HomeMy WebLinkAboutSW8000329_HISTORICAL FILE_20001013 STORMWATER DIVISION CODING SHEET
POST-CONSTRUCTION PERMITS
PERMIT NO. SW8 0003a-�
DOC TYPE ❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE gay I 6
YYYYMMDD
$trte of North Carolina
Department of Environment A
and Natural Resources ' •
Wilmington Regional Office ^_^`
d�
James Hunt, Jr., Governor NCDENK
Bill Holman, Secretary
Division of Water Quality NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
October 13, 2000
Mr. C.A. Boggs, President
Boggs Paving, Inc.
PO Box 1609
Monroe,NC 28111-1609
Subject: Permit No. SW8 000329
Boggs Asphalt Plant, Leland
High Density Stormwater Project
Brunswick County
Dear Mr. Boggs:
z
The Wilmington Regional Office received a complete Stormwater Management Permit Application for Boggs
Asphalt Plant, Leland on September 14, 2000. 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 000329 dated October 13, 2000, for the construction of Boggs Asphalt Plant, Leland.
This permit shall be effective from the date of issuance until October 13,2010,and shall be subject to the conditions
and limitations as specified therein. Please pay special attention to 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
adjudicatory 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 276 1 1-7447. 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 (910) 395-3900.
Sincerely,
Rick Shiver
Water Quality Regional Supervisor
RSS/arl: S:\WQS\STORMWAT\PERMIT\000329.00T
cc: John Hazelton, P.E.
Tony Roberts, Brunswick County Inspections
Linda Lewis
Wilmington Regional Office
Central Files
127 Cardinal Dr. Ext.,Wilmington,North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper
State Stormwater Management Systems
Permit No. SW8 000329
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGENIENI' 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
Boggs Paving, Inc.
Boggs Asphalt Plant, Leland
Brunswick County
FOR THE
construction,operation and maintenance of 2 wet detention ponds in compliance with the provisions of 15A NCAC
21-1 .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 Water Quality
and considered a part of this permit.
This permit shall be effective from the date of issuance until October 13,2010 and shall be subject to the following
specified conditions and limitations:
1. 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 on page
3 of this permit, the Project Data Sheet. The stormwater controls have been designed to handle the runoff
from 164,700 ft2 and 173,393 ft2, respectively, of impervious area.
3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts
of the permit.
4. The tract will be limited to the amount of built-upon area indicated on page 3 of this permit, and per
approved plans.
5. The runoff from the first 1" of rain from all onsite and offsite built-upon area permitted with this project
must be directed into the permitted stormwater control system.
2
State Stormwater Management Systems
Permit No. SW8 000329
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name: Boggs Asphalt Plant, Leland
Permit Number: SW8 000329
Location: Brunswick County
Applicant: Mr. C.A. Boggs, President
Mailing Address: Boggs Paving, Inc.
PO Box 1609
Monroe, NC 28111-1609
Application Date: September 14, 2000
Name of Receiving Stream/Index 9: Banton Branch / (CFR 18-77-1-1-2)
Classification of Water Body: "C Sw"
Pond Number: 1 2
Design Storm: 1" V
Pond Depth, feet: 6 6
Permanent Pool Elevation, FMSL: 41.5 40.5
Drainage Area, acres: 4.77 5.42
Total Impervious Surfaces, ft': 164,700 173,393
Offsite Area entering Pond, ft': none, per Engineer
Required Surface Area, f 2: 9,451 9,776
Provided Surface Area, ft2: 9,775 9,821
Required Storage Volume, ft': 13,218 13,988
Provided Storage Volume, ft': 15,998 16,154
Temporary Storage Elevation, FMSL: 43 42
Controlling Orifice: 1.5"� pipe 1.5"� pipe
3
State Stormwater Management Systems
Permit No. SW8 000329
If. SCHEDULE OF COMPLIANCE
I. The stormwater management system shall be constructed in it's entirety,vegetated (see Section 111, Part 7)
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. "file permiltee 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 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 outlet structure, orifice device and catch basins and piping.
g. Access to the outlet structure must be available at all times.
4. Records of maintenance activities must be kept and made available upon request to authorized personnel
of D WQ. The records will indicate the date,activity,name of person performing the work and what actions
were taken.
5. Decorative spray fountains will not be allowed in the stornwater treatment system.
6. The facilities shall be constructed as shown on the approved plans.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.
7. 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 all 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.
8. I fthe stormwater system was used as an Erosion Control device,it must be restored to design condition prior
to operation as a stormwater treatment device, and prior to occupancy of the facility.
9. A modification must be permitted priorto any construction.Thefollowing 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,acquisition,or sale of the project area.The project area is defined as all property
owned by the permiltee, for which Sedimentation and Erosion Control Plan approval was sought.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan.
10. The Director may determine that other revisions to the project should require a modification to the permit.
11. 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.
4
State Stormwater Management Systems
Permit No. S W8 000329
12. Prior to the sale of any portion of the property, an access/maintenance easement to the stormwater facilities
shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale
of any portion of the property.
13. The permittee is responsible for verifying that the proposed built-upon area does not exceed the allowable
built-upon area.
14. The Director may notify the permittec 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 permittec shall
provide copies of revised plans and certification in writing to the Director that the changes have been made.
15. The permittee shall notify the Division of any name,ownership or mailing address changes within 30 days.
III. GENLRAL CONDITIONS
1. 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 Water
Quality 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 Permittce to
enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute
143-215.6A to 143-215.6C.
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 DENR Staff permission to enter the property for the purpose of inspecting all
components of the permitted stormwater management facility.
6. The permit 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.
7. Unless specified elsewhere,permanent seeding requirements for the stormwater controls must follow the
guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual.
Permit issued this the 13th day of October, 2000.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
C AA-
Kerr T. Stevens, Director
Y Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 000329
5
State Stormwater Management Systems
Permit No. SW8 000329
Boggs Asphalt Plant, Leland
Stormwater Permit No. SW8 000329
Brunswick County
Designer's Certification
1, ,as a duly registered in
the State of North Carolina, having been authorized to observe (periodically/weekly/full time)the construction of
the project,
(Project)
for (Project Owner)hereby state that,to the best of my abilities,due care
and diligence was used in the observation of the project construction such that the construction was observed to be
built within substantial compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification:
SEAL
Signature
Registration Number
Date
6
pk WFC
®1CK=13 l LETTER 01 RVA-W-9D
909 Market Street SEP 14 2000
Wilmington, NC 28401
910.762.4200 0 FAX: 910.762.4201
DATE: 9/14/00 JOB NO.: 00109.80 BY.
TO: NCDENR- Division of Water Quality _
127 Cardinal Dr. Ext. RE: Boggs Asphalt Plant
Wilmington, INC 28405 Stormwater Project No. SW8 000329
Request for Additional Information - Response
ATTENTION: Linda Lewis
We are sending via:
0 Overnight Regular Mail F-1 Pick-up Hand Delivered
The following items:
Correspondence 0 Plans Specifications FX Other as listed below:
COPIES DATE NO. DESCRIPTION
2 9/14/00 1 Response to DWQ Comments
2 9/14/00 2 Revised Stormwater Plan & Stormwater Details
2 9/14/00 3 Revised Stormwater Permit Applications & Supplements
2 9/14/00 4 Revised Stormwater Calculations
THESE ARE TRANSMITTED as checked below:
8 x For Approval B As requested e Approved as submitted B Returned for corrections
For your use For review and comment Approved as noted Forward to subcontractor
REMARKS:
COPY TO: Mr. Carl Boggs Boggs Paving, Inc. SIGNED: "� r
Stormwater Treatment - Wet Detention Pond #1 Design
7/3/00
Stormwater Project No.SW8 000329
Boggs Paving, Inc.- Basin#1
Design Criteria
Drainage Area = 207,800 112
Impervious Area= 164,700 ft2
Percent Impervious= 79%
Main Pond Depth = 6.0 ft
Forebay Pond Depth= 6.0 It
Temporary Pool Depth= 1.5 ft
TSS Removal, Coastal Co. = 90%
SA/DA= 4.6%
Required Surface Area= 9,560 ft2
Rv= 0.77
Design Storm= 1.00 in
Required Temporary Volume= 13,334 ft3
Pond Design
Provided Surface Area P.P. = 9,605 ft2
Provided Temporary Volume= 15,998 ft3
Permenant Pool Volume= 37,056 ft3
Forebay Volume Required = 7,411 ft3
Forebay Volume Provided = 7,488 ft3
Orifice Sizing
Design Temporary Volume= 13,334 ft3
Flowrate, 2 Day Drawdown = 0.0 cfs C IVED
Flowrate, 5 Day Drawdown = 0.031 31 cfs I�LK:d'
1.5"Orifice Head= 0.7188 It
2" Orifice Head = 0.7083 it SEP 14 2000
Flowrate, 1.5"Orifice= 0.050 cfs
Flowrate, 2.0"Orifice= 0.088 cfs DWQ
Drain Time, 1.5"Orifice= 3.1 days PROJ#
Drain Time,2.0"Orifice= 1.7 days
Results
Permanent Pool Elevation = 41.5 ft, msl
Temporary Pool Elevation = 43.0 ft, msl
Overflow Structure Elevation = 43.0 ft, msl
Emergency Spillway Elevation = 43.5 ft, msl
Orifice Size= 1.5 Inch
Main Basin `�p�gunuuprrr�
Permanent Pool Width = 56.5 ft ��.``� ��1 CqR
Permanent Pool Length = 128ft �a SS/t
Temporary Pool Width = 65.5 5.5 ft �Q
Temporary Pool Length = 141.5 ft SEAL °
Forebav E 025397
Permanent Pool Width = 56.5 ft iA. /S/oo
Permanent Pool Length = 42.0 ft S ''-' ✓GINEFy� �
I, »_
WKD#00109.80
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Stormwater Treatment -Wet Detention Pond #2 Design
7/3/00
Stormwater Project No.SW8 000329
Boggs Paving, Inc. -Basin#2
Design Criteria
Drainage Area= 236,163 ft2
Impervious Area = 173,393 ft2
Percent Impervious= 73%
Main Pond Depth = 6.0 ft
Forebay Pond Depth = 6.0 It
Temporary Pool Depth = 1.5 ft
TSS Removal, Coastal Co. = 90%
SA/DA= 4.1%
Required Surface Area= 9,633 ft2
Rv= 0.71
Design Storm= 1.00 in
Required Temporary Volume= 13,973 ft3
Pond Design
Provided Surface Area P.P. = 9,638 ft2 RE u .LV�
Provided Temporary Volume= 16,154 ft3
Permenant Pool Volume= 38,064 ft3 rr) r ^:
Forebay Volume Required = 7,613 ft3 sCi
Forebay Volume Provided = 7,620 113 DWQ
Orifice Sizing PROJ #
Design Temporary Volume= 13,973 ft3
Flowrate,2 Day Drawdown = 0.081 cfs
Flowrate, 5 Day Drawdown = 0.032 cfs
1.5"Orifice Head = 0.7188 ft
2" Orifice Head= 00.050 ft RECEIVED
Flowrate, 1.5"Orifice= 0.050 cfs
Flowrate,2.0"Orifice= 0.088 cfs
Drain Time, 1.5"Orifice= 3.2 days SEP Drain Time, 2.0"Orifice= 1.8 days 14 2000
Results DWQ
Permanent Pool Elevation = 40.5 ft, msl iP
Temporary Pool Elevation = 42.0 It, msl
Overflow Structure Elevation = 42.0 ft, msl
Emergency Spillway Elevation = 42.5 ft, msl
Orifice Size= 1.5 Inch
Main Basin „`pruumrp�r��
Permanent Pool Width= 61 ft
Permanent Pool Length= 118 ft �,`p� OFESS/ �� '•
Temporary Pool Width= 70 ft
Temporary Pool Length = 122.5 ft (f SEAL
Foment 02539,
Permanent Pool Width = 61 ft s � '�(S-(ob
Permanent Pool Length = 40.0 ft ;,0$ �NGINcG� vU.`
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DICKSON RECEIVED JOB N0.
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Response to
NCDENR Division of Water Quality
Request for Additional Information
September 14, 2000
Boggs Asphalt Plant
Stormwater Project No. SW8 000329
1. I think you misunderstood item number 9 of my April 26, 2000, letter. The
required surface area obtained by using the SA/DA ratio tables DOES include the
forebay area. What I meant to convey to you was that when I scaled the pond
area (including forebay) using the dimensions provided, I kept coming up with
less surface area than what you were reporting on the supplement. I only wanted
you to check the dimensions and accurately report the total surface area at
permanent pool in each pond being provided (included the forebay), as they scale
out using the dimensions shown. This assumes of course that there is sufficient
area to meet the required SA/DA ratio.
Based on the dimensions shown on the plans, the total surface area at permanent
pool provided in Pond 1 is approximately 12,317 ftz. The supplements and
calculations are incorrectly reporting the surface area without the forebay. Please
revise the supplements and calculations.
Response: Please review attached Plans and Wet Detention Basin Supplements.
The revised calculations use the forebay area in the required surface area obtained
from the SA/DA ratio tables.
2. The 170' dimensions shown on the plans, the total surface area at permanent pool
of Pond 1 is incorrect. The dimension shown indicates that it is 170' from end to
end, but in reality, it is only 170' from the end to the forebay wall. Please revise
the detail to show the entire correct dimension including the forebay.
Response: Please review attached Plans and Wet Detention Basin Supplements.
3. The provided 1" storage volume must necessarily include the storage in the
forebay above the permanent pool. Please check to make sure you have done this.
Response: Please review attached Plans and Wet Detention Basin Supplements.
RECEIVED
SEP 1,A 2000
DWQ
PROJ#
State of North Carolina
Department of Environment
and Natural Resources r, 0
Wilmington Regional Office
James B. Hunt, Jr., Governor on
Mm
Bill Holman`,, Secretary NLVww- NR
Division of Water Quality NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
,tune 26, 2000
Mr. John Hazelton, P.E.
W.K. D.ickson
909 Market Street
Wilmington, NC 28401
Subject: ACKNOWLEDGMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SWS 000129
Boggs Asphalt Plant
Brunswick County
Dear Mr. Hazelton:
The Wilmington Regional Office received a Stormwater Management Permit Application for Boggs
Asphalt Plant on May 25, 2000. A preliminary review of that information has determined that the
an is not complete. The following information is needed to continue the stormwater review:
1. I think you misunderstood item number 9 of my April 26, 2000, letter. The required surface
area obtained by using the SA/DA ratio tables DOES include the forebay area. What I meant
to convey to you was that when 1 scaled the pond area (including forebay) using the
dimensions provided, I kept coming up with less surface area than what you were reporting
on the supplement. I only wanted you to check the dimensions and accurately report the total
surface area at permanent pool in each pond being provided (including the forebay), as they
scale out using the dimensions shown. This assumes of course that there is sufficient area to
meet the required SAIDA ratio.
Based on the dimensions shown on the plans, the total surface area at permanent pool
provided in Pond 1 is approximately 12,317 ft', and for Pond 2 is 12,261 ft". The
supplements and calculations are incorrectly reporting the surface area without the forebay.
Please revise the supplements and calculations.
2. I11c I' U' dit:rn :;i1 :;L:::;; br the permanent pool of Pond i is incorrect. The dimension
shown indicates that it is 170' from end to end, but in reality, it is only 170' from the end to
the forebay wall. Please revise the detail to show the entire correct dimension including the
fcrebay.
3. The provided I" storage volume must necessarily include the storage in the forebay above
the permanent pool. Please check to make sure you have done this.
127 Cardinal Dr. Ext.,Wilmington,North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004
An Equal Opportunin.Affirmative Action Employer 50% recycled/10% post-consumer paper
Mr. I-lazelton
June 26. 2000
Stormwater Project No. S'A'S 000329
---------....-----------------------------------
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 July 26, 2000, 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 need additional time to submit the information, please mail or fax your request for a time
extension to the Division at the address and fax mtmber at the bottom of this letter. The request must
indicate the date by which you expect to submit the required information. The Division is allowed 90
days from the receipt of a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an approved
Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action
pursuant to NCGS 143-215.6A.
Please reference the State assigned project number on all correspondence. Any original documents
that need to be revised have been sent to the e:naineer or agent. All original documents must be returned or.
new originals must be provided. Copies are not acceptable. If you have any questions concerning this
rnatter please feel free to call me at (910) 395-3900.
S
inc
erely
,
_
Linda Lewis
Environmental Engineer
RSS/arL S:\WQS\STORMWAT\ADDINFO\000329.JUN
cc: Linda Lewis
127 Cardinal Ur. Ext., Wilmington,North Carolina 28405 Telephone 910-39.5-3900 FAX 910-350-2004
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper
r^
Permit No. SW8 000329
(to be provided by DWO)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATIONT FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin supplement for
each basin, design calculations, and plans and specifications showing all basin and outlet structure details.
1. PROJECT INFORMATION
Project Name: Bps Asphalt Plant- Leland
Contact Person: Margaret Gray __ _Phone Number:_(910) 762-4200
For projects with multiple basins, specify which basin this worksheet applies to: # 1
Elevations
Basin Bottom Elevation 35.5 ft. (floor of the basin)
Permanent Pool Elevation _ 41.5 ft. (elevation of the orifice)
Temporary Pool Elevation _ 43.0 ft. (elevation of the discharge structure overflow)
Areas
Permanent Pool Surface Area _9,605 sq. ft. (water surface area at the orifice elevation)
Drainage Area . 207,800_ sq. ft. (on-site and off-site drainage to the basin)
Impervious Area _ 164,700 sq. ft. (on-site and off-site drainage to the basin)
Volumes
Permanent Pool Volume 37,056 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 16,220 _ cu. ft. (volume detained above the permanent pool)
For.;l:a Volume -
cu. it. (approximately:.0/ of total vo?+rme,)
Other parameters
SA/DA' _ 4.6% (surface area to drainage area ratio from, DCVO table)
Diameter of Orifice 1.5 in. (2 to 5 day ten7porary-pool draw-down required)
Design Rainfall 1.0 in.
Design TSS Removal' _90.0 % (minimum 85%required)
Footnotes:
When using the Division SAIDA tables, the correct SAIDA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for
nonstandard table entries.
' In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90%TSS removal. The NCDENR BMP manual provides design tables for both 85%TSS removal and 90%TSS removal.
Form SWU-102 Rev 3.99 Page I of
H. 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. 1005.
Initial in the space provided to indicate the following design requirements have been met and supporting documentation is
attached. If the applicant has designated an agent in the Stormwater Management Permit Application Form, the agent may
initial below. If a requirement has not been met, attach justification.
Applicants Initials
ic
t / _a. The permanent pool depth is between 3 and 6 feet(required minimum of 3 feet).
__b. The forebay volume is approximately equal to 20% of the basin volume.
c. The temporary pool controls runoff from the design storm event.
_ d. The temporary pool draws down in 2 to 5 days.
_ _e. If required, a 30-foot vegetative filter is provided at the outlet(include non-erosive flow calculations)
Af. The basin length to width *ratio is greater than 3: 1.
The basin side slopes above the permanent pool are no steeper than 3: 1.
—L1i!�—h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).. Vegetative
cover above the permanent pool elevation is specified.
A trash rack or similar device is provided for both the overflow and orifice.
_ ( _k. A recorded drainage easement is provided for each basin including access to nearest right-of-way.
1. If the basin is used for sediment and erosion control during construction, clean out of the basin is
specified prior to use as a wet detention basin.
m. A rnechan.ism is specified which will drain the basin for maintenance or an emergency.
11I. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including fbrebays and the vegetated
filter if one is provided.
This system (check onc-) does_X does not incorporate a vegetated filter at the outlet.
This system (check one? _ does X does not incorporate pretreatment other i;ian a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4
Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation; erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximuiu iieight of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality
(i.e. stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it.will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 4 . 5 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 4.5 feet in the forebay, the sediment shall be removed.
BASIN DJAGRA.M
ill in the blanks)
p Permanent Pool Elevation 41 . 5
Sediment Re oval El. 3_0 75 o I I `—
% dime.[Removal Elevation 3 • - 75%
_Bottom El e anon ------- -------------------------------------Y.------ /
Bottom Elevation 35- 5 . • �25"0 /
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Page 3 of 4
7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
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.
Print name: C .A. ( Drew ) Boggs III
'title: President, Boggs Paving , Inc .
Address: P.O . Box 1609 , Monroe, NC 28111 -1609
Phone: 704-289-8482
Signature:
Date: 5721-cr) J
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and
a resident of the subdivision has been named the president.
I, /t unc� s 5-?a w r a Notary Public for the State of AiY 11-k n z)t/-s
County of do hereby certify that Coe Z ZZL
personally appeared before me this .2V�1 day ofZa rcG, 2doo , and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
SEAL
My commission expires eZ&t4 M
Form SWU-102 Rev 3.99 Page 4 of 4
Permit No. SW8 000329
(to be provided by D 6VQ
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin supplement for
each basin, design calculations, and plans and specifications showing all basin and outlet structure details.
1. PROJECT INFORMATION
Project Name: Boggs Asphalt Plant- Leland
Contact.Person: Margaret Gray Phone Number: (910) 762-4200
For projects with multiple basins, specify which basin this worksheet applies to: # 2
Elevations
Basin Bottom Elevation 34.5 ft. (floor of the basin)
Permanent Pool Elevation 40.5 ft. (elevation of the orifce) .
Temporary Pool Elevation 42.0 ft. (elevation of the discharge structure overflow)
Areas
Permanent Pool Surface Area 9,638 sq. ft. (water surface area at the orifice elevation)
Drainage Area _ 236,163 sq. ft. (on-site and off-site drainage to the basin)
Impervious Area 173,393 sq. ft. (on-site and off-site drainage to the basin)
Volumes
Permanent Pool Volume --TO,
33.064 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 20,221 cu. ft. (volume detained above the permanent pool)
Forebav Volume 7,620 _ cu. ft. gaprr; imately 20% of 101'al volume)
Other parameters
SAIDA' _ 4.1% (stnface area to drainage area ratio firom, DCVO table)
Diameter of Orifice 1.5 _ in. (2 to 5 day temporary pool draw-down required)
Design Rainfall 1 0 in.
Design TSS Removal 90.0 % (minimum 85%required)
Footnotes:
When using the Division SAIDA tables, the correct SAIDA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for
nonstandard table entries.
' In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90%TSS removal. The NCDENR BMP manual provides design tables for both 85%TSS removal and 90%TSS removal.
Form SWU-102 Rev 3.99 Page I of
IL 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 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. If a requirement has not been met, attach justification.
Applicants Initials
a. The permanent pool depth is between 3 and 6 feet(required minimum of 3 feet).
tM U b. The fore bay volume is approximately equal to 20% of the basin volume.
Ptl& c. The temporary pool controls runoff from the design storm event.
1yq d. The temporary pool draws down in 2 to 5 days.
e If required, a 30-foot vegetative filter is provided at the outlet(include non-erosive flow calculations)
j J. The basin length to width *ratio is greater than 3: 1.
g. The basin side slopes above the permanent pool are no steeper than 3: 1.
{ _h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).. Vegetative
cover above the permanent pool elevation is specified.
� j. A trash rack or similar device is provided for both the overflow and orifice.
k. A recorded drainage easement is provided for each basin including access to nearest right-of-way.
_ IMIA_1. If the basin is used for sediment and erosion control during construction, clean out of the basin is
n ' specified prior to use as a wet detention basin.
m. A mechanism is specified which will drain the basin for maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detentions basin system is define:'. as the wet detention basin, pretreatment including forebays and the vegetated
filter if one is provided.
This system (check one)_ does X does not incorporate a vegetated filter at the outlet.
This system (check one)_ does X does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4
Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75%'of the original design depth (see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality
(i.e. stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 4. 5 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 4 5 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAI`I
(fill in the blanks)
p Permanent Pool Elevation 40 . 5
Sediment Re oval El._3 6 ..0 7.75 0
------------- Sediment Removal Elevation 6 O 75%
Bottom Ele atiom �4 - 5 % ----------------------------------- -------- -------
Bottom Elevation 34 . 5 250/1
FOREBAY MAIN POND'
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. I o f the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
Foam SWU-102 Rev 3.99 Page 3 of 4
%. All components of the wet detention basin system shall be maintained in good working order.
1 acknowledge and agree by my signature below that I am responsible for the performance of the seven
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.
Print name: C .A. ( Drew ) Boggs III
Title: President, Boggs Paving , Inc .
Address: P.O. BOX 1609 , Monroe, NC 28111 -1609
Phone: 704-289-8482
Signature:_/ 2zr/ S-&
Date: J-L1'-Op
Note: The legally responsible party should not be a homeowners association unless more than 50%of the lots have been sold and
a resident of the subdivision has been named the president.
I, JI_4 ze- .5 2cjwn a Notary Public for the State of 1"b(441 (_41eol,,, ,
County of gry .oyF' do hereby certify that �Qr 4 • 66";4S
personally appeared before me this day of h"M4 ZOOO , and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
i
i
SEAL
My commission expires_-T�^ .n�i
i Form SWU-102 Rev 3.99 Page 4 of 4
- P► WK
DICKSON LETTER OF TRANSMITTAL
909 Market Street ML!-�-'t!A W
Wilmington, NC 28401 MAY 2 0
910.762.4200 0 FAX: 910.762.4201
DATE: 5/25/00 JOB NO.: 00109.80 BY. G
TO: NCDENR- Division of Water Quality
127 Cardinal Dr. Ext. RE: Boggs Asphalt Plant
Wilmington, NC 28405 Stormwater Project No. SW8 000329
Request for Additional Information - Response
ATTENTION: Linda Lewis
We are sending via:
0 Overnight Regular Mail 0 Pick-up 5_1 Hand Delivered
The following items:
Correspondence F_� Plans 0 Specifications FX Other as listed below:
COPIES DATE NO. DESCRIPTION
2 5/28/00 1 Response to DWQ Comments
2 5/28/00 2 Revised Stormwater Plan & Stormwater Details
2 5/28/00 3 Revised Stormwater Narratives
2 5/28/00 4 Revised Stormwater Permit Applications & Supplements
2 5/28/00 5 Revised Stormwater Calculations
2 5/28/00 6 Wetland Evaluation, Land Management Group, Inc.
THESE ARE TRANSMITTED as checked below:
ex For Approval As requested Approved as submitted Returned for corrections
For your use B For review and comment e Approved as noted Forward to subcontractor
REMARKS:
COPY TO: Mr. Carl Boggs, Boggs Paving, Inc. SIGNED: rv\�
Response to
NCDENR Division of Water Quality (1 E C E I V E D
Request for Additional Information �unu(
May 25, 2000 MAY 2 5 2000
Boggs Asphalt Plant �32c1
Stormwater Project No. SW8 000329 PRW
1. As the owner, you are not qualified to make the determination that no wetlands
exist on the site, unless you have had training in the identification of wetlands,
and have the Corps official permission to make this determination. Please have a
person who has the education and experience make this call.
Response: Please review the enclosed Wetland/Upland Evaluation by Land
Management Group, Inc. performed by Rob Moul, MEM. No 404 wetlands are
present on the site.
2. Please add the following items to the vicinity map: State Road number of
Lanvale Drive (if any); the direction to Wilmington from the project; the
distance from the nearest major road intersection to the project; and the nearest
major road intersection.
Response: Please see revise Vicinity Map. The exit off US 74 is approximately
7.0 miles west of Wilmington.
3. As discussed at the workshops last year, the forebay volume is supposed to be
based on 20% of the permanent pool volume, the 1" volume. Please revise.
Response: The forebay has been sized on 20% of the main basin volume provided
below the permanent pool elevation for Ponds 1 and 2.
4. Please seal the design calculations.
Response: Please see revised and sealed design calculation sheets.
5. Please report the impervious areas in square feet on the application.
Response: Please see revised application.
6. Section III of the application for Pond 2 reports the impervious area as 4.8 acres,
or 89% percent impervious, but the calculations and supplement both use 4.43
acres, or 82%. As a result, the SAMA ratio is too small, and the surface area
provided is deficient. Please correct and submit revised plans, supplement and .
calculations as needed.
Response: Pond 2 has an impervious area of 173,393 sq. ft. with a percent
impervious area of 73%.
7. The supplement for Pond 2 indicates that a 2" orifice will be used, but the plans
and calculations show a 1.5" orifice. Please correct and submit revised plans or
calculations.
Response: Pond 1 and 2 will both have a 1.5" orifice, please see revised plans and
calculations.
S. In Section III of the supplement form, the sediment removal benchmarks should
be reported as depths, not elevations. Essentially, the way it is written now, you
will be cleaning out a 6' deep pond when the depth is 36'. This should be
reported as 4.5', or 75% of 6.
Response: The benchmarks were originally written as elevations, they have been
revised as depths.
9. The surface areas reported for both ponds, are less than what is actually provided,
based on the dimensions shown on sheet c-2. Please accurately report on the
supplements what is provided in the pond, based on the dimensions provided.
Response: The original required SA/DA surface areas were to include the surface
area of the forebay also. The surface areas of the main basins have been revised to
include the required SA/DA area not including the forebay.
10. There is a typo on the dimensions for Pond 1. The length should be 172.5', not
127.5'.
Response: Please see revised plan sheets.
11. The grading of the perimeter grassed collection swales is of paramount
importance in getting this runoff to the forebay of the ponds. Special conditions
will be placed in the permit regarding the grading and the fact that the swales
must empty into the forebays, and may not cause a bypass or short-circuiting of
the pond.
Response: The plans include inverts of the collection system. The perimeter
access road is built at a high enough elevation to prevent stormwater from flowing
off-site before entering the ponds. The access road serves as a levee. The only
outlet off the property is through the ponds.
5:\PROJECTS\00109.80\Admin\NCDENR questions.doc
Boggs Paving, Inc.
Leland Asphalt Plant 11'E CE I
Brunswick County, North Carolina
Stormwater Narrative MAY 2 5 2000
Submitted to:
NCDENR—Division of Water Quality DW@
March 12, 2000 PROJ # 5k)3 00(>52`
Revised May 25, 2000
Stormwater runoff treatment for the proposed Boggs Paving, Inc. Leland Asphalt Plant
will consist of two wet detention ponds. The Boggs property includes 10.90 acres with
approximately 0.71 acres within the existing CSX Railway right-of-way. This 0.71 acres
drain existing railway beds and is not included in the stormwater calculations. A
perimeter drainage ditch encloses the property intercepting offsite drainage. The property
drains into Banton Branch then into Mill Creek. A summary of the detention pond design
is provided in Tables 1 and 2. The site layout and detention pond elevations and
dimensions are provided in Plan Sheets 1 and 2.
The property was divided into two drainage basins. Drainage Basin #1 drains the front
half of the property along Fletcher Road and includes the plant foundation. Drainage
Basin 41 contains 4.77 acres and is 79% impervious. Sheet flow from the roadway,
parking areas and the plant foundation will be intercepted by grass swales and will flow
to Detention Pond#1. The detention ponds were sized using 90% TSS removal in coastal
counties without a vegetative filter. Forebay sizes are based on 20% of the provided main
basin volume from 1.0 inches of runoff. Pond #1 includes an emergency spillway 0.5-ft
above the peak 1.0-inch runoff pond elevation. Pond #1 has a 1.5-inch orifice that will
drain the 13,334-ft3 temporary volume in 3.1 days. The pond will drain into the existing
Fletcher Road ditch.
Drainage Basin #2 drains the back half of the property along the CSX Railway and
includes the sand and rock aggregate stockpile area. Drainage Basin #2 contains 5.42
acres and is 73% impervious. Sheet flow from the roadway and stockpile area will be
intercepted by grass swales and will flow to Detention Pond #2. The emergency overflow
pipe is 0.5 ft above the peak 1.0-inch runoff pond elevation. Pond #2 has a 1.5-inch
orifice that will drain the 13,973-ft3 temporary volume in 3.2 days. The pond will
discharge into the existing CSX drainage ditch.
The roadways within the property are super-elevated or inclined to drain towards grassed
swales on the inside of the property. A 20-ft grass border will be located on the inside of
the perimeter road and around the detention ponds. Rip-rap protection will be provided at
the detention pond entrances and outfalls. Provided temporary pool volumes exceed
required temporary pool volumes due to the permanent pool surface area requirement
(SA/DA).
SdPROJECTS\00109.80\Hydro\DWQ Stormwater Narrative 5-25-OO.doc
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May 18, 2000
Mr. Drew Boggs
Boggs Paving, Inc.
P. 0. Box 1609
Monroe, NC 28111-1609
RE: Results of Wetland/Upland Evaluation on
11 acre Boggs Asphalt Plant in Leland; NC
Dear Mr. Boggs:
I have completed my wetland evaluation of your 11 acre property near the intersection of
Old Mill Road and Lanvale Road (SR 1438)just west of the"Kicking Mule" Package Store
(see vicinity map). The property is bounded to the north by Old Mill Road; to the east by
an automobile junk yard; to the south by the Seaboard Coast Line Railroad; and to the
west by an undeveloped woodland parcel. The property's boundaries are very easy to
follow since the site has 5-6 foot deep old drainage ditches around its perimeter,
The northern front section of the site where the asphalt plant is located is built upon non-
hydric"Foreston Soils"which have nowetland Inclusions. The southern section has hydric
soils due to its low chroma colors but exhibits very friable drained soil profiles (see
photos). It appears the large old railroad canal has lowered ambient water tables to the
point that the site exhibits no wetland hydrology. In addition, there are no hydrophytic
plants left on the property from site clearing activities which would Indicate obligate
wetland conditions. Therefore, I conclude that no 404 wetlands are present and the 11
acre site does not meet the 1987 Army Corps 3 Parameter wetland definition.
Eoggs Lroup hax:ro4-ht2-112b May 25 2UU) 15:UU F.U7
I have enclosed some pictures of the soils and site conditions and a county soil map and
vicinity map. Should you need anymore information, please feel free to contact me at your
convenience.
Sincerely,
R m S7cv,
Rob Moul, MEM
Environmental Consultant
RM/ghd
CC: E. G. tale
Enclosures:
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State of North Carolina
Department of Environment s
and Natural Resources t �,
Wilmington Regional Office
James B. Hunt,Jr., Governor
Bill Holman, Secretary N C mom wa) E N R
D Quality NORTH CAROLINA DEPARTMENT OF
Division of Water li
Q t ENVIRONMENT AND NATURAL RESOURCES
April 26, 2000
Mr. Carl Boggs, President
Boggs Paving, Inc.
PO Box 1609
Monroe,NC 28 1 1 1-1 609
Subject: ACKNOWLEDGMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 000329
Boggs Asphalt Plant
Brunswick County
Dear Mr. Boggs:
The Wilmington Regional Office received a Stormwater Management Permit Application for Boggs
Asphalt Plant on March 24,2000. 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. As the owner,you are not qualified to make the determination that no wetlands exist on the site,
unless you have had training in the identification of wetlands, and have the Corps official
permission to make this determination. Please have a person who has the education and
experience make this call.
2. Please add the following items to the vicinity map: State Road number of Lanvale Drive (if
any); the direction to Wilmington from the project; the distance from the nearest major road
intersection to the project; and the nearest major road intersection.
3. As discussed at the workshops last year, the forebay volume is supposed to be based on 20%
of the permanent pool volume, the 1" volume. Please revise.
4. Please seal the design calculations.
5. Please report the impervious areas in square feet on the application.
6. Section III of the application for Pond 2 reports the impervious area as 4.8 acres,or 89%percent
impervious, but the calculations and supplement both use 4.43 acres, or 82%. As a result, the
SA/DA ratio is too small, and the surface area provided is deficient. Please correct and submit
revised plans, supplement and calculations as needed.
7. The supplement for Pond 2 indicates that a 2" orifice will be used,but the plans and calculations
show a 1.5" orifice. Please correct and submit revised plans or calculations.
8. In Section III of the supplement form,the sediment removal benchmarks should be reported as
depths,not elevations. Essentially, the way it is written now,you will be cleaning out a 6'deep
pond when the depth is 36'. This should be reported as 4.5', or 75% of 6.
127 Cardinal Dr.Ext.,Wilmington,North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper
Mr. Boggs
April 26, 2000
Stormwater Project No. SW8 000329
----------------------------------------------
9. The surface areas reported for both ponds,are less than what is actually provided,based on the
dimensions shown on sheet C-2. Please accurately report on the supplements what is provided
in the pond, based on the dimensions provided.
10. There is a typo on the dimensions for Pond 1. The length should be 172.5', not 127.5'.
11. The grading of the perimeter grassed collection swales is of paramount importance in getting
this runoff to the forebay of the ponds. Special conditions will be placed in the permit regarding
the grading and the fact that the swales must empty into the forebays, and may not cause a
bypass or short-circuiting of the pond.
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 26, 2000, 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 need additional time to submit the information, please mail or fax your request for a time
extension to the Division at the address and fax number at the bottom of this letter.The request must indicate
the date by which you expect to submit the required information. The Division is allowed 90 days from
the receipt of a completed application to issue the permit.
The construction of any impervious surfaces, other than a construction entrance under an approved
Sedimentation Erosion Control Plan, is a violation ofNCGS 143-215.1 and is subject to enforcement action
pursuant to NCGS 143-215.6A.
Please reference the State assigned project number on all correspondence. Any original documents that
need to be revised have been sent to the engineer or agent. All original documents must be returned or new
originals must be provided. Copies are not acceptable.If you have any questions concerning this matter please
feel free to call me at (910) 395-3900.
Sincerely,
orl'�C
Linda Lewis
Environmental Engineer -
RSS/arl: S:\WQS\STORMWAT\ADDINFO\000329.APR
cc: Linda Lewis
Margaret Gray
127 Cardinal Dr.Ext.,Wilmington,North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper
Date Received reePaid
I P_rmit Number
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may be photocopied for use as an orio=J
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation,individual, etc.who owns the project):
Boggs Paving, Inc .
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
C.A. Boggs, President
3. Mailing Address for person listed in item 2 above:
P.O. Box 1609
city: Monroe State: NC zip:_ 28111 -1609__
Telephone Number: f 704 1 289-8482
4. Project Name (subdivision,facility, or establishment name-should be consistent with project name on
plans,specifications,letters, operation and maintenance agreements,etc.):
Boggs Asphalt Plan - Plana
5. Location of Project(street address):
Fletcher Road NE @ Lanvale In rsPrtinn
City:
Leland, NC county: Brunswick
6. Directions to project(from nearest major intersection):
From Wilmington on US 74, exit at Leland south on Lanvale Road
for 0 .25 miles _left onto Flet h r Drive fnr 0 2 milPr to cite
7. Latitude: 34° 15 Longitude: 78°03 ' 00° of project
ro'ect
S. Contact person who can answer questions about the project:
Name: Margaret Gray Telephone Number: ( 910 ) 762-4200
II. PERMIT INFORMATION:
I. Specify whether project is (check one): X New Renewal Modification
Form SWU-101 Version 3.99 Page I of 4
2. If this application is being sub tted as the result of a renewal or modification to an existing permit,list the
existing permit number "?H and its issue date (f known) 11/A
3. Specify the type of project (check one):
_Low Density X High Density _Redevelop _General Permit _Other
4. Additional Project Requirements (check applicable blanks):
_CAMA Major X Sedimentation/Erosion Control _404/401 Perm t _X_NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
M. PROJECT INFORMATION
1. In the space provided below,summarize how stormwater will be treated. Also attach a detailed narrative
(one to two pages) describing stormwater management for the project.
Stormwater will be routed to one of two wet detention nnnrie _
The ponds will hold the first 1 n inches of rain and
detain amounts above 1 .0 inches before discharging offsite .
2. Stormwater runoff from this project drains to the Cape Fear River basin.
3. Total Project Area: 10 • 90 acres 4. Project Built Upon Area: 78 . 7
(0. 71 Ac in CSX ROW) 2
5. How many drainage areas does the project have?
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project,attach an additional sheep with the information for each area provided in the same format as below.
Eases rxEort o M : e, r rDrainagekAea51 s .Dramage AL2a2x
..M2`.za
Receiving Stream Name Banton Branch Banton
Receiving Stream Class SW SW
Drainage Area 4 .77 Ac 5 .42 A
Existing Impervious*Area 0 .0 AC 0 .0 Ac.
Proposed Impervious"Area 3 . 78 Ac 4 . 80 Ac
%Impervious*Area(total) 80% 89%
�. � t � yi<
Irrt ervtous Surface4rea "� �. 'Dramage.Asea�1 � , ,`���'�` Dr�arnua eArea2r z a „
On-site Buildings 0.25 Ac 0 .0 Ac
On-site Streets 0 . 93 AC 0 . 48 Ac -
On-site Parking 2 . 60 AC 4 . 32 AC
On-site Sidewalks 0 .0 Ac 0 .0 Ac
Other on-site 0 .0 Ac 0 .0 Ac
Off-site 0 .0 AC 0 .0 Ac
Total: 3 .78 Ac Total: 4 .80 AC
Impervious area is defined as the built upon area including, but not limited to,buildings,roads,parking areas,
sidewalks,gravel areas,etc.
Form SWU-101 Version 3.99 Page 2 of 4
7. How was the off-site impervious area listed above derived? No off-site drainage .
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a
table listing each lot number,size and the allowable built-upon area for each lot must be provided as an
attachment.
1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit
number as issued by the Division of Water Quality. These covenants may
not be changed or deleted without the consent of the State.
2. No more than 373, 744 square feet of any-lot shall be covered by structures or impervious materials.
Impervious materials include asphalt,gravel, concrete,brick,stone,slate or similar material but do not include wood
decking or the water surface of swimming pools.
3. Swales shall not be filled in,piped,or altered except as necessary to provide driveway crossings.
4. Built-upon area in excess of the permitted amount requires a state stormwater management permit modification prior to
construction.
5. All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be performed in a manner that maintains the
integrity and performance of the system as permitted.
By your signature below,you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and
persons claiming under them,that they will run with the land, that the required covenants cannot be changed or
deleted without concurrence from the State,and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s)listed below must be submitted for
each BMP specified for this project. Contact the Stormwater and General Permits Unit at(919) 733-5083 for the
status and availability of these forms.
Form SWU-102 Wet Detention Basin Supplement
Form SWU-103 Infiltration Basin Supplement
Form SWU-104 Low Density Supplement
Form SWU-105 Curb Outlet System Supplement
Form SWU-106 Off-Site System Supplement
Form SWU-107 Underground Infiltration Trench Supplement
Form SWU-108 Neuse River Basin Supplement
Form SWU-109 Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of
VI. SUBMITTAL REQUIREMENTS
Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
1. Please indicate that you have provided the following required information by initialing in the space
provided next to each item.
Ip t�$Is
• Original and one copy of the Stormwater Management Permit Application Form J{�
• One copy of the applicable Supplement Form(s) for each BMP
• Permit application processing fee of$420 (payable to NCDENR)
• Detailed narrative description of stormwater treatment/management
• Two copies of plans and specifications,including:
-Development/Project name
-Engineer and firm
-Legend
-North arrow
-Scale
-Revision number g date
-Mean high water line
-Dimensioned property/project boundary
-Location map with named streets or NCSR numbers
-Original contours,proposed contours,spot elevations,finished floor elevations
-Details of roads,drainage features,collection systems, and stormwater control measures
-Wetlands delineated,or a note on plans that none exist
-Existing drainage(including off-site),drainage easements,pipe sizes,runoff calculations
-Drainage areas delineated
-Vegetated buffers (where required)
VIL AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf,please complete this section.
Designated agent(individual or firm): W.K. Dickson , Attn . Margaret Gray
Mailing Address: 909 Market Street
city: Wilmington State: NO Zip:?8401
Phone: ( 910 762-4200 Fax: 1 910 ) .762-4201
VIII. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item 2) C . A. RnQQ S
certify that the information included on this permit application form is, to the best of my knowledge,correct and
that the project will be constructed in conformance with the approved plans,that the required deed restrictions
and protective covenants will be recorded,and that the proposed project complies with the requirements of 15A
NCAC 2H .1000.
0
Signature:��t�(^l [ .
Y , � � Date: J-2f-OCJ
Form SWU-101 Version 3.99 Page 4 of 4
Permit No. SwF 000 3 ZC1
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources WKD 00109 .80
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review•
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name: Boggs Asphalt Pldnt - Leland
Contact Person: Margaret Gray Phone Number: ( 910 ) 762-4200
For projects with multiple basins, specify which basin this worksheet applies to: #1
elevations
Basin Bottom Elevation 35 . 5 8. (floor of the basin)
Permanent Pool Elevation ft. (elevation of the orifice)
Temporary Pool Elevation 44-5 43.eft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 9 ,577 sq. ft. (water surface area at the orifice elevation)
Drainage Area 4 . 77 ac. (on-site and off-site drainage to the basin)
Impervious Area 3 . 78 ac. (on-site and off-site drainage to the basin)
volumes 33 423
Permanent Pool Volume 6JtOD cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume ft. (volume detained above the permanent pool)
Forebay Volume 2 , 951 cu. ft. (approximately 20% of total volume)
Other parameters
SA/DAI 4 . 6% (surface area to drainage area ratio from DWQ table)
Diameter of Orifice 1 .5 in. (2 to 5 day temporary pool draw-down required)
Design Rainfall 1 .0 in.
Design TSS Removal 2 90% % (minimum 85% required)
Form SWU-102 Rev 3.99 Page I of 4
Footnotes:
I When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
'- In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
907o TSS removal. The NCDENR BMP manual provides design tables for both 85%TSS removal and 90%TSS removal.
II. 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 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. If a requirement has not been met, attach justification.
Applicants Initials
1�1_ky - a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
N4-- b. The forebay volume is approximately equal to 20% of the basin volume.
A-4/ c. The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
e. If required, a 30-foot vegetative filter is provided at the outlet (include non-erosive flow
calculations)
f. The basin length to width ratio is greater than 3:1.
The basin side slopes above the permanent pool are no steeper than 3:1.
It. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
i. Vegetative cover above the permanent pool elevation is specified.
U" j. A trash rack or similar device is provided for both the overflow and orifice.
k. A recorded drainage easement is provided for each basin including access to nearest right-
of-way.
1. If the basin is used for sediment and erosion control during construction, clean out of the
Al basin is specified prior to use as a wet detention basin.
/w in. A mechanism is specified which will drain the basin for maintenance or an emergency.
M. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 does 0 does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does N does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4
Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality
(i.e. stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 37 .0 feet in the main pond, the sediment shall be removed.
\
When the permanent pool depth reads 39 . 25 feet in thefbrebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
p Permanent Pool Elevation 41 • 5
Sediment Re oval El. 39 . 25 7 75 0 �-
- Sediment Removal Elevation 37 .0 F25%
BottomEle ation 38 . 5 C/o
---------------------------------------------Bottom Elevation 35 • 5
FOREBAY MA
IN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
Form SWU-102 Rev 3.99 Page 3 of 4
7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
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.
Print name: C.A. ( Drew ) Boggs III
'title: President, Boggs Paving, Inc .
Address: P.O. Box 1609 , Monroe, NC 28111 -1609
Phone: 704-289-8482
/�
Signature: / �2� ,.z/-)
Date:
Note: The legally responsible party should not be a homeowners association unless more than 50%of the lots have been sold and
a resident of the subdivision has been named the president.
I, /J1 Qne� 5 �k?dW i- a Notary Public for the State of )-)Ir `Fk �tifi.�L
County of hfdd) do hereby certify that Coe A -40
personally appeared before me this �9 OtL day of &-a r-r'L, 2600 , and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
SEAL
My commission expiresn
Form SWU-102 Rev 3.99 Page 4 of 4
Permit No. SW E CXX_)329
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources WKD 00109 . 80
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review:
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name: Boggs Asphalt Plant - Leland
Contact Person: Margaret Gray Phone Number: (910 1 762-4200
For projects with multiple basins, specify which basin this worksheet applies to: #t 2
elevations
Basin Bottom Elevation 34 .5 ft. (floor of the basin)
Permanent Pool Elevation 40 . 5 ft. (elevation of the orifice)
Temporary Pool Elevation 42 .0 ft. (elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area 11 ,097 sq. ft. (water surface area at the orifice elevation)
Drainage Area 5 . 42 ac. (on-site and off-site drainage to the basin)
Impervious Area 4 .43 ac. (on-site and off-site drainage to the basin)
volumes
Permanent Pool Volume 40,395 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 18 , 747 cu. ft. (volume detained above the permanent pool)
Forebay Volume 3,363 cu. ft. (approximately 20% of total volume)
Other parameters
SA/DAl 4 . 7 (surface area to drainage area ratio from DWQ table)
Diameter of Orifice 2 .0 in. (2 to 5 day temporary pool draw-down required)
Design Rainfall 1 .0 in.
Design TSS Removal z 90 % (minimum 85% required)
Form SWU-102 Rev 3.99 Page 1 of 4
Footnotes:
l When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious %and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2 In the 20 coastal counties,the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
9017c TSS removal. The NCDENR BMP manual provides design tables for both 85%TSS removal and 90%TSS removal.
H. 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 211 .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Applicqnts Initials
r� a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
ti�U✓ b. The forebay volume is approximately equal to 20% of the basin volume.
A� c. The temporary pool controls runoff from the design storm event.
t/Y/4�_ d. The temporary pool draws down in 2 to 5 days.
e. If required, a 30-foot vegetative filter is provided at the outlet(include non-erosive flow
calculations)
f. The basin length to width ratio is greater than 3:1.
M g. The basin side slopes above the permanent pool are no steeper than 3:1.
It. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail),
itl/� i. Vegetative cover above the permanent pool elevation is specified.
r!/ ' j. A trash rack or similar device is provided for both the overflow and orifice.
k. A recorded drainage easement is provided for each basin including access to nearest right-
nn� of-way.
1. If the basin is used for sediment and erosion control during construction, clean out of the
"Y basin is specified prior to use as a wet detention basin.
in. A mechanism is specified which will drain the basin for maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 does );l does not incorporate a vegetated filter at the outlet.
This system (check one) 0 does b does not incorporate pretreatment other than a forebay.
Form SWU-102 Rev 3.99 Page 2 of 4
Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs
within 2 to 5 days as designed.
2. Repair eroded areas immediately, re-seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to
maintain proper functioning.
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed
of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality
(i.e. stockpiling near a wet detention basin or stream, etc.).
The measuring device used to determine the sediment elevation shall be such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
When the permanent pool depth reads 36 .0 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads 38 . 25 feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)
p Permanent Pool Elevation 40 . 5
Sediment Re oval El. 38 . 25 75 0
-------------- - Sediment Removal Elevation 36 . 0 L25
Bottom Etc anon 37 . 5 % --------------------------------------------- --
Bottom Elevation 34 . 5
FOREBAY MAIN POND
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to.perform maintenance, the flushing of sediment
through the emergency drain shall be minimized to the maximum extent practical.
Forrn SWU-102 Rev 3.99 Page 3 of 4
7. All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
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.
Print name: C .A. ( Drew ) Boggs III
Title: President, Boggs Paving, Inc .
Address: P.O. Box 1609 , Monroe, NC 28111 -1609
Phone: 704-289-8482
Signature: 42/L �a 6e;»
Date: j-Z1 -oo
Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and
-��a resident of the subdivision has been named the president.
I, ✓f 4'e— s B2uwrt , a Notary Public for the State of i-)of`l'L) CLt20linc ,
County of 1—)t4v AQ-oyF e- do hereby certify that C'a r 14 . &w 1, 22
personally appeared before me this a Vtt day of 121a-cjn Zoo o , and acknowledge the due
execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal,
SEAL 44"1"-
My commission expireseLd*
Form SWU-102 Rev 3.99 Page 4 of 4
+ r
a 21i`
Date Received Fee Paid Permit Number
3-2 -D0 1 4zolif 0031Z5 SW8 000329
State of North Carolina
Department of Environmental and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This farm may be photocopied for use as an original
L GENERAL INFORMATION
1. Applicants name(specify the name of the corporation, individual, etc. who owns the project):
Boggs Paving, Inc.
2. Print Owner/Signing Official's name and title(person legally responsible for facility and compliance):
C.A. Boggs, President
3. Mailing Address for person listed in Item 2 above:
P.O. Box 1609
City: Monroe State: NC Zip: 28111-1609
Telephone Number: ( 704 ) 289-8482
4. Project Name (subdivision, facility, or establishment name-should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
Boggs Asphalt Plant- Leland
5. Location of Project(street address):
Fletcher Road NE @ Lanval Intersection
City: Leland County: Brunswick
6. Directions to project(from nearest major intersection):
From Wilmington west on US 74, exit at Leland south on Lanvale Road for 0.25 miles, left onto
Fletcher Drive for 0.2 miles to site on left.
7. Latitude: 34015'00" Longitude: 78003'00" of project.
8. Contact person who can answer questions about the project:
Name: Margaret Grav Telephone Number( 910 ) 762-4200
II. PERMIT INFORMATION:
1. Specify whether project is (check one): X_New Renewal Modification
Form SWU-101 Version 3.99 Pagel of4
2. If this application is being submitted as the result of a renewal or modification to an existing permit,
list the existing permit number N/A and its issue date (if known) N/A
3. Specify the type of project(check one):
_Low Density X High Density _Redevelop _ General Permit Other
4. Additional Project Requirements (check applicable blanks):
_CAMA Major X Sedimentation/Erosion Control 404/401 Permits X NPDES Sormwater
Information on required state permits can be obtained by contacting the Customer Service Center at I-
877-623-6748
M. PROJECT INFORMATION
1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed
narrative (one to two pages) describing stormwater management for the project.
Stormwater will be routed to one of two wet detention ponds. The ponds will hold the first
1.0 inches of rain and detain amounts above 1.0 inches before discharging offsite.
2. Stormwater runoff from this project drains to the Cape Fear River Basin.
3. Total Project Area: 474,800_sq. ft. 4. Project Built Upon Area 71.2%
(Please note 30,930 sq. ft. of property within CSX Transportation ROW)
5. How many drainage areas does the project have? 2
6. Complete the following information for each drainage area. If there are more than two drainage areas
in the project, attach and additional sheet with the information for each area provided in the same
format as below.
Basin Information Drainage Area 1 Drainage Area 2
Receiving Stream Name Banton Branch Banton Branch
Receiving Stream Class SW SW
Drainage Area 207,800 sq. ft. 236,163 sq.ft.
Existing Impervious*Area 0.0 sq. ft. 0.0 sq. ft.
Proposed Impervious* Area 164,700 sq. ft. 173,393 sq. ft.
% Impervious* Area (Total) 79.3 % 73.4%
Impervious* Surface Area Drainage Area 1 Drainage Area 2
On-Site Buildings 10,900 sq. ft. 0.0 sq. ft.
On-Site Streets 40,500 sq. ft. 20,900 sq. ft.
On-Site Parking 113,300 sq. ft. 152,493 sq. ft.
On-Site Sidewalks 0.0 sq. ft. 0.0 sq. ft.
Other On-Site 0.0 sq. ft. 0.0 sq. ft.
Off-Site 0.0 sq. ft. 0.0 sq. ft.
Total: 164,700 sq. ft. Total: 173,393 sq. ft.
*hnpervious area is defined as the built upon area including, but not limited to, buildings, roads,parking areas,
sidewalks, gravel areas, etc.
Form SWU-101 Version 3.99 Page 2 of
7. How was the off-site impervious area listed above derived? NO off-site d rd i n age .
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
The following italicized deed restrictions and protective covenants are required to be recorded for all
subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a
table listing each lot number,size and the allowable built-upon area for each lot must be provided as an
attachment.
I. The following covenants are intended to ensure ongoing compliance with state stormwater management permit
number NSA as issued by the Division of Water Quality. These covenants may
not be changed or deleted without the consent of the State.
'P
2. No more than 373, 744 square feet of any-lot shall be covered by structures or impervious materials.
Impervious materials include asphalt,gravel,concrete,brick,stone, slate or similar material but do not include wood
decking or the water surface of swimming pools.
3. Swales shall not be filled in,piped,or altered except as necessary to provide driveway crossings.
4. Built-upon area in excess of the permitted amount requires a state stormwater management permit modification prior to
construction.
S 5. All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control
system. These connections to the stormwater control system shall be performed in a manner that maintains the
integrity and performance of the system as permitted.
By your signature below,you certify that the recorded deed restrictions and protective covenants for this project
shall include all the applicable items required above, that the covenants will be binding on all parties and
persons claiming under them, that they will run with the land,that the required covenants cannot be changed or
deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot.
V. SUPPLEMENT FORMS
The applicable state stormwater management permit supplement form(s) listed below must be submitted for
each BMP specified for this project. Contact the Stormwater and General Permits Unit at(919)733-5083 for the
status and availability of these forms. - -- ^" 1
Form SWU-102 Wet Detention Basin Supplement
Form SWU-103 Infiltration Basin Supplement
Form SWU-104 Low Density Supplement
Form SWU-105 Curb Outlet System Supplement
Form SWU-106 Off-Site System Supplement
Form SWU-107 Underground Infiltration Trench Supplement
Form SWU-108 Neuse River Basin Supplement
Form SWU-109 Innovative Best Management Practice Supplement
Form SWU-101 Version 3.99 Page 3 of 4
VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ).
A complete package includes all of the items listed below. The complete application package should be
submitted to the appropriate DWQ Regional Office.
1. Please indicate that you have provided the following required information by initialing in the space
provided next to each item. t
Ffe
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each BMP
• Permit application processing fee of$420 (payable toNC
• Detailed narrative description of stormwater treatment/management
• Two copies of plans and specifications,including: Aw
-Development/Project name
-Engineer and firm
-Legend
-North arrow
-Scale
-Revision number&date
-Mean high water line
-Dimensioned property/project boundary
-Location map with named streets or NCSR numbers
-Original contours,proposed contours,spot elevations,finished floor elevations
-Details of roads, drainage features,collection systems,and stormwater control measures
-Wetlands delineated,or a note on plans that none exist
-Existing drainage (including off-site),drainage easements,pipe sizes,runoff calculations
-Drainage areas delineated
-Vegetated buffers (where required)
VIL AGENT AUTHORIZATION
If you wish to designate authority to another individual or firm so that they may provide information on your
behalf,please complete this section.
Designated agent(individual or firm): W.K. Dickson , Attn . Margaret Gray
Mailing Address: 909 Market Street
city: Wilmington State: NC zip:28401
Phone: ( 910 ) 762-4200 Fax: ( 910 ) _ 762-4201
VIII. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item 2) A Rnggs
certify that the information included on this permit application form is, to the best of my knowledge,correct and
that the project will be constructed in conformance with the approved plans, that the required deed restrictions
and protective covenants will be recorded,and that the proposed project complies with the requirements of 15A
NCAC 2H .1000.
Signature: a l C - Date: T 2�-0D
Form SWU-101 Version 3.99 Page 4 of 4
Fk WK
p OICKSON
E,.,u4«s•Platers•Surveyors LETTER OF TRANSMITTAL
909 Market Street
Wilmington,NC 28401
I910p62-4200 • FAX(910)7r2-4201 �
TO: NCDENR/DWQ DATE: 3/24/00 JOBNO.: 00109.80(l)
127 Cardinal Dr Est RE: Boggs Paving—Leland Asphalt Plant
Wilmington, NC 28405 Brunswick County
ATTENTION: Linda Lewis
MAR G 4 ""
We are sending you �s Attached F7 Under separate cover
VIA: Overnight F-1 Regular Mail F—] Pick-up 0 Courier
The following items: Shop Drawings Prints Plans Samples
Specifications Copy of Letter xChange Order
COPIES DATE NO. DESCRIPTION
2 sets Stormwater Plan&Stormwater Details
2 sets Stormwater Narratives
2 sets Stornnvater Peanut Applications & Supplements
2 sets Stormwater Calculations
1 $420.00 application fee
THESE ARE TRANSMITTED as checked below:
eFor Approval 8 As requested e Approved as submitted e Returned lot corrections
For your use For review and comment Approved as noted
Remarks:
Linda—enclosed stormwater documents for permitting. Do not hesitate to call if you need anything else.Thanks,
G V
COPY TO: File, Drew Boggs SIGNED: Margaret Gray