHETIME OF THE TEMPORARY ESC
BASIN's CONVERSION TO A PERMANENT SWM FACILITY. CONTRACTOR SHALL ENSURE THE PERMANENT SWM FACILITY HAS A STABILIZED GROUNDCOVER, SUCH AS
GRASS OR OTHER FORMS OF VEGETATION, AND THE FACILITY FLOOR MAINTAINS POSITIVE SLOPE TO THE RISER STRUCTU RE's LOW -FLOW ORIFICE.
435 435
CONTRACTOR SHALL MAKE THE FOLLOWING MODIFICATIONS TO THE RISER:
1. PLUG THE 04" ESC DEWATERING ORIFICE WATERTIGHT (INV.=4o6.83 AB)
2. DRILL ONE (2) NEW 03.5" LOW -FLOW SWM ORIFICE (INV: 402.00)
3. DRILL FOUR (4) NEW 012" MID -FLOW SWM ORIFICES (INV.=4o8.25)
4. INSTALL A WEIR PLATE OVER THE TOP HALF OF THE BARREL's OPENING
5. INSTALL TRASHRACKS ON THE LOW -AND MID -FLOW ORIFICES. SEE DETAIL
430
ON THIS SHEET, OR EQUIVALENT.
430
APPRO
ED
ORIGIN
LEXISTI
RADIE
LOTGR
DING
\
(PRE-C
NSTRUC
ION)
425
425
420
420
ASBUILT
STIR. 1A
TOP
ALLHE
.14
PPROV
D04 8"
L. III RCP
10=421.611(15"
STANDPI
Ew/TRASHRACKS
SHALL
SERVEA
THE RISER
STRUC
TURE.
ASBUILT
048"RIS
R RIM
D -
f2^
Q 2= 8.
7 CF
ELEV.=4
9-7O�-
425
V = 4.
8 FPS415
RIP
3'
AP
Qro 11.13
CIFS
ASB
ILT34'
IDEGRA
SLINED
W
Dlo 0
91 FT
\
EME
GENCY
PILLWA
CREST
ELEVA
ION=41o.
'
ASBUILT
GRADING
WITH
- o
(8'T
POF DA
A ELEV.=412.00')
FT
PROPOSED
CONTRACTOR
SHALLI
STALLA
410
MDIFICATONS
PROPOSED
V-�
HAPEDV
OTCL.I
410
RIPRAP-LINED
ITCH (2.
;'STONE
DE
FILTER
ABRIC
X
TH) WITIi
UN
ERLAYM
NTTOC
NVEY
RUNOFF
TOT
ESWM FACILITY
.�.A
PPROV
TEMPO
A
^'
SIN TO BE
CONVERI
ED INTO
PERMAN
NT SWM
FACILITY
405
PROVIDI
G STORMWATER
\
405
N
TREATMENT
APPROVE
D FLOOR
GRADE E
EV.=402
oo'. CON
RACTOR
T
ENSUR
POSITI
SLOPE
0THERI
ERATA
LTIMES.
400
400
CONNE
TION SH
LL BE FIRMLY
EMI
EDDED 6
" INTO A
RE
INFORCE
18" THICK
CONCF
ETE FOU
ADATION
THAT IS
x
ND I B
IRIEDBELOWTHE
IMITSOF
THE BAS
NGRADING.
SBUILT
15"RCP
ARREL
Y4
INV.
395
I
=400.90',
INV.OU
99 90')
395
PPROVED
DOT EC-1
CLASS Al
UTLET PR
TECTION
w/ GE
TEXTILE
MILLER FAB
IC UNDER
YMENT,
3(�2
ASBUILT
DIMENSI
NS: L=16.5,
W1=7.4%
W2=18.9'
392
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10+50
PROFILE SCALES
1"=5' M
1"=5o'(H)
11+00 11+50 12+00 12+50
BASIN 'A'
13+00 13+50 13+75
DETENTION BASIN CONSTRUCTION NOTES:
FACILITY PLANTING SPECIFICATIONS:
1. THE DETENTION BASIN SHALL HAVE TURF GROUND COVER, SUCH AS GRASS OR SOME OTHER FORM OF A VEGETATIVE
GROUNDCOVER. LANDSCAPING BEYOND THIS IS OPTIONALAND IS NOT REQUIRED.
2. THE PROPOSED SIDE SLOPES OF THE BASIN SHALL BE A MAXIMUM OF 2A TO REDUCE THE RISK OF EROSION. THE PROPOSED
FLOOR SLOPES SHALL BE GRADED TO PROVIDE POSITIVE DRAINAGE AT ALL TIMES TO THE RISER STRUCTURE.
3. WOODY VEGETATION SHALL NOT BE PLANTED OR ALLOWED TO GROW WITHIN 15 FEETOF THETOE OFTHE EMBANKMENT NOR
WITHIN 25 FEET OF THE PRINCIPAL SPILLWAY STRUCTURE.
4. A VEGETATED BUFFER SHALL BE PROVIDED THAT EXTENDS AT LEAST 25 FEETOUTWARD FROM THE BASIN TOP OF DAM
ELEVATION. PERMANENT STRUCTURES (E.G., BUILDINGS, SHEDS, etc.) SHOULD NOT BE CONSTRUCTED WITHIN THE BUFFER AREA.
EXISTING TREES SHALL BE PRESERVED IN THE BUFFER AREA DURING CONSTRUCTION IF AT ALL POSSIBLE.
S. THE SOILS IN THE STORMWATER BUFFER AREAARE OFTEN SEVERELY COMPACTED DURING THE CONSTRUCTION PROCESS, TO
ENSURE STABILITY THE DENSITY OF THESE COMPACTED SOILS CAN BE SO GREAT THAT IT EFFECTIVELY PREVENTS ROOT
PENETRATION AND, THEREFORE, MAY LEAD TO PREMATURE MORTALITY OR LOSS OF VIGOR. AS A RULE OF THUMB, PLANTING
HOLES SHOULD BE THREE TIMES DEEPER AND WIDER THAN THE DIAMETER OF THE ROOTBALL FOR BALL -AND -BURLAP STOCK,
AND FIVE TIMES DEEPER AND WIDER FOR CONTAINER -GROWN STOCK.
6. AVOID SPECIES THAT REQUIRE FULL SHADE, OR ARE PRONE TO WIND DAMAGE. EXTRA MULCHING AROUND THE BASE OF TREES
AND SHRUBS IS STRONGLY RECOMMENDED ASA MEANS OF CONSERVING MOISTURE AND SUPPRESSING WEEDS.
CONTRACTOR REQUIREMENTS:
1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LAYOUT OF ALL WORK COVERED UNDER THESE PLANS,
2. LANDSCAPE CONTRACTOR SHALL REFER TO THE STANDARDIZED LANDSCAPE SPECIFICATIONS FOR THE STATE OF VIRGINIA FOR
ADDITIONAL INFORMATION. THE CONTRACTOR SHALL ABIDE BY ITS CONTENTS; HOWEVER ANY NOTES OR SPECIFICATIONS ON
THE PLANS SHALL SUPERSEDE THOSE OUTLINED IN THE SPECIFICATIONS MANUAL (COPIES ARE AVAILABLE FOR A FEE FROM THE
VIRGINIA CHAPTER OF THE AMERICAN SOCIETY OF LANDSCAPE ARCHITECTS, VIRGINIA NURSERYMEN'S ASSOCIATION, INC. AND
THE VIRGINIA SOCIETY OF LANDSCAPE DESIGNERS).
3. ALL PLANT MATERIAL SHALL MEETTHE MINIMUM SPECIFICATIONS AND STANDARDS DESCRIBED IN THE CURRENT ISSUE OF THE
AMERICAN STANDARD FOR NURSERY STOCK, PUBLISHED BY THE AMERICAN ASSOCIATION OF NURSERYMEN, 1250 STREET, NW,
SUITE 500, WASHINGTON, DC 20005.
4. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS IN THE FIELD AND NOTIFYTHE DESIGNER OF ANY VARIANCE FROM THE PLAN.
S. THE LANDSCAPE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE LOCATION OF ANY ONSITE UTILITIES (CALL MISS UTILITY
1-800-552-7001 BEFORE ANY EXCAVATION).
6. REFER TO THE APPROVED FINAL SITE PLANS FOR ANY DETAILED SITE INFORMATION.
7. ALL WORK SHALL BE COORDINATED WITH OTHER PARTIES.
8. PLANTS WILL BE PREPARED FOR SHIPMENT IN A MANNER THAT WILL NOT CAUSE DAMAGE TO THE BARK, BUDS, BRANCHES,
STEMS, OR OVERALL SHAPE OF THE STOCK. CONTAINER GROWN PLANTS WILL BE TRANSPORTED IN THE CONTAINERS IN WHICH
THEY HAVE GROWN.
9. ALL PLANT MATERIAL UNLESS OTHERWISE SPECIFIED SHALL BE UNIFORMLY BRANCHED AND HAVE A VIGOROUS ROOT SYSTEM.
PLANT MATERIAL SHALL BE HEALTHY, VIGOROUS, AND FREE FROM DEFECTS, DECAY, DISEASES, INSECT PEST EGGS, AND ALL
FORMS OF INFESTATION. ALL PLANT MATERIAL SHALL BE FRESH, FREE FROM TRANSPLANT SHOCK OR VISIBLE WILT. PLANTS
DEEMED UNHEALTHY WILL BE REJECTED.
10. ALL CONTAINER STOCK SHALL HAVE BEEN PROPAGATED IN A CONTAINER LONG ENOUGH FOR THE ROOT SYSTEM TO HAVE
DEVELOPED SUFFICIENTLY TO HOLD ITS SOIL. CONTAINER STOCK WITH POORLY DEVELOPED ROOT SYSTEMS WILL NOT BE
ACCEPTED.
11. PLANTS NOT INSTALLED ON THE DAY OF ARRIVAL ON SITE SHALL BE STORED AND PROTECTED BY THE CONTAINER. OUTSIDE
STORAGE AREAS WILL BE SHADED AND PROTECTED FROM THE WIND AND SUN. PLANTS STORED ON SITE SHALL BE PROTECTED
FROM ANY DRYING AT ALL TIMES BY COVERING THE BALLS OR ROOTS WITH MOIST SAWDUST, WET BURLAP, WOOD CHIPS,
SHREDDED BARK, PEAT MOSS, OR OTHER SIMILAR MULCHING MATERIAL.
12. THE OWNER RESERVES THE RIGHT TO SUBSTITUTE PLANT MATERIAL TYPE, SIZE AND/OR QUANTITY. ANY SUBSTITUTIONS MUST
BE APPROVED BY THE INSPECTOR INITIALLY, AND THEN THE DESIGNER.
13. MINOR FIELD ADJUSTMENTS MAYBE NECESSARY DUE TO SITE CONDITIONS (EX: ROOTBALL AND UTILITY CONFLICT). MAJOR
ADJUSTMENTS MUST BE APPROVED BY THE DESIGNER.
14. NO PLANTING SHALL OCCUR WHEN THE SOIL IS FROZEN.
15. PLANT MATERIAL SHALL BE PLACED IN EXISTING SOIL WITH EACH PLANTING PIT EXCAVATED TO A SIZE SUFFICIENT TO CONTAIN
THE ENTIRE ROOT BALL OR ROOT MASS, WITHOUT CRAMPING ROOTSTOCK.
16. THE CONTRACTOR SHALL MAINTAIN A ONE (1) CALENDAR YEAR 90% CARE AND REPLACEMENT WARRANTY FOR ALL PLANTINGS.
THE PERIOD OF CARE AND REPLACEMENT SHALL BEGIN AFTER INSPECTION AND APPROVAL OF THE COMPLETE INSTALLATION OF
ALL PLANTS AND CONTINUE FOR ONE CALENDAR YEAR.
17. THE CONTRACTOR IS RESPONSIBLE FOR REMOVAL AND DISPOSAL OF TRASH AND DEBRIS WITHIN THE LIMITS OF THE PLANTING
ON A DAILY BASIS.
18. THE CONTRACTOR WILL NOT BE RESPONSIBLE FOR PLANT MATERIAL THAT HAS BEEN DAMAGED BY VANDALISM, FIRE, OR OTHER
ACTIVITIES BEYOND THE CONTRACTOR's CONTROL.
FACILITY CONSTRUCTION
1. THE DETENTION BASIN MAY SERVE AS A SEDIMENT BASIN AND/OR TRAP DURING PROJECT CONSTRUCTION. IF THIS IS DONE, THE
VOLUME SHALL BE BASED ON THE MORE STRINGENT SIZING RULE (EROSION AND SEDIMENT CONTROL REQUIREMENTS VS.
STORMWATER TREATMENT REQUIREMENTS). INSTALLATION OF THE PERMANENT RISER SHALL BE INITIATED DURING THE
CONSTRUCTION PHASE, AND DESIGN ELEVATIONS SHALL BESET WITH FINAL CLEANOUT OF THE SEDIMENT BASIN AND
CONVERSION TO THE POST -CONSTRUCTION POND IN MIND. APPROPRIATE PROCEDURES SHALL BE IMPLEMENTED TO PREVENT
DISCHARGE OF TURBULENT WATERS WHEN THE BASIN IS BEING CONVERTED INTO AN DETENTION BASIN.
2. THE DETENTION BASIN SHALL ONLY BE CONSTRUCTED AFTER THE CONTRIBUTING DRAINAGE AREA TO THE POND IS COMPLETELY
STABILIZED, IFTHE PROPOSED POND SITE WILL BE USED AS ASEDIMENTTRAP OR BASIN DURINGTHE CONSTRUCTION PHASE,
THEN THE FACILITY WILL BE DEWATERED, DREDGED AND RE -GRADED TO DESIGN DIMENSIONS AFTER THE ORIGINAL SITE
CONSTRUCTION IS COMPLETE.
3. INSTALL E&S CONTROLS PRIOR TO CONSTRUCTION OF THE BASIN INCLUDING TEMPORARY DE -WATERING DEVICES AND
STORMWATER DIVERSION PRACTICES. ALLAREAS SURROUNDING THE BASIN THAT ARE GRADED OR DENUDED DURING
CONSTRUCTION SHALL BE PLANTED WITH TURF GRASS, NATIVE PLANTINGS, OR OTHER APPROVED METHODS OF SOIL
STABILIZATION.
4. CONTRACTOR SHALL EXCAVATE THE CORE TRENCH AND INSTALL THE SPILLWAY PIPE DURING THE ESC PHASE.
S. CONTRACTOR SHALL ALSO INSTALL THE RISER, OUTFLOW STRUCTURE AND/OR THE BARREL(s) DURING THE ESC PHASE TO ENSURE
THE TOP INVERT OF THE OVERFLOW WEIR IS CONSTRUCTED LEVEL AT THE DESIGN ELEVATION.
6. THE CONTRACTOR SHALLTHEN CONSTRUCTTHE IMPERVIOUS CLAY CORE EMBANKMENTAND ANY INTERNAL BERMS IN 8TO
12-INCH LIFTS AND COMPACT THE LIFTS WITH APPROPRIATE EQUIPMENT.
7. UPON COMPLETION OF THE EMBANKMENT GRADING, THE CONTRACTOR SHALL EXCAVATE/GRADE UNTIL THE APPROPRIATE
ELEVATION AND DESIRED CONTOURS ARE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES OF THE BASIN.
8. CONTRACTOR SHALLTHEN CONSTRUCTTHE EMERGENCY SPILLWAY IN CUTOR STRUCTURALLY STABILIZED SOILS.
9. THE CONTRACTOR SHALLTHEN FINISH CONSTRUCTION OF ALL OUTLET STRUCTURES, INCLUDING DOWNSTREAM RIP -RAP APRON
PROTECTION.
10. THE CONTRACTOR SHALL NEXT STABILIZE EXPOSED SOILS BY HYDROSEEDING OR SEEDING OVER STRAW.
11. THE CONTRACTOR SHALLTHEN INSTALLTHE APPROPRIATE BASIN LANDSCAPING IN ACCORDANCE WITH THE APPROVED PLANS.
FACILITY MAINTENANCE:
MAINTENANCE OF THE DETENTION BASIN IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE
OF THE FACILITIES. DURING THESE INSPECTIONS THE FOLLOWING TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST
YEAR FOLLOWING INSTALLATION, AND THE OWNER THEREAFTER:
1. MEASURE SEDIMENT ACCUMULATION LEVELS IN THE BASIN.
2. MONITOR THE G ROWTH OF THE GROUN DCOVER AN D ANY TREES AND SH RUBS PLANTED, AS APPLICABLE. RECORD TH E SPECI ES
AND THEIR APPROXIMATE COVERAGE, AND NOTE THE PRESENCE OF ANY INVASIVE PLANT SPECIES, AS APPLICABLE.
3. INSPECTTHE CONDITION OF STORMWATER INLETS TO THE BASIN FOR MATERIAL DAMAGE, EROSION OR UNDERCUTTING.
4. INSPECTTHE BANKS OF UPSTREAM AND DOWNSTREAM CHANNELS FOR EVIDENCE OF SLOUGHING, ANIMAL BURROWS, BOGGY
AREAS, WOODYGROWTH, OR GULLY EROSION THAT MAY UNDERMINE EMBANKMENT INTEGRITY.
5. INSPECT BASIN OUTFALL CHANNEL FOR EROSION, UNDERCUTTING, RIP -RAP DISPLACEMENT, WOODY GROWTH, etc.
6. INSPECT CONDITION OF PRINCIPAL SPILLWAY AND RISER FOR EVIDENCE OF SPALLING, JOINT FAILURE, LEAKAGE, CORROSION OR
OTHER FAILURES.
7. INSPECT CONDITION OF ALL TRASH RACKS, REVERSE SLOPED PIPES OR FLASH BOARD RISERS FOR EVIDENCE OF CLOGGING,
LEAKAGE, DEBRIS ACCUMULATION OR OTHER FAILURES AS APPLICABLE.
8. INSPECT MAINTENANCE ACCESS TO ENSURE IT IS FREE OF WOODY VEGETATION, AND CH ECK TO SEE WHETHER VALVES,
MANHOLES AND LOCKS CAN BE OPENED AND OPERATED.
9. INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE BASIN FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR
SLUMPING.
10. OWNER OR CONTRACTOR SHALL MAKE NEEDED REPAIRS IMMEDIATELY.
FACILITY INSPECTION:
MULTIPLE INSPECTIONS ARE CRITICAL TO ENSURE THE BASIN(s) ARE PROPERLY CONSTRUCTED. BECAUSE THE TIMING OF THE
INSTALLATION IS DICTATED BY THE CONTRACTOR, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER AND
INSPECTOR PRIOR TO INSTALLATION. MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE CONTRACTOR
WITH THE ENGINEER AND INSPECTOR DURING THE FOLLOWING STAGES OF THE DETENTION BASIN's CONSTRUCTION PROCESS:
1. PRE -CONSTRUCTION MEETING
2. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS)
3. EXCAVATION/GRADING (e.g., INTERIM/FINAL ELEVATIONS)
4. EXTENDED DETENTION BASIN INSTALLATION (e.g., INTERIM AND FINAL ELEVATIONS)
5. INSTALLATION OF THE EMBANKMENT, THE RISER/PRIMARY SPILLWAY, AND THE OUTLET STRUCTURE(s),
6. PLANTING PHASE (WITH AN EXPERIENCED LANDSCAPE ARCHITECT PRESENT/DIRECTING)
7. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE)
plpe
Culvert
a
1 /2" Sine plated heck
attached with 3/8' fastener
Isometric
scetiorl
5/8" dia hole
10 o
0/10 1\o
single HAP/ FIK.'V2i T10 fl
orifice
DFRRIS CAGE
STEEL WEIR PLATE TO BE
FASTENED OVER THE 15"
OUTLET OPENING,
COVERING THE TOP HALF OF
THE OUTLET OPENING.
SEAL OPENINGS AROUND
THE PLATE WITH MORTAR
TO CREATE A WATER -TIGHT
PLATE OVER THE OPENING.
INSTALL STEPS IN EX. RISER
STRUCTURE IF THE STEPS
HAVE NOT PREVIOUSLY
BEEN INSTALLED.
48" RISER
OUTLET PIPE
15" RCP /
WEIR PLATE DETAIL /
N.T.S.
2-1/8" din. holes
1 4' HDPE :ale (optional)
/ P ( P )
HOPF clruMnrrl pin Rtic will-
2-1/8" holes and 1/9" plaLc
mnnu`ncturcd 6y ?lss:ic
Solutions Inc. or equal
' shaTm wiLb optional plate
HD7F plastic with
2-
,. I 8 holes and 1 4 late
P / /
manufactured by Plastic
Solutions Inc or equal
lI PLASTIC
p
SOLUTIONS .0. tic' d3ee
Ninehester YA 22604
INC. 877-877-5727
vrs.pladc-Ldwn<mE
SECTION A-9: TYPICAL GRAPItIIC AI. DETAILS
Homogeneous fill
T
/� 4' min
`�'� CW off trench- ' below suitable
materiSal or rock ' L------------'
TYPICAL HOMOGENEOUS
EMBANKMENT
Perforated cc
FOUNDATION DRAIN
CHIMNEY DRAIN
Transition fil.
,Rock or gravel
S%
Blanket drain
BLANKET DRAIN
r rock
Rode or draigrovel
e n
TronOifion filter
TOE DRAIN
Figure A-Ia. Hoiuogerleorls Embarrkrnews sr -'Seepage Coirlrols
SlormRRx'^^
ROUND SERIES TRASH RACK
CONCRETE MANHOLE
STANDARD BO I NCH RACK SHOWN
DIMENSIONS IN INCHES
PLAN
SIDE VIEW
StormRaXTM Round Series for Concrete Manhole
part No.
DBSA
Dime
Dist
MOD
MI
W24
1715
1 14%
28
M
30
RS38
21
11
4D,1
38
4T
ILS+e
27
1 54 .
u
1 57
27y,
185i
"M
0
1 A
Plastic sautions, ITLD. =MMER
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W,IWAeC
Q" TERWE -
RE40vNlF fORA^.CESS
ISOMETRIC
CONCRETE STRUCTURE DIMENSIONS
INSIDE STRUCTURE DIMENSION
OUTSIDE STRUCTURE DIMENSION
AVAILABLE DPTIONS
CROSS SPACING FOR OVERHANG
HOPE ANTI -VORTEX PLATE
MM
OWNBY
)woe,
DETAIL
SCOTT/R. Ct LLINS'Z
Lic. No. 035791
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JOB NO.
152118
SCALE
AS SHOWN
SHE\T NO.
9
.. Department offCom un tyMDevelRLopment
Construction Record Drawings (As -built) for VSMP
The following is a fist of information required on construction record drawings for
stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the
construction record drawing be prepared by someone other than the designer. Please do not
provide design drawings as construction record drawings.
A. A signed and dated professional seal of the preparing engineer or surveyor.
B. The name and address of the firm and individual preparing the drawings on the title sheet.
C. The constructed location of all items associated with each facility, and the inspection records to verify
proper dimensions, materials and installation. The items include, but are not limited to the following:
1. Inspection Records and photographs for pipe trenches and bedding, including underdrains.
2. Video Pipe Inspection for any pipes which are not accessible or viewable.
3. Updated Location with geo-coordinates of all facilities.
4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities.
5. Current physical and topographic surrey for all earthen structures. Ponds should include a survey
of the pond bottom. Surveys should verify pond volumes are per design. Corrections may be required
for alterations from the design.
6. Plants, location and type.
7. Plans and profiles for all culverts, Pipes, Risers, Weirs and Drainage Structures- Display the
installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s),
inlet and outlet protection, alignment and invert elevations compared to design.
8. Computations: For significant deviations from design, provide sealed computations verifying that
the as -built condition is equivalent or better than design.
9. Ditch Lines - Display the constructed location of all ditch lines and channels, including typical
sections and linings.
10. Easements - Show all platted casements with dead book references labeled. Facilities and drainage
must be within platted easements. Provide copies of recorded documents.
11. Guardrail, fences or other safety provisions - Display the constructed location of all safety
provisions; fences, guardrail, including the type, length and applied end treatments, compared to
design.
12. Material layers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to
material types and depths. Include inspection reports, boring or test pit reports and materials
certifications. Biofilter media must be an approved state mix.
13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable.
14. Compaction reports are required to verify fill compaction in dams.
15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning.
STORMWATER MANAGEMENT FACILITY 'B' DETAIL
(SCALE OF 1"=10')
GENERAL SWIM NOTES:
i. STATE APPROVED TRASH RACKS SHALL BE INSTALLED ON ALL ORIFICE OPENINGS. SEE SHEET 9 FOR DETAILS OF THE ORIFICE's
TRASHRACK AND THE RISER's TRASHRACK, OR EQUIVALENT.
2. CONCRETE FOUNDATIONS SHALL BE INSTALLED ON ALL RISER STRUCTURES MEETING MINIMUM VESCH 3.14 SPECIFICATIONS.
1 CONTRACTOR SHALL HIRE A THIRD PARTY GEOTECHNICAL ENGINEER TO ENSURE THE EMBANKMENTS ARE STRUCTURALLY SOUND. ALL
EXISTING AND PROPOSED FILL MATERIAL AND PROPOSED CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL
ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS, AND PRESENT DURING THE CORE
SAMPLING. SEE SHEET 9 & THIS SHEET FOR ADDITIONAL NOTES & DETAILS.
4. THE DOWNSTREAM EMBANKMENT SIDE SLOPES OF ALL PERMANENT FACILITIES SHALL HAVE A MAXIMUM 3:1 SLOPE.
5. CONTRACTOR SHALL EXCAVATE SEDIMENT LADEN MATERIAL IN THE ESC SEDIMENT TRAPS& BASINS AT THE TIME OF THE FACILITIES'
CONVERSIONS TO PERMANENT SWIM FACILITIES, IF APPLICABLE. AT SUCH TIME THE CONTRACTOR SHALL REGRADE THE SEDIMENT
BASINS/TRAPS TO THE PROPOSED GRADES SHOWN ON THE SWIM SHEETS. THE CONTRACTOR SHALL MINIMIZE SOIL COMPACTION
DURING THE CONVERSIONS.
ALL SLOPES GREATER THAN 3:1 SHALL BE PLANTED WITH NON -EROSIVE
LONG GRASSES OR OTHER TYPES OF NON -EROSIVE PLANTINGS.
EMBANKMENT NOTES:
THE EMBANKMENTS SHALL HAVE A COMPACTED CLAY CORE WITH A CUTOFF TRENCH & BE IN ACCORDANCE WITH
THE DETAILS SHOWN IN THIS PLAN. FILL MATERIAL SHALL BE FREE OF WOOD, ROOTS, STUMPS, RUBBISH, STONES
GREATER THAN 5" AND ANY OTHER NON COMPACTING SOIL. FILL MATERIAL FOR THE CENTER OF THE
EMBANKMENT AND THE CUTOFF TRENCH SHALL CONFORM TO UNIFIED SOIL CLASSIFICATION CL, SC OR GC.
COMPACTED FILL SHALL BE PROCTOR MAXIMUM DRY DENSITY ASTM D698 AND HAVE A MINIMUM OF 95%OF
MAXIMUM DRY DENSITY AND 2%OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL AND CONSTRUCTION
SHALL BE APPROVED BYAN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE
EMBANKMENTS AND FILL AREAS. BERMS AND SPILLWAYS SHALL BE STABILIZED WITH EC-3 MATTING & THE
REMAINING DISTURBED SLOPES SHALL BE STABILIZED WITH EC-2 MATTING.
EMBANKMENT TO INCLUDE A FOUNDATION DRAIN, BLANKET DRAIN AND A DOWNSTREAM TOE DRAIN IN
ACCORDANCE WITH VA DEQ DESIGN SPECIFICATION APPENDIX A, FIGURE A-1a. SEE SHEET FOR DETAIL.
ANTI -SEEPAGE COLLAR NOTES:
BARRELS PASSING THROUGH THE EMBANKMENTS SHALL INCLUDE PERMANENT ANTI -SEEP COLLARS IN
ACCORDANCE WITH VA DEQ DESIGN SPECIFICATION APPENDIX B, FIGURE B-2. SEE THIS SHEET FOR DETAIL.
CONCRETE COLLARS SHALL MEETTHE FOLLOWING REQUIREMENTS, TYPICAL:
A. A MINIMUM OF TWO (2) COLLARS ARE REQUIRED. SWIM FACILITY B's BARREL REQUIRESTWO (2) COLLARS.
B. THERE SHALL BE A MINIMUM OF 10' OF SEPARATION, AND A MAXIMUM OF 28, OF SEPARATION, BETWEEN
THE TWO COLLARS PROPOSED ALONG SWM FACILITY B's BARREL.
C. ANTI -SEEP COLLARS & THEIR CONNECTIONSTO THE BARREL SHALL BE WATERTIGHT& BE IN ACCORDANCE
WITH VA DEQ DESIGN SPECIFICATION APPENDIX B, FIGURE B-2, SEE THE DETAIL ON THIS SHEET.
D. COLLAR DIMENSIONS SHALL EXTEND A MINIMUM OF TIN ALL DIRECTIONS AROUNDTHE PIPE. SWM
FACILITY B's COLLARS SHALL BE A MINIMUM OF S'x5'.
E. COLLARS SHALL BE PLACED A MINIMUM OF 2' FROM PIPE JOINTS UNLESS FLANGED JOINTS ARE USED.
PROPOSED FLAT VDOT CLASS AI RIPRAP
( LINED OUTLET PROTECTION WITH FILTER
FABRIC UNDERLAYMENT TO EXTEND TO THE
CHANNEL'S BANK. RIPRAP TOP ELEV=424'.
1 11 (L=5', W1=2', W2=5', D=LS' /
TO PREVENT FLOTATION THE RISER BASE SHALL BE FIRMLY \
/ EMBEDDED 6" INTO AN 18" THICK REINFORCED CONCRETE
FOUNDATION THAT IS 4'x4, AND BURIED BELOW GROUND. \
PROPOSED 024" HDPE STANDPIPE WITH A RIM
ELEVATION OF 437.50' SHALL SERVE AS THE
RISER STRUCTURE. RISER SHALL BE SET IN A
REINFORCED CONCRETE FOUNDATION & HAVE
A 03" LOW -FLOW ORIFICE WITH AN INVERT
ELEV. AT THE LOW POINT OF THE BASIN
(434.DO'). RISER TO INCLUDE STATE APPROVED
TRASHRACKS ON ALL ORIFICE OPENINGS. SEE
VSMP AMENDMENT #3's APPROVED SHEET 9 /
\
FOR TRASHRACK DETAILS, OR EQUIVALENT. I
o
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\
/PROPOSEDI/0
ALLEYWAY TO \
n
\ RVE AS ACCESS Q
T THE DRY BASIN o'
\
1
\
APPROVED SLOPES HAVE BEEN
TO BE LESS THAN 25% o
iDETERMINED
BASED ON TOPOGRAPHIC EXHIBIT & 6
SURVEY PROVIDED BY ROUDABUSH,
GALE AND ASSOCIATES AS PERMITTED
UNDER SECTION 30.7.4(b)h (TYPICAL)
I
\\\ \
\ +0Y
cP \
Q
SEE THIS SHEET FOR SCALED
PROFILES OF THE DRY BASIN, TYP.
A\
PROPOSED BASIN's FLOOR SHALL
\ BE SLOPED TO DRAIN TO THE
RISER (0.5% MIN.) WITH POSITIVE .
SLOPES THROUGHOUT.
CONTRACTOR SHALL CALL THE COUNTY
INSPECTOR & ENGINEERING DEPARTMENT \\ \ \ DSO
24-HOURS BEFORE ANY ANTICIPATED
CONSTRUCTION ACTIVITIES FOR THE DRY BASIN.
r11
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EXISTING MANAGED
STEEP SLOPES, TYP.
I
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n�
1+p0 1 25
'N
\\� EXISTING PRESERVED
PROPOSED 56.2 LF OF `STEEP SLOPES, TYP.
06" HOPE @ 142%
- 2.00',
IO=2
o \
PROPOSED 15' WIDE VDOT CL. Al RIPRAP
\ LINED EMERGENCY SPILLWAY w/ 4:1 SIDE
SLOPES & FILTER FABRIC UNDERLAYMENT.
SPILLWAY CREST ELEV.=438.50'.
5' WIDE TOP OF DAM
ELEV.=440.00'
L°
o / SWM FOREST & OPEN SPACE
EASEMENT (DB 04967, PG 133-134)
EASEMENT IS A BEST MANAGEMENT
PRACTICE & PROHIBITS FUTURE
I DEVELOPMENT& DISTURBANCES
\� -- PROPOSED VARIABLE WIDTH SWIM
ACCESS & MAINTENANCE ESMT.
I� \
(I I�APHIC SCALE
( IN F4T )
inch- _ 10 ft.
VA DEQ STORMWATER DESIGN SPECIFICATION INTRODUCTION: APPENDIX B: PRINCIPAL SPILLWAY
Concrete coal! be NOTES:
30D0 psi canrsete 3' min. 1. A6n. clearance between rebar and
outside face of color shall be 3'.
2. Dimensions and bar 15 are design specific.
3. Compact aou--excavation to 95% density
per ASTM D-698
°I 4. Collars should be placed a minimum of 2'
from pipe joints unless flanged pipe
ijoints are used.
Use side xall and Rebar each way,
bottom of trench B front and bock,
as form per plan
No Scale
NOTES:
Collar to be same 1. All materials to be in accordance with
Instal collar with gage as the pipe construction and construicton manual
carrugatlons Verticul with Whioh it is uacd SpecifiGabons.
2. Unassembled collars shall be marked
by painting or togging to identify,
Continuous weld 3. The lap between the two half sections
and between the pipe and connecting band
1 /2"xz' slotted shall be caulked with asphalt masticos6c
wholes for 3/800 at time of irastallatiorL
Band
bolts (typ) 4, Each collar shall be furnished with two
1/2' da, rods with standard tank lugs for
O.D. of pipe r B 2" oonneciirg collars io pipe.
�I t' including p<pe 12�' mina{
1 t1TI2" Band I I 1 Ir T
'
Continuous weld
Weld bath sides
Slotted hales Corrugated metal sheet
B at $" C.C. welded center of
band
EZRCN OF UNASSEMRD COLLAR
re B- 2. Concrete Anti -Seep Collar
450 450
PROPOSED 024" HOPE STANDPIPE WITH A RIM ELEVATION OF
437.50' SHALL SERVE AS THE RISER STRUCTURE. RISER SHALL BE
SET IN A REINFORCED CONCRETE FOUNDATION & HAVE A 03"
LOW -FLOW ORIFICE WITH AN INVERT ELEV. AT THE LOW POINT OF
XISTIN THE BASIN (434.00'). RISER TO INCLUDE STATE APPROVED
TRASHRACKS ON ALL ORIFICE OPENINGS. SEE VSMP AMENDMENT
445 GRADE #3's APPROVED SHEET 9 FOR TRASHRACK DETAILS, OR EQUIVALENT.
PROPOSED RETAINING WALL �(
TOP OF WALL-446'
BOTTOM GRADE AT WALL=440' \ rs' IDETOP OFDAM
BOTTOM OF WALL FOUNDATION=438' � ELEV.=4
100-yr PEAK WSE=438.73
440
1
440
10-yr PEAK WSE=438.35
CONTRACTOR SHALL INSTALL EMBANKMENT
2-yr PEAK WSE=437.44
IN ACCORDANCE w/ THE NOTES AND
1-yr PEAK WSE=436.72
DETAILS SHOWN ON THE APPROVED SHEET 9.
j
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435
435
445
GRADE
PROPOSED BASIN's FLOOR SHALL BE SLOPED
TO DRAIN TO THE RISER (o.5% MIN.) WITH
POSITIVE SLOPES THROUGHOUT.
TO PREVENT FLOTATION THE RISER BASE
SHALL BE FIRMLY EMBEDDED 6" INTO AN 18"
THICK REINFORCED CONCRETE FOUNDATION
THAT IS 4'x4, AND BURIED BELOW GROUND.
PROPSED 5(
425 06" HDPE @
(II=43l2.00', II
430
'HREATIC LINE (ASSUMES A
;TARTING POINT AT THE PEAK
0-YEAR WSE WITH A 4H: 1 V SLI
HROUGH THE EMBANKMENT)
iEFINES THE SATURATION ZONE.
PRC
GF
I APPROXIMATE LOCATIONS OF
LFO 4�5 PROPOSED CONCRETE COLLAR
22y" FINAL LOCATIONS TO BE
t4.00) DETERMINED BY THE CONTRAC
Al IPRAP LINED WHICH IS PARTIALLY DEPENDE
5 A FILTER RID )g' UPON THE LOCATION OF THE
'O EX END TO THE JOINTS. SEE THIS SHEET's
CIE ANNEL's BANK. R PRAP TOP ELEV= 24'. 'ANIT-SEEPAGE COLLAR NOTE:
420 (L=5', ,=2', 2=5% D=1.5') 420 AND ITS FIGURE B-2.
LULU ^ n o
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119 1 S
0+50 1+00 1+25
BASIN B SECTION
PROFILE
HORIZONTAL
GRAPHIC SCALE
51 25 50 100
( IN FEET )
1 inch = 50 1t.
445
5'WIDE
TO
OF DAM
)PE
ELEV:
40.00'
440
7
440
POSED -
LADE
1
'
435
435
TOR,
JT
'IPE
430
430
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EXISTING
GRADE
-PROPOSED 15' WIDE VDOTCL. Al RIPRAP
LINED EMERGENCY SPILLWAY w/ 4:1 SIDE
SLOPES & FILTER FABRIC UNDERLAYMENT.
SPILLWAY CREST ELEV.=438.50'.
0+50
BASIN B SPILLWAY
PROFILE
VERTICAL
GRAPHIC SCALE
2G0 b ., 25 5 10
( IN FEET )
1 inch = 5 1t.
20
Lic. No. 035791
L 11/5/21
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JOB NO.
152118
SCALE
AS SHOWN
SHEET NO.
10 11
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IIIIIIIIIIIIIIIIIIIII, III, III, IIIIIIIIIIIIIIIIIIIII♦ III, III, III, I♦ 3 III,
MATCHLINE - SEE T SHE T/
STEEP SLOPE NOTES:
1. FOR CONSTRUCTED SLOPES, THE MAXIMUM STEEPNESS IS 2:1
(HORIZONTAL: VERTICAL).
2. FOR GRASS STABILIZATION ON CONSTRUCTED SLOPES, THE
MAXIMUM STEEPNESS IS 3:1. SLOPES STEEPER THAN 3:1 MUST
BE PERMANENTLY STABILIZED WITH LANDSCAPING VEGETATION
HARDIER THAN GRASS, WHICH WILL NOT REQUIRE MOWING.
ACSA NOTES:
1. NOTE: ALL WATER METERS SHALL BE ACSA
APPROVED TRAFFIC -RATED METER BOXES.
2. ANY UNUSED SEWER LATERALS FROM PHASE I
WILL NEED TO BE ABANDONED.
PROPOSED WATER / / 5 2 4 2 SF \ \ \ \
MA CHLINE - SE T IS T/. /��W LATERAL (LOTS 30
3 PROPOSED WATER \ 0 T
LATERAL LOT 29 42' S A /SCOTT R. LINS Z
4,326 SF
.
SEWER LATERAL / I/ ` > L 0 T 6
41839 SF
EXISTING SANITARY / (P) 10' PRIVATE
/ DRAINAGE ESMT
LATERAL TO BE '
DnlraPk-2-7 + e / X
EXTENDED° , _ � -' / \ \ / , O' o � N
RAISE RIM FROM Ln
ELEV. 453.
X o
TO 0
un
co F-
8 SF
Lu
PROPOSED GRADING / ,a / L \ \ } PROPOSED 20' STORM \ \ a ° Z_
\ / SEWER EASEMENT 2 / / \ V/ w
0' PRIV TE SANI RY 18 v V « �� A v A a / LOT T / V 1``"1 Ln
SEW R LATER / , W RIM / 1 PROPOSED SANITARY LATERAL v \ �. \ \ \ / / / \ \ / w
ACCE EASEM T / / \ / WITH SADDLE CONNECTION _ 1 O �\ S \
L\ 27 � \ \ I" / 42 J/FA / \/ W
r /. EV. 54.0 a /
(P) r cuR6 - \ \ \ 104 - + \ ; i/ 14 4, 9 2/T S F /
/ h 2O EXISTING SANITARY _ _ - - 4 6 SF -
CUT / / - \ \ / LATERAL TO BE ` \ \ \ \ ^ < / / LOT 13
Z / EXTENDED v v v X V� / ' /
iP Q / / \ \ RAISE RIM FROM ELEV.\46.52 ` ` ` - - \ \ \ O EXISTING D.I. � '
/ ` ` `
v _
M 7 TO E EV. 451.00 \ 1 � \ 4, 453 �F i
PROPOSED VbOTSTD. TYPE I RIPRAP
O F
/ v v i ` r
LINED HAN �L w/ GEOTEXTILE FILTE \ 42
FtIBRIC 6ERLAYME�IT. CHANNEL - \ \ \ k \
\ v v A EXTr T TING RIPRAP CHA NEC,\ \ \ \
L _ \
EXISTING 20'vA - A� v v v v v is Q z 0.22
DRAINAGE EASEMENT \'- " - \L_6.
SSA \Z (SL\OP 30%) \ \ \ \
) v v v 4 �/�F
/ --I- NEW SANITARY
/ r SEWER LATERAL\� �F
EXIS�NG DITCH OUTFACE
/ C TO. STREAM
I,
.�.y PROPOSED WATER A V ` \ \
/ X • . LATERAL LOT 32 \ V �� y \ A V / `v `\ \ EXISTIN WALL v v v / + / 4 Cn
NEW SANITARY \ \ /., _ \ \ - \ \ \ �\ \ L / / �. ` / a - _ N V
a \ 1 1 \ SEWER LATERALYD G
,
N
PRESERVED STEEP SLOPES \ \Q 2 CD w
/ PROPOSED v
PRIVATE STORM I \V /r` \ �\ '\. \ �50 // �\ LL
N
I / V�� ��-/ i W. N
/ X % l SEWER EASEMENT \ \ / �. \
A
vv I�v v J
FA Q a
NOTE: L9WITH THE CONSTRUCTION OF THE J
HOMES, THE CONTRACTOR SHALL TIE THE / / �O �0 �/ ,' \�: A / �� A V / \ ` \ v A - v v - - / D
G / A v \\ \ .A v \ MANAGED STEEP SLOPES
ROOF &FOUNDATION DRAINS FOR LOTS / �, � V A A � �\" \ � / \ � � V ', � �' / v y' \ � � •`' "� - I v � v �9L 21 /
32,33 & 34 INTO THE YARD DRAIN SYSTEM / O 3 o X \ \A /' \ - \ / PROPOSED SEGMENTED RETAINING WALL \ / \ \ 4Q' S FD / / 2 C6
a / \ \ / \ \ ` :: HEIGHT=6' FROM GROUND TO TOP OF WALL \
YD G- CO D ALONG LINDLEY PLACE. / �y � � \ i A � / �' I � i iC � A � % \ � - �r
\ / VAR. WIDTH PRIVATE \ \ _ \ TW=446 BG=440 \ \ _ U
UTILITY EASEMENT \ \ \ \ \ ` BOTTOM WALL=438 \ / - _ - - - ! \ 7, 2� 8 SF / ' O z
vvICE
TEMPORARY GRADING EASEMENT FOR "\ I \ YD F PUBLIC USE UPON DEMAND OF THE COUNTY \ \� \ \ \ \ \ \\ \ \ \ \' \ \ \ \ : \ \ \ - - LU �/
\ \:. NEW SANITARY \ \ \ \ _ - - - _ LL CII
V, l SEWER LATERAL AA \ \\ �A _ A V VA A 'W VA V v �- - - LU
- , n
\ ` \ \"
COD \ \ \ \ ' \ \ �.. \ � � / - \ \
VAR. WIDTH SWIM \ \ \ \" \ \ �C LOT- -2Q /
FACILITY EASEMENT \ \ \ \ \ \ -
\ \o SFD
6'877 SF W
ice-- Q
PROPOSED DRY GRASS RETENTION SWIM -
/FACILITY. SEE WPO AMENDMENT PLAN FOR
SWIM FACILITY DESIGN AND DETAILS.
/
VIDE ` \ V v 'v 'v vv v v v v vv v
DRAINAGE DESCRIPTIONS
STIR. NO.
PIPE INFORMATION
INLET INFORMATION
COMMENTS
DIA.
in.
LENGTH
ft.
SLOPE
%
INVERT
IN
INVERT
OUT
MATERIAL
INLETIYPE
Curb
Type
SLOT
LENGTH
RIM
ELEVATION
YD C
12" YARD DRAIN
458.00
C-B
6
17.45
0.57%
454.72
454.62
HDPE
YD B
12" YARD DRAIN
457.80
B-A
6
20.40
0.59%
454.62
454.50
HOPE
YD A
12" YARD DRAIN
457.80
A-102
6
33.02
0.76%
454.50
454.25
HDPE
104
DI-3B
10
458.71
VDOTSID. IS-1 REQ'D
103
15
90.43
0.91%
453.75
452.93
HDPE
102
MH-1
460.91
VDOTSTD. IS-1 REQ'D
101
15
79.67
1.92%
452.83
451.30
HDPE
YD G
1
1
12" YARD DRAIN
456.25
YD G-YD F
6
111.14
0.67%
450.25
449.50
HDPE
YD F
12" YARD DRAIN
450.50
YD F-YD E
6
47.74
0.67%
449.50
449.18
HDPE
YD E
12" YARD DRAIN
453.50
YD E-YD D
6
47.32
11.74%
449.18
443.50
HDPE
CO D
12" CLEANOUT
445.75
CO D-OUT
6
11.63
4.30%
443.50
443.00
HDPE
N
�
THESE SLOPES HAVE BEEN DETERMINED LESS THAN 25 /o
PER NEW TOPOGRAPHIC SURVEY AND SLOPES EXHIBIT PROVIDED BY Q
ROUDABUSH, GALE, AND ASSOCIATES DATED MAY 18, 2017, AS
PERMITTED UNDER SECTION 30.7.4(b)(h) \ \ \ \ \ \ \ - - - - - CD
CD
\ \ \\ \ PROPOSED VDOT STD. TYPE I RIPRAP
LINED CHANNEL w/ GEOTEXTILE FILTER _
\ \ \ w
FABRIC UNDERLAYMENT. CHANNEL TO
EXTEND TO DRY GRASS RETENTION AREA, \ \ \ MH15 U
L=7S' \ Q z 0.28 CFS \ \ \ \ Elf
°L 6.. V �=5.50 FPS \ \ \ - - d m
r Q ,0 0.35 CFS \ \ ` JOB No.
RIPRAP D,o 0.22FT GRAPHIC SCALE `\ \\ - 152118
i SWALE (SLOPEa30%)-
\ NO SCAL 20 0 10 20 40 80 \ �.
r\\. 1 - \ i� \'\\ \ / SCALE
,
IN FEET)
' `...... \.•.•\ \ \ ' . . '� \ \ 1 inch = 20 ft.
SECTION 6
it•14ItillIDRIa0:kvja►kIIs] ►1»aa
POLLUTION PREVENTION PLAN
A. PERSON RESPONSIBLE FOR POLLUTION PREVENTION PRACTICES
The qualified personnel, contractor listed below, will be responsible for the implementation and
maintenance of the pollutant control measures. This may include delegating this responsibility
to other contractors as they become involved with the project and begin the anticipated
pollutant generating activity. They are required to hold weekly toolbox meetings to review the
pollution prevention plan with their team.
COMPANY NAME: DUNLORA INVESTMENTS, LLC
CONTACT NAME: ALAN TAYLOR
QUALIFICATION:
PHONE NUMBER: 434-245-4970
EMAIL: aIan@riverbenddev.com
QAULIFIED INSPECTOR/CONTRACTOR
COMPANY NAME:
CONTACT NAME:
QUALIFICATION:
PHONE NUMBER:
EMAIL:
QAULIFIED SUBCONTRACTOR/CONSTRUCTION MANAGER
COMPANY NAME:
CONTACT NAME:
QUALIFICATION:
PHONE NUMBER:
EMAIL:
B. POLLUTION PREVENTION AWARENESS
DEQ's Office of Pollution Prevention hosts numerous programs and initiatives that serve as a
conduit for non -regulatory assistance to businesses and communities. The contractor will ensure
that their team is trained and knowledgably aware of all measures in this document before
construction begins. Contractor shall conduct a "walk through" of the site with their team
identifying areas of possible pollution and discussing how they will implement the prevention
practices outlined in this report and shown on the plans. They are required to hold weekly
toolbox meetings with their team to review the pollution prevention plan and give any updates
on changes through the construction phase.
C. SPILL PREVENTION AND RESPONSES
The first priority is to protect all people, secondly protect the equipment and property, and
lastly protect the environment. The contractor shall regularly check the equipment on site and
any pollutants shall be stored properly to prevent spills. Spills will be immediately and promptly
cleaned up by the contractor. Most spills can be cleaned up following manufacturer
specifications. Absorbent/oil dry, sealable containers, plastic bags, and shovels/brooms are
suggested minimum spill response items that should be available at this location. The following
steps shall be taken in the case of a spill:
1. Check for hazards (flammable material, noxious fumes, cause of spill) — if flammable liquid,
turn off engines and nearby electrical equipment. If serious hazards are present leave the
area and call 911. Large spills are likely to present a hazard.
2. Make sure the spill area is safe to enter and that it does not pose an immediate threat to
health or safety of any person.
3. Stop the spill source (most spills can be cleaned up following manufacturer specifications —
absorbent/oil dry, sealable containers, plastic bags, and shovels/brooms are suggested
minimum spill response items)
4. Call co-workers and supervisor for assistance and to make them aware of the spill and
potential dangers.
5. If possible, stop spill from entering drains (use absorbent or other material if necessary).
6. Stop spill from spreading (use absorbent or other material if necessary).
7. If spilled material has entered a storm sewer; contact locality's storm water department.
8. Clean up spilled material according to manufacturer specifications, for liquid spills use
absorbent materials and do not flush area with water.
9. Properly dispose of cleaning materials and used absorbent material according to
manufacturer specifications.
The following agency should be considered for notification in the case of a spill:
Albemarle County Fire Rescue: 434-296-5833
Albemarle County Police Department: 434-296-5807
Virginia Department of Health: 434-972-6259
Virginia Department of Conservation & Recreation: 1-804-786-2094
Virginia Department of Environmental Quality: 1-540-574-7824
Virginia Department of Emergency Services: 1-800-468-8892
D. POTENTIAL SOURCES OF POLLUTANTS AND POLLUTION PREVENTION PRACTICES
POLLUTANTS
N
•a
Y
�
_
o^
N
q
Y
POLLUTANT GENERATING
a
u
w
E
POLLUTION
ACTIVITY
«
v
=
WS
N
>
PREVENTION
m
d!
a
.2
0
PRACTICE
Y01i
2
=
a
a
O
m
m
F
O
✓
Clearing, grading, excavating,
X
X
1
and unstabilized areas
✓
Paving operations
X
X
X
2
✓
Concrete washout and
X
X
X
3
cement waste
✓
Structure construction,
X
X
X
X
4
stucco, painting, and cleaning
✓
Dewatering operations
X
X
X
5
✓
Material delivery and storage
X
X
X
X
X
X
X
6
✓
Material use during building
X
X
X
X
X
X
7
process
✓
Solid waste disposal
X
X
8
✓
Sanitary waste
X
X
X
9
✓
Landscaping operations
X
X
X
X
X
10
Other:1:11:1
1:11:111
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. These items shall be
contained while on site in the designated washout area shown on the plans and covered at
the end of each workday and before precipitation events.
Pollution Prevention Practices:
(1) Clearing, grading, excavating and un-stabilized areas — Utilize erosion and sediment controls to
prevent sediment laden or turbid runoff from leaving the construction site. Dispose of clearing
debris at acceptable disposal sites. Apply permanent or temporary stabilization, sodding and/or
mulching to denuded areas in accordance with the erosion and sediment control specifications
and the general VPDES permit for discharges of stormwater from construction activities.
(2) Paving operations —Cover storm drain inlets during paving operations and utilize pollution
prevention materials such as drip pans and absorbent/oil dry for all paving machines to limit leaks
and spills of paving materials and fluids.
(3) Concrete washout and cement waste — Direct concrete wash water into a leak -proof container or
leak -proof settling basin that is 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. Washout areas shall be placed in an
area that isn't susceptible to stormwater runoff and shall be covered at the end of each workday
and before any rain events.
(4) Structure construction, stucco, painting, and cleaning — Enclose, cover or berm building material
storage areas if susceptible to contaminated stormwater runoff. Conduct painting operations
consistent with local air quality and OSHA regulations. Mix paint indoors, in a containment area or
in a flat unpaved area. 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 by doing so in a contained area and collecting the discharged pollutants in a leak proof
container that can be disposed of in the dumpster on site. Equipment and other tools may be
washed in the concrete washout area.
(5) Dewatering operations — Construction site dewatering from building footings or other sources
may not be discharged without treatment. Sediment laden or turbid water shall be filtered,
settled, or similarly treated prior to discharge.
(6) Material delivery and storage — Designate areas of the construction site for material delivery and
storage. Place near construction entrances, away from waterways, and avoid transport near
drainage paths or waterways.
(7) Material use during building process — Use materials only where and when needed to complete
the construction activity. Follow manufacturer's instructions regarding uses, protective
equipment, ventilation, flammability and mixing of chemicals.
(8) Solid waste disposal — Designate a waste collection area on the construction site that does not
receive a substantial amount of runoff from upland areas and does not drain directly to a
waterway. Ensure that containers have lids so they can be covered at the end of each day and
during periods of rain and keep containers in a covered area whenever possible. Schedule waste
collection to prevent the containers from overfilling.
(9) Sanitary waste — Prevent the discharge of sanitary waste by providing convenient and well -
maintained portable sanitary facilities. Locate sanitary facilities in a convenient location away
from waterways.
(10) Landscaping operations— Maintain as much existing vegetation as practicable. Apply permanent
or temporary stabilization, sodding and/or mulching to denuded areas in accordance with the
erosion and sediment control specifications and the general VPDES permit for discharges of
stormwater from construction activities. Apply nutrients in accordance with manufacturer's
recommendations and not during rainfall events.
(11) Others—
E. AUTHORIZED NON-STORMWATER DISCHARGES
Non-Stormwater Discharge
Location on Site
✓
Discharges from firefighting activities
Designated area shown on
plan
✓
Fire hydrant flushings
Fire hydrants shown on plan
Washing vehicles or equipment (soaps, solvents, or
✓
detergents have not been used and the wash water has been
Wash waters shown on plan
filtered, settled, or similarly treated prior to discharge)
✓
Dust Control (wash water has been filtered, settled, or
Dust control shown on plan
similarly treated prior to discharge)
✓
Potable water sources, including uncontaminated waterline
Water sources shown on
flushings
plan
External building wash down (soaps, solvents, or detergents
✓
have not been used and the wash water has been filtered,
Designated area shown on
settled, or similarly treated prior to discharge)
plan
Pavement washings (where spills or leaks of toxic or
✓
hazardous materials have not occurred; soaps, solvents, or
Wash waters shown on plan
detergents have not been used and the wash water has been
filtered, settled, or similarly treated prior to discharge)
✓
Uncontaminated air conditioning or compressor condensate
Designated area shown on
plan
✓
Uncontaminated ground water or spring water
Designated area shown on
plan
✓
Foundation or footing drains (where flows are not
Designated area shown on
contaminated with process materials such as solvents)
plan
Uncontaminated excavation dewatering (including
✓
dewatering of trenches and excavations that have been
Designated area shown on
filtered, settled, or similarly treated prior to discharge)
plan
✓
Landscape irrigation
Landscape areas shown onplan
All non-stormwater discharges as stated in CGP I E. 1 through 12 are the only non-stormwater
discharges allowed by the construction general permit. With the exception of flows from
firefighting activities, allowable sources of non-stormwater discharges must be identified in
the SWPPP. Appropriate measures must be taken to ensure that pollution prevention
measures for the non-stormwater component of the discharge are implemented.
SECTION 7
II►Vil]_11:14DIVJ/_llIa:4.1
IMPAIRED WATERS
Name(s) of Receiving Waterbody: MEADOW CREEK
Hydrologic Unit Code (HUC): 020802040401
Waterbody Condition: IMPAIRED
If the site discharges to an impaired waterbody then the construction activity operator and
contractors shall comply with CGP II A.5.b. and provide clear direction that:
1. Permanent or temporary soil stabilization shall be applied to denuded areas within 7
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.
3. A modified inspection schedule shall be implemented in accordance with CGP II G2.a.
e Glossary ® Data 9 About ® Contact Us
How's My Waterway?
Informing the conversation about your waters.
Waterbody Report
- Unsegmented x-tribs in VAV-H28R
Assessment Unit ID:VAV-H28R_ZZZ01A00
Waterbody Condition: Condition Unknown
Existing Plans for Restoration: No
303(d) Listed: No
Year Reported: 2020
Organization Name (ID): Virginia (21VASWCB)
What type of water is this?
River(28.67 Miles)
Where is this water located?
Unsegmented waters located within the VAV-H28R (Upper Rivanna/Moores Creek) watershed.
I Assessment Information from 2020 1
What is this water used for?
Aquatic Life
Impairments Evaluated
No impairments evaluated forthis use.
Collapse All Fol
Not Assessed V
Other Parameters Evaluated
No other parameters evaluated for this use.
1/2
Fish Consumption Not Assessed V
Impairments Evaluated
No impairments evaluated forthis use.
Other Parameters Evaluated
No other parameters evaluated forthis use.
Recreation Not Assessed V
Impairments Evaluated
No impairments evaluated forthis use.
Other Parameters Evaluated
No other parameters evaluated for this use.
Wildlife Not Assessed V
Impairments Evaluated
No impairments evaluated forthis use.
Other Parameters Evaluated
No other parameters evaluated forthis use.
Probable sources contributing to impairment from 2020:
No probable sources of impairment identified for this waterbody.
Plans to Restore Water Quality
What plans are in place to protect or restore water quality?
No plans for this waterbody.
2/2
e Glossary ® Data 9 About ® Contact Us
How's My Waterway?
Informing the conversation about your waters.
Waterbody Report
• Meadow Creek
Assessment Unit ID: VAV-H28R_MWCOlA00
Waterbody Condition: Impaired
Existing Plans for Restoration: Yes
303(d) Listed: No
Year Reported: 2020
Organization Name (ID): Virginia (21VASWCB)
What type of water is this?
River(4.98 Miles)
Where is this water located?
Meadow Creek from where it becomes a perennial stream downstream to its confluence with the Rivanna River.
xkm
xmi
Ct of CharlottervtIle, County ofAII, arle,
Assessment Information from 2020
What is this water used for?
Aquatic Life
Impairments Evaluated
Impairment
Benthic Macroinvertebrates Bioassessments
Other Parameters Evaluated
No other parameters evaluated for this use.
1/3
Fish Consumption Not Assessed v
Impairments Evaluated
No impairments evaluated forthis use.
Other Parameters Evaluated
No other parameters evaluated forthis use.
Recreation impaired v
Impairments Evaluated
Impairment Plan in Place
Eschenchia Coli (E. coil Yes
Fecal Coliform Yes
Other Parameters Evaluated
No other parameters evaluated for this use.
Wildlife Good v
Impairments Evaluated
No impairments evaluated forthis use.
Other Parameters Evaluated
Other Characteristics Observed
• Anthracene
• Contaminated Sediments(Benzo[a]anthracene)
• Contaminated Sed1ments(Benzo[a]pyrene)
• Contaminated Sed I menu (Ch rysene)
• Contaminated Sediments(Fluomnthene)
• Contaminated Sediments(Pahs)
• Contaminated Sed1ments(Phenanthrene)
• Contaminated Sed i ments (Pyrene)
• Fluorene
Probable sources contributing to impairment from 2020:
Source Confirmed
Agriculture Yes
Impervious Surface/parking Lot Runoff
Yes
Loss of Riparian Habitat
Yes
Municipal (Urbanized High Density Area)
Yes
Post -Development Erosion and Sedimentation
Yes
Sanitary Sewer Overflows (Collection System Failures)
Yes
Sewage Discharges in Unsewered Areas
Yes
Unrestricted Cattle Access
Yes
Wildlife Other Than Waterfowl
Yes
Plans to Restore water Quality
2/3
wnat Diana are in piece to protector restore water qua Lily f
Links below open in a new browser tab.
Plan Impairments Type Date
M eadow Creek Benthic Macroinvertebrates, Benthic Macroinvertebrates Bioassessments TMDL 2016-07-26
Meadow Creek Escherichia Coll(E. coil), Fecal Coliform, Pathogens TMDL 2008-12-29
3/3
e Glossary ® Data 0 About ® Contact Us
How's My Waterway?
Informing the conversation about your waters.
Waterbody Report
• Rivanna River
Assessment Unit ID:VAV-H28R_RVN01A00
Waterbody Condition: Impaired
Existing Plans for Restoration: Yes
303(d) Listed: No
Year Reported: 2020
Organization Name (ID): Virginia (21VASWCB)
What type of water is this?
River(5A8 Miles)
Where is this water located?
Rivanna River from its confluence with North/South Fork Rivanna downstream to its confluence with Moores Creek.
Assessment Information from 2020 1
What is this water used for?
Expand All F1
Aquatic Life Impaired
Fish Consumption Not Assessed
Recreation Impaired
Wildlife Good
Probable sources contributing to impairment from 2020:
Source Confirmed
Non -Point Source No
Source Unknown No
Plans to Restore Water Quality
What plans are in place to protect or restore water quality?
Links below open in a new browser tab.
Plan Impairments Type Date
Rivanna River Benthic Macroinvertebrates TMDL 2008-06-11
Rivanna River Eschenchia Coll(E. coli) TMDL 2008-12-29
2/2
Fact Sheets for
Impaired (Category 4 or 5) Waters in 2020
James River Basin
Cause Group Code: H28R-01-BEN Rivanna River/Moores Creek
Cause Location: Rivanna River from its confluence with the North/South Fork Rivanna downstream to its confluence with an
unnamed tributary just below the RWSA-Glemore STP. (Includes a .54 mile segment of Moores Creek). (Start Mile:
41.43/.54 End Mile: 30.02/0.00 Total Impaired Size: 11.41/.54 Miles)
City / County: Albemarle Co. Charlottesville City
Use(s): Aquatic Life
Cause(s) / VA Category: Benthic Macroinvertebrates Bioassessments / 4A
This segment is impaired due to exceedances of the General Standard for Benthics at stations: 2-RVN-RVN11-RCA (Impaired
for VSCI), 2-RVN033.65 (Impaired for VSCI) and 2-RVN-RVN01-RCA (Impaired for VSCI). Initial Listing Dates: 1996 and
2006. This segment is included in the EPA approved Rivanna River benthic TMDL. Federal TMDL ID # 34524/34525
Cause
Assessment Unit / Water Name / Location Desc. Category Cause Name
VAV-H28R_MSC01 B12 / Moores Creek / Moores Creek from the 4A Benthic Macroinvertebrates
RSWA Moores Creek STP bridge downstream to its confluence with Bioassessments
the Rivanna River.
VAV-H28R RVN01A00 / Rivanna River / Rivanna River from its 4A Benthic Macroinvertebrates
confluence with North/South Fork Rivanna downstream to its Bioassessments
confluence with Moores Creek.
VAV-H29R RVN04A00 / Rivanna River / Rivanna River from its 4A Benthic Macroinvertebrates
confluence with Moores Creek downstream to its confluence with an Bioassessments
unnamed tributary just below the RWSA-Glenmore STP.
Rivanna River/Moores Creek
Aquatic Life
Benthic Macroinvertebrates Bioassessments - Total Impaired Size by Water Type:
Sources:
Agriculture
Unrestricted Cattle Access
Cycle TMDL
First
Dev.
Water
Listed
Priority
Size
2008
L
0.54
1996
L
5.48
2006
L
5.91
Estuary Reservoir River
(Sq. Miles) (Acres) (Miles)
11.93
Impervious Surface/Parking Municipal (Urbanized High Source Unknown
Lot Runoff Density Area)
Final 2020 Appendix 5 - 1012
Fact Sheets for
Impaired (Category 4 or 5) Waters in 2020
James River Basin
Cause Group Code: H28R-03-BAC Meadow Creek
Cause Location: Meadow Creek from where it becomes a perennial stream downstream to its confluence with the Rivanna River.
(Start Mile: 4.98 End Mile: 0.00 Total Impaired Size: 4.98 Miles)
City / County: Albemarle Co. Charlottesville City
Use(s): Recreation
Cause(s) / VA Category: Escherichia coil (E. coil) / 4A Fecal Coliform / 4A
This segment is impaired due to exceedances of the a-coli bacteria WQS at station: 2-MWC000.60 (10 exceedances of 23
samples for e-coli). Initial Listing Date: 2002. This segment is included in the EPA approved Meadow Creek bacteria TMDL.
Federal TMDL ID # 35779.
Cycle TMDL
Cause First Dev. Water
Assessment Unit / Water Name / Location Desc. Category Cause Name Listed Priority Size
VAV-H28R_MWC01A00 / Meadow Creek / Meadow Creek from 4A Escherichia coli E. coli) 2008 L 4.98
where it becomes a perennial stream downstream to its confluence
with the Rivanna River.
Meadow Creek Estuary Reservoir River
Recreation (Sq. Miles) (Acres) (Miles)
Escherichia coil (E. coil) - Total Impaired Size by Water Type: 4.98
Cycle TMDL
Cause
First Dev.
Water
Assessment Unit / Water Name / Location Desc.
Category Cause Name
Listed Priority
Size
VAV-H28R_MWC01A00 / Meadow Creek / Meadow Creek from
4A Fecal Coliform
2002 L
4.98
where it becomes a perennial stream downstream to its confluence
with the Rivanna River.
Meadow Creek
Estuary Reservoir
River
Recreation
(Sq. Miles) (Acres)
(Miles)
Fecal Coliform - Total Impaired
Size by Water Type:
4.98
Sources:
Agriculture Municipal (Urbanized High
Sanitary Sewer Overflows
Sewage Discharges in
Density Area)
(Collection System Failures)
Unsewered Areas
Unrestricted Cattle Access Wildlife Other than
Waterfowl
Final 2020 Appendix 5 - 1015
Fact Sheets for
Impaired (Category 4 or 5) Waters in 2020
James River Basin
Cause Group Code: H28R-05-BEN Meadow Creek
Cause Location: Meadow Creek from where it becomes a perennial stream downstream to its confluence with Moores Creek. (Start
Mile: 4.98 End Mile: 0.00 Total Impaired Size: 4.98 Miles)
City / County: Albemarle Co. Charlottesville City
Use(s): Aquatic Life
Cause(s) / VA Category: Benthic Macroinvertebrates Bioassessments / 4A
This segment is impaired due to exceedances of the General Standard for Benthics at station: 2-MWC000.60 (Impaired for
VSCI); 2-MWC-MWC03-RCA (Impaired for VSCI) 2-MWC-MWC07-RCA (Impaired for VSCI); 2-MWC-MWC05-RCA (Impaired
for VSCI); 2-MWC-MWC06-RCA (Impaired for VSCI); 2-MWC-MWC08-RCA (Impaired for VSCI); 2-MWC-MWC09-RCA
(Impaired for VSCI); 2-MWC-MWC10-RCA Impaired for VSCI). Initial Listing Date: 2006.
Assessment Unit / Water Name / Location Desc.
VAV-H28R_MWC01A00 / Meadow Creek / Meadow Creek from
where it becomes a perennial stream downstream to its confluence
with the Rivanna River.
Cycle TMDL
Cause First Dev. Water
Category Cause Name Listed Priority Size
4A Benthic Macroinvertebrates 2006 L 4.98
Bioassessments
Meadow Creek Estuary Reservoir River
Aquatic Life (Sq. Miles) (Acres) (Miles)
Benthic Macroinvertebrates Bioassessments - Total Impaired Size by Water Type: 4.98
Sources:
Impervious Surface/Parking Loss of Riparian Habitat Municipal (Urbanized High
Lot Runoff Density Area)
Final 2020 Appendix 5 - 1018
Post -development Erosion
and Sedimentation
Fact Sheets for
Impaired (Category 4 or 5) Waters in 2020
James River Basin
Cause Group Code: H28R-06-BAC Rivanna River
Cause Location: Rivanna River from its confluence with the North/South Fork Rivanna downstream to its confluence with Moores
Creek. (Start Mile: 41.43 End Mile: 35.94 Total Impaired Size: 5.49 Miles)
City / County: Albemarle Co. Charlottesville City
Use(s): Recreation
Cause(s) / VA Category: Escherichia coil (E. coil) / 4A
This segment is impaired due to exceedances of the a-coli bacteria WQS at station: 2-RVN037.54 (2 exceedances of 10
samples for a-coli in 2010, 0 of 2 in 2012, no new data in 2016/18, so impairment carries forward to 2018). Initial Listing Date:
2006. This segment is included in the EPA approved Rivanna River bacteria TMDL. Federal TMDL ID # 35768.
Cycle TMDL
Cause First Dev. Water
Assessment Unit / Water Name / Location Desc. Category Cause Name Listed Priority Size
VAV-H28R RVN01A00 / Rivanna River / Rivanna River from its 4A Escherichia coli E. coli) 2006 L 5.48
confluence with North/South Fork Rivanna downstream to its
confluence with Moores Creek.
Rivanna River Estuary Reservoir River
Recreation (Sq. Miles) (Acres) (Miles)
Escherichia coil (E. coil) - Total Impaired Size by Water Type: 5.48
Sources:
Non -Point Source
Final 2020 Appendix 5 - 1019
SECTION 8
QUALIFIED PERSONNEL
QUALIFIED PERSONNEL
THE FOLLOWING PERSONNEL ARE RESPONSIBLE FOR IMPLEMENTING THE POLLUTION
PREVENTION PLAN AND PERFORMING WEEKLY TOOBOX MEETINGS AND INSPECTIONS ON THE
PROJECT SITE:
CONSTRUCTION ACTIVITY OPERATOR
COMPANY NAME:
DUNLORA INVESTMENTS, LLC
CONTACT NAME:
ALAN TAYLOR
QUALIFICATION:
PHONE NUMBER:
434-245-4970
EMAIL:
aIan@riverbenddev.com
QAULIFIED INSPECTOR/CONTRACTOR
COMPANY NAME:
CONTACT NAME:
QUALIFICATION:
PHONE NUMBER:
EMAIL:
QAULIFIED SUBCONTRACTOR/CONSTRUCTION MANAGER
COMPANY NAME:
CONTACT NAME:
QUALIFICATION:
PHONE NUMBER:
EMAIL:
SECTION 9
1414,4919 DF-A 9 RR, I
CERTIFICATION
"I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry of the
person or persons who manage the system, or those persons directly responsible for gathering
the information, the information submitted is, to the best of my knowledge and belief, true,
accurate, and complete. I am aware that there are significant penalties for submitting false
information, including the possibility of fine and imprisonment for knowing violations."
OPERATOR NAME: ALAN TAYLOR
COMPANY: DUNLORA INVESTMENTS, LLC
TITLE: PRESIDENT
SIGNATURE:`—i(.
DATE: 11/05/2021
SECTION 10
DELEGATION OF AUTHORITY
DELEGATION OF AUTHORITY
(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:
APPENDIX A
DEPARTMENT OF ENVIRONMENTAL QUALITY GENERAL PERMIT
COMMONWEALTH of VIRGINIA
DEPARTMENT OF ENVIRONMENTAL QUALITY
General Permit No.: VAR10
Effective Date: July 1, 2019
Expiration Date: June 30, 2024
GENERAL VPDES PERMIT FOR DISCHARGES OF
STORMWATER FROM CONSTRUCTION ACTIVITIES
AUTHORIZATION TO DISCHARGE UNDER THE VIRGINIA STORMWATER MANAGEMENT
PROGRAM AND THE VIRGINIA STORMWATER MANAGEMENT ACT
In compliance with the provisions of the Clean Water Act, as amended, and pursuant to the
Virginia Stormwater Management Act and regulations adopted pursuant thereto, operators of
construction activities are authorized to discharge to surface waters within the boundaries of the
Commonwealth of Virginia, except those specifically named in State Water Control Board
regulations that prohibit such discharges.
The authorized discharge shall be in accordance with the registration statement filed with the
Department of Environmental Quality, this cover page, Part I - Discharge Authorization and
Special Conditions, Part II - Stormwater Pollution Prevention Plan, and Part III - Conditions
Applicable to All VPDES Permits as set forth in this general permit.
Construction General Permit
Effective July 1, 2019
Page 2 of 26
10M.T 1
DISCHARGE AUTHORIZATION AND SPECIAL CONDITIONS
A. Coverage under this general permit.
During the period beginning with the date of coverage under this general permit and lasting
until the general permit's expiration date, the operator is authorized to discharge stormwater
from construction activities.
This general permit also authorizes stormwater discharges from support activities (e.g.,
concrete or asphalt batch plants, equipment staging yards, material storage areas, excavated
material disposal areas, borrow areas) located on -site or off -site provided that:
a. The support activity is directly related to the construction activity that is required to have
general permit coverage for discharges of stormwater from construction activities;
b. The support activity is not a commercial operation, nor does it serve multiple unrelated
construction activities by different operators;
c. The support activity does not operate beyond the completion of the last construction
activity it supports;
d. The support activity is identified in the registration statement at the time of general permit
coverage;
e. Appropriate control measures are identified in a stormwater pollution prevention plan and
implemented to address the discharges from the support activity areas; and
f. All applicable state, federal, and local approvals are obtained for the support activity.
B. Limitations on coverage.
1. Post -construction discharges. This general permit does not authorize stormwater discharges
that originate from the site after construction activities have been completed and the site,
including any support activity sites covered under the general permit registration, has
undergone final stabilization. Post -construction industrial stormwater discharges may need to
be covered by a separate VPDES permit.
Discharges mixed with nonstormwater. This general permit does not authorize discharges that
are mixed with sources of nonstormwater, other than those discharges that are identified in
Part I E (Authorized nonstormwater discharges) and are in compliance with this general
permit.
Discharges covered by another state permit. This general permit does not authorize
discharges of stormwater from construction activities that have been covered under an
individual permit or required to obtain coverage under an alternative general permit.
Page 3 of 26
4. Impaired waters and total maximum daily load (TMDL) limitation.
Nutrient and sediment impaired waters. Discharges of stormwater from construction
activities to surface waters identified as impaired in the 2016 § 305(b)/303(d) Water
Quality Assessment Integrated Report or for which a TMDL wasteload allocation has
been established and approved prior to the term of this general permit for (i) sediment
or a sediment -related parameter (i.e., total suspended solids or turbidity) or (ii)
nutrients (i.e., nitrogen or phosphorus) are not eligible for coverage under this general
permit unless the operator develops, implements, and maintains a stormwater
pollution prevention plan (SWPPP) in accordance with Part II B 5 of this permit that
minimizes the pollutants of concern and, when applicable, is consistent with the
assumptions and requirements of the approved TMDL wasteload allocations and
implements an inspection frequency consistent with Part II G 2 a.
Polychlorinated biphenyl (PCB) impaired waters. Discharges of stormwater from
construction activities that include the demolition of any structure with at least 10,000
square feet of floor space built or renovated before January 1, 1980, to surface waters
identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment
Integrated Report or for which a TMDL wasteload allocation has been established and
approved prior to the term of this general permit for PCB are not eligible for coverage
under this general permit unless the operator develops, implements, and maintains a
SWPPP in accordance with Part II B 6 of this permit that minimizes the pollutants of
concern and, when applicable, is consistent with the assumptions and requirements
of the approved TMDL wasteload allocations, and implements an inspection frequency
consistent with Part II G 2 a.
Exceptional waters limitation. Discharges of stormwater from construction activities not
previously covered under the general permit effective on July 1, 2014, to exceptional waters
identified in 9VAC25-260-30 A 3 c are not eligible for coverage under this general permit
unless the operator develops, implements, and maintains a SWPPP in accordance with Part
II B 7 of this permit and implements an inspection frequency consistent with Part II G 2 a.
6. There shall be no discharge of floating solids or visible foam in other than trace amounts
C. Commingled discharges. Discharges authorized by this general permit may be commingled
with other sources of stormwater that are not required to be covered under a state permit, so long
as the commingled discharge is in compliance with this general permit. Discharges authorized by
a separate state or VPDES permit may be commingled with discharges authorized by this general
permit so long as all such discharges comply with all applicable state and VPDES permit
requirements.
D. Prohibition of nonstormwater discharges. Except as provided in Parts I A 2, 1 C, and I E, all
discharges covered by this general permit shall be composed entirely of stormwater associated
with construction activities. All other discharges including the following are prohibited:
1. Wastewater from washout of concrete;
2. Wastewater from the washout and cleanout of stucco, paint, form release oils, curing
compounds, and other construction materials;
Page 4 of 26
3. Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance;
4. Oils, toxic substances, or hazardous substances from spills or other releases; and
5. Soaps, solvents, or detergents used in equipment and vehicle washing.
E. Authorized nonstormwater discharges. The following nonstormwater discharges from
construction activities are authorized by this general permit when discharged in compliance with
this general permit:
1. Discharges from firefighting activities;
2. Fire hydrant flushings;
3. Waters used to wash vehicles or equipment where soaps, solvents, or detergents have not
been used and the wash water has been filtered, settled, or similarly treated prior to discharge;
4. Water used to control dust that has been filtered, settled, or similarly treated prior to discharge;
5. Potable water sources, including uncontaminated waterline flushings, managed in a manner
to avoid an instream impact;
6. Routine external building wash down where soaps, solvents or detergents have not been used
and the wash water has been filtered, settled, or similarly treated prior to discharge;
7. Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred
(or where all spilled or leaked material has been removed prior to washing); where soaps,
solvents, or detergents have not been used; and where the wash water has been filtered,
settled, or similarly treated prior to discharge;
8. Uncontaminated air conditioning or compressor condensate;
9. Uncontaminated ground water or spring water;
10. Foundation or footing drains where flows are not contaminated with process materials such
as solvents;
11. Uncontaminated excavation dewatering, including dewatering of trenches and excavations
that have been filtered, settled, or similarly treated prior to discharge; and
12. Landscape irrigation.
F. Termination of general permit coverage.
1. The operator of the construction activity shall submit a notice of termination in accordance
with 9VAC25-880-60, unless a registration statement was not required to be submitted in
accordance with 9VAC25-880-50 A 1 c or A 2 b for single-family detached residential
structures, to the VSMP authority after one or more of the following conditions have been met:
Page 5 of 26
a. Necessary permanent control measures included in the SWPPP for the site are in place
and functioning effectively and final stabilization has been achieved on all portions of the
site for which the operator has operational control. When applicable, long term
responsibility and maintenance requirements for permanent control measures shall be
recorded in the local land records prior to the submission of a complete and accurate
notice of termination and the construction record drawing prepared;
b. Another operator has assumed control over all areas of the site that have not been finally
stabilized and obtained coverage for the ongoing discharge;
c. Coverage under an alternative VPDES or state permit has been obtained; or
d. For individual lots in residential construction only, final stabilization as defined in 9VAC25-
880-1 has been completed, including providing written notification to the homeowner and
incorporating a copy of the notification and signed certification statement into the SWPPP,
and the residence has been transferred to the homeowner.
The notice of termination shall be submitted no later than 30 days after one of the above
conditions in subdivision 1 of this subsection is met.
3. Termination of authorization to discharge for the conditions set forth in subdivision 1 a of this
subsection shall be effective upon notification from the department that the provisions of
subdivision 1 a of this subsection have been met or 60 days after submittal of a complete and
accurate notice of termination in accordance with 9VAC25-880-60 C, whichever occurs first.
4. Authorization to discharge terminates at midnight on the date that the notice of termination is
submitted for the conditions set forth in subdivisions 1 b through 1 d of this subsection unless
otherwise notified by the VSMP authority or department.
5. The notice of termination shall be signed in accordance with Part III K of this general permit.
G. Water quality protection.
1. The operator shall select, install, implement, and maintain control measures as identified in
the SWPPP at the construction site that minimize pollutants in the discharge as necessary to
ensure that the operator's discharge does not cause or contribute to an excursion above any
applicable water quality standard.
If it is determined by the department that the operator's discharges are causing, have
reasonable potential to cause, or are contributing to an excursion above any applicable water
quality standard, the department, in consultation with the VSMP authority, may take
appropriate enforcement action and require the operator to:
a. Modify or implement additional control measures in accordance with Part II C to
adequately address the identified water quality concerns;
b. Submit valid and verifiable data and information that are representative of ambient
conditions and indicate that the receiving water is attaining water quality standards; or
Page 6 of 26
c. Submit an individual permit application in accordance with 9VAC25-870-410 B 3.
All written responses required under this chapter shall include a signed certification
consistent with Part III K.
STORMWATER POLLUTION PREVENTION PLAN
A. Stormwater pollution prevent plan.
A stormwater pollution prevention plan (SWPPP) shall be developed prior to the submission
of a registration statement and implemented for the construction activity, including any support
activity, covered by this general permit. SWPPPs shall be prepared in accordance with good
engineering practices. Construction activities that are part of a larger common plan of
development or sale and disturb less than one acre may utilize a SWPPP template provided
by the department and need not provide a separate stormwater management plan if one has
been prepared and implemented for the larger common plan of development or sale.
The SWPPP requirements of this general permit may be fulfilled by incorporating by reference
other plans such as a spill prevention control and countermeasure (SPCC) plan developed for
the site under § 311 of the federal Clean Water Act or best management practices (BMP)
programs otherwise required for the facility provided that the incorporated plan meets or
exceeds the SWPPP requirements of Part II B. All plans incorporated by reference into the
SWPPP become enforceable under this general permit. If a plan incorporated by reference
does not contain all of the required elements of the SWPPP, the operator shall develop the
missing elements and include them in the SWPPP.
3. Any operator that was authorized to discharge under the general permit effective July 1, 2014,
and that intends to continue coverage under this general permit, shall update its stormwater
pollution prevention plan to comply with the requirements of this general permit no later than
60 days after the date of coverage under this general permit.
B. Contents. The SWPPP shall include the following items:
1. General information.
a. A signed copy of the registration statement, if required, for coverage under the general
VPDES permit for discharges of stormwater from construction activities;
b. Upon receipt, a copy of the notice of coverage under the general VPDES permit for
discharges of stormwater from construction activities (i.e., notice of coverage letter);
c. Upon receipt, a copy of the general VPDES permit for discharges of stormwater from
construction activities;
d. A narrative description of the nature of the construction activity, including the function of
the project (e.g., low density residential, shopping mall, highway, etc.);
e. A legible site plan identifying:
Page 7 of 26
(1) Directions of stormwater flow and approximate slopes anticipated after major grading
activities;
(2) Limits of land disturbance including steep slopes and natural buffers around surface
waters that will not be disturbed;
(3) Locations of major structural and nonstructural control measures, including sediment
basins and traps, perimeter dikes, sediment barriers, and other measures intended to
filter, settle, or similarly treat sediment, that will be installed between disturbed areas
and the undisturbed vegetated areas in order to increase sediment removal and
maximize stormwater infiltration;
(4) Locations of surface waters;
(5) Locations where concentrated stormwater is discharged;
(6) Locations of any support activities, including (i) areas where equipment and vehicle
washing, wheel wash water, and other wash water is to occur; (ii) storage areas for
chemicals such as acids, fuels, fertilizers, and other lawn care chemicals; (iii) concrete
wash out areas; (iv) vehicle fueling and maintenance areas; (v) sanitary waste
facilities, including those temporarily placed on the construction site; and (vi)
construction waste storage; and
(7) When applicable, the location of the on -site rain gauge or the methodology established
in consultation with the VSMP authority used to identify measurable storm events for
inspection as allowed by Part II G 2 a (1) (ii) or Part II G 2 b (2).
Erosion and sediment control plan.
a. An erosion and sediment control plan designed and approved in accordance with the
Virginia Erosion and Sediment Control Regulations (9VAC25-840), an "agreement in lieu
of a plan" as defined in 9VAC25-840-10 from the VESCP authority, or an erosion and
sediment control plan prepared in accordance with annual standards and specifications
approved by the department.
b. All erosion and sediment control plans shall include a statement describing the
maintenance responsibilities required for the erosion and sediment controls used.
c. An approved erosion and sediment control plan, "agreement in lieu of a plan," or erosion
and sediment control plan prepared in accordance with department -approved annual
standards and specifications, implemented to:
(1) Control the volume and velocity of stormwater runoff within the site to minimize soil
erosion;
(2) Control stormwater discharges, including peak flow rates and total stormwater volume,
to minimize erosion at outlets and to minimize downstream channel and stream bank
erosion;
Page 8 of 26
(3) Minimize the amount of soil exposed during the construction activity;
(4) Minimize the disturbance of steep slopes;
(5) Minimize sediment discharges from the site in a manner that addresses (i) the amount,
frequency, intensity, and duration of precipitation; (ii) the nature of resulting stormwater
runoff; and (iii) soil characteristics, including the range of soil particle sizes present on
the site;
(6) Provide and maintain natural buffers around surface waters, direct stormwater to
vegetated areas to increase sediment removal, and maximize stormwater infiltration,
unless infeasible;
(7) Minimize soil compaction and, unless infeasible, preserve topsoil;
(8) Ensure initiation of stabilization activities, as defined in 9VAC25-880-1, of disturbed
areas immediately whenever any clearing, grading, excavating, or other land -
disturbing activities have permanently ceased on any portion of the site, or temporarily
ceased on any portion of the site and will not resume for a period exceeding 14 days;
and
(9) Utilize outlet structures that withdraw stormwater from the surface (i.e., above the
permanent pool or wet storage water surface elevation), unless infeasible, when
discharging from sediment basins or sediment traps.
3. Stormwater management plan.
a. Except for those projects identified in Part II B 3 b, a stormwater management plan
approved by the VSMP authority as authorized under the Virginia Stormwater
Management Program (VSMP) Regulation (9VAC25-870), or an "agreement in lieu of a
stormwater management plan" as defined in 9VAC25-870-10 from the VSMP authority, or
a stormwater management plan prepared in accordance with annual standards and
specifications approved by the department.
b. For any operator meeting the conditions of 9VAC25-870-47 B of the VSMP regulation, an
approved stormwater management plan is not required. In lieu of an approved stormwater
management plan, the SWPPP shall include a description of, and all necessary
calculations supporting, all post -construction stormwater management measures that will
be installed prior to the completion of the construction process to control pollutants in
stormwater discharges after construction operations have been completed. Structural
measures should be placed on upland soils to the degree possible. Such measures must
be designed and installed in accordance with applicable VESCP authority, VSMP
authority, state, and federal requirements, and any necessary permits must be obtained.
Pollution prevention plan. A pollution prevention plan that addresses potential pollutant -
generating activities that may reasonably be expected to affect the quality of stormwater
discharges from the construction activity, including any support activity. The pollution
prevention plan shall:
a. Identify the potential pollutant -generating activities and the pollutant that is expected to be
exposed to stormwater;
Page 9 of 26
b. Describe the location where the potential pollutant -generating activities will occur, or if
identified on the site plan, reference the site plan;
c. Identify all nonstormwater discharges, as authorized in Part I E of this general permit, that
are or will be commingled with stormwater discharges from the construction activity,
including any applicable support activity;
d. Identify the person responsible for implementing the pollution prevention practice or
practices for each pollutant -generating activity (if other than the person listed as the
qualified personnel);
e. Describe the pollution prevention practices and procedures that will be implemented to:
(1) Prevent and respond to leaks, spills, and other releases including (i) procedures for
expeditiously stopping, containing, and cleaning up spills, leaks, and other releases;
and (ii) procedures for reporting leaks, spills, and other releases in accordance with
Part III G;
(2) Prevent the discharge of spilled and leaked fuels and chemicals from vehicle fueling
and maintenance activities (e.g., providing secondary containment such as spill
berms, decks, spill containment pallets, providing cover where appropriate, and having
spill kits readily available);
(3) Prevent the discharge of soaps, solvents, detergents, and wash water from
construction materials, including the clean-up of stucco, paint, form release oils, and
curing compounds (e.g., providing (i) cover (e.g., plastic sheeting or temporary roofs)
to prevent contact with stormwater; (ii) collection and proper disposal in a manner to
prevent contact with stormwater; and (iii) a similarly effective means designed to
prevent discharge of these pollutants);
(4) Minimize the discharge of pollutants from vehicle and equipment washing, wheel wash
water, and other types of washing (e.g., locating activities away from surface waters
and stormwater inlets or conveyance and directing wash waters to sediment basins or
traps, using filtration devices such as filter bags or sand filters, or using similarly
effective controls);
(5) Direct concrete wash water into a leak -proof container or leak -proof settling basin. The
container or basin shall be designed so that no overflows can occur due to inadequate
sizing or precipitation. Hardened concrete wastes shall be removed and disposed of
in a manner consistent with the handling of other construction wastes. Liquid concrete
wastes shall be removed and disposed of in a manner consistent with the handling of
other construction wash waters and shall not be discharged to surface waters;
(6) Minimize the discharge of pollutants from storage, handling, and disposal of
construction products, materials, and wastes including (i) building products such as
asphalt sealants, copper flashing, roofing materials, adhesives, and concrete
admixtures; (ii) pesticides, herbicides, insecticides, fertilizers, and landscape
Page 10 of 26
materials; and (iii) construction and domestic wastes such as packaging materials,
scrap construction materials, masonry products, timber, pipe and electrical cuttings,
plastics, Styrofoam, concrete, and other trash or building materials;
(7) Prevent the discharge of fuels, oils, and other petroleum products, hazardous or toxic
wastes, waste concrete, and sanitary wastes;
(8) Address any other discharge from the potential pollutant -generating activities not
addressed above;
(9) Minimize the exposure of waste materials to precipitation by closing or covering waste
containers during precipitation events and at the end of the business day, or
implementing other similarly effective practices. Minimization of exposure is not
required in cases where the exposure to precipitation will not result in a discharge of
pollutants; and
f. Describe procedures for providing pollution prevention awareness of all applicable wastes,
including any wash water, disposal practices, and applicable disposal locations of such
wastes, to personnel in order to comply with the conditions of this general permit. The
operator shall implement the procedures described in the SWPPP.
SWPPP requirements for discharges to nutrient and sediment impaired waters. For
discharges to surface waters (i) identified as impaired in the 2016 § 305(b)/303(d) Water
Quality Assessment Integrated Report or (ii) with an applicable TMDL wasteload allocation
established and approved prior to the term of this general permit for sediment for a sediment -
related parameter (i.e., total suspended solids or turbidity) or nutrients (i.e., nitrogen or
phosphorus), the operator shall:
a. Identify the impaired waters, approved TMDLs, and pollutants of concern in the SWPPP;
and
b. Provide clear direction in the SWPPP that:
(1) Permanent or temporary soil stabilization shall be applied to denuded areas within
seven days after final grade is reached on any portion of the site;
(2) Nutrients shall be applied in accordance with manufacturer's recommendations or an
approved nutrient management plan and shall not be applied during rainfall events;
and
(3) A modified inspection schedule shall be implemented in accordance with Part II G 2 a.
SWPPP requirements for discharges to polychlorinated biphenyl (PCB) impaired waters. For
discharges from construction activities that include the demolition of any structure with at least
10,000 square feet of floor space built or renovated before January 1, 1980, to surface waters
(i) identified as impaired in the 2016 § 305(b)/303(d) Water Quality Assessment Integrated
Report or (ii) with an applicable TMDL wasteload allocation established and approved prior to
the term of this general permit for PCB, the operator shall:
Page 11 of 26
a. Identify the impaired waters, approved TMDLs, and pollutant of concern in the SWPPP;
b. Implement the approved erosion and sediment control plan in accordance with Part II B 2;
c. Dispose of waste materials in compliance with applicable state, federal, and local
requirements; and
d. Implement a modified inspection schedule in accordance with Part II G 2 a.
7. SWPPP requirements for discharges to exceptional waters. For discharges to surface waters
identified in 9VAC25-260-30 A 3 c as an exceptional water, the operator shall:
a. Identify the exceptional surface waters in the SWPPP; and
b. Provide clear direction in the SWPPP that:
(1) Permanent or temporary soil stabilization shall be applied to denuded areas within
seven days after final grade is reached on any portion of the site;
(2) Nutrients shall be applied in accordance with manufacturer's recommendations or an
approved nutrient management plan and shall not be applied during rainfall events;
and
(3) A modified inspection schedule shall be implemented in accordance with Part II G 2 a.
8. Identification of qualified personnel. The name, phone number, and qualifications of the
qualified personnel conducting inspections required by this general permit.
9. Delegation of authority. The individuals or positions with delegated authority, in accordance
with Part III K, to sign inspection reports or modify the SWPPP.
10. SWPPP signature. The SWPPP shall be signed and dated in accordance with Part III K.
C. SWPPP amendments, modification, and updates.
1. The operator shall amend the SWPPP whenever there is a change in the design, construction,
operation, or maintenance that has a significant effect on the discharge of pollutants to surface
waters and that has not been previously addressed in the SWPPP.
The SWPPP shall be amended if, during inspections or investigations by the operator's
qualified personnel, or by local, state, or federal officials, it is determined that the existing
control measures are ineffective in minimizing pollutants in discharges from the construction
activity. Revisions to the SWPPP shall include additional or modified control measures
designed and implemented to correct problems identified. If approval by the VESCP authority,
VSMP authority, or department is necessary for the control measure, revisions to the SWPPP
shall be completed no later than seven calendar days following approval. Implementation of
these additional or modified control measures shall be accomplished as described in Part II
H.
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3. The SWPPP shall clearly identify the contractors that will implement and maintain each control
measure identified in the SWPPP. The SWPPP shall be amended to identify any new
contractor that will implement and maintain a control measure.
4. The operator shall update the SWPPP as soon as possible but no later than seven days
following any modification to its implementation. All modifications or updates to the SWPPP
shall be noted and shall include the following items:
a. A record of dates when:
(1) Major grading activities occur;
(2) Construction activities temporarily or permanently cease on a portion of the site; and
(3) Stabilization measures are initiated;
b. Documentation of replaced or modified controls where periodic inspections or other
information have indicated that the controls have been used inappropriately or incorrectly
and were modified;
c. Areas that have reached final stabilization and where no further SWPPP or inspection
requirements apply;
d. All properties that are no longer under the legal control of the operator and the dates on
which the operator no longer had legal control over each property;
e. The date of any prohibited discharges, the discharge volume released, and what actions
were taken to minimize the impact of the release;
f. Measures taken to prevent the reoccurrence of any prohibited discharge; and
g. Measures taken to address any evidence identified as a result of an inspection required
under Part II G.
5. Amendments, modifications, or updates to the SWPPP shall be signed in accordance with
Part III K.
D. Public notification. Upon commencement of land disturbance, the operator shall post
conspicuously a copy of the notice of coverage letter near the main entrance of the construction
activity. For linear projects, the operator shall post the notice of coverage letter at a publicly
accessible location near an active part of the construction project (e.g., where a pipeline crosses
a public road). The operator shall maintain the posted information until termination of general
permit coverage as specified in Part I F.
E. SWPPP availability.
1. Operators with day-to-day operational control over SWPPP implementation shall have a copy
of the SWPPP available at a central location on -site for use by those identified as having
responsibilities under the SWPPP whenever they are on the construction site.
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The operator shall make the SWPPP and all amendments, modifications, and updates
available upon request to the department, the VSMP authority, the EPA, the VESCP authority,
local government officials, or the operator of a municipal separate storm sewer system
receiving discharges from the construction activity. If an on -site location is unavailable to store
the SWPPP when no personnel are present, notice of the SWPPP's location shall be posted
near the main entrance of the construction site.
The operator shall make the SWPPP available for public review in an electronic format or in
hard copy. Information for public access to the SWPPP shall be posted and maintained in
accordance with Part II D. If not provided electronically, public access to the SWPPP may be
arranged upon request at a time and at a publicly accessible location convenient to the
operator or his designee but shall be no less than once per month and shall be during normal
business hours. Information not required to be contained within the SWPPP by this general
permit is not required to be released.
F. SWPPP implementation. The operator shall implement the SWPPP and subsequent
amendments, modifications, and updates from commencement of land disturbance until
termination of general permit coverage as specified in Part I F.
All control measures shall be properly maintained in effective operating condition in
accordance with good engineering practices and, where applicable, manufacturer
specifications. If a site inspection required by Part II G identifies a control measure that is not
operating effectively, corrective actions shall be completed as soon as practicable, but no later
than seven days after discovery or a longer period as established by the VSMP authority, to
maintain the continued effectiveness of the control measures.
If site inspections required by Part II G identify an existing control measure that needs to be
modified or if an additional or alternative control measure is necessary for any reason,
implementation shall be completed prior to the next anticipated measurable storm event. If
implementation prior to the next anticipated measurable storm event is impracticable, then
additional or alternative control measures shall be implemented as soon as practicable, but
no later than seven days after discovery or a longer period as established by the VSMP
authority.
G. SWPPP Inspections.
1. Personnel responsible for on -site and off -site inspections. Inspections required by this general
permit shall be conducted by the qualified personnel identified by the operator in the SWPPP.
The operator is responsible for ensuring that the qualified personnel conduct the inspection.
2. Inspection schedule.
a. For construction activities that discharge to a surface water identified in Part 11 B 5 and B
6 as impaired or having an approved TMDL or Part I B 7 as exceptional, the following
inspection schedule requirements apply:
(1) Inspections shall be conducted at a frequency of (i) at least once every four business
days or (ii) at least once every five business days and no later than 24 hours following
a measurable storm event. In the event that a measurable storm event occurs when
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there are more than 24 hours between business days, the inspection shall be
conducted on the next business day; and
(2) Representative inspections as authorized in Part II G 2 d shall not be allowed.
b. Except as specified in Part II G 2 a, inspections shall be conducted at a frequency of:
(1) At least once every five business days; or
(2) At least once every 10 business days and no later than 24 hours following a
measurable storm event. In the event that a measurable storm event occurs when
there are more than 24 hours between business days, the inspection shall be
conducted on the next business day.
c. Where areas have been temporarily stabilized or land -disturbing activities will be
suspended due to continuous frozen ground conditions and stormwater discharges are
unlikely, the inspection frequency described in Part II G 2 a and 2 b may be reduced to
once per month. If weather conditions (such as above freezing temperatures or rain or
snow events) make discharges likely, the operator shall immediately resume the regular
inspection frequency.
d. Except as prohibited in Part II G 2 a (2), representative inspections may be utilized for
utility line installation, pipeline construction, or other similar linear construction activities
provided that:
(1) Temporary or permanent soil stabilization has been installed and vehicle access may
compromise the temporary or permanent soil stabilization and potentially cause
additional land disturbance increasing the potential for erosion;
(2) Inspections occur on the same frequency as other construction activities;
(3) Control measures are inspected along the construction site 0.25 miles above and
below each access point (i.e., where a roadway, undisturbed right-of-way, or other
similar feature intersects the construction activity and access does not compromise
temporary or permanent soil stabilization); and
(4) Inspection locations are provided in the inspection report required by Part II G.
e. If adverse weather causes the safety of the inspection personnel to be in jeopardy, the
inspection may be delayed until the next business day on which it is safe to perform the
inspection. Any time inspections are delayed due to adverse weather conditions, evidence
of the adverse weather conditions shall be included in the SWPPP with the dates of
occurrence.
3. Inspection requirements.
a. As part of the inspection, the qualified personnel shall:
(1) Record the date and time of the inspection and, when applicable, the date and rainfall
amount of the last measurable storm event;
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(2) Record the information and a description of any discharges occurring at the time of
the inspection or evidence of discharges occurring prior to the inspection;
(3) Record any land -disturbing activities that have occurred outside of the approved
erosion and sediment control plan;
(4) Inspect the following for installation in accordance with the approved erosion and
sediment control plan, identification of any maintenance needs, and evaluation of
effectiveness in minimizing sediment discharge, including whether the control has
been inappropriately or incorrectly used:
(a) All perimeter erosion and sediment controls, such as silt fence;
(b) Soil stockpiles, when applicable, and borrow areas for stabilization or sediment
trapping measures;
(c) Completed earthen structures, such as dams, dikes, ditches, and diversions for
stabilization and effective impoundment or flow control;
(d) Cut and fill slopes;
(e) Sediment basins and traps, sediment barriers, and other measures installed to
control sediment discharge from stormwater;
(f) Temporary or permanent channels, flumes, or other slope drain structures
installed to convey concentrated runoff down cut and fill slopes;
(g) Storm inlets that have been made operational to ensure that sediment laden
stormwater does not enter without first being filtered or similarly treated; and
(h) Construction vehicle access routes that intersect or access paved or public roads
for minimizing sediment tracking;
(5) Inspect areas that have reached final grade or that will remain dormant for more than
14 days to ensure:
(a) Initiation of stabilization activities have occurred immediately, as defined in
9VAC25-880-1; and
(b) Stabilization activities have been completed within seven days of reaching grade
or stopping work;
(6) Inspect for evidence that the approved erosion and sediment control plan, "agreement
in lieu of a plan," or erosion and sediment control plan prepared in accordance with
department -approved annual standards and specifications has not been properly
implemented. This includes:
Page 16 of 26
(a) Concentrated flows of stormwater in conveyances such as rills, rivulets, or
channels that have not been filtered, settled, or similarly treated prior to discharge,
or evidence thereof;
(b) Sediment laden or turbid flows of stormwater that have not been filtered or settled
to remove sediments prior to discharge;
(c) Sediment deposition in areas that drain to unprotected stormwater inlets or catch
basins that discharge to surface waters. Inlets and catch basins with failing
sediment controls due to improper installation, lack of maintenance, or inadequate
design are considered unprotected;
(d) Sediment deposition on any property (including public and private streets) outside
of the construction activity covered by this general permit;
(e) Required stabilization has not been initiated or completed or is not effective on
portions of the site;
(f) Sediment basins without adequate wet or dry storage volume or sediment basins
that allow the discharge of stormwater from below the surface of the wet storage
portion of the basin;
(g) Sediment traps without adequate wet or dry storage or sediment traps that allow
the discharge of stormwater from below the surface of the wet storage portion of
the trap; and
(h) Land disturbance or sediment deposition outside of the approved area to be
disturbed;
(7) Inspect pollutant generating activities identified in the pollution prevention plan for the
proper implementation, maintenance, and effectiveness of the procedures and
practices;
(8) Identify any pollutant generating activities not identified in the pollution prevention plan;
and
(9) Identify and document the presence of any evidence of the discharge of pollutants
prohibited by this general permit.
4. Inspection report. Each inspection report shall include the following items:
a. The date and time of the inspection and, when applicable, the date and rainfall amount of
the last measurable storm event;
b. Summarized findings of the inspection;
c. The locations of prohibited discharges;
d. The locations of control measures that require maintenance;
Page 17 of 26
e. The locations of control measures that failed to operate as designed or proved inadequate
or inappropriate for a particular location;
f. The locations where any evidence identified under Part II G 3 a (6) exists;
g. The locations where any additional control measure is needed;
h. A list of corrective actions required (including any changes to the SWPPP that are
necessary) as a result of the inspection or to maintain permit compliance;
i. Documentation of any corrective actions required from a previous inspection that have not
been implemented; and
The date and signature of the qualified personnel and the operator or its duly authorized
representative.
5. The inspection report shall be included into the SWPPP no later than four business days after
the inspection is complete.
The inspection report and any actions taken in accordance with Part II shall be retained by
the operator as part of the SWPPP for at least three years from the date that general permit
coverage expires or is terminated. The inspection report shall identify any incidents of
noncompliance. Where an inspection report does not identify any incidents of noncompliance,
the report shall contain a certification that the construction activity is in compliance with the
SWPPP and this general permit. The report shall be signed in accordance with Part III K of
this general permit.
H. Corrective actions.
The operator shall implement the corrective actions identified as a result of an inspection as
soon as practicable but no later than seven days after discovery or a longer period as
approved by the VSMP authority. If approval of a corrective action by a regulatory authority
(e.g., VSMP authority, VESCP authority, or the department) is necessary, additional control
measures shall be implemented to minimize pollutants in stormwater discharges until such
approvals can be obtained.
The operator may be required to remove accumulated sediment deposits located outside of
the construction activity covered by this general permit as soon as practicable in order to
minimize environmental impacts. The operator shall notify the VSMP authority and the
department as well as obtain all applicable federal, state, and local authorizations,
approvals, and permits prior to the removal of sediments accumulated in surface waters
including wetlands.
Page 18 of 26
PART III
CONDITIONS APPLICABLE TO ALL VPDES PERMITS
NOTE: Discharge monitoring is not required for this general permit. If the operator chooses to
monitor stormwater discharges or control measures, the operator shall comply with the
requirements of subsections A, B, and C, as appropriate.
A. Monitoring.
1. Samples and measurements taken for the purpose of monitoring shall be representative of
the monitoring activity.
Monitoring shall be conducted according to procedures approved under 40 CFR Part 136 or
alternative methods approved by the U.S. Environmental Protection Agency, unless other
procedures have been specified in this general permit. Analyses performed according to test
procedures approved under 40 CFR Part 136 shall be performed by an environmental
laboratory certified under regulations adopted by the Department of General Services
(1 VAC30-45 or 1 VAC30-46).
3. The operator shall periodically calibrate and perform maintenance procedures on all
monitoring and analytical instrumentation at intervals that will ensure accuracy of
measurements.
B. Records.
1. Monitoring records and reports shall include
a. The date, exact place, and time of sampling or measurements;
b. The individuals who performed the sampling or measurements;
c. The dates and times analyses were performed;
d. The individuals who performed the analyses;
e. The analytical techniques or methods used; and
f. The results of such analyses.
2. The operator shall retain records of all monitoring information, including all calibration and
maintenance records and all original strip chart recordings for continuous monitoring
instrumentation, copies of all reports required by this general permit, and records of all data
used to complete the registration statement for this general permit, for a period of at least
three years from the date of the sample, measurement, report or request for coverage. This
period of retention shall be extended automatically during the course of any unresolved
litigation regarding the regulated activity or regarding control standards applicable to the
operator, or as requested by the board.
C. Reporting monitoring results.
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1. The operator shall update the SWPPP to include the results of the monitoring as may be
performed in accordance with this general permit, unless another reporting schedule is
specified elsewhere in this general permit.
2. Monitoring results shall be reported on a discharge monitoring report (DMR); on forms
provided, approved or specified by the department; or in any format provided that the date,
location, parameter, method, and result of the monitoring activity are included.
If the operator monitors any pollutant specifically addressed by this general permit more
frequently than required by this general permit using test procedures approved under 40 CFR
Part 136 or using other test procedures approved by the U.S. Environmental Protection
Agency or using procedures specified in this general permit, the results of this monitoring shall
be included in the calculation and reporting of the data submitted in the DMR or reporting form
specified by the department.
4. Calculations for all limitations which require averaging of measurements shall utilize an
arithmetic mean unless otherwise specified in this general permit.
D. Duty to provide information. The operator shall furnish, within a reasonable time, any
information which the board may request to determine whether cause exists for terminating this
general permit coverage or to determine compliance with this general permit. The board,
department, EPA, or VSMP authority may require the operator to furnish, upon request, such
plans, specifications, and other pertinent information as may be necessary to determine the effect
of the wastes from his discharge on the quality of surface waters, or such other information as
may be necessary to accomplish the purposes of the CWA and the Virginia Stormwater
Management Act. The operator shall also furnish to the board, department, EPA, or VSMP
authority, upon request, copies of records required to be kept by this general permit.
E. Compliance schedule reports. Reports of compliance or noncompliance with, or any progress
reports on, interim and final requirements contained in any compliance schedule of this general
permit shall be submitted no later than 14 days following each schedule date.
F. Unauthorized stormwater discharges. Pursuant to § 62.1-44.5 of the Code of Virginia, except
in compliance with a state permit issued by the department, it shall be unlawful to cause a
stormwater discharge from a construction activity.
G. Reports of unauthorized discharges. Any operator who discharges or causes or allows a
discharge of sewage, industrial waste, other wastes or any noxious or deleterious substance or a
hazardous substance or oil in an amount equal to or in excess of a reportable quantity established
under either 40 CFR Part 110, 40 CFR Part 117, 40 CFR Part 302, or § 62.1-44.34:19 of the Code
of Virginia that occurs during a 24-hour period into or upon surface waters or who discharges or
causes or allows a discharge that may reasonably be expected to enter surface waters, shall
notify the Department of Environmental Quality of the discharge immediately upon discovery of
the discharge, but in no case later than within 24 hours after said discovery. A written report of
the unauthorized discharge shall be submitted to the department and the VSMP authority within
five days of discovery of the discharge. The written report shall contain:
1. A description of the nature and location of the discharge;
2. The cause of the discharge;
Page 20 of 26
3. The date on which the discharge occurred;
4. The length of time that the discharge continued;
5. The volume of the discharge;
6. If the discharge is continuing, how long it is expected to continue;
7. If the discharge is continuing, what the expected total volume of the discharge will be; and
Any steps planned or taken to reduce, eliminate and prevent a recurrence of the present
discharge or any future discharges not authorized by this general permit.
Discharges reportable to the department and the VSMP authority under the immediate reporting
requirements of other regulations are exempted from this requirement.
H. Reports of unusual or extraordinary discharges. If any unusual or extraordinary discharge
including a "bypass" or "upset," as defined in this general permit, should occur from a facility and
the discharge enters or could be expected to enter surface waters, the operator shall promptly
notify, in no case later than within 24 hours, the department and the VSMP authority by telephone
after the discovery of the discharge. This notification shall provide all available details of the
incident, including any adverse effects on aquatic life and the known number of fish killed. The
operator shall reduce the report to writing and shall submit it to the department and the VSMP
authority within five days of discovery of the discharge in accordance with Part III 12. Unusual
and extraordinary discharges include any discharge resulting from:
1. Unusual spillage of materials resulting directly or indirectly from processing operations;
2. Breakdown of processing or accessory equipment;
3. Failure or taking out of service of some or all of the facilities; and
4. Flooding or other acts of nature.
I. Reports of noncompliance. The operator shall report any noncompliance which may adversely
affect surface waters or may endanger public health.
An oral report to the department and the VSMP authority shall be provided within 24 hours
from the time the operator becomes aware of the circumstances. The following shall be
included as information that shall be reported within 24 hours under this subdivision:
a. Any unanticipated bypass; and
b. Any upset that causes a discharge to surface waters.
2. A written report shall be submitted within five days and shall contain:
a. A description of the noncompliance and its cause;
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b. The period of noncompliance, including exact dates and times, and if the noncompliance
has not been corrected, the anticipated time it is expected to continue; and
c. Steps taken or planned to reduce, eliminate, and prevent reoccurrence of the
noncompliance.
The department may waive the written report on a case -by -case basis for reports of
noncompliance under Part III I if the oral report has been received within 24 hours and no
adverse impact on surface waters has been reported.
3. The operator shall report all instances of noncompliance not reported under Part III 1 1 or 2 in
writing as part of the SWPPP. The reports shall contain the information listed in Part 111 1 2.
NOTE: The reports required in Part III G, H and I shall be made to the department and the VSMP
authority. Reports may be made by telephone, email, or by fax. For reports outside normal working
hours, leaving a recorded message shall fulfill the immediate reporting requirement. For
emergencies, the Virginia Department of Emergency Management maintains a 24-hour telephone
service at 1-800-468-8892.
4. Where the operator becomes aware of a failure to submit any relevant facts, or submittal of
incorrect information in any report, including a registration statement, to the department or the
VSMP authority, the operator shall promptly submit such facts or correct information.
J. Notice of planned changes.
1. The operator shall give notice to the department and the VSMP authority as soon as possible
of any planned physical alterations or additions to the permitted facility or activity. Notice is
required only when:
a. The operator plans an alteration or addition to any building, structure, facility, or installation
that may meet one of the criteria for determining whether a facility is a new source in
9VAC25-870-420;
b. The operator plans an alteration or addition that would significantly change the nature or
increase the quantity of pollutants discharged. This notification applies to pollutants that
are not subject to effluent limitations in this general permit; or
2. The operator shall give advance notice to the department and VSMP authority of any planned
changes in the permitted facility or activity, which may result in noncompliance with state
permit requirements.
K. Signatory requirements.
1. Registration statement. All registration statements shall be signed as follows:
a. For a corporation: by a responsible corporate officer. For the purpose of this chapter, a
responsible corporate officer means: (i) a president, secretary, treasurer, or vice-president
of the corporation in charge of a principal business function, or any other person who
performs similar policy -making or decision -making functions for the corporation; or (ii) the
manager of one or more manufacturing, production, or operating facilities, provided the
Page 22 of 26
manager is authorized to make management decisions that govern the operation of the
regulated facility including having the explicit or implicit duty of making major capital
investment recommendations, and initiating and directing other comprehensive measures
to assure long-term compliance with environmental laws and regulations; the manager
can ensure that the necessary systems are established or actions taken to gather
complete and accurate information for state permit application requirements; and where
authority to sign documents has been assigned or delegated to the manager in
accordance with corporate procedures;
b. For a partnership or sole proprietorship: by a general partner or the proprietor,
respectively; or
c. For a municipality, state, federal, or other public agency: by either a principal executive
officer or ranking elected official. For purposes of this chapter, a principal executive officer
of a public agency includes (i) the chief executive officer of the agency or (ii) a senior
executive officer having responsibility for the overall operations of a principal geographic
unit of the agency.
2. Reports and other information. All reports required by this general permit, including SWPPPs,
and other information requested by the board or the department shall be signed by a person
described in Part III K 1 or by a duly authorized representative of that person. A person is a
duly authorized representative only if:
a. The authorization is made in writing by a person described in Part III K 1;
b. The authorization specifies either an individual or a position having responsibility for the
overall operation of the regulated facility or activity such as the position of plant manager,
operator of a well or a well field, superintendent, position of equivalent responsibility, or
an individual or position having overall responsibility for environmental matters for the
operator. (A duly authorized representative may thus be either a named individual or any
individual occupying a named position); and
c. The signed and dated written authorization is included in the SWPPP. A copy shall be
provided to the department and VSMP authority, if requested.
3. Changes to authorization. If an authorization under Part III K 2 is no longer accurate because
a different individual or position has responsibility for the overall operation of the construction
activity, a new authorization satisfying the requirements of Part III K 2 shall be submitted to
the VSMP authority as the administering entity for the board prior to or together with any
reports or information to be signed by an authorized representative.
4. Certification. Any person signing a document under Part III K 1 or 2 shall make the following
certification:
"I certify under penalty of law that I have read and understand this document and that this
document and all attachments were prepared in accordance with a system designed to assure
that qualified personnel properly gathered and evaluated the information submitted. Based on
my inquiry of the person or persons who manage the system, or those persons directly
responsible for gathering the information, the information submitted is, to the best of my
knowledge and belief, true, accurate, and complete. I am aware that there are significant
Page 23 of 26
penalties for submitting false information, including the possibility of fine and imprisonment for
knowing violations."
L. Duty to comply. The operator shall comply with all conditions of this general permit. Any state
permit noncompliance constitutes a violation of the Virginia Stormwater Management Act and the
Clean Water Act, except that noncompliance with certain provisions of this general permit may
constitute a violation of the Virginia Stormwater Management Act but not the Clean Water Act.
Permit noncompliance is grounds for enforcement action; for state permit coverage, termination,
revocation and reissuance, or modification; or denial of a state permit renewal application.
The operator shall comply with effluent standards or prohibitions established under § 307(a)
of the Clean Water Act for toxic pollutants within the time provided in the regulations that establish
these standards or prohibitions or standards for sewage sludge use or disposal, even if this
general permit has not yet been modified to incorporate the requirement.
M. Duty to reapply. If the operator wishes to continue an activity regulated by this general permit
after the expiration date of this general permit, the operator shall submit a new registration
statement at least 60 days before the expiration date of the existing general permit, unless
permission for a later date has been granted by the board. The board shall not grant permission
for registration statements to be submitted later than the expiration date of the existing general
permit.
N. Effect of a state permit. This general permit does not convey any property rights in either real
or personal property or any exclusive privileges, nor does it authorize any injury to private property
or invasion of personal rights, or any infringement of federal, state or local law or regulations.
O. State law. Nothing in this general permit shall be construed to preclude the institution of any
legal action under, or relieve the operator from any responsibilities, liabilities, or penalties
established pursuant to any other state law or regulation or under authority preserved by § 510 of
the Clean Water Act. Except as provided in general permit conditions on "bypassing" (Part III U)
and "upset' (Part III V), nothing in this general permit shall be construed to relieve the operator
from civil and criminal penalties for noncompliance.
P. Oil and hazardous substance liability. Nothing in this general permit shall be construed to
preclude the institution of any legal action or relieve the operator from any responsibilities,
liabilities, or penalties to which the operator is or may be subject under §§ 62.1-44.34:14 through
62.1-44.34:23 of the State Water Control Law or § 311 of the Clean Water Act.
Q. Proper operation and maintenance. The operator shall at all times properly operate and
maintain all facilities and systems of treatment and control (and related appurtenances), which
are installed or used by the operator to achieve compliance with the conditions of this general
permit. Proper operation and maintenance also includes effective plant performance, adequate
funding, adequate staffing, and adequate laboratory and process controls, including appropriate
quality assurance procedures. This provision requires the operation of back-up or auxiliary
facilities or similar systems, which are installed by the operator only when the operation is
necessary to achieve compliance with the conditions of this general permit.
R. Disposal of solids or sludges. Solids, sludges or other pollutants removed in the course of
treatment or management of pollutants shall be disposed of in a manner so as to prevent any
pollutant from such materials from entering surface waters and in compliance with all applicable
state and federal laws and regulations.
Page 24 of 26
S. Duty to mitigate. The operator shall take all steps to minimize or prevent any discharge in
violation of this general permit that has a reasonable likelihood of adversely affecting human
health or the environment.
T. Need to halt or reduce activity not a defense. It shall not be a defense for an operator in an
enforcement action that it would have been necessary to halt or reduce the permitted activity in
order to maintain compliance with the conditions of this general permit.
U. Bypass.
1. 'Bypass," as defined in 9VAC25-870-10, means the intentional diversion of waste streams
from any portion of a treatment facility. The operator may allow any bypass to occur that does
not cause effluent limitations to be exceeded, but only if it also is for essential maintenance to
ensure efficient operation. These bypasses are not subject to the provisions of Part III U 2 and
3.
2. Notice.
a. Anticipated bypass. If the operator knows in advance of the need for a bypass, the
operator shall submit prior notice to the department, if possible at least 10 days before the
date of the bypass.
b. Unanticipated bypass. The operator shall submit notice of an unanticipated bypass as
required in Part III I.
3. Prohibition of bypass.
a. Except as provided in Part III U 1, bypass is prohibited, and the board or department may
take enforcement action against an operator for bypass unless:
(1) Bypass was unavoidable to prevent loss of life, personal injury, or severe property
damage. Severe property damage means substantial physical damage to property,
damage to the treatment facilities that causes them to become inoperable, or
substantial and permanent loss of natural resources that can reasonably be expected
to occur in the absence of a bypass. Severe property damage does not mean
economic loss caused by delays in production;
(2) There were no feasible alternatives to the bypass, such as the use of auxiliary
treatment facilities, retention of untreated wastes, or maintenance during normal
periods of equipment downtime. This condition is not satisfied if adequate back-up
equipment should have been installed in the exercise of reasonable engineering
judgment to prevent a bypass that occurred during normal periods of equipment
downtime or preventive maintenance; and
(3) The operator submitted notices as required under Part III U 2.
b. The department may approve an anticipated bypass, after considering its adverse effects,
if the department determines that it will meet the three conditions listed in Part III U 3 a.
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V. Upset.
1. An "upset," as defined in 9VAC25-870-10, means an exceptional incident in which there is
unintentional and temporary noncompliance with technology -based state permit effluent
limitations because of factors beyond the reasonable control of the operator. An upset does
not include noncompliance to the extent caused by operational error, improperly designed
treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or
careless or improper operation.
2. An upset constitutes an affirmative defense to an action brought for noncompliance with
technology -based state permit effluent limitations if the requirements of Part III V 4 are met.
A determination made during administrative review of claims that noncompliance was caused
by upset, and before an action for noncompliance, is not a final administrative action subject
to judicial review.
3. An upset does not include noncompliance to the extent caused by operational error,
improperly designed treatment facilities, inadequate treatment facilities, lack of preventative
maintenance, or careless or improper operation.
4. An operator who wishes to establish the affirmative defense of upset shall demonstrate,
through properly signed, contemporaneous operating logs or other relevant evidence that:
a. An upset occurred and that the operator can identify the cause of the upset;
b. The permitted facility was at the time being properly operated;
c. The operator submitted notice of the upset as required in Part III I; and
d. The operator complied with any remedial measures required under Part III S.
5. In any enforcement proceeding, the operator seeking to establish the occurrence of an upset
has the burden of proof.
W. Inspection and entry. The operator shall allow the department as the board's designee, the
VSMP authority, EPA, or an authorized representative of either entity (including an authorized
contractor), upon presentation of credentials and other documents as may be required by law to:
1. Enter upon the operator's premises where a regulated facility or activity is located or
conducted, or where records shall be kept under the conditions of this general permit;
2. Have access to and copy, at reasonable times, any records that shall be kept under the
conditions of this general permit;
3. Inspect and photograph at reasonable times any facilities, equipment (including monitoring
and control equipment), practices, or operations regulated or required under this general
permit; and
4. Sample or monitor at reasonable times, for the purposes of ensuring state permit compliance
or as otherwise authorized by the Clean Water Act or the Virginia Stormwater Management
Act, any substances or parameters at any location.
Page 26 of 26
For purposes of this section, the time for inspection shall be deemed reasonable during regular
business hours, and whenever the facility is discharging. Nothing contained herein shall make an
inspection unreasonable during an emergency.
X. State permit actions. State permit coverage may be modified, revoked and reissued, or
terminated for cause. The filing of a request by the operator for a state permit modification,
revocation and reissuance, or termination, or a notification of planned changes or anticipated
noncompliance does not stay any state permit condition.
Y. Transfer of state permit coverage.
1. State permits are not transferable to any person except after notice to the department. Except
as provided in Part III Y 2, a state permit may be transferred by the operator to a new operator
only if the state permit has been modified or revoked and reissued, or a minor modification
made, to identify the new operator and incorporate such other requirements as may be
necessary under the Virginia Stormwater Management Act and the Clean Water Act.
As an alternative to transfers under Part III Y 1, this state permit may be automatically
transferred to a new operator if:
a. The current operator notifies the department at least 30 days in advance of the proposed
transfer of the title to the facility or property;
b. The notice includes a written agreement between the existing and new operators
containing a specific date for transfer of state permit responsibility, coverage, and liability
between them; and
c. The department does not notify the existing operator and the proposed new operator of
its intent to modify or revoke and reissue the state permit. If this notice is not received, the
transfer is effective on the date specified in the agreement mentioned in Part III Y 2 b.
3. For ongoing construction activity involving a change of operator, the new operator shall accept
and maintain the existing SWPPP, or prepare and implement a new SWPPP prior to taking
over operations at the site.
Z. Severability. The provisions of this general permit are severable, and if any provision of this
general permit or the application of any provision of this state permit to any circumstance, is held
invalid, the application of such provision to other circumstances and the remainder of this general
permit shall not be affected thereby.
APPENDIX B
I1►RU:14IIs] ►Iall a901149
INSPECTION REPORT:
PROJECT NAME:
SWPPP CONTACT:
Inspector Name:
Time of Inspection:
Last Rain Event:
Rainfall Amount:
Summary
of Inspection (See back of this sheet for checklist):
•
Location of Prohibited Discharges:
•
E&S or Pollution Prevent Measures that require maintenance:
•
Failed Control Measures (E&S or Pollution Prevention):
•
Locations where the approved plans were not implemented properly:
•
Corrective Actions Required:
•
Outstanding Items if present from last inspection:
Inspector Signature
Operator Signature
Date
Date
"If this report does not identify any incidents of non-compliance, I certify that the construction activity is in compliance
with the SWPPP and Construction General Permit"
Inspections shall be completed at least once every four business days; or at least once every 5 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. Representative
inspections used by utility line installation, pipeline construction, or other similar linear construction activities shall
inspect all outfalls discharging to exceptional water.
INSPECTION REQUIREMENTS:
• Inspect proper installation, maintenance needs, and effectiveness of:
Perimeter controls (silt fence, tree protection, etc.)
Soil stockpiles and borrow areas
Completed earthen structures (dams, dikes, ditches, diversions, etc.)
Cut and fill slopes
Measures installed to control sediment discharge from stormwater (sediment basins, traps, or barriers, etc.)
Measures installed to convey concentrated runoff (channels, flumes, slope drain structures, storm inlets,
construction vehicle access routes, etc.)
• Areas at final grade or to remain dormant for more than 14 days:
Initiate stabilization activities
Complete stabilization activities within 7 days of stopping work
• Evidence that ESCP has not been properly implemented:
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;
Sediment laden or turbid flows of stormwater that have not been filtered or settled to remove sediments
prior to discharge;
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;
Sediment deposition on any property (including public and private streets) outside of the construction activity
covered by this general permit;
Required stabilization has not been initiated or completed on portions of the site;
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;
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
Land disturbance outside of the approved area to be disturbed
• Pollutant generating activities from Pollution Prevention Plan:
Proper implementation, maintenance, and effectiveness of the procedures and practices
• Describe discharges at time of inspection:
• Record land -disturbing activities outside approved ESCP:
0 Identify any pollutant generating activity or evidence of discharge not identified in the pollution prevention plan:
APPENDIX C
Ice] Cl 011 :1411Y/ EAT" I Is] ►110] all ►Vi
CORRECTIVE ACTION FORM:
SECTION A— INITIAL REPORT (CGP PART 5.4.1)
(Complete this section within 24 hours of identifying the condition that triggered corrective action)
Project Name:
NPDES ID No:
Today's Date:
Date Problem First Discovered:
Time Problem First Discovered:
Name and Contact:
What site conditions triggered the requirements to conduct corrective action:
❑ A stormwater control needs repair or replacement (beyond routine maintenance required under Part 2.1.4)
❑ A stormwater control necessary to comply with the requirements of this permit was never installed or installed incorrectly
❑ A discharge is causing an exceedance of applicable water quality standards
❑ A Part 1.3 prohibited discharge has occurred
❑ EPA requires correction action as a result of permit violations found during an EPA inspection carried out under Part 4.8
Provide a description of the problem:
Deadline for completing corrective action:
❑ Immediately take all reasonable steps to address the condition, including cleaning up any contaminated surfaces so the
material will not discharge in subsequent storm events
❑ Complete by close of the next business day when problem does not require a new or replacement control or significant
repair
❑ No later than 7 calendar days from the time of discovery for problems that require a new or replacement control or
significant repair
❑ Infeasible to complete the installation or repair within 7 calendar days.
Why is it infeasible and document schedule for installing control:
Date of corrective action completion:
SECTION B — CORRECTIVE ACTION COMPLETION (CGP PART 5.4.2)
(Complete this section no later than 24 hours after completing the corrective action)
Cause of Problem
Date Detected
How You Determined the Cause
1
2
Stormwater Control Modification
Needed to Correct Problem
Date of
Completion
How You Implemented the Modification
1
2
SECTION C—SIGNATURE AND CERTIFICATION (CGP PART 5.4.3)
CONTRACTOR OR SUBCONTRACTOR ON SITE
"I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in
accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information
submitted. Based on my inquiry of the person or person 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
have no personal knowledge that the information submitted is other than true, accurate, and complete. I am aware that there are
significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations."
Signature of Contractor or Subcontractor:
Printed Name and Affiliation:
Date:
"I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in
accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information
submitted. Based on my inquiry of the person or person 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
have no personal knowledge that the information submitted is other than true, accurate, and complete. I am aware that there are
significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations."
Signature of Operator or "Duly Authorized Representative":
Printed Name and Affiliation:
Date:
APPENDIX D
II0I4ItillI MOIa0:kv/a►kI Is] ►1folol4Y8):41►ViIUI1►[cs1181 ]
POLLUTION PREVENTION TOOLBOX MEETING:
PROJECT NAME:
PROJECT LOCATION:
DATE:
SWPPP CONTACT:
ATTENDEES:
MEETING NOTES:
APPENDIX E
GRADING AND STABILIZATION ACTIVITIES LOG:
PROJECT NAME:
SWPPP CONTACT:
DATE
DATE GRADING
DATE WHEN
GRADING
ACTIVITY
DESCRIPTION OF GRADING ACTIVITY
ACTIVITY CEASED
(TEMPORARYLY OR
STABILIZATION
MEASURES ARE
DESCRIPTION OF STABILIZATION MEASURES
AND LOCATION
INITIATED
PERMANENTLY)
INITIATED
SIGNATURE OF CONTRACTOR/SUBCONTRACTOR OR "DULY AUTHORIZED REPRESENTATIVE":
PRINTED NAME AND AFFLIATION: DATE:
SIGNATURE OF CONTRACTOR/SUBCONTRACTOR OR "DULY AUTHORIZED REPRESENTATIVE":
PRINTED NAME AND AFFLIATION: DATE:
DATE
DATE GRADING
DATE WHEN
GRADING
ACTIVITY
DESCRIPTION OF GRADING ACTIVITY
ACTIVITY CEASED
(TEMPORARYLY OR
STABILIZATION
MEASURES ARE
DESCRIPTION OF STABILIZATION MEASURES
AND LOCATION
INITIATED
PERMANENTLY)
INITIATED
SIGNATURE OF CONTRACTOR/SUBCONTRACTOR OR "DULY AUTHORIZED REPRESENTATIVE":
PRINTED NAME AND AFFLIATION: DATE:
SIGNATURE OF CONTRACTOR/SUBCONTRACTOR OR "DULY AUTHORIZED REPRESENTATIVE":
PRINTED NAME AND AFFLIATION: DATE:
DATE
DATE GRADING
DATE WHEN
GRADING
ACTIVITY
DESCRIPTION OF GRADING ACTIVITY
ACTIVITY CEASED
(TEMPORARYLY OR
STABILIZATION
MEASURES ARE
DESCRIPTION OF STABILIZATION MEASURES
AND LOCATION
INITIATED
PERMANENTLY)
INITIATED
SIGNATURE OF CONTRACTOR/SUBCONTRACTOR OR "DULY AUTHORIZED REPRESENTATIVE":
PRINTED NAME AND AFFLIATION: DATE:
SIGNATURE OF CONTRACTOR/SUBCONTRACTOR OR "DULY AUTHORIZED REPRESENTATIVE":
PRINTED NAME AND AFFLIATION: DATE:
APPENDIX F
I_1►Vila►113►ViIa►k91161cl
AMENDMENT LOG:
PROJECT NAME:
SWPPP CONTACT:
AMENDMENT
NO.
DESCRIPTION OF THE AMENDMENT
DATE OF
AMENDMENT
AMENDMENT PREPARED BY
[NAME(S) AND TITLE]
AMENDMENT
NO.
DESCRIPTION OF THE AMENDMENT
DATE OF
AMENDMENT
AMENDMENT PREPARED BY
[NAME(S) AND TITLE]