20061581 Ver 1_More Info Received_20070507

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May 2, 2007
Michael F. Easley, Governor
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MAY 0 7 2007
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Greg Thompson, County Engineer
New Hanover Water and Sewer District
230 Market Place Drive Suite 160
Wilmington, NC 28403
William G. Ross 7r., Secretary
North Carolina Departmegt of Environment and Nettaral Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
Subject: Permit No. SWS 940512MOD
New Hanover County Water and Sewer District Well Fields and Water Treatment
Facility
Low Density Stormwater Project
New Hanover County
Dear Mr. Thompson:
The Wilmington Regionai_Office received a complete Stormwater Management Permit Application for
New Hanover County Water and Sewer District Well Fields and Water Treatment Facility on May 2,
2007. Staff review of the puns 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 940512MOD dated May 2, 2007, for the construction of the subject project.
This permit shall be effective from the date of issuance until rescinded and shall be subject to the
conditions and limitations as specified therei~l; and does not supercede 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 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 150 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 can#act either
Chris Baker or me at [phone].
Sinter ,
~~~
EdVvar eck
Regional Supervisor
Surtace Water Protection Section
ENB/csb: S:1VI/QSISTORMWATIPERMIT1940512MOD.may07
cc: Paul Goss P.E., WK Dickson
New Hanover County Inspections
Chris Baker
New Hanover County Engineering
Division of Coastal. Management
Wilmington Regional Office
Central Files ~ N°n`hcaro a
~atura~~
Nw•th Carolina Division of Water Quality 1617 Meil Service Canter Raleigh, NC 27699-1617 Phone [phone] Customer Service
Tntcrnet: v~v w.nctvatereualit~or¢ Location: AI.512 Salisbury St. Raleigh, NC 27604 Fax [phone].62 3.6748
An Eaual flnnorlunlNJAfFlrmalive Aciian Emnbver- 50°b RecvcledJ1096 Past Consumer Paoer

State stormwater Management Systems ~~
Permit Number SW8940512MOD
'~t ~. .
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER iUTANAGEMENT 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
Greg Thompson and New Hanover Water and Sewer District
New Hanover County Wafer and Sewer District Well Fields and Water
New Hanover County
.FOR THE
construction, opera#ion and maintenance of a low density development in compliance
with. the provisions of 15A NCAC'2H: 100Q (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.
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
This permit covers the construction of 371,116 square feet of built-upon area.
2. The overall tract built-upon area percentage for the project must be maintained at
30%, 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. The only runoff conveyance systems allowed will be vegetated conveyances
such as swales with minimum side slopes of 3:1 {H:V} as defined in the
stormwater rules and approved by the Division.
5. No piping is allowed except that minimum amount necessary to direct runoff
beneath an impervious surface such as a road or to provide access.
6. Unless specified elsewhere, permanent seeding requirements for the swales
must follow the guidelines established in the North Carolina Erosion and
Sediment Control Planning and Design Manual:
7. Roof drains must terminate at least 30' from the Mean High Water line.
Page 2 of 5

State 5tormwater Management Systems
Permit Number SW8940512MOD
Il. SCHEDULE OF COMPLIANCE
1. 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 subdivision and/or sale of this project, in whole or in part, the
following deed restrictions must be recorded with the Office of the Register of
Deeds:
a. The following covenants are intended to ensure ongoingg compliance with
State Stormwater Management Permit Number SW8 940512MOD, as
issued by the Division of Water Quality under NCAC 2H.1000.
b, The State of North.Carolina is made a.ben'eficiary of these covenants to
the extent necessary to maintain ~compli.ance with the Stormwater '
Management Permit.
c. These covenants are to run with the land and be binding on all persons.
and parties claiming under them.
d. The covenants pertaining to stormwater may not be altered or rescinded
without the express written consent of the State of North Carolina, Division
of Water Quality.
e. Alteration of the drainage as shown on the approved plans may not take
place without the concurrence of the Division of Water Quali#y.
f. Lots within CAMA's Area of Environmental Concern may the permitted
maximum built-upon area reduced due to CAMA jurisdiction within the
AEC.
g. Construction of additional built-upon area in excess of 371,116 square feet
will require a permit modification.
h. 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 #o construction. An engineered system
wil! 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,.
i. Filling in or piping of any vegetative conveyances (ditches, swales, etc.)
associated with this developmen#, except for average driveway crossings,
is strictly prohibited by any persons.
j. A minimum 30' wide vegetated buffer area shall be provided between
surface waters and all impervious surfaces.
Page 3 of 5

State Stormwafer Management Systems
Permit Number SW8940512MOD
5. A copy of the recorded restrictions must be received in this Office within 30 days
of the date of sale.
6. 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. ~ .
7. 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.
$. The permittee shall submit to the Director and shall have received approval for
revised plans, specifications, and calculations prior to construction, for any
modification to the approved plans ,including, but not limited to, those listed
below:
~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. 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.
10. During construction, erasion shall be kept to a minimum and any eroded areas of
the. swales or other vegetated conveyances will be repaired immediately.
11. The permi#tee 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.
12. 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.
13. The permittee shall submit all information requested by the Director or his
representative within the time frame specified in the written information request.
Ill. GENERAL CONDITIONS
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.
Page 4 of 5

State Stormwater Management Systems
Permit Number SW8940512MOD
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.aflowed 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. This permit is not transferable 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 appropria#e 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 mayor may not be approved.
The permittee is responsible for compliance with all permit conditions until the
Director approves the transfer.
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 the Division of any name, .ownership or mailing address
changes within 30 days.
8. The issuance of this permit does not preclude the Permitter 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 2nd day of May 2007
NORT CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
~~~~-
forAlan W. Klimek, P.E., Director
Division of Water Quality
By Authori#y of the Environmental Management Commission
Page 5 of 5

wc,6,q~~t051aMoD
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):
New Hanover County
2, Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Mr. Greg Thompson, PE, PLS -County Engineer
3. Mailing Address for person listed in Item 2 above:
230 Government Center Drive
City: Wilmin~~n _ State: NC Zip: R4~
Telephone Number: (910 ) 798-7139
4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans,
specifications, letters, operation and maintenance agreements, etc.):
New Hanover County Water and Sewer District Well Fields and Water Treatment Facility
(Low-density Permit Modification for Ogden Park Well Sites only)
Location of Project (street address):
Ogden Park, New Hanover County, NC
City: Wilmington, NC 28443 County: New Hanover
6. Directions to project {from nearest major intersection):
Located on Ogden Park Road, off of Gordon Road behind Eaton Elementary School
7, Latitude: 34°16'09.923" N
Latitude: 34° 16' 15.044" N
Longitude; 77°49'53.082" W of Well "M".
Longitude: 77°49'35.13b" W of Well "N".
Latitude: 34°16'31.715" N Longitude: 77°49'44.082" W of Well "O".
Contact person who can answer questions about the project::
Name: Paul (~LS.S, PE Telephone Number: (910 l 7b2-4200
Form SWU-101 Version 3.99 Page t of 4
State of North Carolina.
Department of Environmental and Natural Resources
Division of Water Quality

II. PERMIT INFORMATION:
1. Specify whether project is (check one): New Renewal ._._~-Modification
2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the
existing permit number SW8 940 12 Modification and its issue date {if knownl N/A
3. Specify the type of project {check one):
~_ Low Density high Density Redevelop General Permit Other
4. Additional Project Requirements (check applicable blanks):
X CAMA Major X Sedimentation/Erosion Control X 404/401 Permit 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 from the well sites will be treated by the use of sheet flow off of the site.
2. Stormwater runoff from this project drains to the Cape Fear River Basin.
3. Total Project Area: 136 acres. '
4. Project Built Upon Area ~j.26 %.
5. How many drainage areas does the project have? 1
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 Draina a Area I
Receivin Stream Name U.T. Smith Creek
Receivin Sheam Class C; Sw
Draina a Area 5 924,160 SF Y 136 ACRES
Existing Impervious*Area (To
Remain 353,041 SF = 8.1047 ACRE5
Fro osed Im ervious* Area 18,075 SF = 0.42 ACRES
Total Im ervious Area 371,116 SF = 8.52 ACRES
Im ervious* Area Total b.26 %
Total Im ervious* Surface Area Draina a Area 1
On-Site Buildin s 0 SF
On-Site Streets 15,825 SF
On-Site Parkin 0 SF
On-Site Sidewalks 0 SF
Other On-Site (Equipment Pads,
Water Tank, Dumpster Fad) 353,041 SF Existing
1,050 SF Equipient Fads
1,200 SF Ri Ra $asins
Off-Site 0 SF .
Total: 371,116 SF
Form SWU-101 Version 3.99 Page 2 of 4

*Cmpervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas,
sidewalks, gravel areas, etc.
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, out parcels, and future development prior to the sale of any lot: If lot sizes vary significantly, a
table listirig each tot number, size, and the allowable built-upon area for. each lot must be provided as an
attachment:
The following covenants are intended to ensure ongoing con:pliance with state slormwater 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 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 not include
wood decking or the water surface of swimming pools.
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. All permitted runoff from the outparcels or future development shall be directed into the permitted
slormwater control system. These connections to the slormwater 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, thak 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 slormwater 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 (9I9) 733-5083 for
the status and availability of these forms.
Form SWU-102 Wet Detention Basin Supplement
Fonn SWU-103 Infiltration Basin Supplement
Forrn SWU-104 Low Density Supplement
Form SWU-105 Curb Outlet System Supplement
Form SWU-106 Off-Site System Supplement
Forrr~ SWU-107 Underground Infiltration 'Trench Supplement
Form SWU-108 Neuse River Basin Supplement
Form SWU-109 Innovative Best Management Practice`Sapplement
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 $~6 (payable to NCDENR} ~ o? a~~o
• Detailed narrative description of stormwater treatrnent/management ~X /p~
• 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): W.K. Dickson & Co., Inc. ,
Mailing Address: 909 Market Street
City Wilmington State: NC
Phone: (910 ) 762-4200
VIII. APPLICANT'S CERTIFICATION
Zip: 28401
Fax: [phone]
I, (print or type name ofperson listed in General Information, Item 2) Greg Thompson, PE, PLS ,
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. w
Signature: ~"' / / ~ Date: ~ r ' r Z ' ~~
-~
Form SWU-101 Version 3.99 Page 4 of 4

Permit No. ~~n/8 ~yQS/Z/??Dn
(to be provided by DYYQJ
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
LAW DENSITY SUPPLEMENT
Th1s form may be photocopied For use as an driginal
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 : A ~w ~~ ovcsrt err w~~~ a~tipSkk~ 1e i~lsrnr r 16LL F:~~.,~~ nNO I~/e~ 7'~cRarw.~Nr Fa
Contact Pelson: ~ o~ ,, ~o~,~. ~~ Phone Number: ,(9/G) ~ 2 - Y24d ,
Number of Lots: ! •~ Allowable Built Upon Area Per Lot*: SEA' lQrrea ,~, 1?
*lf lot sizes are not uniform, attach a table indicating the number of lots, lot sizes and allovvable 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 nuzYiber 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 S of 2

(SAxDF)-RA-OA = BUA
No. Lots Lot
Calculation:
SEA ~7Ti~CH~D
III: REQUIRED ITEMS CHECKLIST
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.
Applican~ Initials
---~~-_~ a. A 30 foot vegetative buffer is provided adjacent to surface waters. Projects in the Neuse
River basin may require additional buffers.
~~ 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.
d. Project conforms to low density requirements within the ORW AEC (if applicable).
[15A NCAC 2H .100'1(2)(b)J
Form SWU-104 Rev 3.99 Page 2 of 2

Page 1 of 1
Project Name: New Hanover County Water and Sewer District Well Fields and Water '
Treatnr-ent Facility
Stormwater Project Number: SW8 940512MOD
Total Number ofLots =1
Lot Size Allowable Built Existing Built Built Upon
Lot Number (sq. ft.) Upon Area (sq. ft.) Upon Area Area
t Area x 25% s . ft. s . ft.
1 - O den Park Wells Parcel 5 924,164 1,481,040 353,041 18,075
Total ~ 5 424 160 1481 040 353 041 18 075
BUA + ~ EBUA
~1~ ~ Lot Areas x 100 % =Total Percentage Built Upon Area
Where: ~ BUA =Proposed Built Upon Area = 18,075 Sq.ft.
EBUA =Existing Built Upon Area = 353,041 Sq.ft:
18,075 + 353,041 x 100% = 6.26%
5,924,1 b0
6.2b% < 25%