HomeMy WebLinkAboutSW8070546_CURRENT PERMIT_20220801STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 0-105q- p
DOC TYPE
CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
2022 08 01
YYYYMMDD
ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
BRIAN WRENN
Dtrector
August 1, 2022
C.M. Mitchell Construction Company, Inc.
Attn: Charles M. Mitchell, President
P.O. Box 409
Sneads Ferry, NC 28460
NORTH CAROLINA
Enrtron rental Quality
Subject: Permit Renewal
Post -Construction Stormwater Management Permit No. SW8 070546
C.M. Mitchell Construction Office Building
Onslow County
Dear Mr. Mitchell:
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.'rhis 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 hand Resources received a complete 8-year Permit Renewal Application for
the subject permit on July 28, 2022. The Division is hereby notifying you that permit SW8070546 has been
renewed, updated, and re -issued on August I, 2022, 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 November 5, 2029, 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.NCOAE.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@nedenr.gov.
Sincerely,, � ((�
Brian Wrenn, Director
Division of Energy, Mineral and Land Resources
rDNn North Carolina Department of Environmental Quality I Division of Energy, Mineral and land Resources
—rQ/JJtt Wilmington Regional Office 1127 Cardinal Drive Extenslon I Wilmington, North Carolina 29405
910.796.7215
State Stormwater Permit No. SW8 070546
Page 2 of 2
Enclosures: Attachment A — Designer's Certification Form
Attachment C — Permitting History
Renewal Application Documents
Copy of the current operation and maintenance agreement
DES/ams: %StormwaterTermits & Projects\2007\070546 HD\2022 08 permit 070546
cc: Wilmington Regional Office Stormwater File
DE Q�� North Carotin Department of Environmental Quality I Division of Energy, bfineral and Land Resources
_ Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington, North Carolina 28405
910.796.7215
Post -Construction Stormwater Management
Permit No. SW8 070546
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
C. M. Mitchell Construction Company, Inc.
C.M. Mitchell Construction Office Building
2256 Highway 172, Sneads Ferry, Onslow County
FOR THE
construction, operation and maintenance of 1 infiltration 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 November 5, 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.
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 1.7 of this permit.
3. The basin must be operated with a 30' vegetated filter.
4. All side slopes shall be vegetated and sloped at 3:1 (H:V) or flatter
5. The runoff from all proposed built -upon area must be directed into the proposed infiltration
basin.
6. The spillway elevation must be set at 41 in order to provide the minimum required storage
volume.
Page 1 of 7
Post -Construction Stormwater Management
Permit No. SW8 070546
The following design elements have been approved for this infiltration basin stormwater
facility, and must be provided in the system at all times.
a.
Drainage Area, acres:
1.78
Onsite, ft2:
77,537
Offsite, ft2:
0
b.
Total Impervious Surfaces, ft2:
55,780
Buildings, ft2:
11,326
Roads/Parking, ft2:
44,454
Other, ft2:
0
Offsite, ft2:
0
C.
Basin Depth, feet:
3.0
d.
Design Storm, inches:
1"
e.
Seasonal High Water Table, FMSL:
36.0
f.
Bottom Elevation, FMSL:
38.0
g
Permitted Surface Area @Bottom, ft2:
900
h
Permitted Storage Volume, ft3:
4,563
i.
Storage Elevation, FMSL:
41.0
j
Type of Soil:
Leon
k.
Expected Infiltration Rate, in/hr:
5
I.
Time to Draw Down, hours:
drawdown time
m.
Receiving Stream / River Basin:
Mill Creek / WOK
n.
Stream Index Number:
stream index #
o.
Classification of Water Body:
"SA HQW"
II. SCHEDULE OF COMPLIANCE
1. The permittee is responsible for verifying that all of the proposed built -upon area is directed
into the basin and that the total built -upon area does not exceed the permitted built -upon area.
2. 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.
3. 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
4. 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.
Page 2 of 7
Post -Construction Stormwater Management
Permit No. SW8 070546
5. During construction, erosion shall be kept to a minimum and any eroded areas of the system
will be repaired immediately. Infiltration systems should not be used as erosion control
devices, due to the potential clogging. 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.
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.
The permittee shall at all times provide the operation and maintenance necessary to assure
that all components of the permitted stormwater system function 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 side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and specifications.
f. Debris removal and unclogging of filter media, bypass structures, orifice, catch basins
and piping.
g. Access to all components of the system 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.
9. 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.
10. Built upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick,
stone, slate, coquina and parking areas, but does not include raised, open wood decking, or
the water surface of swimming pools.
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).
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.
Page 3 of 7
Post -Construction Stormwater Management
Permit No. SW8 070546
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:
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.
COMPLIANCE. The permittee is responsible for compliance with the terms and conditions of
this permit until the Division approves the transfer request.
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.
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.
Page 4 of 7
Post -Construction Stormwater Management
Permit No. SW8 070546
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,
Permit renewed, updated and reissued this the 1 st day of August 2022.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
�&4� yirec Sian Wrenn, r
Division of Energy, Mineral and Land Resources
By Authority of the Environmental Management Commission
Page 5 of 7
Post -Construction Stormwater Management
Permit No. SW8 070546
C.M. Mitchell Construction Office Building
Stormwater Permit No. SW8 070546
Onslow County
Attachment A
Designer's Certification
Page 1 of 2
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 are a part of this Certification.
Noted deviations from approved plans and specifications:
Signature
Registration Number
Date
SEAL
Page 6 of 7
Certification Requirements:
Post -Construction Stormwater Management
Permit No. SW8 070546
Page 2 of 2
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 outleUbypass 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, a forebay, and
the vegetated filter.
15. The required dimensions of the system are provided, per the approved plan.
cc: NCDEQ-DEMLR Wilmington Regional Office
Onslow County Building Inspections
Page 7 of 7
Attachment C - Permitting History
C. M. Mitchell Construction Office Building
Permit No. SW8 070546
Approval
Date
Permit
Action
BIMS
Version
Description of the Changes
11/5/2007
Original
Approval
10
11/21/2011
Renewal
2.0
8/l/2022
Renewal
3.0
Expires November 5, 2029
DEMLR USE ONLY
Date R eive
Fee Paid
Permit Number
s
r 50D-
sws- 0705 6
NC DEQ Division of Energy, Mineral and Land Resources
STATE STORMWATER:
PERMIT RENEWAL APPLICATION FORM
/n 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: SW8 070546
2. Project name: C. M. Mitchell Construction Office Build
3. Project street address: 2256 Highway 172
City: Sneads Ferry County: Onslow Zip: 28460
4. What, if any, changes have been made to the project as permitted? None
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. nc.gov/about/d ivisions/energ y-
mineral-land-resou rces/ene rqv-mineral-la nd-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://deg.nc.gov/abouUdivisions/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. M. Mitchell Construction Co. Inc.
2. Signing Official's Name: Charles M. Mitchell
3. Signing Official's Title: PresidenUOwner
4. Mailing Address: P.O. Box 409
City: Sneads Ferry State: NC Zip : 28460
5. Street Address: 2256 Highway 172
City: Sneads Ferry State: NC Zip : 28460
6. Phone: (910 ) 327-2907 Email: mattmitchell@cmmitchelico.com
[-i>.o fi 0 @ti —
JUL 2 6 2022
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/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:
Cmm 1. A permit application processing fee of $505.00 payable to NCDEQ.
Cmm 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.
on file 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
® 1 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.
on file 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.
on file 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.
X 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.sasnc.gov/online servicesisearch/bv title/ Business Registration
Stormwater Permit Renewal Application Form Page 2 of 3
JUL 2 8 2022
BY:
May 11, 2018
D. PERMITTEE'S CERTIFICATION
Charles M. Mitchell , 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: lcoJ ;D� MMdckg Date: July 25, 2022
NOTARIZATION:
I, Kathleen A. McLean a Notary Public for the State of
North Carolina County of Onslow , do hereby certify
that Charles M. Mitchell personally appeared before me
this the 25th day of July _'2022 , and acknowledge the due
execution of the forgoing instrument. Witness my hand and official seal,
10
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11
JUL 2 0 2022 V i
Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018
Permit No. 5(A) 8 U7US4-to
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
INFILTRATION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, an
infiltration basin supplement for each system, design calculations, soils report and plans and specifications
showing all stonnwater conveyances and system details.
1. PROJECT INFORMATION
Project Name :
Contact Person:
This worksheet applies to: Basin No.
(as identified on plans)
Phone Number: (9/o ) 328 -5333
in Drainage Area
(from Form SWU-10/)
H. DESIGN INFORMATION - Attach supporting calculations/documentation. The soils report must be
based upon an actual field investigation and soil borings. County soil maps are not an acceptable source
of soils information. All elevations shall be in feet mean sea level (frost).
Soils Report Summary
Soil Type
Infiltration Rate
SHWT Elevation
Basin Design Parameters
Design Storm
Design Vohlroe
Drawdown Time
Basin Dimensions
Basin Size
Basin Volume Provided
Basin Elevations
Bottom Elevation
Storage Elevation
Top Elevation
Form SWU-103 Rev 3.99
5 m/hr r cf/hr/sf (circle appropriate units)
N�
&cy.3G.ofmsl (Seasonal High Water Table elevation)
( inch (1.5 inch event for SA waters, I inch event for others)
4610 c.f.
I days
3 ft. X 3D ft = '9Do sq. ft. (bottom dimensions)
45&3 cs.
frost /
41 frost — /nuS>< 4( !U ob7<ai/ ¢S&3cF o/' sfr#--Oye
42.0 fmsl lrci/rrrrjZ, mil"
ll� �
Page I of 3
Ill. 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 that the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. Attach justification if a requirement has not been met.
Ap In an Initials
a Sy
/ b. Sy
—�'L&L c. Bo
44 d. Bo
0+9 e. Sy
_ f. Sy
II m
W� g. Dr
_ h. So
att
WFi i. Sy
are
J. Sy
( so
Wei k. Al
.c I. A
sed
in.. Bo
1 de
4 n. Ve
lei
q�� o. Flo
w4t p. A
I vr' q. Ru
W6 r. Sy
ele
PC
s. Pla
res
sta
FormSWU-103 Rev3.99
stem is located 50 feet from class SA waters and 30 feet from other surface waters.
stem is located at least 100 feet from water supply wells.
ttom of system is at least 2 feet above the seasonal high water table.
ttom of the system is 3 feet above any bedrock or impervious soil horizon.
stem is not sited on or in fill material or DWQ approval has been obtained.
stem is located in a recorded drainage easement for the purposes of operation and
Page 2 of 3
IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT
l . After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion,
trash accumulation, vegetative cover, and general condition.
2. Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow
vegetated cover to maintain a maximum height of six inches, and remove trash as needed.
3. After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow
structures for blockage and deterioration. Remove any blockage and repair the structure to approved design
specifications.
4. Remove accumulated sediment from the pretreatment system and infiltration basin annually or when depth
in the pretreatment 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 pretreatment unit. 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.
When the design depth reads U, 55 feet in the pretreatment unit, the sediment shall be
removed from both the pretreatment unit and the infiltration basin.
If the Division determines that the system is failing, the system will immediately be repaired 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.
1 acknowledge and agree by my signature below that I am responsible for the performance of the five
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. ��nn II
Print Name and Title: &O-Y- tI M. MiIrcLit, I I Uviner
Address: Z256 gwv l7 Z N/A,lwq Po, $oK 4v9 setd'Ads `4P,9\4 dJ C 2646,o
Phone: �o' 32 7 Z �jD 7 Date: 4/Z71v7
Note: The legally responsible parry should not be a homeowners association unless more than 50% of the lots have been sold and a
resident of subdivision has been named the president.
I, / 06 lit, Q V\ 9QQL , a Notary Public for the State of e r D i ft, County of
l JVIS !i 0 W 1 do hereby certify that eti� it S M . r�, kCy1G it personally appeared before me this
day of 8Py i ` DD , and acknowledge the due execulio of the for Cinkii�nffiiltmtio a
ffimaintenance requirements.
Witness my hand and official seal, �si4/3� fp
F' vEIGHp'�.,
.� ,' 10O � �
` .qC My commission expires _(1,�_[ 0
�pTAq) '
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