HomeMy WebLinkAboutSW8070341_CURRENT PERMIT_20211214STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 Q103`i l
DOC TYPE
[`] CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2021121�4
YYYYMMDD
ROY COOPER
Governor
ELiZABETH S BISER
Secretary
BRiAN WRENN
DGectar
December 14, 2021
NORTH CAROLINA
Envaoamentat Quakty
Jones Onslow Electric Membership Corporation
Attu Jeffery T Clark, CEO
259 Western Boulevard
Jacksonville, NC 28546
Subject: Permit Renewal
Post -Construction Stormwater Management Permit No SW8 070341
Jones-Onslow EMC Meadowview Electric Sub Station
Onslow County
Dear Mr Clark
Effective August 1, 2013 the Post -Construction Stormwater Management Program has been transferred from the
Division of Water Quality ("DWQ") to the Division of Energy, Mineral and Land Resources ("DEMLR") All
previous references to DWQ will remain in older permits issued prior to August 1, 2013 until they are modified
Please note that this permit will now reference DEMLR as the Division responsible for enforcement of the permit
On August 5, 2009, the Governor signed Session Law 2009-406 This law impacted any development approval
issued by the former Division of Water Quality under Article 21 of Chapter 143 of the General Statutes, which
was current and valid at any point between January 1, 2008, and December 31, 2010 The law extended the
effective period of any permit that was set to expire during this time frame to three (3) years from its current
expiration date On August 2, 2010, the Governor signed Session Law 2010-177, which granted an extra year for
a total of four (4) years extension
The Division of Energy, Mineral and Land Resources received a complete 8-year Permit Renewal Application for
the subject permit on December 1, 2021 The Division is hereby notifying you that permit SW8070341 has been
renewed, updated, and re -issued on December 14, 2021, as attached Please be aware that the renewal and re -
issuance of this stormwater permit does not imply that the site is currently in compliance
This permit shall be effective until December 30, 2029, which includes all available extensions, and does not
supersede any other agency permit that maybe required The project shall be subject to the conditions and
limitations as specified therein This permit does not impose new or increased stormwater control requirements, it
clarifies the rules and requirements of this program to provide you with a better understanding of your obligations
under this permit Failure to comply with these requirements will result in future compliance problems Please
note that this permit is not transferable except after notice to and approval by the Division
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request
an adjudicatory hearing by filing a written petition with the Office of Administrative Hearings (OAH) The
written petition must conform to Chapter 150B of the North Carolina General Statutes and must be filed with the
OAH within thirty (30) days of receipt of this permit You should contact the OAH with all questions regarding
the filing fee (if a filing fee is required) and/or the details of the filing process at 6714 Mail Service Center,
Raleigh, NC 27699-6714, or via telephone at 919431-3000, or visit their website at www NCOAH com Unless
such demands are made this permit shall be final and binding
If you have any questions concerning this permit, please contact Ashley Smith in the Wilmington Regional
Office, at (910) 796-7215 or ashleym smith@ncdenr gov
Sincerely,
Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
.rnn, ®� O�%/Z North Carolina Department of Environmental QualRy I Dmston of Energy Armeral and Land Resources
Wilnungton Regional Office 1127 Cardinal Drive Extension I Wilmington. North Carolina 28405
— / 9107%7215
State Stormwater Perintt No SW8 070341
Page 2 of 2
Enclosures Attachment C — Pertaining tLstory
Renewal Application Documents
DES/arcs %StormwaterTermits & Pro3mts\2007\070341 HD\2021 12 permit 070341
cc Betty Bullock, John L Pierce & Associates, P A, P O Box 1685, Jacksonville, NC 28541
Wilmington Regional Office Stotmwater File
DEQ��
YP��YolfaV®YOaf/�
North Carolna Department of Environmental Quality I Din m of Energy Mineral and Land Resources
Wilmington Regional office 1127 Cardinal Drive Extension I Wilmington North Carolina 28405
9107967215
Post -Construction Stormwater Management
Permit No SW8 070341
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
POST -CONSTRUCTION STORMWATER MANAGEMENT PERMIT
HIGH DENSITY COMMERCIAL DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as
amended, and other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Jones-Onslow EMC
Jones Onslow EMC-Meadowview Electric Sub -Station
Pony Farm Road, Jacksonville, Onslow County
FOR THE
construction, operation and maintenance of a wet detention pond in compliance with the provisions of
15A NCAC 2H 1000 (hereafter referred to as the "stormwater rules') and as outlined in the
application, approved stormwater management plans, supplement, calculations, operation and
maintenance agreement, recorded documents, specifications, and other supporting data (the
"approved plans and specifications") as attached and/or on file with and approved by the Division of
Energy. Mineral and Land Resources (the "Division" or "DEMLR") The project shall be constructed,
operated and maintained in accordance with these approved plans and specifications The approved
plans and specifications are incorporated by reference and are enforceable part of this permit
This permit shall be effective from the date of issuance until December 30, 2029 and shall be subject
to the following specified conditions and limitations The permit issued shall continue in force and
effect until the permittee files a request with the Division for a permit modification, transfer, renewal, or
rescission, however, these actions do not stay any condition The issuance of this permit does not
prohibit the Director from reopening and modifying the permit, revoking and reissuing the permit, or
terminating the permit for cause as allowed by the laws, rules, and regulations contained in Title 15A
NCAC 2H 1000 and NCGS 143-215 1 et al
I DESIGN STANDARDS
1 This permit is effective only with respect to the nature and volume of stormwater described in
the application and other supporting data
2 This stormwater system has been approved for the management of stormwater runoff as
described in Section 16 on page 2 of this permit The stormwater control has been designed to
handle the runoff from 46,418 square feet of impervious area
3 The tract will be limited to the amount of built -upon area indicated on page 2 of this permit, and
per approved plans
4 All stormwater collection and treatment systems must be located in either dedicated common
areas or recorded easements The final plats for the project will be recorded showing all such
required easements, in accordance with the approved plans
5 The runoff from all built -upon area within the permitted drainage area(s) of this project must be
Page 1 of 5
Post -Construction Stormwater Management
Permit No SW8 070341
directed into the permitted stormwater control system
The following design criteria have been provided in the wet detention pond and must be
maintained at design condition
a
Drainage Area, acres
1 995
Onsite, ftz
84,939
Offsite, ft2
None
b
Total Impervious Surfaces, ftz
46,416
c
Design Storm, inches
1
d
Average Pond Design Depth, feet
5
e
TSS removal efficiency
90%
f
Permanent Pool Elevation, FMSL
61 10
g
Permanent Pool Surface Area, ft2
3,400
In
Permitted Storage Volume, ft3
3,9261
1
Temporary Storage Elevation, FMSL
62 12
t
Controlling Orifice
0 75"0 pipe
k
Permitted Forebay Volume, ft3
1,300
1
Fountain Horsepower, HP
No Fountain Allowed
m
Receiving Stream/River Basin
UT to Blue Creek / White Oak
n
Stream Index Number
19-8
o
Classification of Water Body
"SC, NSW"
II SCHEDULE OF COMPLIANCE
1 The stormwater management system shall be constructed in its entirety, vegetated and
operational for its intended use prior to the construction of any built -upon surface
2 During construction, erosion shall be kept to a minimum and any eroded areas of the system
will be repaired immediately
3 The permittee shall at all time provide the operation and maintenance necessary to assure the
permitted stormwater system functions at the design condition The approved Operation and
Maintenance Plan must be followed in its entirety and maintenance must occur at the
scheduled intervals including, but not limited to
Semiannual scheduled inspections (every 6 months)
Sediment removal
Mowing and re -vegetation of slopes and the vegetated filter
Immediate repair of eroded areas
Maintenance of all slopes in accordance with approved plans and specifications
Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch
basins and piping
Access to the outlet structure must be available at all times
Records of maintenance activities must be kept and made available upon request to
authorized personnel of DEMLR The records will indicate the date, activity, name of person
performing the work and what actions were taken
Decorative spray fountains will not be allowed in the stormwater treatment system, as the
permanent pool volume is less than 30,000 cubic feet
The facilities shall be constructed, operated and maintained in accordance with the provisions
of this permit, the approved plans and specifications, and the supporting documents attached
to this permit and on file with the Division
Page 2 of 5
Post -Construction Stormwater Management
Permit No SW8 070341
7 Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to
operation of this permitted facility, a certification must be received from an appropriate
designer for the system installed certifying that the permitted facility has been installed in
accordance with this permit, the approved plans and specifications, and other supporting
documentation Any deviations from the approved plans and specifications must be noted on
the Certification A modification may be required for those deviations
8 If the stormwater system was used as an Erosion Control device, it must be restored to design
condition prior to operation as a stormwater treatment device, and prior to occupancy of the
facility
9 Access to the stormwater facilities for inspection and maintenance shall be maintained via
appropriate recorded easements at all times
10 The Director may notify the permittee when the permitted site does not meet one or more of
the minimum requirements of the permit Within the time frame specified in the notice, the
permittee shall submit a written time schedule to the Director for modifying the site to meet
minimum requirements The permittee shall provide copies of revised plans and certification in
writing to the Director that the changes have been made
11 No person or entity, including the permittee, shall alter any component shown in the approved
plans and specifications Prior to the construction of any modification to the approved plans,
the permittee shall submit to the Director, and shall have received approval for modified plans,
specifications, and calculations including, but not limited to, those listed below For changes to
the project or SCM that impact the certifications, a new or updated certfication(s), as
applicable, will be required and a copy must be submitted to the appropriate DEQ regional
office upon completion of the modification
a Any modification to the approved plans and specifications, regardless of size including
the SCM(s), BUA, details, etc
b Redesign or addition to the approved amount of BUA or to the drainage area
c Further development, subdivision, acquisition, lease or sale of any, all or part of the
project and/or property area as reported in the approved plans and specifications
d Altering, modifying, removing, relocating, redirecting, regrading, or resizing of any
component of the approved SCM(s), the stormwater collection system and/or
vegetative conveyance shown on the approved plan
e The construction of any allocated future BUA
f The construction of any permeable pavement, #57 stone area, public trails, or
landscaping material to be considered a permeable surface that were not included in
the approved plans and specifications
g Other modifications as determined by the Director
III GENERAL CONDITIONS
CORRECTIVE ACTIONS REQUIRED If the facilities fail to perform satisfactorily, the
permittee shall take immediate corrective actions This includes actions required by this
Division and the stormwater rules such as the construction of additional or replacement on -site
stormwater systems These additional or replacement measures shall receive a permit from
the Division prior to construction
PERMIT RENEWAL A permit renewal request must be submitted at least 180 days prior to
the expiration date of this permit The renewal request must include the appropriate
application, documentation and the processing fee as outlined in Title 15A NCAC
02H 1045(3)
CHANGES TO THE PROJECT NAME, PERMIT -FEE NAME OR CONTACT INFORMATION
The permittee shall submit a completed Permit Information Update Application Form to the
Division within 30 days to making any one of these changes
Page 3 of 5
Post -Construction Stormwater Management
Permit No SW8 070341
4 TRANSFER This permit is not transferable to any person or entity except after notice to and
approval by the Director Neither the sale of the protect and/or property, in whole or in part, nor
the conveyance of common area to a third party constitutes an approved transfer of the permit
TRANSFER REQUEST The transfer request must include the appropriate application,
documentation and the processing fee as outlined in 15A NCAC 02H 1045(2) This
request must be submitted within 90 days of the permit holder meeting one or more of
the following
i A natural person who is deceased,
n A partnership, limited liability corporation, corporation, or any other business
association that has been dissolved,
ui A person or entity who has been lawfully and finally divested of title to the
property on which the permitted activity is occurring or will occur through
foreclosure, bankruptcy, or other legal proceeding
IV A person or entity who has sold the property, in whole or in part, on which the
permitted activity is occurring or will occur
TRANSFER INSPECTION Prior to transfer of the permit, a file review and site
inspection will be conducted by Division personnel to ensure the permit conditions
have been met and that the project and the on -site stormwater system complies with
the permit conditions Records of maintenance activities performed to date may be
requested Protects not in compliance with the permit will not be transferred until all
permit and/or general statute conditions are met
COMPLIANCE The permittee is responsible for compliance with the terms and conditions of
this permit until the Division approves the transfer request
a APPROVED PLANS AND SPECIFICATIONS A copy of this permit, approved plans,
application, supplement, operation and maintenance agreement, all applicable
recorded documents, and specifications shall be maintained on file by the permittee at
all times
b DIVISION ACCESS The permittee grants Division Staff permission to enter the
property during normal business hours to inspect all components of the permitted
project
c ENFORCEMENT Any individual or entity found to be in noncompliance with the
provisions of a stormwater management permit or the requirements of the stormwater
rules is subject to enforcement procedures as set forth in NCGS 143 Article 21
d ANNUAL CERTIFICATION The permittee shall electronically submit to the Division an
annual certification completed by either the permittee or their designee confirming the
protects conformance with permit conditions
e OBTAINING COMPLIANCE The Director may notify the permittee when the permitted
site does not meet one or more of the minimum requirements of the permit Within the
time frame specified in the notice, the permittee shall submit a written time schedule to
the Director for modifying the site to meet minimum requirements The permittee shall
provide copies of modified plans and certification in writing to the Director that the
changes have been made
OTHER PERMITS The issuance of this permit does not preclude the permittee from
complying with and obtaining any other permits or approvals that are required for this
development to take place, as required by any statutes, rules, regulations, or
ordinances, which may be imposed by any other Local, State or Federal government
agency having jurisdiction Any activities undertaken at this site that cause a water
quality violation or undertaken prior to receipt of the necessary permits or approvals to
do so are considered violations of NCGS 143-215 1, and subject to enforcement
procedures pursuant to NCGS 143-215 6
Page 4 of 5
Post -Construction Stormwater Management
Permit No SW8 070341
Permit renewed, updated and reissued this the 14th day of December 2021
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
�Y. Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 5 of 5
Attachment C - Permitting History
Jones-Onslow EMC Meadowview Electric Substation
Permit No SW8070341
Approval
Date
Permit
Action
BfN4S
Version
Description of the Changes
6/27/2008
Original
Approval
10
12/14/2021
Renewal
20
Expires December 30, 2029
II ' - - '-- - UEMLK USE ONLY
' Date R cei ed
Fee Paid
Permit Number
f
5 (oG
703`
NC DEQ Division of Energy, Mineral and Land Resources
STATE STORMWATER:
PERMIT RENEWAL APPLICATION FORM
In accordance with 15A NCAC 2H 1045(3)the current permit holder shall renew their high density permit 180 days
pnor to its expiration Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781)
Section 60 (c) This application form is for permit renewals only
A PROJECT INFORMATION
1 State Stormwater Permit Number SW8 070341
2 Project name Jones-Onslow EMC Meadowview Electric Sub Station
3 Project street address Pony Farm Road
City Jacksonville Township County Onslow
ZIP 28540
4 What, if any, changes have been made to the project as permitted?
If the project has changed from the onginal approved plans, please complete SWU-101 fora Ma/or
Modification or Minor Modification Application form available at https //deg nc gov/about/divisions/energv-
mi neral-land-resources/energy-mineral-land-rules/stormwater-program/post-construction
B PERMITTEE INFORMATION
If changes to the permittee or project name have been made, please complete either the Permit Update form
or the Permit Transfer form available at https //dea nc cov/about/divisions/enercy-mineral-land-
resources/energy-mineral-land-rules/stormwater-program/post-construction State Stormwater Permits do not
automatically transfer with the sale of the property
1 Current Permit Holder's Company Name/Organization Jones-Onslow EMC
2 Signing Official's Name Jeffery T Clark
3 Signing Official's Title Registered Agent/650
4 Mailing Address 259 Westem Boulevard
City Jacksonville State NC ZIP
28546
5 Street Address
City State ZIP
6 Phone (910) 353-1940 Email ioemcCc ioemc com
DEC 01 2021
BY_
Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018
C SUBMITTAL REQUIREMENTS
Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR
Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HQW/0RA9 Only applications packages that
include all required Items listed below will be accepted and reviewed
Initial each item below to indicate that the required information is provided in the application package
DKN 1 A permit application processing fee of $505 00 payable to NCDEQ
DKN 2 One original signed hard copy and one electronic copy of this completed form The signing official
named on this application to represent the current permittee must meet one of the following
a Corporation — a principle executive officer of at least the level of vice-president,
b Limited Liability Company (LLC) — a manager or company official as those terms are defined
in G S 57D "North Carolina Limited Liability Company Act,"
c Public Entity — a principal executive officer, ranking official, or other duly authorized employee,
d Partnership or limited partnership — the general partner,
e Sole proprietor, or
f Letter of authorization signed by one of the signatories noted in a — e above authorizing the
signature of another entity
N/A 3 One hard copy and one electronic copy of recorded documents required by the original permit that have
not yet been received by DEMLR, including deed restrictions, protective covenants,
condominium/planned community declaration and easements If the project has been built, include
documentation that the maximum BUA per lot or maximum total BUA has not been exceeded If
the project has not been built, include a signed agreement that the final recorded deed restrictions
and protective covenants will be submitted at a later date
DKN 4 O&M Agreements, Please select one
® I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to
keep this on file with the permit, or
❑ I do not have a copy of the current recorded O&M Agreement for all SCMs and am
requesting a copy be sent to me I agree to keep this on file with the permit
DKN 5 Designer Certifications, Please select one
® A copy of the certification(s) confirming that the project was built in accordance with the
approved plans have been previously provided to the Division, or
❑ A copy of the certification(s) confirming that the project was built in accordance with the
approved plans are enclosed, or
❑ The project has not yet been built
N/A 6 [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a
signed, sealed, and dated letter from a licensed professional stating that the SCMs have been
inspected, and that they have been built and maintained in accordance with the permit
DKN 7 [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC) Provide
one hard copy and one electronic copy of documentation from the NC Secretary of State, or other
official documentation, which supports the titles and positions held by the persons listed in Section
C 2 per 15A NCAC 2H 1043(3)(b)
htts //www sosnc ov/online services/search/by title/ Business Registration
DECO 202,
BY_
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018
b PERMITTEE'S CERTIFICATION
I, ✓ GGY / / the person legally responsible for the permit, certify that I have
a copy of the Permit and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am
responsible for the performance of the maintenance procedures, and the site has been and will be maintained
according to the O&M Agreement and approved plans I agree to notify DEMLR of any problems with the SCMs
or built -upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the
project, SCMs, or ownership All information provided on this permit renewal application is, to the best of my
knowledge, correct and complete
Signature �"� '� Date 1,% Zy Zl
NOT�A�RRATION ( /
(✓2e"(c� �/L�i a Notary Public for the State of
_ County of �'>�IDCJ do hereby certify
that J e R- / G�< personally appeared before me
this the u�y day of N&AJL? .L 20 / , and acknowledge the due
execution of the forgoing instrument Witness my hand and official seal,
(Notary Seal)
Notary Signature
My commission expires G+�D
ON ,
'%�jlz17
DEC 01 2021 jl
By_
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018
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Permit No
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details
I. PROJECT INFORMATION
Project Name Jones Onslow EMC-Meadowview Electnc Sub -Station
Contact Person David Newsom, PE, Crystal CoastEngmeenng,PA Phone Number (910 ) 325-0006
For projects with multiple basins, specify which basin this worksheet applies to 1 and only
elevations
Basin Bottom Elevation 56 10 ft (floor of the basin)
Permanent Pool Elevation 61 10 ft (elevation of the orifice)
Temporary Pool Elevation 62 12 ft (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Ared 3,400 sq ft
Drainage Area 195 ac
Impervious Area
volumes
107 ac
(water surface area at the orifice elevation)
(on -sue and off -site drainage to the basin)
(on -sue and off -site drainage to the basin)
Permanent Pool Volume
6,264
cu ft
(combined volume of main basin andforebay)
Temporary Pool Volume
3,926
cu It
(volume detained above the permanent pool)
Forebay Volume
1,300
cu ft
(approximately 20% of total volume)
Other parameters
SAIDA t
3 96
(surface area to drainage area ratio from DWQ table)
Diameter of Orifice
075
in
(2 to 5 day temporary pool draw -down required)
Design Rainfall
1"
in
Design TSS Removal 2
90
%
(minimum 85% required)
Fonn SWU-102 Rev 399 Page I of
Footnotes
I When usmg the Division SAIDA tables, the correu SAIDA iatio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth Linear interpolation should be employed to determine the correct value for non-
standard table entries
2 In the 20 coastal counties the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal
II REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N C Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section 15 A NCAC 2H 1008
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached if the applicant has designated an agent in the Stonnwater Management Permit
Application Form, the agent may initial below If a requirement has not been met, attach justification
Applicants
a The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet)
b The forebay volume is approximately equal to 20% of the basin volume
c The temporary pool controls runoff from the design storm event
d The temporary pool draws down in 2 to 5 days
If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow
calculations)
f The basin length to width ratio is greater than 3 1
g The basin side slopes above the permanent pool are no steeper than 3 1
h A submerged and vegetated perimeter shelf with a slope of 6 1 or less (show detail)
I Vegetative cover above the permanent pool elevation is specified
j A trash rack or similar device is provided for both the overflow and orifice
k A recorded drainage easement is provided for each basin including access to nearest right-
of-way
1 If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin
_4D�aL in A mechanism is specified which will dram the basin for maintenance or an emergency
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided
This system (check one) 0 does es not incorporate a vegetated filter at the outlet.
This system (check one) 0 does fl_\does not incorporate pretreatment other than a forebay
Form S W U-102 Rev 3 99 Page 2 of 4
Maintenance activities shall be performed as follows
After every significant runoff producing rainfall event and at least monthly
a Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition
b Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed
Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed
3 Inspect and repair the collection system (i a catch basins, piping, swales, riprap, etc ) quarterly to maintain
proper functioning
4 Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below) Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i e
stockpiling near a wet detention basin or stream, etc )
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments
When the permanent pool depth reads 375 feet in the main pond, the sediment shall be removed
When the permanent pool depth reads 375 feet in the forebay, the sediment shall be removed
BASIN DIAGRAM
(fill in the blanks)
Permanent Pool Elevation 61 10
Sediment Removal El 5735 75
— — — — — — Sediment Removal Elevation 57 35 75%
Bottum Elevation 5610 25%— — — — — — — — — — — — — — — — — — — — — — — — ----
Bottom Elevation 56 10 25% /
FOREBAY
MAIN POND
Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface These
plants shall be encouraged to grow along the vegetated shelf and forebay berm
If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency dram shall be minimized to the maximum extent practical
Form SWU-102 Rev 3 99 Page 3 of 4
4
7 All components of the wet detention basin system shall be maintained in good working order
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above I agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party
Print name Mr Hugh Batts
Title President
Address 259 Western Blvd, Jacksonville, NC 28546
Phon
Sign;
Date
Note The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president
Norma W. Bo,en , a Notary Public for the State of North Ccvto2ena
County of Onstow do hereby certify that Hugh Batts
personally appeared before me this 12 day of June 2007 and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements Witness my hand and official seal,
.gip iA W. e
1
NOTARY
PUBLIC
W
My commission expires 3126109
Form S WU-102 Rev 3 99 Page 4 of 4
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State Stormwater Management Systems
Permit No SW8 070341
Jones Onslow EMC-Meadowview Electric Sub -Station
Stormwater Permit No SW8 070341
Onslow County `
Designer's Certification
as a duly registered �) in the,,
State of Nortb Carohna,,hpvmg been,algthQnzed to observe (per io ically� full
Um2) thA`"c`onstrlLction of the projectx-
for�().U�LQ',f/ (Project Owner) hereby state that, to the,,*.
best of my abilities, due care and diligence was used,in the -observation of the project „_
coh'struction'SIUA tl;if the construction was pbserved:to p6,§udt.within �vbstantial '
compliance and intent of the approved plans and`specif cations
The checklist of items on page 2 of this form is included in the Certification
Noted deviations from
�+approved
� plans and specifications
Signature _ . y
Registration Number
_0D
SEAL,,,
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State Stormwater Management Systems
Permit No SW8 070341
Certification Requirements
1 The drainage area to the system contains approximately the permitted
acreage
2 The drainage area to the system contains no more than the permitted
amount of built -upon area
7dZ4&e� All the bullt=upon area-associzted with the protect i graded"suc�i that the
i
runoff drains to the sy to �11/ '6 W -JGrWe %"N
A� not yra� /
�4 — All roof drains are locate such that the runoff is directed into the system
The outlet_st?uctu're elevations are per the approved plan Y±
6 The outlet structure is located per the approved plans
7Trash rack is providpQ
��1iedp(n the outlet structure ':..� -" ' _, ',`t; •.
8 All slopes are gmsssed with permanent vegetation * L VVAV /sv"
a&=Pd2;1 a mUc cyetD
Vegetated slopes are no steeper than 3 1
10 The inlets are located per the approved plans and do not cause short-
circuiting of the system
pa�/i1 The permitt d amounts oqf surf e area.and/or.volgme have been
provided a" %pi�'!�►'! •
/YZI2 Required drawdown devices are correctly sized and located per the
approved plans
/ 13 All required design depths are provided
721&14 All required parts Q{ thg�r yd yjAem are ped, such a a vegetated shelf,
and a forebay 5/7�.i7` SFOry GWv7gI/d
J7 Ae required system dim sior}� are p Vided•per t'e approved plans T
/ i/►v Gf/Uy /h dG P �✓ CD'h9/ 10�7 W oroy, `O� ' / / ZGG 1p f.
/ ,A6 All components of the stormwater BMP are located in either?eco ed
common areas, or recorded easements
cc NCDENR-DWQ Regional Office
OnsIdw,County Building Inspections
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