SW8960326_HISTORICAL FILE_19960529 (2)

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW8 V' 0 3 2ln
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
® HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
Iq°I\o 052G
YYYYMMDD

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management A410
James B. Hunt, Jr., Governor [D E F1
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
May 29, 1996
r.0
e::- r: Clifton Jacobs
j! ardinal'Mctors
f 310 Western Boulevard
Jacksonville, North Carolina 28540
Subject: Permit No. SW8 960326
Cardinal Motors Expansion
High Density Commercial Stormwater Project
Onslow County
Dear Mr. Jacobs:
The Wilmington Regional Office received the Stormwater Application for Cardinal Motors Expansion on March 25, 1996,
with final information on May 24, 1996. Staff review of the plans and specifications has determined that the project, as
proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding
Permit No. SW8 960326 dated May 29, 1996, to Cardinal Motors.
This permit shall be effective from the date of issuance until May 29, 2006, and shall be subject to the conditions and
limitations as specified therein. Please pay special attention to the requirements of Section II, No. 5, Section III, No.
4, and the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation
and maintenance of the stormwater management system will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an
ajudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be
in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the
Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this
permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please contact Linda Lewis, or me at
[phone].
Sincerely,
Dave Adkins
Water Quality Supervisor
PAH/arl: S:\WQS\STORMWAT\PERMIT\960326.MAY
cc: Fred Cone, P.E.
James Gurganus, Onslow County Inspections
Linda Lewis
Wilmington Regional Office
Central Files
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer

State Stormwater Management Systems
Permit No. SW8 960326
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
STATE 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
Cardinal Motors
Cardinal Motors Expansion
Onslow County
FOR THE
construction, operation and maintenance of an alternative design which includes 3 dry detention basins and
grassed swales which remove a total of 85 % TSS, in compliance with the provisions of 15A NCAC 2H .1000
(hereafter referred to as the "stormwater rules') and the approved stormwater management plans and
specifications and other supporting data as attached and on file with and approved by the Division of
Environmental Management and considered a part of this permit.
This pennit shall be effective from the date of issuance until May 29, 2006 and shall be subject to the following
specified conditions and limitations:
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 nmoff as described on
page 3 of this permit, the Project Data Sheet. The stormwater controls have been designed to handle
the nmoff from a total of 70,444 square feet of impervious area.
3. Approved plans and specifications for this project are incorporated by reference and are enforceable
parts of the permit.
2

State Stormwater Management Systems
Permit No. SW8 960326
DIVISION OF ENVIRONMENTAL MANAGEMENT
PROJECT DATA
Project Name:
Permit Number:
Location:
Applicant:
Mailing Address:
Application Date
Water Body Receiving Stonnwater Runoff:
Classification of Water Body:
If Class SA, chloride sampling results
Dry Pond Depth:
Permanent Pool Elevation:
Total Impervious Surfaces Allowed:
Basin A
Basin B
Sediment pit
Required Storage Volume:
Basin A
Basin B
Sediment pit
Provided Storage Volume:
Basin A
Basin B
Sediment pit
Controlling Orifice:
Basin A
Basin B
Sediment pit
Cardinal Motors Expansion
960326
Onslow County
Mr. Clifton Jacobs
Cardinal Motors
310 Western Boulevard
Jacksonville, North Carolina 28540
March 25, 1996
Scales Creek
"SC HQW NSW"
N/A
Basin A-2 feet; Basin B-1.7 feet; Sediment pit-2 feet.
Basin A-49 MSL; Basin B-48.5 MSL; Sediment pit-49 MSL
70,444 square feet
29,575 square feet
9,869 square feet
31,000 square feet
2,341 cubic feet
781 cubic feet
2,454 cubic feet
3,000 cubic feet
1,002 cubic feet
1,200 cubic feet
3/4" pipe
7/16" pipe
24" perforated riser
3

State Stormwater Management Systems
Permit No. SW8 960326
4. No property owner/developer shall fill in, alter, or pipe any vegetative practices (such as swales) shown
on the approved plans as part of the stormwater management system without submitting a revision to
the permit and receiving approval from the Division.
5. The tract will be limited to the amount of built -upon area indicated in the supporting calculations and
per approved plans.
6. The permittee is responsible for verifying that the proposed built -upon area does not exceed the
allowable built -upon area.
7. The following items will require a modification to the permit:
a. Any revision to the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built -upon area.
e. Further subdivision of the project area.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan.
In addition, the Director may determine that other revisions to the project should require a modification
to the permit.
8. 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.
H. SCHEDULE OF COMPLIANCE
The permittee will comply with the following schedule for construction and maintenance of the
stormwater management system:
a. The stormwater management system shall be constructed in it's entirety, vegetated and
operational for it's intended use prior to the construction of any built -upon surface except roads.
b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will
be repaired immediately.
4

State Stormwater Management Systems
Permit No. SW8 960326
2. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted
stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must
be followed in it's 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 outlet structure, orifice device and catch basins and piping.
g. Access to the outlet structure must be available at all times.
3. Records of maintenance activities must be kept and made available upon request to authorized personnel
of DEM. The records will indicate the date, activity, name of person performing the work and what
actions were taken.
4. This permit shall become voidable unless the facilities are constructed in accordance with the conditions
of this permit, the approved plans and specifications, and other supporting data.
5. Upon completion of construction 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.
6. A copy of the recorded deed restrictions must be submitted to the Division within 30 days of the date
of the recording. The recorded copy must be signed by the permittee, dated, stamped with the deed
book number and page, and bear the stamp of the Register of Deeds.
7. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a
minimum of ten years from the date of the completion of construction.
M. GENERAL CONDITIONS
This permit is not transferable. In the event there is a desire for the facilities to change ownership, or
there is a name change of the Permittee, a formal permit request must be submitted to the Division of
Environmental Management accompanied by an application fee, documentation from the parties
involved, and other supporting materials as may be appropriate. The approval of this request will be
considered on its merits and may or may not be approved.
2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to
enforcement action by the Division of Environmental Management, in accordance with North Carolina
General Statute 143-215.6(a) to 143-215.6(c).
E

State Stormwater Management Systems
Permit No. SW8 960326
3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes,
rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and
federal) which have jurisdiction.
4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions,
the Penmittee shall take immediate corrective action, including those as may be required by this
Division, such as the construction of additional or replacement stormwater management systems.
5. The permittee grants Regional Office Staff permission to enter the property for the purpose of inspecting
all components of the permitted stormwater management facility.
6. The pennit may be modified, revoked and reissued or terminated for cause. The filing of a request for
a permit modification, revocation and reissuance or termination does not stay any permit condition.
Permit issued this the 29th day of May, 1996.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
A--PtUs—ton Howard, Jr., P.E., Director
Division of Environmental Management
By Authority of the Environmental Management Commission
Permit Number SW8 960326
ri

State Stormwater Management Systems
Permit No. SW8 960326
Cardinal Motors Expansion
Stormwater Permit No. SW8 960326
Onslow County
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 comphance and intent of the approved plans and specifications.
Noted deviations from approved plans and specification:
Signature
Registration Number
Date
7

DIVISION OF ENVIRONMENTAL MANAGEMENT
NORTH CAROLINA STORMWATER MANAGEMENT PERMIT APPLICATION
I. GENERAL INFORMATION:
1. Project Name: Clifton Jacobs
S
2. Project Location: (County, State Road, Address) Onslnw County.INCSR 1470
(commonly known as Western Blvd.), 310 Western Blvd., Jacksonville, NC
3. Owner's Name: Clifton Jacobs
Phone:[phone]
4. Mailing Address: 310 Western Blvd,
city Jackcnnvilip State NC Zip 28540
5. Application Date:_ 3/26/96 Fee Submitted: 350.00
7. Nearest Receiving Stream: 5Ce/e5 Creels Class: St Q A) W
8. Project Description: Extension of car lot
II. PERMIT INFORMATION
III
1. Permit No. (will be completed by DEM): SINS g2032C�
2. Permit Type: XX New Renewal
3.
4.
Modification (existing permit no.)
Project Type: Low Density iW1 Detention
0 Infiltration A Mer-17-0 Othe
Other State/Federal Permits/Approvals Required:
(Check appropriate blanks)
XX Sediment/Erosion Control
PROJECT BUILT UPON AREA
Drainage Drainage
Basin Basin
Classification
SC
Allowable Impervious
30%
Total Project Area
77,972
Proposed Impervious
70,444
% Impervious Area
90%
CAMA Major 404 Permit
Breakdown of Impervious Areas
Buildings
Roads
Parking 70,444
Other
Totals 70,444

IV. STORMWATER TREATMENT (Describe how runoff will be treated):
Extended dry detention 0asins gradded swales check dams & sediment pits
V. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
Deed restrictions and protective covenants are required for all low density projects and
all subdivisions prior to the sale of any lot. Please see Attachment A for specific
requirements.
By your signature below, you certify that the recorded deed restrictions and
protective covenants for this project shall include all the items required by the
permit, that the covenants will be binding on all parties and persons claiming
under them, that they will run with the land, that the covenant cannot be changed
or deleted without concurrence from the State, and that they will be recorded
prior to the sale of any lot.
OWNER'S CERTIFICATION
I, Clifton Jaoobs certify that the
(Please print name clearly)
information included on this permit application form is correct, that the project will
be constructed in conformance with the approved plans, that the deed restrictions will
be recorded with all required permit conditions, and that to the best of my knowledge,
the proposed project complies wi requirements of 15A NCAC 2H.1000.
"I ,99,dthorize the below named pet on or firm to submit stormwater plan
f % /%. /
AUTHORIZED AGENT
Person or Firm Name:
Mailing Address: P.O. Box 168
City _ ,larksnnyiIIP State NC zip 28540
Phone: [phone]
Please submit application, fee and plans to appropriate Regional Ofice:'s',i,'." " ,.r•
(see attached map)
E C E I V E
-z-
MAR 2 91996 D
PROJ # &f `NO3Z(a

OPERATION AND MAINTENANCE PLAN
FOR GRASSED SWALES
CARDINAL MOTORS EXPANSION, ONSLOW COUNTY
Swale maintenance basically involves normal grass management
growing activities such as mowing and resodding when
necessary and periodic sediment removal, if significant
deposition occurs. Maintenance shall be performed as
follows:
At least one annually, remove excess sediment, especially
from the upstream edge,m to maintain original contours and
grading.'
At least once annually, repair any erosion and regrade the
swale to ensure that the runoff flows evenly in a thin sheet
through the swale.
At least once annually, inspect vegetation and revegetate
the Swale to maintain a dense growth of vegetation.
Grassed swales shall be mowed at least twice annually to
minimum height of six inches.
S ATU ' OWNER/CLIFTON JACOBS
OWNER'S ADDRESS: C/O Caidinal Motors, 310 Western Blvd.
_Jacksonville. NC 98540
SUBSC�IBED AND SWORN BEFORE ME THIS��_DAY
OF �l C� c i 1996.
X if GGu�
NOTARY�B Ic �y p
MY COMMISSION EXPIRES:�c7(�oZ�/�J
o kIJBLI0

JOHN L. PIERCE - SURVEYING
Land Surveying - Land Planning - Mapping
office: 919-346-9800 .
P. 0. Box 1685
409 Johnson Blvd.
Jacksonville, N.C. 28541
TO Ms. Linda Lewis
N.C. Department of Environment
Health and Natural Resources
Watpr e tion
127 Cardinal Drive Extension
GENTLEMEN: Wilmington, NC 28405-3845
WE ARE SENDING YOU ❑ Attached ❑
❑ Drawings ❑ Prints ❑
❑ Copy of letter ❑ Change order ❑
letter of transmittal
ONE
23; 1996
JOB
on No.
ATTENuoN Ms. Linda Lewis
RE Clifton Jacobs/Cardinal Motors
Stormwater Project No. SW8 960326
Under separate cover via the following items:
Plans ❑ Samples ❑ _Specifications
COPIES
DATE
NUMBER
DESCRIPTION
Sets of "Revised" plans
4 1996 Lui
THESE ARE TRANSMITTED as checked below:
❑ For approval
❑ For your use
❑ As requested
❑ Approved as submitted
❑ Approved as noted
❑ Retumed for corrections
❑ Resubmit copies for approval
❑ Submit copies for distribution
❑ Return corrected prints
❑ For review and comment
❑ For bids due 19 _
❑ Prints returned after loan to us
REMARKS Mr. Frederick E. Cone, P.E., will
foblow up with you by letter concerning these
changes.

State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr. DIVISION OF ENVIRONMENTAL MANAGEMENT Jonathan B. Howes
Governor WATER QUALITY SECTION Secretary
May 15, 1996
Mr. Fred Cone, P.E.
116 Greenway Road
Jacksonville, North Carolina 28540
Subject: ADDITIONAL INFORMATION
Stormwater Project No. SW8 960326
Cardinal Motors
Onslow County
Dear Mr. Cone:
The Wilmington Regional Office received previously requested information for Cardinal Motors
on May 13, 1996. A preliminary review of that information has determined that the application is not
complete. The following information is needed to continue the stormwater review:
1. You have located the grassed swales for both of the dry detention basins inside of the
detention areas. This will not achieve the 85 % TSS removal required. The grassed swale
must be located outside of the pond area. The swale will receive the overflow from the
detention area for final polishing to achieve 85 % TSS.
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to June 15, 1996, or the application will be
returned as incomplete. The return of a project will necessitate resubmittal of all required items, including
the application fee. If you have any questions concerning this matter please feel free to call me at (910)
395-3900.
Sincerely,
Ms. Linda Lewis
Environmental Engineer
DA/arl: S:\WQS\STORMWAT\ADDINFO\960326.MAY
cc: 1Lindif Lewis?
Linda Rimer, Assistant Secretary, DEHNR
Central Files
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

A
D�LJ '�J LL�i�J I
MAY 13199�
FREDERICK E. CONE, P.E.
1116 GREENWAY ROAD
JACKSONVILLE, NC 28540
May 10, 1996
Ms. Linda Lewis, Environmental Engineer
Division of Environmental Management
Water Quality Section
121 Cardinal Drive Extension
Wilmington, NC 28540
Re: Stormwater Project No. SW8 960326
Cardinal Motors Expansion, Onslow County
Dear Ms. Lewis:
A revised plan for the subject project is attached for your
review and approval. The following responses (numerically
sequenced according to your comments) are provided:
1. A vegetative planting plan for the dry detention basins
is provided on the plans.
2. The elevations for the small permanent pools are shown
on the plans at 1' below the existing adjacent grade.
A perforated pipe is also detailed around the orifice
pipe.
3. Due to the drainage grades, we feel it is not practical
to add a diversion swale. Sheet drainage to the
extended dry basin is provided.
4. A copy of the proposed easement will be forwarded in the
near future. The authorized agent for the adjacent
property is currently out of town. Upon his return,
the easement will be signed and a copy forwarded to you.
5. As previously discussed, modifications have been made
to basins A and B to reflect a combination of extended
dry detention basins and grass swales. The rear
drainage swale will consist of sediment basins, check
dams, and grass swale.
We trust this information answers your questions regarding
this project.
Sincerely,
Frederick E. Cone
fc/bb

�'J.
h`.C'f,%C .'!!f
%SUL
A
.0
T. dr, .
,._ ..
,
V
.: .w bu'
i
ADO,

DRAINAGE DATA
CLIFTON JACOBS - CARDINAL MOTORS SITE
GRASS SWALE:
0.71 ACRES ON -SITE
1.89 ACRES OFF -SITE
TOTAL = 2.60 ACRE TRACT
SOILS -ORDINARY FIRM LOAM
RUN-OFF COMPUTATION
RE: GUIDE FOR SEDIMENT CONTROL ON CONSTRUCTION SITES
N.C. BY H. ROONEY MALCOM
Q = CIA
C = 0.90 COMMERCIAL
I = 7.0 PER HOUR FROM CHARTS - 10 YEAR STORM
A = ACRES IN WATERSHED 2.60 ACRES
Q = (0.90) (2.60) (7.0) = 16.38 FE/SEC
TYPICAL DITCH (ALREADY VEGETATED)
V = 1,49- R 2/3 S 1/2
N
S = SLOPE (OUTLET SLOPE 0.49%)
N = ROUGHNESS COEFFICIENT OF THE CHANNEL
R = HYDROLOGIC QUOTIENT A/P
BRANCH
5
V = _J,_,_49 (I OZ)- 2/3 (0.0049) 1/2 = 2.64 FT/SEC
0.04
(ROCK DAMS ARE TO BE INSTALLED AT LOCATION ON PLANS TO SLOW
VELOCITY)
WITH VEGETATION CONTROLLED VELOCITY OF OUTLET IS WELL WITHIN
ALLOWABLE RANGE.)
100' x TOTAIL_DRAINAGE AREA= 2.6 X 100' = 260'
260' = MINIMUM SWALE LENGTH (340' PROVIDED)
DEPTH OF WATER TABLE _ ±2.5'

State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr. DIVISION OF ENVIRONMENTAL MANAGEMENT Jonathan B. Howes
Governor WATER QUALITY SECTION Secretary
April 23, 1996
Mr. Fred Cone, P.E.
116 Greenway Road
Jacksonville, North Carolina 28540
Subject: ADDITIONAL INFORMATION
Stormwater Project No. SW8 960326
Cardinal Motors Expansion
Onslow County
Dear Mr. Cone:
The Wilmington Regional Office received previously requested information for Cardinal Motors
Expansion on April 19, 1996. A preliminary review of that information has determined that the application
is not complete. The following information is needed to continue the stormwater review:
1. A vegetation plan has not been provided. Extended dry detention must have plants that can
withstand frequent inundation. Please see page 21 of the BMP Manual for a listing of
suitable plants, and specify these plants on the drawing.
2. As requested on April 2, 1996, item #1, please add the elevation of the small permanent
pool for the basins to the detail. You have only added the fact that a 4' diameter sediment
trap is to be located around the outlet structure.
3. The request to add a diversion Swale was not addressed. Normally, a written response which
addresses each item in this Office's Additional Information request letter is returned along
with the revised plans. Without that written response, it is difficult to tell whether the
enumerated items have actually been addressed.
4. As requested on April 2, 1996, item #6, ownership of the swale has not been addressed.
5. As requested on April 2, 1996, item #5, additional BMP's for the proposed site which will
provide a total of 85 % TSS removal have not been addressed.
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirtnative Action Employer

Mr. Cone
April 23, 1996
Stormwater Project No. SW8 960326
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to May 23, 1996, or the application will be
returned as incomplete. The return of a project will necessitate resubmittal of all required items, including
the application fee.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
Ms. Linda Lewis
Environmental Engineer
DA/arl: S:\WQS\STORMWAT\ADDINFO\960326-2.APR
cc: Cliff Jacobs, Cardinal Motors
John Pierce, R.L.S.
Linda Lewis
Central Files
c
K

I :$ rrt Ill11
JOHN L. PIERCE - SURVEYING -----------------------
[And Surveying - Land Planning - Mapping
Office: 919.346-9800 .
P. O. Box 1685
409 Johnson Blvd.
Jacksonville, N.C. 28541
10 Ms. Linda Lewis
N.C. Department of Environment Health
and Natural Resources
rd-r
Wilmington NC 28405-3845
GENTLEMEN:
WE ARE SENDING YOU ❑ Attached
❑ Drawings ❑ Prints
❑ Copy of letter ❑ Change order
letter of transmittal
"April 16, 1996
JOB NO,
AYTP IN
LinLewis
RE
Cliff Jacobs Site/Cardinal Motors
❑ Under separate cover via the following items:
❑ Plans ❑ Samples ❑ Specifications
❑ _
COPIES
llA'IE
NUMBER
DESCRIPTION
2
Sets of revised plans
1
Revised "Drainage Data"
1
�."Operation
"Operation and Maintenance Plan for Dry Basins"
and-Maintpriancp PLdo f r e s"
THESE ARE TRANSMITTED as checked below:
❑ For approval
0 For your use
❑ As requested .
❑ Approved as submitted
❑ Approved as noted
❑ Returned for corrections
O Resubmit copies for approval
O Submit copies for distribution
❑ Return corrected prints
❑ For review and comment
❑ For bids due 19
❑ Prints retuned after loan to us
REMARKS Should any additional iNformation
be needed, please advise

,,suTeo
1
ti
`� y2
State of North Carolina
Department of Environment, Health, and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr. DIVISION OF ENVIRONMENTAL MANAGEMENT Jonathan B. Howes
Governor WATER QUALITY SECTION Secretary
April 2, 1996
Mr. Fred Cone, P.E.
116 Greenway Road
Jacksonville, North Carolina 28540
Subject: ADDITIONAL INFORMATION
Stormwater Project No. SW8 960326
Cardinal Motors Expansion
Onslow County
Dear Mr. Cone:
The Wilmington Regional Office received a Stormwater Management Permit Application for
Cardinal Motors Expansion on March 29, 1996. A preliminary review of that information has determined
that the application is not complete. The following information is needed to continue the stormwater
review:
Extended dry detention requirements include:
a. A small permanent pool at the orifice to prevent clogging from floating debris.
b.. A vegetation plan by a NC licensed professional.
C. A length to width ratio of 3:1.
Please show the elevation of the small permanent pool on the cross -sections of each basin.
Due to the method of collection of the runoff, sheet flow into each basin, the length to width
ratio is difficult to achieve. Is it possible to add a diversion swale which will collect the
runoff and direct it into the upper portion of the basin?
✓2. A signed Operation and Maintenance Plan which includes requirements for both dry
detention and the grassed swale. Please refer to the BMP guidance document Mr. Pierce has
for a listing of the maintenance requirements,
127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone [phone] • Fax [phone]
An Equal Opportunity Affirmative Action Employer

Mr. Cone
April 2, 1996
Stonnwater Project No. SW8 960326
3. Grassed swale requirements include:
a. Non erosive velocity for the 10 year storm. Please show calculations.
b. 100' of swale per acre of drainage area. Please indicate compliance with.
C. The type of soil. Must be permeable and non -compacted.
d. The depth of the seasonal high water table. Must be at least 1' below the bottom of
the swale.
No calculations to indicate compliance with these requirements for the rear Swale was
included.
4. Some type of additional BMP for both the rear swale and the dry basins. Grassed swales
only provide approximately 35 % TSS removal, and dry ponds provide only 50 %, while the
minimum must be 85 % or better. Possibilities inlcude replacing the existing pipe with a
perforated pipe to encourage infiltration, with a controlled outlet, or a 30' vegetated filter
before or after the Swale.
5. The Swale appears to be located off the property. Is it possible for work to be done on this
swale? How about dealing with periodic maintenance? Will the current property owner allow
such activities? What will happen if the property that the swale is located on is sold and the
new owner wants to pipe the swale? The BMP's that you are proposing must be maintained
for the life of this project.
q(�'? 6. Has off -site drainage been considered in the design of the grassed swale?
P]

Mr. Cone
April 2, 1996
Stornnwater Application No. SW8 960326
Please note that this request for additional information is in response to a preliminary review. The
requested information should be received by this Office prior to May 2, 1996, or the application will be
returned as incomplete. The return of a project will necessitate resubmittal of all required items, including
the application fee.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
Ms. Linda Lewis
Environmental Engineer
DA/ari: S:\WQS\STORMWAT\ADDINFO\960326.MAR
cc: John Pierce, R.L.S.
Linda Rimer, Assistant Secretary, DEHNR
(Linda Le'wiZ
Central Files

JOI-IN L. PIERCE - SURVEYING^;T@T2TT�f►I�'�
Land Surveying - land Planning - Mapping lll��� MAR. 2 9 1996 J-�
Office: 919-346-9800 .
P. O. Box 1685
409 Johnson Blvd.
Jacksonville, N.C. 28541
TO Ms. Linda Lewis
N.C. Department of Environment. Health
and Natural Resources
—t27-Ea
Wilmington. NC 28405-3845
GEN,rLIiMEN:
WE ARE SENDING YOU ❑ Attached
❑ Drawings ❑ Prints
❑ Copy of letter ❑ Change order
letter of transmittal
❑ Under separate cover via the following items:
❑ Plans ❑ Samples ❑ Specifications
❑ --
COPIES
DATE
NUMBER
DESCRIPTION
2
--fifty dollars ($350.00)
"Stormwater Management Permit A i io "
THESE ARE TRANSMITTED as checked below:
❑ For approval
❑ For your use
❑ As requested
❑ Approved as submitted
❑ Approved as noted
❑ Returned for corrections
❑ Resubmit copies for approval
❑ Submit copies for distribution
❑ Return corrected prints
❑ For review and comment
❑ For bids due 19
❑ Prints returned after loan to us
❑ --
��.9rTi71fG . . . .. .. ... .. .
1 / ll. IffaTil IffiN1..
SlGNFD-
``nn\\\\\- ,,t�rrf����gy pg[i.,gn� pg+��� ,�, j
STORM I tl ll ER
D E C E I V E
MAR 2 91996 D
PROJ N
D E M

ATTACHMENT A
LOW DENSITY PROJECTS
GENERAL SUBMITTAL REQUIREMENTS
1. A completed coastal etormwater permit application.
2. Two sets of plane showing north arrow, scale, revision date,
property/project boundaries clearly marked, contours, drainage basing, mean
high water line, wetlands, easements, a minimum 30' buffer between surface
waters and proposed impervious areas, and road cross -sections.
3. Calculations of the built -upon area. For subdivisions, please show the
methodology for arriving at the per lot built -upon area. For non -
subdivision projects, break down the calculation into buildings, roads,
parking and other (include all impervious areas).
4. Low Density projects with curb and gutter will require:
- drainage basins and Swale locations delineated on plans
- detail of swales (minimum 100 l.f. and 5:1 side slopes)
- velocity calculations
- inlet -outlet elevations
- type of grass cover
DEED RESTRICTION REQUIREMENTS
NOTES:
The following items must be included for all low density projects:
No more than square feet of any lot, including that portion of
the right-of-way between the edge of pavement and the front lot line, shall
be covered by impervious structures, including asphalt, gravel, concrete,
brick, stone, elate or similar material, not including wood decking or the
water surface of swimming pools. This covenant is intended to ensure
compliance with the etormwater permit issued by the State of North Carolina.
The covenant may not be changed or deleted without the consent of the State.
1. If lot sizes vary significantly, owner should provide attachment with lot
number, size and allowable impervious area for each lot.
2. No one may fill in or pipe any roadside swales or lot line swales, except
as necessary to provide a driveway crossing.
3. For curb and gutter projects, no one may pipe, fill in or alter any lot line
Swale used to meet North Carolina Stormwater Permit requirements.
J` ';;-)
; fT� 1) tl
pECEI-V.E,
MAR 2 9.1996 D
D E M
PROJ H

JOHN L. PIERCE - SURVEYING
Land Surveying - Land Planning - Mapping
Office: 919-346-9800 .
P. O. Box 1685
409 Johnson Blvd.
Jacksonville, N.C. 28541
TO Ms. Linda Lewis
N.C. Department of Environment, Health
and —Natural —Resati ee
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
GENTLEMEN:
WE ARE SENDING YOU ❑ Attached
❑ Drawings ❑ Prints
❑ Copy of letter ❑ Change order
77
Map 2 5 io43
letter of transmittal_'
'March 22, 1996
JOB NO.
ATTENTION '
Linda Lewis
RE
Clifton
❑ Under separate cover via the following items:
❑ Plans ❑ Samples ❑ Specifications
❑ -
COPIES
DATE
NUMBER
DESCRIPTION
2
Sets of Stormwater Plans
**The Stormwater,Application is in the proceSSiQf
signed by the owner. We will forward to you the signed
application in the next few s[.. **
Qd�a
!1
fl
k �"
N 1 i, A Y�
u ruvu Uuuu �uu
PROD A Z
THESE ARE TRANSMIri-ED as checked below:
❑ For approval
❑ For your use
❑ As requested
❑ Approved as submitted
❑ Approved as noted
❑ Returned for corrections
❑ Resubmit copies for approval
❑ Submit copies for distribution
❑ Relum corrected prints
❑ For review and comment
❑ For bids due 19
0 Prints returned after loan to us
TAKNO111111i/1.
1 111. 11 1 .