SW8970218_CURRENT PERMIT_20230814

STORMWATER DIVISION CODING SHEET
POST-CONSTRUCTION PERMITS
PERMIT NO. SW8 910 Z l ?
DOC TYPE ® CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE 20 ` *1 0 811
YYYYMMDD

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ti
ROY COOPER = �'
Governor
ELIZABETH S.BISER � �-
Secretary
DOUGLAS R ANSEL NORTH CAROLINA
tnteArn DireMr Environmental Quality
August 14", 2023
Attn: Dan J. Korman,Owner
7002 Wrightsville Ave.
Wilmington,NC 28403
Subject: Permit Renewal
Post-Construction Stormwater Management Permit No. SW8970218
Craft Hardware
New Hanover County
Dear Mr. Korman:
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 August 4th, 2023. The Division is hereby notifying you that permit SW8970218 has been
renewed, updated, and re-issued on August 14", 2023,as attached. As requested, a copy of the current operation
and maintenance agreement is also enclosed. 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 June 9',2030, 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 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 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 Logan Inman in the Wilmington Regional Office,
at(910) 796-7215 or [e-mail].
Sincerely,
Douglas R. Ansel, Interim Director
Division of Energy, Mineral and Land Resources
®Ez�'. 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
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State Stormwater Permit No. SW8 970218
Page 2 of 2
Enclosures: Attachment C—Permitting History
copy of the Renewal Application Documents
Copy of the current operation and maintenance agreement
DES/LWC \\\Stormwater\Permits&Projects\1997\970218 HD\2023 08 permit 970218
cc: Wilmington Regional Office Stormwater File
®���� North Carolina Department of Environmental Quality I Division of Energy.Mineral and Land Resources
tc! Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington.North Carolina 28405
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Post-Construction Stormwater Management
Permit No. SW8 970218
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
Dan Korman
Craft Hardware
7002 Wrightsville Ave.,Wilmington New Hanover, County
FOR THE
construction, operation and maintenance of 1 an underground infiltration trench(es) 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 June 911, 2030 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 1.6 on page 2 of this permit. The stormwater control has been designed to
handle the runoff from 47,404 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 5

Post-Construction Stormwater Management
Permit No. SW8 970218
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 infiltration trench and must be
maintained at design condition:
a. Drainage Area, acres: 1.54
Onsite, ft2: 65,340
Offsite, ft2: 0
b. Total Impervious Surfaces, ft2: 47,404
C. Design Storm, inches: 1
d. Trench Depth ft: 2
e. Perforated Pipe Diameter 8"
f. Bottom Elevation, FMSL: 23.68
9. Bypass Weir Elevation, FMSL: 6" overflow between DI- and DI-2
h. Permitted Storage Volume, ft3: 4,774
i. Type of Soil: N/A
j. Expected Infiltration Rate, in/hr: 6"
k. Seasonal High Water Table, FMSL: 21.5
I. Time to Draw Down, hours: 29
M. Receiving Stream/River Basin: UT Wrightsville Beach Rec. Area / Cape
Fear
n. Stream Index Number: 19-97-24
o. Classification of Water Body: "SB"
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 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 bypass structure, filter media, flow spreader, catch
basins, piping and vegetated filter.
g. A clear access path to the bypass 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.
Page 2 of 5

Post-Construction Stormwater Management
Permit No. SW8 970218
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.
7. 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.
8. Access to the stormwater facilities shall be maintained via appropriate easements at all times.
9. 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.
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.
Page 3 of 5

Post-Construction Stormwater Management
Permit No. SW8 970218
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:
i. A natural person who is deceased,
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.
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
projects 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.
f. 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 970218
Permit renewed, updated and reissued this the 1411 day of August 2023.
NORTH CAROLINNA/EQN�VIRONMENTAL MANAGEMENT COMMISSION
1 1'YI�L•,c Ufa=�-V'
' ,Douglas R. Ansel, Interim Director
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Permit Number SW8 970218
Page 5 of 5

Attachment C-Permitting History
Craft Hardware
Permit No.SWB 970218
Approval Permit Action RIMS Description of the Changes Modified Plan Sherds
Date Version
Original High Density Commercial Stormwater Project-construction,operation and maintenance of an
8/I5/1997 Approval I.0 underground infiltration trench system in compliance with the provisions of 15A NCAC 2H.1000.The CI-2
stormwater control has been designed to handle the runoff from 46,287 square feet of impervious area.
High Density Project-construction,operation and maintenance of I an underground infiltration trench(es)
6/9/2008 Renewal 2,0 in compliance with the provisions of ISA NCAC 2H.1000,The stormwater control has been designed to CI-2
handle the mooff from 47,404 square feet of impervious area.
8/14/2023 Renewal 3,0 Expiration date:June 9th,2030
Page 1 of 1

DEMLR USE ONLY
Date R cei ed Fee Paid Permit Number
3 J0` cJ 21
NC DEQ Division of Energy, Mineral and Land Resources RECEIVED
STATE STORMWATER: yUS C 2, 2323
PERMIT RENEWAL APPLICATION FORM
DEW-Stormwater Program
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
1. State Stormwater Permit Number: S W8 41 DZ 18 'R¢nitW pt.
2. Project name: 0,R141T HhAQYV"E
3. Project street address: Z 00 Z Win i4f (Lv- At/e
City: County: IJQ►N H*Iko ZIP : 2 403
4. What, if any, changes have been made to the project as permitted? Ado aL
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: hftps://deg.nc.gov/about/divisions/energy-
m i nera I-la nd-resources/en ergo-m i n e ra I-land-rules/stormwater-prop ram/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.nc.gov/abouVdivisions/energy-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: C&L41 A*MGrI e" 4•kU WAOW.�►L•
2. Signing Official's Name: !7A►J �J- 44091114M I
3. Signing Official's Title: Rt5 409A)r 1 OW a6V
4. Mailing Address: —100 Z Wngkts ICI"e, Ddor.
City: 0 IL,✓lA I Pq State: )U C ZIP : 63
5. Street Address: '700?- 1 VLt.I,e �
City: W>t I State: 0 d, ZIP : _ 3
6. Phone: 14 10 ) 2Sb 419zEmail: C r 6D M
EGERVE
111/S. `S s \\ n`>'re c AUG 0 4 2023
BY:
Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018

l
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/ORW). Only applications packages that
include all required items listed below will be accepted and reviewed.
J
Initial each item below to indicate that the required information is provided in the application package:
i ' v
1. A permit application processing fee of$505.00 payable to NCDEQ.
VLg2- 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:
0 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.
VSt 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. Design r 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.
_1P14. [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.
V47. [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/online services/search/by title/ Business Registration
ECEI E
AUG 0 4 2023
P
BY:
Stormwater Permit Renewal Application Form Page 2 of 3 May 11,2018

D. PERMITTEE'S CERTIFICATION
I, 770•N T V A-wt YEN 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: rwlla . Date: A LZZ'23
NOTARIZATION:
I, ILA4 L ]�?u}' on a Notary Public for the State of
NorN� Garol'Nr)a , County of Ntw 1-1c.nnvGr , do hereby certify
that llo, ',c-1 \ lLnr maar, personally appeared before me
this the - Arh day of 1�\u 20i3--, and acknowledge the due
exe�ptdriCgTp ping instrument. Witness my hand and official seal,
' ptAR y'•,
�VotOrSeal) z
PUBO
Norp,OfW
My commission expires 07 "awl. �02 8
EOVE
AUG 0 4 2023
Stormwater Permit Renewal Application Form Page 3 of 3 May 11,2018

UNDERGROUND INFILTRATION TRENCH MAINTENANCE REQUIREMENTS
Project Name: Craft Hardware
Responsible Party: Dan Korman
(Please Type or print clearly)
Address: 1946 Eastwood Rd. , Wilmington NC 284M Phone No. gio/956-47R
1. The trenches will be constructed in accordance with the approved stormwater plans and
specifications, including traffic bearing piping, and compacted void ratio verification.
2. Inlet catch basins and piping will be inspected monthly or after every runoff producing
rainfall event, whichever comes first. The basins, grates, piping and bypass weirs will be
cleared of accumulated trash.
3. Swales and vegetated filters will be inspected monthly or after every runoff producing
rainfall event, whichever occurs first. Eroded areas will be repaired before the next storm
event.
4. The water level in the monitoring wells will be recorded once a month or after a 1" rainfall
event, whichever comes first. Chronic high water table elevations (within V of the bottom
of the system for a period of 3 months) must be reported to DWQ, 395-3900.
5. If the system is failing, as determined by DWQ, the system will be immediately repaired
or replaced to original design specifications. Repair may include the necessity of removing
existing pavement to reach the underlying trench. If the system cannot be repaired to
function, other stormwater control devices, as allowed by NCAC 211.1000, must be
designed, approved and constructed.
6. Annual testing/cleaning of the system will be performed by an approved method.
By my signature below, I acknowledge that I am responsible for performing the maintenance as
outlined above.
Signature: kl'--� Date: )
E C E I V E D U31VMl/ 8o iS
MAR 1 01997 D tl tl
Revised 2t25/97 PROd # U2f O

s. Observation well(s) are provided (case-by-case basis).
t. Vegetated filter is provided for overflow (50 feet for SA waters, 30 feet for other waters)
and detail is shown on plans.
u. A benchmark for checking sediment accumulation is provided.
IV. UNDERGROUND INFILTRATION TRENCH OPERATION AND MAINTENANCE AGREEMENT
1. After every runoff producing rainfall event and at least monthly inspect the bypass/overflow structure for
blockage and deterioration and the infiltration system for erosion, trash accumulation, grass cover, and general
condition.
2. Repair eroded areas immediately, re-seed as necessary to maintain adequate vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash and blockages as needed to maintain
system performance.
3. Remove accumulated sediment annually or when depth is reduced to 75% of the original design depth. Restore
depth to original design depth without over-excavating. Over-excavating may cause the required water table
separation to be reduced and may compromise the ability of the system to perform as designed.
4. The water level in any monitoring wells will be recorded after a 1 inch rainfall event and at least once a month.
Chronic high water table elevations (within 1 foot of the bottom of the system for a period of three months)
shall be reported to DWQ immediately.
5. If DWQ determines that the system is failing, the system will immediately be repaired or replaced to original
design specifications. If the system cannot be repaired to perform its design function, other stormwater control
devices as allowed by NCAC 2H .1000 must be designed, approved and constructed.
6. Remove accumulated sediment from the infiltration system annually or when depth in the unit is reduced to
75% of the original design depth. The system shall be restored to the original design depth without over-
excavating. Over-excavating may cause the required water table separation to be reduced and may
compromise the ability of the system to perform as designed. Removed sediment shall be disposed of in an
appropriate manner and shall not be handled in a manner that will adversely impact water quality (i.e.
stockpiling near a stormwater treatment device or stream, etc.).
A benchmark shall be established in the infiltration system. The benchmark will document the original
design depth so that accurate sediment accumulation readings can be taken. The measuring device used to
determine the depth at the benchmark shall be such that it will give an accurate depth reading and not
readily penetrate into accumulated sediments../ �j
When the depth at the benchmark reads YIS� t�IG—�U the mu afed(se�ent shall be removed
from the system.
Form SWU-107 Rev 3.99 Page 3 of 4