SW8940120_HISTORICAL FILE_19950731 (2)

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
(4R5-0331
YYYYMMDD

State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson
Jonathan B. Howes, Secretary Regional Manager
July 31, 1995
Mr. Jerry Porter
Jerry Porter Lincoln, Mercury, Isuzu
5501 Market Street
Wilmington, North Carolina 28405
Subject: CERTIFICATION OF COMPLIANCE
with Stormwater Regulations
Stormwater Project No. SW8 940120 Revised
Jerry Porter Lincoln, Mercury, Isuzu
New Hanover County
Dear Mr. Porter:
This Certification is pursuant to the revised application for Jerry Porter Lincoln, Mercury, Isuzu
received on July 17, 1995. Based on our review of the project plans and specifications, we have
determined that the Jerry Porter Lincoln, Mercury, Isuzu stormwater control system complies with the
Stormwater Regulations set forth in Title 15A NCAC 2H.1003(i). The runoff from 79,422 square feet
of impervious area will be treated in a detention pond sized to achieve 90 % reduction in Total Suspended
Solids.
Any modification of the plans submitted to and approved by this Office or further development
of this site regardless of the fact that the modification may be less than 1 acre, will require an additional
Stormwater Submittal/Modification and approval prior to initiation of construction. Modifications include
but are not limited to; project name changes, transfer of ownership, redesign of built -upon surfaces,
addition of built -upon surfaces, redesign or further subdivision of the project area.
This Certification shall be effective from the date of issuance until rescinded. The project shall
be constructed and maintained in accordance with the plans and specifications approved by the
Wilmington Regional Office. This Certification supersedes the one issued to you on April 21, 1994. The
developer is responsible for obtaining any and all permits and approvals necessary for the development
of this project. This could include the Division of Coastal Management under CAMA requirements, the
Division of Environmental Management under Wetland 401 Water Quality Certification and/or a Dredge
and Fill Permit and/or a Sewer Extension/Collection Permit, U.S. Army Corps of Engineers 404 Wetland
Permit, NPDES Stormwater Permit if disturbing five acres or more, local County or Town Agency
permits under their local ordinances, or others that may be required.
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

r•
Mr. Porter
July 31, 1995
Stormwater Project No. SW8 940120 Revised
A professional engineer must certify that the revised stormwater system has been installed in
accordance with the approved plans and specifications upon completion of construction. The attached
certification should be received by this Office within 30 days of completion of construction.
3900.
If you have any questions concerning this matter, please call Ms. Linda Lewis or me at (910) 395-
Sincerely,
Dave Adkins
Water Quality Supervisor
DA/ar1: S:\WQS\STORMWAT\CERTIFIC\940120.FEB
cc: Mr. Phil Tripp, P.E.
Mr. Alan Golden, New Hanover County Inspections
Bradley Bennett
Beth Easley, New Hanover County
Linda Lewis
Wilmington -Regional -Office,
Central Files

DIVISION OF ENVIRONMENTAL MANAGEMENT
PROJECT DATA
Project Name:
Project Number:
Location:
Applicant:
Mailing Address:
Submittal Date:
Water Body Receiving Stormwater Runoff:
Classification of Water Body:
If Class SA, chloride sampling results:
Pond Depth:
Permanent Pool Elevation:
Total Impervious Surfaces Allowed:
Offsite Area entering Pond:
Green Area entering Pond:
Required Surface Area:
Provided Surface Area:
Required Storage Volume:
Provided Storage Volume:
Temporary Storage Elevation:
Controlling Orifice Type/Diameter:
Jerry Porter Lincoln, Mercury, Isuzu
SW8 940120
New Hanover County
Mr. Jerry Porter
Jerry Porter Lincoln, Mercury, Isuzu
5501 Market Street
Wilmington, North Carolina 28405
July 17, 1995
Smith Creek
"C Sw"
N/A
6.0 feet
36.0 MSL
79,422 square feet
0 square feet
19,774 square feet
4,567 square feet
5,200 square feet
6,657 cubic feet
7,877 cubic feet
37.35 MSL
1" pipe

1.
2.
3.
4.
5.
6.
WET DETENTION POND EVALUATION
Yes No The design storage is for the runoff from all impervious surfaces resulting from
1-inch of rainfall and is located above the permanent pool.
Yes No The permanent pool is designed for 90% total suspended solid (TSS) removal.
Therefore, no vegetative filter is required.
Yes No The runoff completely draws down to the permanent pool in 5 days, but not less
than 2 days.
Yes No The mean depth of the permanent pool is a minimum of 3 feet.
Yes No The inlet structure is designed to minimize turbulence and short circuiting.
Yes No An appropriate operation and maintenance plan has been provided for the
system.
7. Yes No THIS PROJECT MEETS THE STORMWATER CONTROL REQUIREMENTS
OF 15A NCAC 2H.1003 (g), (i), (k), and (1) (For Yes, 1 through 7 must all
be highlighted Yes.)
Brief Explanation: This detention pond is designed to remove 90% total suspended solids without the
aide of a vegetative filter.
DIVISION OF ENVIRONMENTAL MANAGEMENT SIGN -OFF
Wilmington Regional Office
31 SUL 75 A
Date Individual Evaluating Form/Plans
Date 4s% Regional Water Quality Supervisor
cc: Applicant/Bradley Bennett/arl/WiRO/CF

Jerry Porter Lincoln, Mercury, Isuzu
Stormwater Project No. SW8 940120 Revised
Engineer's Certification
I, , as a duly registered Professional Engineer 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.
Signature
Registration Number
Date

JIJI 7 7 1gQ;h
............... ..:,
PHmup G. TRipp, P.E.
211 North Fifth Avenue • Wilmington, North Carolina 28401
910/763.8124 • Fax [phone]
NCDEHNR July 14, 1995
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Jerry Porter Stormwater Revision
D.E.M. Certification No. SW8 940120
Wilmington, NC
PGT No. 9556
Dear Linda:
As per your May 4, 1995 correspondence we have revised the
stormwater system for the above reference site. Enclosed please
find two sets of plans and two sets of sealed calculations for your
review and approval.
Please contact me with any questions or comments. Thank you.
S y/ '
Phill G. Tripp, E.
cc: Jerry Porter
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