HomeMy WebLinkAboutSW8041130_CURRENT PERMIT_20220713 (2)STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 O4 11 3D
DOC TYPE
� CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
Z022 p7 I3
YYYYMMDD
ROY COOPER
coventor
ELIZABETH S. BISER
Secretary
BRIAN WRENN
Director
July 13, 2022
Bailey & Southstar, LLC
Attn: Scott C. Bortz, Manager
101 S. Kings Drive, Suite 200
Charlotte, NC 28204
NORTH CAROLINA
Environmental Quality
Subject: Permit Renewal
Post -Construction Stormwater Management Permit No. SW8 041130
Walgreen's Drugstore- Jacksonville, NC
Onslow County
Dear Mr. Bortz:
Lffective 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 I, 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 July 8, 2022. The Division is hereby notifying you that permit SW8041130 has been
renewed, updated, and re -issued on July 13, 2022, 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 August 19, 2027, which includes all available extensions, and does not
supersede any other agency permit that may be required. The project shall be subject to the conditions and
limitations as specified therein. This permit does not impose new or increased sormwater 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 OAI-I 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 919-431-3000, 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,
,9r Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
�DKQ�� North Carolina Department of Environmental Quality I Division of Energy. Mineral and land Resources
Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington, North Carolina 28405
^^�� / 910.796,7215
State Stormwater Permit No. SWS O41130
Page 2 of 2
Enclosures: Attachment A — Designer's Certification Form
Attachment C — Permitting History
Renewal Application Documents
DES/ams: \\\Stormwater\Permits & Projects\2004\041130 HD\2022 07 permit 041130
cc: Wilmington Regional Office Stormwater File
D_EQ,� North Carolina Department of Environmental Quality I Division of Energy. Ma eral and Land Resources
` _' Wilmington Regional Office 1127 Cardinal Drive Extension I Wilntington, North Carolina 28405
r��'r*d�^�\ ' 910.796.7215
Post -Construction Stormwater Management
Permit No. SW8 041130
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
POST -CONSTRUCTION STORMWATER MANAGEMENT PERMIT
HIGH DENSITY 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
Bailey & Southstar, LLC
Walgreen's Drugstore - Jacksonville, NC
1600 Gum Branch Road, Jacksonville, Onslow County
FOR THE
construction, operation and maintenance of a dry detention basin 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 August 19, 2027 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
This permit is effective only with respect to the nature and volume of stormwater described in
the application and other supporting data. The previous modification involved the installation
of a redesigned, extended dry detention basin instead of the dry detention basin and sand filter
of the previous modification issued June 28, 2005.
2. This stormwater system has been approved for the management of stormwater runoff as
described in Section 1.6 on page 2 of this permit. The stormwater control has been designed to
handle the runoff from 62,748 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.
Page 1 of 7
Post -Construction Stormwater Management
Permit No. SW8 041130
5. The runoff from all built -upon area within the permitted drainage area of this project must be
directed into the permitted stormwater control system.
6. The following design criteria have been provided
in the dry detention basin and must be
maintained at design condition:
a. Drainage Area, acres:
1.483
Onsite, ft2:
64,589
Offsite, ft2:
None
b. Total Impervious Surfaces, ft2:
62,748
C. Design Storm, inches:
1
d. Bottom Elevation, FMSL:
33.0
e. Permitted Surface Area, ft2:
3,090
f. Permitted Storage Volume, ft3:
6,240
g. Storage Elevation, FMSL:
37.0
h. Controlling Orifice:
0.75"0 pipe
i. Additional BMP:
Grassed Swales
j. Receiving Stream/River Basin:
Mill Creek / White Oak
k. Stream Index Number:
19-9
I. Classification of Water Body:
"SC, NSW"
II. SCHEDULE OF COMPLIANCE
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 times 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:
a. Semiannual scheduled inspections (every 6 months).
b. Sediment removal.
C. Mowing and revegetation of slopes and the vegetated filter.
d. Immediate repair of eroded areas.
e. Maintenance of all slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch
basins and piping.
q. Access to the outlet structure must be available at all times.
4. 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.
5. 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.
6. 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.
Page 2 of 7
Post -Construction Stormwater Management
Permit No. SW8 041130
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 certification(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.
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 shall be maintained via appropriate 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.
III. GENERAL CONDITIONS
1. 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.
2. 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).
3. CHANGES TO THE PROJECT NAME, PERMITTEE 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.
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 project 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.
a. 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:
A natural person who is deceased;
Page 3 of 7
Post -Construction Stormwater Management
Permit No. SW8 041130
ii. A partnership, limited liability corporation, corporation, or any other business
association that has been dissolved;
iii. 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
V. The assignment of declarant rights to another individual or entity;
vi. The sale or conveyance of the common areas to a Homeowner's or Property
Owner's Association, subject to the requirements of NCGS 143-214.7(c2);
b. 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. Projects not in compliance with the permit will not be transferred until all
permit and/or general statute conditions are met.
5. 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.
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
projects conformance with permit conditions
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 7
Post -Construction Stormwater Management
Permit No. SW8 041130
Permit renewed, updated and reissued this the 13th day of July.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
4L�__ - 2��
Brian Wrenn, Di or
Division of Energy, Mineral and Lan esources
By Authority of the Environmental Management Commission
Page 5 of 7
Post -Construction Stormwater Management
Permit No. SW8 041130
Walgreen's Drugstore - Jacksonville, NC
Stormwater Permit No. SW8 041130
Onslow County
Attachment A
Designer's Certification
I, , as a duly registered in the State of
North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of
the project,
(Project)
for (Project Owner) hereby state that, to the best of my
abilities, due care and diligence was used in the observation of the project construction such that the
construction was observed to be built within substantial compliance and intent of the approved plans
and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
SEAL
Page 6 of 7
Post -Construction Stormwater Management
Permit No. SW8 041130
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.
3. All the built -upon area associated with the project is graded such that the runoff drains
to the system.
4. All roof drains are located such that the runoff is directed into the system.
5. The outlet/bypass structure elevations are per the approved plan.
6. The outlet structure is located per the approved plans.
7. Trash rack is provided on the outlet/bypass structure.
8. All slopes are grassed with permanent vegetation.
9. 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.
11. The permitted amounts of surface area and/or volume have been provided.
12. Required drawdown devices are correctly sized per the approved plans.
13. All required design depths are provided.
14. All required parts of the system are provided, such as a vegetated shelf, and a forebay.
15. The required system dimensions are provided per the approved plans.
cc: NCDEQ-DEMLR Wilmington Regional Office
Onslow County Building Inspections
Page 7 of 7
Attachment C - Permitting History
Wlagreen's Drugstore -Jacksonville, NC
Permit No. SW8 041130
Approval
Permit Action
RIMS
Description of the Changes
Date
Version
2/8/2005
Original
1.0
issued for four (4) dry detention basins
Approval
involves revised plans to replace three
6/28/2005
Modification
1.1
(3) dry detention basins with one (I)
sand filter
involves redevelopment of a vacant
site and the installation of a
8/19/2005
Modification
1.2
redesigned, extended dry detention
basin instead of the dry detention basin
and sand filter of the previous
modification issued June 28, 2005
7/13/2022
Renewal
2.0
lExpires August 19, 2027
13Ful H I ISF r 1Nl Y
Date eceived
Fee Paid
Permit Number
0-2
41--00.30
0
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
prior 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
State Stormwater Permit Number:
2. Project name: Wgt9«9 j5+ore—J4c_k3G ,v,lte, r(C
3. Project street address: tbcO Ciur aCA^ch t2ooc1
City: JQC.kgo(�ulltQ- County: Onslow ZIP: mossy O
4. What, if any, changes have been made to the project as permitted? #.Jo^e-
Sw8 Cb41t3V
If the project has changed from the original approved plans, please complete SWU-101 for a Major
Modification or Minor Modification Application form available at., https //deg ncgov/about/divisions/energv-
m i n e ra I -I a n d-resources/e n e rg v-m i n e ra I -I a n d-rules/sto r m wate r-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 //deg ncgov/about/divisions/energy-mineral-land-
Stormwater Permits do not
automatically transfer with the sale of the property.
1. Current Permit Holder's Company Name/Organization: a a A L So
2. Signing Official's Name: Scott C .aor�-i
3. Signing Official's Title: N or%oget
4. Mailing Address: lok Su•L, Su.v-e- 200
City: cynorlo 1-6e— State: 0 C- ZIP: -ZIBQO 4
5. Street Address: So rnQL- Cos, ciboJ2
City:
6. Phone: ) qo6-6%eo Email: SbocFa@ becoM
-t3fvhS Qt2 c vier^.
O k' 4V 600)?
Q-S pwoer-? 6 -
Tus� Si�t7e�-7c J
ZIP:
JUL 0 8 2022
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 Z USMP, Non -Coastal HQW/ORW). 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:
1. A permit application processing fee of $505.00 payable to NCDEQ.
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.
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.
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.
✓ 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.
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.
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).
https://www.sosnc.gov/on line services/search/by title/ Business Registration
CC tL o 6C @ .`, ►t.. I
JUL 0 B 20221� !I
BY: �1
Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018
D. PERMITTEE'S CERTIFICATION
1, Scolt C • , 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: 151/� U!^:r Date:.- Wlyj
NOTARIZATION:
I, tkn%\-o..)'. Snay�C104 , a Notary Public for the State of
tJor?`," CcLrch1%r,g , County of t-teC_k1Q.noJ cg , do hereby certify
that Scott C. _E�cC�-Z personally appeared before me
this the '3ot:t& day of 3unQ—
execution of the forgoing instrument. Witness my hand and official seal,
(Notary Seal)
Notary Signature:
My commission expires MY Commission Expires 5-30-2023
20-_j_Z , and acknowledge the due
SMA���i
NOTARY
`m PUBLIC
c'
RiG c0
JUL 0 8 2022
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018
NKT #03308
Permit No. SW 2 D413 D m ct
(To be provided by DR'Q)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
EXTENDED DRY DETENTION BASIN SUPPLEMENT
This form may be photocopied jar use as an original.
DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a dry detention basin supplement for each
basin, design calculations, plans and specification showing all basin and outlet structure details, and a
fully executed operation and maintenance agreement.
I. PROJECT INFORMATION (Please complete the following information):
Project Name: Wa1green's Drugstore — Jacksonville, NC
Contact Person: Phil Norris, P.E. Phone Number: 910-343-9653
For projects with multiple basins, specify which basin this worksheet applies
Design Storm: 1.1 (Please choose either the I yr, 24 hr storm, or the 1 "storm)
Drainage Area: 64,589 square feet Built -upon Area: 62, 023 square feet
Required Volume: 5,211 cubic feet SHWT elevation: 3 0. 0 FMSL
Basin Dimensions:
Bottom Elevation:
33.0
feet, MSL
Area: 4 8 ft long x 0. 6 2 5
It wide = 3 0
ft5
Storage Elevation:
g
37.0
feet MSL
208 148
Area: . long x
3
ft wide= 090ft5
Detention Volume Provided: 6, 240 cubic feet
Sediment Storage Provided: 1,029 cubic feet (Equivalent to 20% of the detention volume)
Drawdown Orifice: 3 / 4 (Please indicate size and type of orifice)
Additional BMP to achieve 85% TSS (check one):
0 Grassed Swale 0 Vegetated Filter 0 Other N/A
Permit No.S U/L6 64/ / 3aMop
(To be provided by DWQ)
11. 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, November, 1995) and
Administrative Section 15A NCAC 21-1.1008.
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 Stormwater Management
Penuit Application Form, the agent may initial below. If a requirement has not been met, attach
written justification.
N I A a. The basin captures the runoff from the I year, 24 hour storm and releases it over a period
of 48 hours
OR the basin captures the runoff from the I inch storm and allows it to draw down over a
period of 2-5 days.
The minimum flow length ratio is 3:1, L: W.
Basin sideslopes are no steeper than 3:1.
A small permanent pool has been provided at the outlet to reduce clogging.
Cleanout access has been provided, sufficient for heavy equipment.
A drain has been provided which will completely empty the basin for cleanout.
h. Sufficient volume has been provided for any local government peak flow requirements.
i. f-the basin was used during construction as a sediment basin or trap, it must be cleaned
out to design specifications prior to operation as a dry detention basin.
A vegetation plan has been prepared by a N.C. licensed professional. Consideration must
be given to the grasses specified due to the frequent inundation.
he basin must be stabilized within 14 days of construction.
design provides for the sediment storage in addition to the detention volume that is
equal to 20% of the detention volume.
m. Inle d outlet channels have been protected from scour during high flows from large
storms.
�In areas of easily erodible soils, an additional plunge pool at the inlet has been provided,
or riprap is used as an energy dissipator.
forebay to capture sediment is recommended to make cleanout easier.
re asin is located in uncompacted natural soils.
seasonal high water table is located at least I foot below the bottom of the extended
dry detention basin.
Lcr r. An additional BMP (such as a swale or vegetated filter) has been designed to operate in
conjunction with this dry detention basin to meet the required minimum 85% TSS
removal.
Permit No 5-alg e)
(To be provided by DfVQ)
Ill. EXTENDED DRY DETENTION OPERATION AND MAINTENANCE AGREEMENT
The extended dry detention system is defined as the dry detention basin, forebay, and the required
additional BMP.
This system (check one) 0 does �Noes not incorporate a vegetated filter.
This system (check one) 0 does does not incorporate non-integrated pretreatment.
Maintenance activities shall be performed as follows:
1. All grassed areas of the basin shall be mowed at least twice annually, more frequently as needed.
2. Debris must be removed from the basin, outlet and orifice whenever it accumulates or at least
twice annually.
3. Annually- inspect the basin after a rain event to ensure it is functioning properly.
4. Repair any erosion of the side slopes and around the inlets and outlet immediately.
5. Accumulated sediment shall removed if it has reduced the available volume to 75% of the
original depth.
6. The emergency spillway shall be kept in good working order.
7. Woody vegetation shall be removed from the banks.
8. Any areas of the system found to be deficient shall be repaired or replaced to design standards.
9. Written records of the inspections and maintenance activities sliall be kept on file.
I acknowledge and agree by my signature below that I am responsible for the performance of the above
maintenance procedures. I agree to notify DWQ of any problems with the system or changes in the name
of the project, responsible party, or address.
Print name:
P.O. Bpx 400
4
. Bailey
do hereby certify that
the �? 9_2t day of
of the forgoing dry deten
Title
sonville, NC
Member
28541-0400
(910) 346-8637
a Notary Public for the State of
)County of
ersonally appeared before me this
and acknowledge the due execution
requirements. Witness my hand and official seal,
'c `ylG
� r
NOTARY
PUBLIC
2
�1 COUt t