SW8010405_HISTORICAL FILE_20010601

STORMWATER DIVISION CODING SHEET
POST-CONSTRUCTION PERMITS
PERMIT NO. SW8 0(OqD 5-
DOC TYPE ❑ CURRENT PERMIT
❑ APPROVED PLANS
E�( HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE 900[ 6G 6) i
YYYYMMDD

North Carolina
Department of Environment and Natural Resources
Division of Water Qualith'
Wilmington Regional Office
Bum
Michael F. Easley, Governor C D E N R
Jr.,
William G. Ross, Secretary NORTH CAROUNA DEPARTMENT OF
ENVIRONMENT AND NATURP RESOURCES
.tune 1, 2001
Rev. William Solomon, Senior Pastor
North Grove Evangelical Presbyterian Church
804 Valley Forge Court
Wilmington,NC 28411
Subject: Permit No. SW8 010405
North Grove Evangelical Presbyterian Church Site
High Density Stormwater Project
New Hanover County
Dear Rev. Solomon:
The Wilmington Regional Office received a complete Stormwater Management Permit Application forNorth Grove
Evangelical Presbyterian Church Site on May 16,2001. Staff review of the plans and specifications has determined
that the project, as proposed, will comply with the Storm,.vater Regulations set forth in Title 15A NCAC 21-I.1000.
We are forwarding Permit No. SW8 010405 dated June 1, 2001, for the construction of North Grove Evangelical
Presbyterian Church Site.
This permit shall be effective from the date of issuance until June 1,2011, 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
adjudicator),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 [phone].
Sincerely,
S ��
1ck Shiver
Water Quality Regional Supervisor
RSS/arl: S:\WQS\STORMWAT\PERMIT\010405.JUN
cc: Phil Tripp, P.E.
Tony Roberts,New Hanover County Inspections
Beth E. Wetherill, New Hanover County Engineering
Haven Hodges, Authorized Representative
Linda Lewis
Wilmington Regional Office
Central Files
127 Cardinal Dr.Ext.,Wilmington,North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10'% post-consumer paper

State Stormwater Management Systems
Permit No. SUrB 010405
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
In accordance with the provisions of Article 21 of Chapter 143,General Statutes of North Carolina as amended,and
other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
North Grove Evangelical Presbyterian Church
North Grove Evangelical Presbyterian Church Site
New Hanover County
FOR THE
construction, operation and maintenance of two wet detention ponds in compliance with the provisions of 15A
NCAC 2H .1000 (hereafter referred to as the "stormwater rules")and the approved stormwater management plans
and specifications and other supporting data as attached and on file with and approved by the Division of Water
Quality and considered a part of this permit.
This permit shall be effective from the date of issuance until June 1, 2011 and shall be subject to the following
specified conditions and limitations:
I. DESIGN STANDARDS
1. This permit is effective only with respect to the nature and volume of stormwater described in the
application and other supporting data.
2. This stormwater system has been approved for the management of stormwater runoff as described on page
3 of this permit, the Project Data Sheet. The stormwater controls have been designed to handle the runoff
from 123,807 ft' and 23,551 ft' of impervious area, respectively.
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 built-upon area for the future development is limited to the future area shown on the plans has not been
accounted for..
6. The runoff from all built-upon area within the permitted drainage area of this project must be directed into
the permitted stortwater control system. A permit modification must be submitted and approved prior to
the construction of additional built-upon area from outside of the approved drainage area.
2

State Stormwater Management Systems
Permit No. SW8 010405
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name: North Grove Evangelical Presbyterian Church Site
Permit Number: SW8 010405
Location: New Hanover County
Applicant: Rev. William Solomon, Senior Pastor
Mailing Address: North Grove Evangelical Presbyterian Church
804 Valley Forge Court
Wilmington, NC 28411
Application Date: May 16, 2001
Name of Receiving Stream/Index #: Cape Fear/ 18-87-22
Classification of Water Body: "SA"
If Class SA, chloride sampling results: >1/2 mile from SA waters
Pond Number: 1 2
Pond Depth, feet: 6.5 5
Permanent Pool Elevation, FMSL: 33 38
Drainage Area, acres: 5.31 0.99
Total Impervious Surfaces, ft2: 121,807 23,551
Offsite Area entering Pond, ft2: none, per Engineer
Required Surface Area, It': 5,812 1,669
Provided Surface Area, ft2: 6,328 4,042
Required Storage Volume, ft': 10,249 1,946
Provided Storage Volume, ft': 12,467 4,563
Temporary Storage Elevation, FMSL: 34.65 39
Controlling Orifice: 1.5"� 0.75"(� pipe
3

State Stormwater Management Systems
Permit No. S,\78 610405
11. SCHEDULE OF COMPLIANCE
1. The stormwater management system shall be constructed in it's entirety, vegetated 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. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted
stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must
be followed in 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 DWQ. 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 stormwater 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 an appropriate designer for the system installed
certifying that the permitted facility has been installed in accordance with this permit, the approved plans
and specifications, and other supporting documentation. Any deviations From the approved plans and
specifications must be noted on the Certification.
8. If the 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 prior to any construction.The following items will require a modification
to the permit. The Director may determine that other revisions to the project should 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 or to the approved drainage areas.
e. Further subdivision,acquisition,or sale of the project area.The project area is defined as all property
owned by permittee, 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. 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 Managcmcnt Svstcros
Permit No. SIA78 61*5
11. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the
approved plans, prior to construction. If the proposed BUA exceeds the pemitted amount, a modification
to the permit must be submitted and approved prior to construction.
12. Prior to the sale of any portion of the property,an access/maintenance easement to the stonnwater 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 permittee when the permitted site does not meet one or more of the minimum
requirements of the permit.Within thetime 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.
15. The permittee shall notify the Division of any name,ownership or mailing address changes within 30 days.
111. GENERAL 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 request must be submitted to the Division of Water Quality
accompanied by documentation from the parties involved, and other supporting materials as may be
required. The approval of this request will be considered on its merits and may or may not be approved.
2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to
enforcement action by the Division of 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 Permittee 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 control must follow the
guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual.
Permit issued this the 1 st day of June, 2001.
NORTV CAROLINA ENVI 0NMENTAL MANAGEMENT COMMISSION
Kerr T. Stevens, Director `
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 010405
5

State Stormwater Management Systems '
Permit No. SW8 010405
North Grove Evangelical Church Site
Stormwater Permit No. SW8 010405
New Hanover Countv
Designer's Certification
1, as a duly registered in
the State of North Carolina, having been authorized to observe (periodtcallyhveekly/full time) the construction of
the project,
(Project)
for (Project Owner)hereby state that,to the bestofmy 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

State Stormwater Management Systems
Permit No SW8 010405
Certification Requirements:
P1 / P2
/ 1. The drainage area to the system contains approximately the permitted acreage.
/ 2 The drainage area to the system contains no more than the permitted amount of built-upon
area.
All the built-upon area associated with the prgject is graded such that the runoff drains to the
System.
/ 4. The outlet/bypass structure elevations are per the approved plan.
/ 5. The outlet structure is located per the approved plans.
7 6. Trash rack is provided on the outlet/bypass structure.
/ 7. All slopes are grassed with permanent vegetation.
/ 8. Vegetated slopes are no steeper than 3:1.
/ 9. The inlets are located per the approved plans and do not cause short-circuiting of the system.
/ 10. The permitted amounts of surface area and/or volume have been provided.
/ 1 I. Required drawdown devices are correctly sized per the approved plans.
/ 12. All required design depths are provided.
/ ]3. All required parts of the system are provided, such as a vegetated shelf, and a forebay.
/ 14. The overall dimensions of the system, as shown on the approved plans, are provided.
cc: NCDENR-DWQ Regional Office
"Cony Roberts, New Hanover County Building Inspector
7

tFF11la�
Date Received Fee Paid Permit Number
—lv—Ol1 4Z0 clXY 0 C31 O
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
This form may he pho(ocopied for use as an original
I. GENERAL INFORMATION
1. Applicants name (specify the name of the corporation, individual, etc. who owns the project):
North Grove Evangelical Presbvterian Church
2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance):
Haven Hodges, Project Coordinator
3. Mailing Address for person listed in item 2 above:
804 Valley Forge Ct
City: Wilmington State: NC Zip: 28411
Telephone Number: 910-798-0008
4. Project Name (subdivision, facility, or establishment name— should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
North Grove Evangelical Presbyterian Church
5. Location of Project(street address):
7721 Alexander Road
City: Wilmin on County: New Hanover
6. Directions to project(from nearest major intersection):
Approx. 10.000 If north from the intersection of US Hwv 17 and SR 1409
7. Latitude : N 340 17' 00" Longitude: W 770 30' 30" of project
8. Contact person who can answer questions about the project:
Name: Phillip Tripp Telephone Number: 910-763-5100
IL PERMIT INFORMATION:
1. Specify whether project is (check one): X New Renewal Modification
Form SWU-101 Version 3.99 Page 1 of

2. If this application is being submitted as the result of a renewal or modification to an existing permit, list
The existing permit number and its issue date (if known)
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 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 detention pond
2. Stormwater runoff from this project drains to the Cape Fear River basin.
3. Total Project Area: 12.7 acres 4. Project Built Upon Area: 54.4 %.
5. How many drainage basins 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 an additional sheet with the information for each area provided in the same format as below.
ase �ost£anW. S�zatgett1 TJraxia sttk
Receiving Stream Name Unnamed trib to Pages Creek Unnamed trib to Pages Creek
Receiving Stream Class SA SA
Drainage Basin Area 231,184 sf 43,093 sf
Existing Impervious * Area 0 0
Proposed Impervious * Area 123,807 sf 23,551 sf
% Impervious* Area (total) 53.6% 54.7%
Imrervtous Stu�aG1 Dt & ttt T3raana Bxs1t�Z
On-site Buildings 27,063 sf 0
On-site Streets 0 0
On-site Parking 90,520 sf 23,551 sf
On-site Sidewalks 6224 sf 0
Other on-site (future) 0 0
Off-site 1 0 0
Total: 1 E=123,807 sf E=23,551 sf
*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?
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 io 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 square feet ofany lot shall be covered by structures ofimpervious materials.
Impervious materials include arplwlt,gravel, concrete, brick stone, slate or similar material but do not include wood
decla'ng 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 ofthe permitted amount requires a state stormwc[er management permit in ca[ion prior
to construction.
.5. All permitted runofjfrom 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
ntegnry 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 [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

Vl. 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.
Appli� is Initials
• 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 and 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 film): Tripp Engineering. P.C.
Mailing Address: 419 Chestnut Street
City: Wilminaon State: NC Zip: 28401
Phone: [phone] Fax [phone]
VIIL APPLICANT'S CERTIFICATION
1, (print or type name ofperson listed in General Information, item 2) Haven Hodees
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.
4�
Signature: Date:
Form SWU-101 Version 3.99 Page 4 of 4

TRIPP ENGINEERING, P.C.
0 419 Chestnut Street RECEIVED
Wilmington, North Carolina 28401
Phone: [phone] • FAX: [phone] MAY 16 2001
May 15, 2001 BY:
NCDENR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: North Grove Evangelical Presbyterian Church
SW8 010405
New Hanover County, NC
TE 01017
Dear Linda.
In response to your correspondence dated April 25, 2001, we offer the following:
• A chlorides test is provided. A USGS map is provided showing project site,
water sample location and mile radius.
• A Highlighted drainage area map is provided.
• A letter from the property owner is provided stating that Haven Hodges is an
authorized representative.
• The 36" flow leveler works simply as a road crossing of a low area. We do
not want to cutoff flow of stormwater to the natural low areas by simply
filling.
• The 60" CMP drains through an existing ditch east and under Market Street
and eventually makes it to Pages Creek. This drainage route is shown
clearly on the topography map included with the chlorides test location.
• Nearest major intersection is provided on vicinity map.
• Dimensions are provided for buildings, parking, sidewalks, drives, etc.
Please review for approval and contact us if you have any questions or comments.
Thank you.
Sincerely,
Tripp Engineering, P.C.
Monica V. Loughlin
MVL:dcb
Enc.

NORTH GROVE EVANGELICAL PRESFPYTERIAN CHURL"
Pastor: Rev Bill Solomon 910.798.0008
Assistant to the Pastor: Rev. Alan Dollar
804 Valley Forge Court Wilmington, North Carolina 28411
"....walKing in His love, and giving it away.."
May 14, 2001
To Whom It May Concern:
This letter is to advise that North Grove Evangelical Presbyterian Church, property owners
at 7721 Alexander Road, Wilmington,N.C., has given Mr. Haven M. Hodges the authority
to act as our representative for the purposes of constructing our new facility at the above stated
property.
Sincerely yours,
RECEIVED
MAY 16 2001
DWQ
PROD 0
nW FOIL 405

Analytical and Consulting Chemists
X MID R® 1316 South Fifth Street
Yin,
oratories Wilmington, N.C. 28401
DATE RECEIVED 12-01 -00 [phone]
C. DATE REPORTED 12-06-00 Fax [phone]
0OW5067
PAGE 1 OF 1
TRIPP ENGINEERING PC P . O . 4
507 CHESTNUT ST .
WILMINGTON , NC 28401
ATTENTION: CHARLES CAZIER
SAMPLE DESCRIPTION: 1 WASTEWATER 12-01-00
1 . V. T . PAGES CREEK 12-01 -00
RESULTS
1
Chloride , as Cl , PPM 38
7
EN SMIT NIOR ANALYST
RECFjvBD
MAY 16 2001
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x * COMMUNICATION RESULT REPORT ( APR.25.2001 11:03AM�)-*
may/ TTI NCDENR WIRO
FILE MODE OPTION ADDRESS (GROUP) /---RESULT PAGE
--- -
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355 MEMORY TX 9-7635631 OK P. 1/1
----------------------------------------------------------------------------------------------------
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North Carolina
Department of Environment and Natural Resources
' `aDivision of Water Quality
Wilmington Regional Office �s
Michael F. Easley, Governor NCDENR
` V Y Ar
William , Ross, Jr., Secretary NORTH CAROLINA DEPARTMENT OF
rNWKONMENT ma NEURAL Rc5ouq=
FAX COVER SHEET
Date: April 25, 2001 No. of Pages: 1
To: Monica Loughlin From: Linda Lewis
Company: Tripp Engineering Water Quality Sectio tormwater
FAX #: [phone] AX# 910- 0 4
Phone# [phone]
DWQ Stormwater Project Number: SW9 010405
Project Name: Northgrove Evangelical Presbyterian Cburch
MESSAGE:
Dear Monica:
The chlorides testing option is very close to being reinterpreted. I've been told that technically, all of the old
directives were superceded by the rules in 1995. We are currently awaiting official verification of this. The review
status of projects that come in just before or immediately after the ruling is still being decided. At a minimum,you
...:n ._--AIL._-.....d.., -P� I-_ _L,,..Id_... . .. . .. . . . . ... -

.t
North Carolina
Department of Environment and Natural Resources
1�•
Division of Water Quality
Wilmington Regional Office
Michael F. Easley, Governor NCDENR William G. Ross, Jr., Secretary NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
FAX COVER SHEET
Date: April 25, 2001 No. of Pages: I
To: Monica Loughlin From: Linda Lewis
Company: Tripp Engineering Water Quality Section - Stormwater
FAX #: [phone] FAX # [phone]
Phone# [phone]
DWQ Stormwater Project Number: SW8 010405
Project Name: Northgrove Evangelical Presbyterian Church
MESSAGE:
Dear Monica:
The chlorides testing option is very close to being reinterpreted. I've been told that technically, all of the old
directives were superseded by the rules in 1995. We are currently awaiting official verification of this. The review
status of projects that come in just before or immediately after the ruling is still being decided. At a minimum, you
will need the results of the chlorides test. It is possible that the chlorides test will not be accepted. In that event, you
will need to demonstrate that the project is at least 1/2 mile from SA waters (Pages Creek) and any unnamed
tributaries of SA waters. In order to do this, you will need a USGS map with the project and the receiving stream
or tributary shown, to scale.
Please provide a highlighted drainage area map, showing the overall drainage area to each pond.
The rules require that the owner sign the application, or an authorized representative. If Mr. Hodges is the
representative, please have the owner provide a signature authorization that includes the owners name, mailing
address and title, or have the owner sign the application.
How will the 36" flow leveler from the wetland work?"Fhe surrounding ground in that area is higher than the invert.
Please show all drainage ways on the plans.
What happens to the runoff from Outlet Structure 41 after it reaches the existing 60" CMP under Alexander Road?
Please show all drainage way on the plans.
Please add the nearest major intersection to the vicinity map, South College for example.
Please dimension the buildings, parking, drives, sidewalks, etc.
cc: Haven 1-lodges
S:\WQS\STORM WAI\ADDINFO\010405.APR
127 Cardinal Dr. Ext.,Wilmington,North Carolina 28405 Telephone [phone] FAX [phone]
An Equal opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper

DETENTION POND ANALYSIS FILE NAME: S:\WQS\POND\010405-1.WK1
PROJECT #: SW8 010405-1 REVIEWER: Lewis
PROJECT NAME: Northgrove Evangelical Pres. Church DATE: 17-Apr-2001
Receiving Stream: Pages Creek Class: SA Chlorides: ? ✓ r
Drainage Basin: Cape Fear Index No. 18-87-22
Site Area 12.70 acres
Drainage Area 231184.00°;square feet Area in Acre 5.31
IMPERVIOUS AREAS
Rational C
Building 27063.00 square feet
Parking 90520.00 square feet
SW 6224.00 square feet
square feet
square feet
square feet
TOTAL 123807 OO ssquare feet Rational Cc= 0.09
SURFACE AREA CALCULATION
% IMPERVIOUS 53.55% SAIDA Ratio 2.51%
Des. Depth 6.5 Req. SA 5810 sf
TSS: 90 Prov. SA C 6328',�sf
VOLUME CALCULATION ' place a "1" in the box if Rational is used
Rational ?' FOREBAY
Des. Storm 1.00 inches Perm. Pool Volume= 22410
IRv= 0.53 Req. Forebay Volume= 4482
Bottom 26.5 msl Provided Volume= 4506.00
Perm. Pool [ 33oolrnsl Percent= 20.1%f
Design Pool 34.65 msl
Design SA 8784 sf
Req. Volume 1,0249lcf SA @ _
Prov. Volume U4671 cf Elevation=
ORIFICE CALCULATION
Avg. Head = 0.80 ft Q2 Area = 1.98 in'
Flow Q2, cfs 0.059 cfs Q5 Area = 0.79 in'
Flow Q5, cfs 0.024 cfs Orifice Area 1.77 in
No. of Orifices "' 1 Q= 0.053 cfs
Diameter or 1.50 in
Weir Dimensions Drawdown = 2.21days
COMMENTS
Surface Area , Volume and Orifice are within Design Guidelines

DETENTION POND ANALYSIS FILE NAME: S:\WQS\POND\010405-2.WK1
PROJECT #: SW8 010405-2 REVIEWER: Lewis
PROJECT NAME: Northgrove Evangelical Pres. Church DATE: 17-Apr-2001
Receiving Stream: Pages Creek Class: SA Chlorides: ? 3��I
Drainage Basin: Cape Fear Index No. 18-87-22
Site Area 12.70 acres
Drainage Area square feet Area in Acre 0.99
IMPERVIOUS AREAS
Rational C
Building square feet
Parking 23551.00 square feet
SW square feet
square feet
square feet
square feet
TOTAL ;_23551 00]square feet Rational Cc= 0.09
SURFACE AREA CALCULATION
% IMPERVIOUS 54.65% SA/DA Ratio 3.87%
Des. Depth 5 Req. SA 1669 sf
TSS: 90 Prov. SA 4 { 4042,sf
VOLUME CALCULATION * place a "1" in the box if Rational is used
Rational ?' FOREBAY
Des. Storm I 1 00.' inches Perm. Pool Volume= 11265
IRv= 0.54 Req. Forebay Volume= 2253
Bottom 33 msl Provided Volume= 2100.00
Perm. Pool [ 38.00]msl Percent=
Design Pool 39 msl
Design SA 5084 sf
Req. Volume 1946 lcf SA @ _
Prov. Volume 4563' cf Elevation=
ORIFICE CALCULATION
Avg. Head = 0.48 ft Q2 Area = 0.49 in'
Flow Q2, cfs 0.011 cfs Q5 Area = 0.19 inz
Flow Q5, cfs 0.005 cfs Orifice Area 0.44 inz
No. of Orifices ( 1 Q= 0.010 cfs
Diameter or Ilf 0.75 in
Weir Dimensions Drawdown = 2.2 jdays
COMMENTS
Surface Area , Volume and Orifice are within Design Guidelines

TRIPP ENGWEERYNG, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] FAX: [phone]
10
�W� U g�CEIVED
April 6, 2001 APR 0 6 2001
NCDENR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: North Grove Evangelical Presbyterian Church
New Hanover County, NC
TE 01017
Dear Linda:
Enclosed please find two (2) sets of plans, one (1) signed original and one (1)
copy of the application form with narrative, two (2) wet detention basin supplements, two
(2) sets of calculations and one check for the application fee.
Please review for approval and contact us with any questions or comments.
Thank you.
Sincerely,
Tripp Engineering, P.C.
Monica V. Loughlin
MVL:dcb
Enc.

Stormwater Narrative
April 6, 2001
Re: North Grove Evangelical Presbyterian Church
New Hanover County
TE 01017
The total site area of this project is 12.7 acres. Two buildings are proposed, a sanctuary
and a family life center, totaling 27,063 sf of impervious surface area. An asphalt and
stone access and parking area for both buildings will total 114,071 sf. Concrete
sidewalks total 6224 sf A complete 147,358 sf of impervious area brings the total built
upon area to 26.64% impervious.
Stormwater runoff will be handled by a wet detention pond designed to exceed the states
requirement of the first one inch of runoff. This pond will drain to Pages Creek with a
classification of SA. A vegetated filter is not required due to the 90% TSS removal used
in the wet detention design.
RECEIVED
APR 0 6 2001
DWQ
PROJ # : WIO'U4-()S

4/6/01 Northgrove Evangelical Presbyterian Church 01017
CDC Pond#1
Stormwater Calculations
Draina a Area Impervious Area
s .ft. acres Land Use s .R. acres
proposed develo ment 231,184 5.31 Buildingarea 27.063 0.62
Total 231,184 5.31 Asphalt/Stone area 90,520 2.08
Concrete area 6,224 0.14
0.00
%impervious= 0.536 ITotal 1 123,807 2.84
= 53.6%
Use 54.0%
CPRE- 0.25
Stormwater Calculations: CPOST= I%imp.)(.95)+(1-%imp.)(.25)
0.63 \\ P (�CAq �� /��
Time of Concentration: ho= 6.30 iNhr \\\ O Nz
Hydraulic Length(L)= 1000 ft. I�= 7,79 in/hr ��\\\
change in Height(H5 4 ft.
To = (1- /H)' 1128 Flow for 50 year,6 hour Storm(Qeo): = iq SEAL
13.37 min. QPRE_ (CPRE)x([so)x(Area) 17374
10.34 offs 'dt R.
Flow for 10 year,6 hour Storm(Qro): aPg$r= (CPosr)x Osa)x(Area) i •Fit/ �Q:
!� • GINS:
[-QlPE_ (CPRE)x(Ito)x(Area) = 26.05 cfs ''' /AGREG.PyVC
\PcsT (CPo)x(Iro)sx(Area) Soil Storage Capacity for 50 year Storm: //'/ y�\
ty for cfs CN= (986.4 imp.for 5 0yr,6I imp.)
81
Soil Storage Capacity far 10 year Storm: P= 6.42 in. for 50 yr,6 hr storm
CN= (98)(%imp.)+(60)(1-%imp.) S= 1000/CN-10
= 81 = 2.35
P= 4.80 in. for 10 yr,6 hr storm Depth(D)= [P-(0.2)(S)]2/[P+(0.8)(S)] �Q\
S= 1000/CN-10 - 4.27 in.
= 2.35 `
Depth(D)= [P-(0.2)(S)]2 I[P+(0.8)(S)] Time to Peak Flaw: * i-
= 2.81 in. TP= [(43.5)(D)(Area)]/050.POST jJ(
37.83 min.
Time to Peak Flow:
TP= ((43.5)(D)(Area)]/Qioyosr
30.79 min.
771
State Surface Area Requirement at normal pooL
Detention Pond Design: Pond side slopes= 3 :1
Depth below N.P.= 6.5 ft.
Pond Size: SAMA= 0.0254
Elevation Surface Area (Chart for 90%TSS Removal for Wet Detention
R. s .ft. Pond without Vegetative Filter)
Normal Pool 33.00 6,328 Required SA= (SA/DA)x(Total Drainage Area)
State Flood Pool 34.65 8,784 - 5,872 sq.ft.
County Flood Pool 38.10 14,920
Top of Bank 39.50 17,410 State Volume Requirement for Store a of,,ft
1"of runoff:
Bottom of Pool 26.50 567 Vol.= [(1/12)x(DA)x(%imp.)]+
[(1/12)x(DA)x(1-%imp.)x C]
Total Provided City Storage Volume: C= 0.2
Vol._ [(Normal pool SA+Flood Pool SA)/21 = 12,107 cu.R.
x(F.P.elev.-N.P.elev.)
54,182 cu.ft. Provided Storage Volume for State Re uirement:-71
State Vol.= 12,467 cu.R.
City Storage Required for 10 year Storm: City Storage Required for 50 year Storm:
TP= Vol./(1.39)(QP) TP= Val./(1.39)(Qp)
Vol.= (TP)(1.39)(QP)(60 sec.) Vol.= (Tp)(1.39)(QP)(60 sec.)
OP= 010,POST-Q10.PRE CIP= QSaPOST-Q5a,PRE
12.71 cfs = 15.71 cfs
Vol.= 32,626 cu.ft. Vol.= 49,571 cu.R. $aV
� CEI V ��
APR 0 6 2001
swales3 1 of 2 DWg
PROJ# �W S�gO 4CJS

4/6/01 Northgrove Evangelical Presbyterian Church 01017
CDC Pond#1
Stormwater Calculations
Forebay:
Required Volume Provided Volume
Vol.= 20%of pond storage volume Bottom Pool SA= 752 sq.ft.
4,482 cu.R. Normal Pool SA= 2,252 s .ft.
Vol._ [(N.P.SA+F.P.SA)/2]x(F.P,el.-N.P.el.)
4,506 cu.ft.
depth= 3 ft.
Outlet Structure Design:
Flow for 2-day drawdown: Flow for 5-day drawdown:
for 1st 1"of stormwater, for 1 st 1"of stormwater,
O= Required State Vol./172,800 sec.(2-days) O= Required State Vol./432,000 sec.(5-days)
0.070 cfs — 0.028 cfs
Required Area of Pipe for 2-day drawdown: Required Area of Pipe for 5-day drawdown:
A= O I(Cd x SORT(2 x g x h)] A= O/[Cd x SORT(2 x g x h)]
Cd= 0.6 Cd= 0.6
9= 32.2 ft./s' 9= 32.2 ft./s'
In= F.P.elev.-N.P.elev.)/2 h= (F.P.elev.-N.P.elev.)/2
0.825 ft. = 0.825 ft.
A= 0.0160 s .ft. A= 0.0064 s .R.
Diameter of Pipe for 2-day drawdown: Diameter of Pipe for 5-day drawdown:
SO RT[(A x 4)/pi] DIA.= SORT[(A x 4)
= 0.1428 ft. = 0.0903 R.
1.71 in. — 1.08 in.
USE 1.5"ORIFICE
Outlet Structure Check:
Using a 4'x 4' Basin,
Perimeter(L)=
O= CIA
C= I%imp.)(.95)+(1-%imp.)(.25)
0.63
1= 6.30 in.for a 10 yr.Storm
A= 5.31 Acres
21.06 cfs
O= Cwx Lx H''s
H= [O/(Cw x L)]�
Cw= 3
0.58 ft.
Peak elevation- Rood pool elevation+H
38:68 ft.
swales3 2 of 2

415101 Northgrove Evangelical Presbyterian Church 01017
CDC Pond#2
Slormwater Calculations
Drainage Area Impervious Area
s .ft. acres Land Use s .ft. I acres
proposed development 43,093 0.99 Buildingarea 0 0.00
Total 43,093 0.99 Asphalt/Stone area 23,551 0.54
Future Impervious 0 0.00
0.00
%impervious= 0.547 ITotal 1 23.551 0.54
= 54.7%
Use 55.0%
CPRE- 0.25
Stormwater Calculations: CPosr= (%imp.)(.95)+(1-%imp.)(.25)
0.64
Time of Concentration: 110= 6.30 in/hr
Hydraulic Length(L)= 1000 ft. Iso= 7.79 in/hr
change in Height(H)= 4 ft.
To = (LS/H)Je91 128 Flow for 50 year,6 hour Storm(Q50):
= 13.37 min. OPRE_ (CPRe)x(150)x(Area)
= 1.93 cfs
Flow for 10 year,6 hour Storm(Qlo): QPcsr= (CPosr)x(1so)x(Area)
OPRE= (CPRE)x(110)x(Area) - 4.93 cfs
1.56 cfs
QPes.,= (CPosr)x(It0)x(Area) Soil Storage Capacity for 50 year Storm:
- 3.99 cfs CN= (98)(%imp.)+(60)(1-%imp.)
= 81
Soil Stora a Ca acil for 10 ear Storm: P= 6.42 in. for 50 yr,6 hr storm
CN= (98)(°h imp.)+(60)(1-%imp.) S= 1000/CN-10
81 = 2.35
P= 4.80 in. for 10 yr,6 hr storm Depth(D)= [P-(0.2)(S)]2/[P+(0.8)(S)]
S= 1000/CN-10 - 4.27 in.
2.35
Depth(0)= [P-(0.2)(S)f/[P+(0.8)(S)] Time to Peak Flow:
2.81 in. TP= [(43.5)(D)(Area)]/QSe,POF
37.24 min.
Time to Peak Flow:
TP= [(43.5)(D)(Area)]/Q1g
- 30.31 Posr
min.
State Surface Area Requirement at normalpool:
Detention Pond Design: Pond side slopes= 3 :1
Depth below N.P.= 5 ft.
Pond Size: SA/DA= 0.0390
Elevation Surface Area (Chart for 90%TSS Removal for Wet Detention
ft.) s .ft. Pond without Vegetative Filter)
Normal Pool 1 38.00 4.042 1 Required SA= (SAIDA)x(Total Drainage Area)
State Flood Pool 39.00 5,084 = 1,681 s .ft.
County Flood Pool 40.00 ME
To of Bank 41.Do 8,014 State Volume Requirement for Stora a of first 1"of runoff:
Bottom of Pool 33.00 457 Vol.= [(1/12)x(DA)x(%imp.)]+
[(1/12)x(DA)x(1-%imp.)x Cl
Total Provided City Storage Volume: C= 0.2
Vol._ [(Normal pool SA+ Flood Pool SA)/2] = 2,288 cu.ft.
x(F.P.elev.-N.P.elev.)
10,251 cu.ft. Provided Storage Volume for State Re uirement:
State Vol.= 4,563 cu,n.
City Storage Required for 10 year Storm: City Storage Required for 50 ear Storm:
TP= Vol./(1.39)(QP) TP= Vol./(1.39)(0p)
Vol.= (TP)(1.39)(QP)(60 sec.) Vol.= (Tp)(1.39)(QP)(60 sec.)
QP= 010,POV-010,PR5 QP= Qe],POS -Q50,PRE
2.43 cfs = 3.01 cfs
Vol.= 6,144 cu.ft. Vol.= 9,335 cu.ft.
CityPOND2 1 of 2

415/01 Northgrove Evangelical Presbyterian Church 01017
CDC Pond#2
Stormwaler Calculations
Foreba :
Required Volume Provided Volume _
Vol.= 20%of pond storage volume Bottom Pool SA= 467 sq.ft.
2,250 cu.ft. Normal Pool SA= 988 s .ft.
Vol._ [(N.P.SA+F.P.SA)/2]x(F.P.el.-N.P.el.)
2,183 cu.ft.
depth= 3 ft.
Outlet Structure Design:
Flow for 2-day drawdown: Flow for 5-day drawdown:
for 1st 1"of stormwater, for 1st 1"of stormwater,
Q= Required State Vol.1172,800 sec. (2-days) Q= Required State Vol.1432,000 sec.(5-days)
0.013 cis — 0.005 cfs
Required Area of Pipe for 2-day drawdown: Required Area of Pipe for 5-day drawdown:
A= Q/(Cdx SQRT(2xgxh)] A= Q/[Cdx SQRT(2xgxh)]
Cd= 0.6 Cd= 0.6
9=
32.2 ft Is 9=
� 32.2 ft./s2
In= (F.P.elev.-N.P.elev.)/2 h= (F.P.elev.-N.P.elev.)12
= 0.5 ft. — 0.5 ft.
A= 0.0039 s .ft. A= 0,0016 s .ft.
Diameter of Pipe for 2-day drawdown: Diameter of Pipe for 5-day drawdown:
DIA.= SQRT[(A x 4)/pi] DIA.= SQRT[(A x 4)/pi]
= 0.0704 ft. _ 0.0445 ft.
0.84 in. — 0.53 in.
USE.75"ORIFICE
Outlet Structure Check:
Using a 4'x 4'Basin,
Perimeter L = 16 ft.
Q= CIA
C= (%imp.)(.95)+(1-%imp.)(.25)
= 0.64
1= 6.30 in.for a 10 yr.Storm
A= 0.99 Acres
3.99 cis
Q= Cwx Lx H"
H= [Q/(Cw x L)]°
Cw= 3
0,19 ft.
Peak elevation= Flood pool elevation+H
40.19 ft.
CityPOND2 2 of 2