SW8000305_Historical File_20000403

State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Division of Water Quality
Mr. Derek Dunn, Owner
DPD Team Concrete
PO BOX 2277
Greenville, NC 27836
Dear Mr. Dunn:
Mo
NCDENR
NORTH CAROLINA DEPARTMENT or
ENVIRONMENT AND NATURAL RESOURCES
April 3, 2000
Subject: Permit No. SW8 000305
DPD Team Concrete-Shallotte Ready Mix Concrete Plant
Low Density Stormwater Project
Brunswick County
The Wilmington Regional Office received a complete Stormwater Management Permit Application for DPD Te
Concrete-Shallotte Ready Mix Concrete Plant on March 29am, 2000. Staff 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 000305 dated April 3, 2000, for the construction of DPD Team
Concrete-Shallottc Ready Mix Concrete Plant.
This permit shall be effective from the date of issuance until rescinded and shall be subject to the conditions and
limitations as specified therein, and does not supersede any other agency permit that may be required.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an
adj udicatory 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 either Noelle
Lutheran or me at [phone].
Sincerely,
Lr
ck Shiver
Water Quality Regional Supervisor
RSS/nmh, S:1WQSISTORMWATIPERMIT1000305.APR
cc: Keith Bulla
Delaney Aycock, Brunswick County Inspections
Wilmington Regional Office
Central Files
Noelle Lutheran
127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395,3900 FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper

State Stormwater Management Systems
Permit No. SW8 000305
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
LOW 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
DPD Team Concrete
DPD Team Concrete-Shallotte Ready Mix Concrete Plant
Brunswick County
FOR THE
construction, operation and maintenance of a 3 0% low density development in compliance with the provisions of 15A NCAC
211.1000 (hereafter referred to as the "stormwater rules") and the approved stormwatermanagement 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 for DPD Team Concrete-Shallotte Ready Mix Concrete Plant.
The Permit shall be effective from the date of issuance until rescinded and shall be subject to the following specific conditions
and limitations:
I. DESIGN STANDARDS
1. This permit covers the construction of 42,688 square feet of built -upon area.
2. The overall tract built -upon area percentage for the project must be maintained at 3 0%, as required by Section .1005
of the stormwater rules.
3. Approved plans and specifications for projects covered by this permit are incorporated by reference and are
enforceable parts of the permit.
4. This project proposes a curb outlet system. Each designated curb outlet swale shov�n an
on the approved pl
must be maintained at a minimum of 100' long with 5:1 (H:V) side slopes or flatter, have a longitudinal
slope no steeper than 5%, carry the flow from a 10 year storm in a non -erosive manner, and maintain a
dense vegetated cover.
5. No piping is allowed except:
a. That minimum amount necessary to direct runoff beneath an impervious surface such as a road.
b. That minimum amount needed under driveways to provide access.
2

State Stormwater Management Systems
Permit No. SW8 000305
II. SCHEDULE OF COMPLIANCE
Projects covered by this permit will maintain a minimum 30 foot wide vegetative buffer between all impervious areas
and surface waters.
2. The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable built -upon
area.
3. 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.
4. Prior to the sale of this project, in whole or in part, the following deed restrictions must be recorded with the Office
of the Register of Deeds and submitted to DWQ:
"The built -upon area is limited to 42,688 square feet. Construction of additional built -upon area will require
a permit modification."
"Construction of additional impervious areas such that low density requirements are no longer met must be
submitted to DWQ and a permit modification must be issued prior to construction. An engineered system
will be required to collect and treat the runoff from all built -upon area associated with the project, including
that area permitted under the low density option."
"Filling in or piping of any vegetative conveyances (ditches, swales, etc.) associated with this development
except for average driveway crossings, is strictly prohibited by any persons."
"A minimum of 30' of vegetated buffer area shall be provided between surface waters and all impervious
surfaces."
Filling in or piping of any vegetative conveyances (ditches, swales, etc.) associated with the permitted development,
except for average driveway crossings, is strictly prohibited by any persons.
6. Projects within CAMA's Area of Environmental Concern (AEC) are subject to a reduction of the permitted amount
of built -upon area due to CAMA jurisdiction within the AEC.
7. A copy of the recorded restrictions must be received by this Office within 30 days of the date of sale.
The following items will require a modification to the permit. Revised plans, specifications and calculations must
be permitted prior to the permittee beginning construction on the modification:
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 permittee, for which Sedimentation and Erosion Control Plan approval was sought.
f. Filling in, altering or piping any vegetative conveyance shown on the approved plan.
9. The Director may determine that other revisions to the project should require, a modification to the permit.
10. Swales and other vegetated conveyances shall be constructed in their entirety, vegetated, and be operational for their
intended use prior to the construction of any built -upon surface.
11 During construction, erosion shall be kept to a minimum and any eroded areas of the swales or other vegetated
conveyances will be repaired immediately.

State Stormwater Management Systems
Permit No. SW8 000305
12. The permittee shall at all times provide the operation and maintenance necessary to operate the permitted stormwater
management systems at optimum efficiency to include:
a. Inspections
b Sediment removal.
C. Mowing, and revegetating of the side slopes.
d. Immediate repair of eroded areas.
e. Maintenance of side slopes in accordance with approved plans and specifications.
13. Within 30 days of completion of the project, the permittee shall certify in writing that the project has been
constructed in accordance with the approved plans.
14. The permittee shall submit all information requested by the Director or his representative within the time frame
specified in the written information request.
III. GENERAL CONDITIONS
1. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to an
enforcement action by the Division of Water Quality, in accordance with North Carolina General Statutes 143-
215.6A to 143-215.6C.
2. The permit issued shall continue in force and effect until revoked or terminated.
3. 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.
4. The issuance of this permit does not prohibit the Director from reopening and modifying the permit, revoking and
reissuing the permit, or terminating the permit as allowed by the laws, rules, and regulations contained in Title 15A
of the North Carolina Administrative Code, Subchapter 2H.1000; and North Carolina General Statute 143-215.1 et.
al.
5. The permit is not transferable to any person except after notice to and approval by the Director. The Director may
require modification or revocation and reissuance of the permit to change the name and incorporate such other
requirements as may be necessary. A formal permit request must be submitted to the Division of Water Quality
accompanied by the appropriate fee, documentation from both 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.
6. The permittee grants permission to DENR Staff to enter the property for the purpose of inspecting all components
of the stormwater management facility.
7. The permittee shall notify DWQ of any mailing address changes within 30 days of such change.
8. 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.
Permit issued this the 3rd day of April, 2000.
NORTaCAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
--_1.3
4a,
------------------ - - ------
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 000305

Permit No.
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
CURB OUTLET SYSTEM SUPPLEMENT
FOR LOW DENSITY DEVELOPMENT WITH CURB AND GUTTER
This form may be photocopied for use as an original
DWQ Stormwater Management Plan Review:
A complete stormwater management plan submittal includes a stormwater management permit application, a
curb outlet system supplement, a low density supplement, desiL7n calculations, and plans and specifications
showing all stormwater conveyances and curb outlet details.
I. PROJECT INFORMATION
Project Name : nPn Team Cnnrrata Shal 1 ntta P1 ant
Contact Person:_ KEITH P. BULLA, P.E. Phone Number: ( 910 ) 452-5961
Curb outlets to (check one): 2 Swale 0 Vegetated Area
H. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the North Carolina Administrative Code Section
15A NCAC 211.1008.
Initial in the space provided to indicate that the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent on the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
�s Initials
a.
b.
v
Curb outlets direct flow to a swale or vegetated area.
Swales or vegetated areas receiving curb outlet flow are designed to carry, at a minimum,
the peak flow from the 10-year storm.
c. Flow velocity is non -erosive for peak flow from the 10-year storm event.
d. Longitudinal slope of the swale or vegetated area does not exceed 5%.
e. Side slopes of the swale or vegetated area are no steeper than 5:1 (horizontal to vertical).
f. Length of swale or vegetated area is > 100 feet.
g. The system takes into account the run-off at ultimate built -out potential from all surfaces
draining to the system (delineate drainage area for each swale).
Q& h. Swales are located in recorded drainage easements.
i. Grass type(s) for permanent vegetative cover specified on detail.
j. Swale detail provided on plans.
Force SWU-105 Ver 3.99 Page 1 of 3

III. DESIGN INFORMATION � .
Complete the following table. If additional space is needed the information should be provided in the same
format as Table 1 and attached to this form. Rainfall intensity data can be found in Appendix 8.03 of the State
of North Carolina Erosion and Sediment Control Planning and Design Manual.
Table 1. Swale Design Information
Swale No.
Drainage
Area ac:
Impervious
Area {ac
Grassed
Area ac
C .
Q
cfs
V..
s
V;; ,
f s : -
Flow
Depth ft
1
.1
.72
2.81
3.5
1.
.58
2
2.15
3.5
1.12
.62
3
1
.35
.41
1.4
3.5
1.53
.43
4
9-11
3.5
1.32
0
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Form SWU-105 Ver 3.99 Page 2 of 3

III. CURB OUTLET SYSTEM MAINTENANCE REQUIREMENTS
Mowing will be accomplished as needed according to the season. Grass height will not exceed six inches
at any time.
2. Swales will be inspected monthly or after every runoff producing rainfall event for sediment build-up,
erosion, and trash accumulation.
3. Accumulated sediment and trash will be removed as necessary. Swales will be reseeded or sodded
following sediment removal.
4. Eroded areas of the swales will be repaired and reseeded. Swales will be revegetated as needed and in a
timely manner based on the monthly inspections.
5. Catch basins, curb cuts, velocity reduction devices, and piping will be inspected monthly or after every
significant runoff producing rainfall event. Trash and debris will be cleared away from grates, curb cuts,
velocity reduction devices and piping.
6. Swales will not be altered, piped, or filled in without approval from NCDENR Division of Water Quality.
I acknowledge and agree by my signature below that I am responsible for the performance of the six
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 parry.
Print Name and Title: Derek Dunn. President
Address: :.
Note: The legally respon mile 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, n , / �h Lk e- , a Notary Public for the State of AdrA e-4ra1i� -R_ , County of
do hereby certify that D C 1 e-K _P J -j —3 personally appeared before me this
_n day of 6 u r a�04 a , and acknowledge the due execution of the forgoing infiltration basin
maintenance requirements. Witnes y hand and official seal,
,. r•r,, �� OFFICIAL SEAL"
Notary Public, North Carolina
¢ County of Pitt
.,_,.• Cindy H. Rhue J
mission Ex roes 4�9%240410
My commission expires /9
Form SWU-105 Ver 3.99 Page 3 of 3

Permit No.
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMVlIATER MANAGEMENT PERMIT APPLICATION FORM
LOW DENSITY SUPPLEMENT
This form may be photocopied for use as an original
A low density project is one that meets the appropriate criteria for built upon area and transports stormwater
runoff primarily through vegetated conveyances. Low density projects should not have a discrete stormwater
collection system as defined by 15A NCAC 2H .1002(18). Low density requirements and density factors can
be found in 15A NCAC 2H .1005 through .1007.
I. PROJECT INFORMATION
Project Name : nPn Team Concrete Sha1 1 otte Plant
Contact Person: _ KEITH P. BULLA, P.E. Phone Number: ( 91n ) 452-5861
Number of Lots: i Allowable Built Upon Area Per Lot*: 30z
*If lot sizes are not uniform, attach a table indicating the number of lots, lot sizes and allowable built upon
area for each lot. The attachment must include the project name, phase, page numbers and provide area
subtotals and totals.
II. BUILT UPON AREA
See the Stormwater Management Permit Application for specific language that must be recorded in the deed
restrictions for all subdivisions.
For uniform lot sizes, complete the following calculation in the space provided below where:
• SA Site Area - the total project area above Mean High Water. Wetlands may be excluded when the
development results in high density pockets.
• DF Density Factor - the appropriate percent built upon area divided by 100.
• RA Road Area - the total impervious surface occupied by roadways. .
• OA Other Area - the total area of impervious surfaces such as clubhouses, tennis courts, sidewalks, etc.
• No. Lots - the total number of lots in the subdivision.
• BUA/Lot - the computed allowable built upon area for each lot including driveways and impervious
surfaces located between the front lot line and the edge of pavement.
Form SWU-104 Rev 3.99 Page 1 of 2

Calculation:
SA = 209,296 Ft (4.8Ac)
DF = 30/100 = .3
RA = .52Ac
OA = .36Ac
Number of Lots = 1
(SA x DF) - RA - OA = BUA
No. Lots Lot
(4.8 x .3) — .52 — .36 = BUA/Lot
1
III. REQUIRED ITEMS CHECKLIST
.56Ac = BUA/Lot
or 24,394 Ft2 greater than 4200 Ft2 OK
Initial in the space provided to indicate that the following requirements have been met and supporting
documentation is provided as necessary. If the applicant has designated an agent on the Stormwater
Management Permit Application Form, the agent may initial below.
Cvis Initials
a. A 30 foot vegetative buffer is provided adjacent to surface waters. Projects in the Neuse
River basin may require additional buffers.
QV& b. Deed restriction language as required on form SWU-101 shall be recorded as a restrictive
covenant. A copy of the recorded document shall be provided to DWQ within 30 days of
platting and prior to sale of any lots.
c. Built upon area calculations are provided for the overall project and all lots.
N.4 A d. Project conforms to low density requirements within the ORW AEC (if applicable).
[15A NCAC 2H .1007(2)(b)]
Form SWU-104 Rev 3.99 Page 2 of 2

Date Received
Fee Paid
Permit Number
2;;2 e
c�
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 original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Derek Dunn
3. Mailing Address for person listed in item 2 above:
P.O. Box 2277
City:_ Graanvi 1 1 P State` No. zip 27836
Telephone Number: ( 252 ) 756-5155
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
5. Location of Project (street address):
Shallntta Tndiiatrial Park, X-C- Hy3T 130
City: �hallntta County: Brunswick
6. Directions to project (from nearest major intersection):
From i1S 17 in Shal l ntta p takp- Nr Hi ghwag 1 'ln LTPat frnir mi 1 Pg, Shallotte
Industrial Park on right.
7. Latitude: 719 ° - 2 7' Longitude: 3 '4° 991 - In" of project
8. Contact person who can answer questions about the project:
Name: xei t_h Bul 1 a Telephone Number: ( 91 n ) 452-5R61
H. PERMIT INFORMATION:
1. Specify whether project is (check one): X New Renewal Modification
Form SWU-101 Version 3.99 Page 1 of 4

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number NIA and its issue date (if known)
3. Specify the type of project (check one):
_Low Density High Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
�CAMA Major X Sedimentation/Erosion Control _404/401 Permit X NPDES Stormwater
Information on required state permits can be obtained by contacting the Customer Service Center at
1-877-623-6748.
III. 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 to be treated using vegetative swales. A sedimentation basin is to be
construced to meet stormwater NPDES requirements.
2. Stormwater runoff from this project drains to the lumber River basin.
3. Total Project Area: 4.8 acres
5. How many drainage areas does the project have? 1
4. Project Built Upon Area: 20 %
6. Complete the following information for each drainage area. If there are more than two drainage areas in the
project, attach an additional sheet with the information for each area provided in the same format as below.
Sasm information
D tainaSe Area 1
I,)rainage Area I
Receiving Stream Name
Receiving Stream Class
r SW
Drainage Area
Existing Impervious* Area
Proposed Im ervious*Area
% Impervious* Area (total)
20.4%
bus` Sq#OW Area
Ira rage Am 1
menage Area 2
On -site Buildings
4200 F t 2
On -site Streets
72,650 Ft 2
On -site Parking
065 Ft 2
On -site Sidewalks
336 2
Other on -site
_Ft
6 4 3 F t 2
Off -site
0
Total: 42,688 Ac.
Total:
* 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? N/A
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 squarefeet 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 drivezary 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 forms) listed below must be submitted for
each BMP specified for this project. Contact the Stormwater and General Permits Unit at [phone] 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 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.
• 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 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 & 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)
VII. 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): CATLIN Engineers and Scientists
Mailing Address: P.O. Box 10279 (220 Old Dairy Road)
City: Wilmington State: NC Zip: 28404-0279
Phone:( 910 ) 452-5861 Fax: ( 910 ) 452-7563
VIII. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item 2) Derek Dunn
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 covenanill be recorded, and that the proposed project complies with the requirements of 15A
NCAC 2H,,M.
Signature:
Date: 'L
Form SWU-101 Version 3.99 Page 4 of 4

C `L. n 220 Old Dairy Road • P.O. Box 10279
Wilmington, North Carolina 28405
ENGINEERS and SCIENTISTS Telephone: [phone]
Pax: [phone]
TRANSMITTAL
TO: Noe -,Ile- Lu4�efz ,,
AI C.DEa - Alf. of &4 s
W •7Mi/4c&a .1V-C . fglw- NOW
DATE: 3/2?/oo
ATIIIVIC)CT # 19Y07[o
We Are Transmitting Herewith The Following: MAR. 2 9 2000
ITEM
ACTI07W
ANSMITTED EY
Drawings
1.
For Your Use
US Mail
Specifications
2.
For Review
Messenger
Shop Drawings
3.
Please Comment
Next Day Service
Contract Documents
4.
Reply ASAP
Other — Ina. W
Correspondence
5.
Urgent
Q/el flei106
Reports
6.
Returned
NO. OF COPIES DESCRIPTION ACTOfi
CODE;
2 Af,,sed /0/-,, rAce ,O- Z I
COMMENTS:
COPY TO:
SIGNED: )�f&- 2 RA,
North America 9 Europe

Cr&CLUI
ENGINEERS and SCIENTISTS
March 3, 2000
Ms. Linda Lewis
Stormwater Engineer
North Carolina Department of Environment
and Natural Resources
Division of Land Resources
127 Cardinal Drive Extension
Wilmington, North Carolina 28405
Re: Stormwater Management Plan
DPD Team Concrete, Shallotte Site
Brunswick County, North Carolina
CATLIN Project No. 199-076-42
Dear Ms. Lewis:
220 Old Dairy Road • P.O. Box 10279
Wilmington, North Carolina 28405
Telephone: [phone]
Pax: [phone]
�U�ai v -,--
0 3 2000
N ECG
On behalf of DPD Team Concrete, CATLIN Engineers and Scientists has enclosed for your
review the Stormwater Management Plan application in duplicate for the project DPD Team
Concrete, Shallotte Plant, Shallotte, located on NC Highway 130 in Brunwswick County, North
Carolina. Also enclosed are two sets of the drawings and calculations, and the application fee in
the amount of $420.00.
If you have any questions in regard to the Stormwater Management Plan, please advise.
Sincerely,
Keith P. Bulla, P.E.
Project Manager
KPB/hab
Enclosures
cc: DPD Team Concrete
9076swmg.pin
North America • Europe

STORMWATER MANAGEMENT PLAN
For
DPD Team Concrete
Shallotte Ready -Mixed Concrete Plant
Shallotte, North Carolina
CATLIN Project No. 199076
Prepared For:
DPD Team Concrete
P.O. Box 2277
Greenville, North Carolina 27836
March 3, 2000
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Prepared By:
CATLIN Engineers and Scientists
220 Old Dairy Road
P. O. Box 10279
Wilmington, North Carolina 28404-0279
[phone]

STORMWATER MANAGEMENT PLAN
DPD TEAM CONCRETE
SHALLOTTE READY -MIXED CONCRETE PLANT
SHALLOTTE, NORTH CAROLINA
MARCH 3, 2000
1.0 NARRATIVE
The DPD Team Concrete Shallotte Plant project is a proposed ready —mixed concrete plant
to be located in the Shallotte Industrial Park on an unnamed street off of North Carolina
Highway 130, Brunswick County, North Carolina (See Figure 1). The developer and
property owner of this project is DPD Team Concrete. The site is approximately 4.8 acres
in size and is to be developed with a 4200 square foot building, a ready —mixed concrete
plant truck wash down pad with basin, truck and vehicle parking and driveway. The site is
currently undeveloped but has previously had timber removed which consisted of long leaf
and loblolly pines.
The land disturbing activity associated with this project will consist of disturbing
approximately 2.72 acres. This area includes driveways, parking, metal building, concrete
pads and utilities. Public water and sewer have previously been extended to the site. The
site has 404 wetlands located on the north east and west boundary which are to be protected
and not disturbed.
The soils at the site consist of Mandarin fine sand and Murville mucky fine sand as
indicated in the Soil Summary of Brunswick County, North Carolina prepared by the Soil
Conservation Service. The Mandarin and Murville sands consist of poorly drained soils,
with moderate to rapid permeability and slow surface runoff.
Prior to establishment of permanent planting, ninoff sedimentation will be controlled with
the use of temporary sediment basins, check dams and temporary silt fences. A temporary
construction entrance will also be constructed. The erosion control measures will be
maintained throughout the project construction period and will not be removed until the
permanent planting has been established and runoff sedimentation is not a threat. The detail
for the temporary silt fence, temporary sediment basin check dam and temporary entrance
are included in the enclosed project plans. Also, runoff sedimentation will be controlled
with a temporary planting until the permanent planting can take place. Sedimentation and
erosion control measure and stormwater calculations are contained in Appendix B.
1.1 Stormwater Management
The stormwatermanagement plan for the site is to direct stormwater runoff from
impervious surfaces to vegetated swales. A total of four swales are proposed for the
project, each located on the perimeter of the site. Each swale extends greater than
100 feet. Each swale discharges to existing thickly vegetated wetlands that flank the
property. The velocity of stormwater in each swale has been calculated based on the
ten year frequency storm and was found to be non -erosive for the proposed lining
DPD Team Concrete, 9076 SWM.PLN CATLIN Engineers and Scientists
CATLIN Project No. 199076 1 March 3, 2000

grasses. The calculations are contained in Appendix B.
This project will require an NPDES permit for the stormwater runoff from an
industrial facility. The temporary sediment basin number two is proposed to be
cleaned of settled material upon construction completion and converted into a wet
detention pond for plant process water treatment to meet the NPDES permit
requirements.
1.2 Construction Sequence
A. Obtain plan approval and other applicable permits.
B. Flag the work limit
C. Install temporary construction entrance/exit.
D. Install silt fence, and temporary sediment basins.
E. Begin site clearing, grubbing and grading
F. Install check dams in new swales. Use temporary seeding measures to
prevent erosion.
G. Permanently vegetate, landscape, and mulch.
H. All erosion and sediment control practices will be inspected weekly and
after rainfall events. Needed repairs will be made immediately.
I. After site is stabilized, remove all temporary measures and construction
entrance.
J. Estimate time before final stabilization = 3 months.
2.0 PLANTING SPECIFICATIONS
Seeding, mulching, and conditioning of the soils on the subject site is to be performed to
North Carolina Department of Transportation requirements, Section 880, Standard
Specifications for Roads & Structures, with the following provisions:
2.1 Seeding, mulching, and conditioning shall be done on all earth areas disturbed or
filled by channel dredging, construction or as designated by the Engineer.
2.2 Seeding, mulching, and conditioning shall be accomplished as soon as possible after
land disturbance to stabilize the soils and prevent erosion. The soils shall be
stabilized permanently between the months of April and June. Prior to permanent
seeding, the soils shall be seeded, mulched, and conditioned for a temporary grass
cover as herein specified.
DPD Team Concrete, 9076 SWM.PLN CATLIN Engineers and Scientists
CATLIN Project No. d 99076 2 March 3, 2000

2.3 In order to prevent excessive soil erosion and siltation, a grass cover shall be
established as soon as possible following dredging and construction operations. The
Contractor shall complete grading to the proper final grade and then perform
seeding, mulching, and conditioning as the final grading progresses or within 30
days thereof, unless there is a specific permissible length of delay due to
circumstances beyond the control of the Contractor.
2.4 Superficial scratching of the slope surface will not be sufficient seedbed preparation.
On 2:1 or 1 %z:1 slopes, a seedbed preparation will be required approaching the
degree of preparation required on flatter areas as far as depth is concerned although
the same degree of smoothness of seedbed will not be required.
2.5 The kind of seed, the rate of application of seed, limestone, and fertilizer is as
follows (Contractor will be responsible for performing tests of on -site soils):
Temnoraa Seeding - Fall
Seeding Mixture Species: Rye (grain) Rate (lb/acre): 120
Seeding Dates: August 15 - December 30
Soil Amendments: Follow recommendations of soil tests from the Agriculture
Extension Service for fertilizer and lime application rates.
Mulch: Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt,
netting, or a mulch anchoring tool. A disk with blades set nearly straight can be
used as a mulch anchoring tool.
Maintenance: Repair and refertilize damaged areas immediately. Topdress with
50 lb/acre of nitrogen in March. If it is necessary to extend temporary cover
beyond June 15, overseed with 50 lb/acre Kobe.
TeWorary Seeding - Late Winter and Early pring
Seeding Mixture Species: Rye (grain) Rate (lb/acre): 120
Annual Iespedeza Rate (lb/acre): 50
(Kobe)
Omit annual Iespedeza when duration of temporary cover is not to extend
beyond June.
Seeding Dates: December 1 - Apri l 15
Soil Amendments: Follow recommendations of soil tests from the Agriculture
Extension Service for fertilizer and lime application rates.
Mulch: Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt,
netting, or a mulch anchoring tool. A disk with blades set nearly straight can be
DPD Team Concrete, 9076_SWM.PLN CATLIN Engineers and Scientists
CATLIN Project No. 199076 3 March 3, 2000

used as a mulch anchoring tool.
Maintenance: Refertilize if growth is not fully adequate. Reseed, refertilize and
mulch immediately following erosion or other damage.
Temporary Seeding - Summer
Seeding Mixture Species: German millet Rate (lb/acre): 40
Seeding Dates: April 15 - August 15
Soil Amendments: Follow recommendations of soil tests from the Agriculture
Extension Service for fertilizer and lime application rates.
Mulch: Apply 4,000 lb/acre straw. Anchor straw by tacking with asphalt,
netting, or a mulch anchoring tool. A disk with blades set nearly straight can be
used as a mulch anchoring tool.
Maintenance: Refertilize if growth is not fully adequate. Reseed, refertilize and
mulch immediately following erosion or other damage.
Permanent Seeding
Seeding Mixture Species:
Pensacola Bahiagrass
Sericea Iespedeza
Centipedegrass
German millet
Seeding Dates: April 1 - July 15
Rate (lb/acre): 50
30
5
10
Soil Amendments: Apply lime and fertilizer according to soil tests from the
Agriculture Extension Service
Mulch: Apply 4,0001b/acre grain straw or equivalent cover of another suitable
mulch. Anchor by tacking with asphalt, roving or netting or by crimping with a
mulch anchoring tool. A disk with blades set nearly straight can be used as a
mulch anchoring tool.
Maintenance: Refertilize the following April with 50 lb/acre nitrogen. Repeat
as growth requires. May be mowed only once a year. Where a neat appearance
is desired, omit sericea and mow as often as needed.
Limestone shall contain not less than 85 percent of calcium and magnesium
carbonates and shall conform to the following minimum standards: one hundred
percent (100%) must pass through U.S. Standard 10 mesh screen and forty percent
(40%) must pass through U.S. Standard 100 mesh screen.
2.6 Equipment to be used for the application, covering, and compaction of limestone,
DPD Team Concrete, 9076 SWM.PLN CATLIN Engineers and Scientists
CATLIN Project No. 199076 4 March 3, 2000

fertilizer, and seed shall be approved for that use. Application of seed and fertilizer
in water suspension or by air blast methods will not be permitted on slopes flatter
than 2:1. Should a hydraulic seeder be used for application of seed and fertilizer,
the seed shall not remain in water containing fertilizer for more than 30 minutes
prior to application.
2.7 Mulching - Mulch shall be spread uniformly over the area by hand or by means of
appropriate mechanical spreaders or blowers to obtain an application satisfactory to
the Engineer. It is the intent of this specification that satisfactory applications shall
allow some sunlight to penetrate and air to circulate, but also partially shade the
ground, reduce erosion, and conserve soil moisture. Care shall be exercised to
prevent displacement of soil or seed or other damage to the seeded area during
mulching.
2.8 The Contractor shall be required to take sufficient precautions to prevent mulch
entering catch basins or pipe lines through displacement by wind, water or other
causes. The Contractor shall apply a sufficient amount of asphalt to insure that the
mulch is properly held in place.
2.9 In the application of fertilizer in seeding operations, or in the application of asphalt
materials during mulching operations, adequate precautions shall be taken to
prevent damage to concrete or metal structures. Such structures shall be adequately
covered or application methods changed so as to avoid damage. Where any damage
occurs as a result of the Contractor's failure to take adequate precautions, the
Contractor will be required to repair such damage including any cleaning that may
be necessary before final acceptance of the work.
2.10 Once an area has been seeded and mulched, the Contractor is required to take
adequate precautions to insure that all fixture construction operations do not damage
these areas. No payment will be made for repairs of any kind that are due to
negligence of the Contractor.
2.11 Fertilizer shall be the standard commercial product of analysis. All fertilizer shall
be delivered in bags bearing the manufacturer's name, the chemical analysis of the
project, and its weight. If not used immediately after delivery, fertilizer shall be
stored in a manner that will not allow it to harden or destroy its effectiveness.
2.12 Seed shall be certified seed or equivalent based on North Carolina Seed
Improvement Association requirements for certification. If the seed is not grown in
the state where it is to be used, it shall meet the certification requirements of the
Seed Improvement Association for the state in which it is grown. All seed shall be
furnished in sealed standard containers. Seed which has become wet, moldy, or
otherwise damage prior to seeding. will not be acceptable.
2.13 Mulch shall be any of the materials noted below:
A) Grain straw or dry hay: Mulch materials which contain an excessive
quantity of mature seed of noxious weed or other species which would
hinder the establishment of desirable vegetation will not be acceptable. Any
DPD Team Concrete, 9076_SWM.PLN CATLIN Engineers and Scientists
CATLIN Project No. 199076 5 March 3, 2000

mulch material which is in an advanced stage of decomposition as to
smother or retard growth of grass will not be acceptable.
B) Asphaltic adhesive: Asphaltic material to anchor straw mulch shall be thin
enough to be blown from spray equipment. It shall be SS-1 emulsion or RS
liquid asphalt 1 or 2.
2.14 Seed: Furnish duplicate signed copies of a statement from vendor certifying that
each container of seed is fully labeled in accordance with the Seed Improvement
Association requirements for certification. This certification shall appear on, or
with, all copies of invoices for the seed. Each lot of seed will be subject to sampling
and testing at the discretion of the Engineer. Sampling and testing will be in
accordance with the latest regulation under the Federal Seed Act.
2.15 Fertilizer and Lime: Furnish duplicate copies of invoices for all fertilizer and lime
used on the project. Invoices for 1=ertilizer shall show the analysis and the quantity
furnished. Invoices for lime shall show the percentage of magnesium oxide and
quantity furnished. Upon completion of the project, a final check of the total
quantities of fertilizer and lime used will be made against the total area seeded and if
the rates of application have not been met, additional quantities of these materials
shall be applied to make up the application specified.
2.16 Prior to or during grading and tillage operations, the ground surface shall be cleared
of stumps, stones, roots, cable, wire, grade stakes, and other materials that might
hinder proper grading, tillage, seeding, or subsequent maintenance operations.
2.17 Grades on the area to be treated sliall be maintained in a true and even condition.
Maintenance shall include any necessary repairs to previously graded areas.
2.18 All graded areas shall be thoroughly tilled to a depth of at least four inches by
plowing, disking, harrowing, or other approved methods until the condition of the
soil is acceptable. On sites where soil conditions are such that high clay content and
excessive compaction cause difficulty in getting clods and lumps effectively
pulverized, the Contractor shall use rotary tillage machinery, until the mixing of the
soil is acceptable and no clods or clumps remain larger than 1-1/2 inches in
diameter. A firm and compact seedbed is required, and after being graded, the
seedbed shall be lightly compacted with a land roller such as a cultipacker, before
and after seeding. All tillage operations shall be as near on the contour as is
practical, but in not instance up and down the slope.
2.19 Limestone may be applied to the area prior to the preparation of the seedbed, but in
all cases, it shall be applied before seeding and thoroughly incorporated into the
entire depth of the prepared seedbed. The incorporation of the lime may form a part
of the tillage operation specified above.
2.20 The fertilizer shall be incorporated into the upper three or four inches of the
DPD Team Concrete; 9076 SWM.PLN CATLIN Engineers and Scientists
CATLIN Project No. 199076 6 March 3, 2000

prepared seedbed. This can be done just prior to the last tillage operation or just
prior to seeding, but in no case, will it be applied more than three days before
seeding or before the lime is applied. Distribution by means of an approved seed
drill equipped to sow seed and distribute fertilizer at the same time will be
acceptable. When hydroseeding equipment is used for planting operations, fertilizer
shall be applied simultaneously with seed using the above rate of application.
2.21 When conditions are such, by reason of draught, high winds, excessive moisture, or
other environmental factors are such that satisfactory results are not likely to be
obtained, the work shall be stopped and resumed only when conditions are
favorable. If inspection during seeding operations, or after there is a show of green,
indicates that strips wider than the space between rows planted have been left, or
other areas skipped, additional seed shall be sown on these areas.
2.22 Straw or hay mulch shall be anchored in place by uniformly spraying the straw with
the hereinbefore specified asphalt material at the rate of 0.10 gallon per square yard.
2.23 The area shall be protected against foot and vehicular traffic by erecting adequate
barricades immediately after seeding is completed, and by placing warning signs of
an approved type.
2.24 The Contractor shall be responsible for the proper care of the seeded area during the
period when vegetation is being established. In the vent of an erosive rain before an
adequate stand of vegetation is established, damaged areas shall be repaired, limed,
fertilized, seeded, and mulched wholly at the Contractor's expense.
DPD Team Concrete; 9076 SWM.PLN CATLIN Engineers and Scientists
CATUNProject No. 199076 7 March 3, 2000

APPENDIX A
FIGURES
DPD Team Concrete, 9076_SWM.PLN CATLIN Engineers and Scientists
CATLIN Project No. 199076 February I8, 2000

M TEAM CONCRETE
vu
FIGURE

APPENDIX B
CALCULATIONS
DPD Team Concrete; 9076_SWM.PLN CATLIN Engineers and Scientists
CATLIN Project No. 199076 February 18, 2000

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