SW8980819_HISTORICAL FILE_19990616

STORMWATER DIVISION CODING SHEET
POST-CONSTRUCTION PERMITS
PERMIT NO. SW8 Rgo S Lq
DOC TYPE ❑ CURRENT PERMIT
❑ APPROVED PLANS
2'HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE 161W o(o t&
YYYYMMDD

State, of -North Carolina
Department of Environment
and Natural Resources 4 •
Wilmington Regional Office _
James B.MHunt,cDevitt,
Governor N C®EN R
Rayne McDevitt,, Secretary NORTH CAROLINA DEPARTMENT OF
Division of Water Quality ENVIRONMENT AND NATURAL RESOURCES
.Tune 16, 1999
Mr. Arthur Ricks, Chairman
Castle Hayne Baptist Church Building Committee
4535 Parmele Road
Castle Hayne, NC 28429
Subject: Permit No. SW8 980819
Castle Hayne Baptist Church
High Density Stormwater Project
Dear Mr. Ricks: New Hanover County
The Wilmington Regional Office received a complete Stormwater Management Permit Application for Castle
Hayne Baptist Church on April 26, 1999. Staff review of the plans and specifications has determined that the
project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are
forwarding Permit No. SW8 980819 dated June 16, 1999, for the construction of Castle Hayne Baptist Church.
This permit shall be effective from the date of issuance until June 16, 2009, and shall be subject to the conditions
and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements
in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management
system will result in future compliance problems.
If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an
adjudicatory hearing upon written request within thirty (30)days following receipt of this permit. This request must
be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed
with the Office of Administrative Hearings, P.O. Drawer 27447. Raleigh, NC 27611-7447. Unless such demands
are made this permit shall be final and binding.
If you have any questions, or need additional information concerning this matter, please contact Linda Lewis, or
me at [phone].
Sincerely,
Rick Shiver
Water Quality Regional Supervisor
RSS/arl: S:\WQS\STORMWAT\PERMIT\980819.,UN
cc: John Klein. P.E.
Tony Roberts, New Hanover County Inspections
Beth Easley, New Hanover County Engineering
Linda Lewis
Wilmin2t on Regional Office
Central Files
127 Cardinal Dr. Est.,Wilmington,North Carolina 28405 Telephone [phone] FAX [phone]
An Equal opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper

State Stonmvater Management Systems
Permit No. SW8 980819
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
STATE STORMWATER MANAGEMENT PERMIT
HIGH DENSITY DEVELOPMENT
i;
In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and l
other applicable Laws, Rules, and Regulations
PERMISSION IS HEREBY GRANTED TO
Castle Hayne Baptist Church Building Committee
Castle Hayne Baptist Church
New Hanover County
FOR THE
is
construction, operation and maintenance of a wet detention pond in compliance with the provisions of 15A NCAC i.
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 16, 2009 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 control has been designed to handle the runoff from
138,638 square feet of impervious area.
3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts
of the permit:
4. The tract will be limited to the amount of built-upon area indicated on page 3 of this permit, and per
approved plans.
2

State Stormkvaier Management Systems
Permit No. S WS 9Ros i g
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name: Castle Hayne Baptist Church
Permit Number: S W 8 980819
Location: New Hanover County
Applicant: Mr. Arthur Ricks, Chairman
Mailing Address: Castle Hayne Baptist Church Building Committee
4535 Parmele Road
Castle Hayne, NC 28429
Application Date: April 26; 1999
Water Body Receiving Stormwater Runoff: Prince George Creek (CFR 18-74-53)
Classification of Water Body: "C Sw"
If Class SA, chloride sampling results: n/a
Pond Depth, feet: 6'
Permanent Pool Elevation, FMSL: 22
Total Impervious Surfaces, ftl: li8,638
Offsite Area entering Pond, ft2: None, per Engineer
Required Surface Area, ft': 7,745
Provided Surface Area, ft': 7,818
Required Storage Volume, ft': 11,244
Provided Storage Volume, ft': 13,204
')temporary Storage Elevation, FMSL: 23.5
Controlling Orifice: 1.75"(� pipe
3

State Stormwater Management Systems
Permit No. SW8 980819
II. 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 except roads.
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. . 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.
9. Prior to the sale of any portion of the property, an access/maintenance easement to the stormwater facilities
shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale
of any portion of the property.
10. The permittee is responsible for verifying that the proposed built-upon area does not exceed the allowable
built-upon area.
11. The runoff from all built-upon area on the project must be directed into the permitted stormwater control
system.
12. 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.
4

State Stormwater Management Systems
Permit Wo. SW8 980819
13. The following items will require a modification to the permit:
a. Any revision to the approved plans, regardless of size.
b. Project name change.
C. Transfer of ownership.
d. Redesign or addition to the approved amount of built-upon area.
e. Further subdivision of the project area.
f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan.
14. The Director may determine that other revisions to the project should require a modification to the permit.
15. 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 minimurn requirements. The permittee shall
provide copies of revised plans and certification in writing to the Director that the changes have been made.
III. 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 permit request must be submitted to the Division of Water
Quality accompanied by an application fee, documentation from the parties involved, and other supporting
materials as may be appropriate. The approval of this request will be considered on its merits and may or
may not be approved.
2. Failure to abide by the conditions and limitations contained in this permit may subject the 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.
Permit issued this the 16th day of June, 1999.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
1� Kerr. T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 980819
5

State Stormwater Management Systems
Penn it No. SW8 980819
Castle Hayne Baptist Church
Stormwater Permit No. SW8 980819
.New Hanover County
Designer's Certification
1, as a duly registered
in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction
of the project,
(Project)
for (Project Owner)hereby state that,to the best of my abilities, due care
and diligence was used in the observation of the project construction such that the construction was observed to be
built within substantial compliance and intent of the approved plans and specifications.
The checklist of items on page 2 of this form is included in the Certification.
Noted deviations from approved plans and specification: f.
1
SEAL
Signature
Registration Number
Date
6

State Stormwater Management Systems
Permit No. SW8 980819
Certification Requirements:
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.
3. All the built-upon area associated with the project 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.
6. Trash rack is provided on the outletibypass 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.
11. Required drawdown devices are correctly sized per the approved plans.
12. All required design depths are provided.
13. 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
Tony Roberts, New Hanover County Building Inspector
7

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ate eceive ee Paid Fenrut Number
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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):
CAS'R.E' KA`f N5- F3 APTTS-T N,i*CA
2. Print Owner/Signing Official's name and title (the person who is legally responsible for the facility and
its compliance):CASTLE 4A"NfigA"%'.T 6*k\JA0A /aly-TM,vfs R%Ct% CMAtRHAN OF (�J�G,
CortH�TTEE
3. Mailing Address for person listed in item 2 above:
ASV; PARS, SEE ROM>
City fASTt_E F-�A- State: NC Zip: �AZ9
Telephone Number. ( 910 1 ZS�- OOZ1
4. Project Name (subdivision, facility, or establishment:name.;should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
(.ASTIR �A`tNE APT�5T C41�Ti�-N
5. Location of Facility (street address):
h535 PnatiF�� ROAS> •-
Oty. CASTI� HA`iW6 _ """`7 t�EW aANOVE
. 6. Directions to facility (from nearest major intersection)___
__..
So.m1WEKf in7'149t_SEC'�wnL Clr 1�' hRt+1E��E t�I.O AtJO o� (o �p,Stj
w
7. Latitude Je C) Longitude: —i`�o 5i3i of facility
8. Contact`persoii'who can answer questions about the facility:
Nacre /�tzta�lG R IcCS' Telephone Number: ( %0 1 ZSfo—OOZ\
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 pemrit number wi A and its issue date(if known) to /Is,
Form SVdC.-101 January 1998 Pase 1 of 4

3. Specify the type of project(check one): ;
_Low Density f High Density _Redevelop _General Permit _Other
4. Additional Project Requirements (check applicable blanks):
_CAMA Major ✓Sedimentation/Erosion Control 404 Permit
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.
Ro. c�a( of Swrtw�wa reTt wTn P'otJt'
C7A PC-n
2. Stormwater runoff from this project drains to the River basin.
3. Total Project Area: "1.9(a acres 4. Project Built Upon Area: (a8.2
5. How many drainage basins does the project have? 1
6. Complete the following information for each drainage basin. If there are more than two drainage basins in
the project, attach an additional sheet with the information for each basin provided in the same format as
below.
Basic 1hformation - `< _ , - ; ;,I3iaiiia a Basin'.;*1 . '' ,Diaifta Basin 2"_A4 -
Receiving Stream Name N Cameo'
-Teceiving Stream Class Sw
Drainage Basin Area c
Existing Impervious*Area 6
Proposed Im ervious"Area SAS ac.
% Impervious* Area (total)
Ixii ervious'.Sticface.Area=. Drainage,Basiri 13 <. ,` ar , ` Drainage,B6in,2n:
On-site Buildings a
On-site Streets
On-site Parkin Ac-
On-site.Sidewalks p, c
— -
y. Other.on-site --
Off-site
Total: F= 3.\8 Aa F=
Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking
areas, sidewalks, gravel areas, etc.
7. How was the off-site impervious area listed above derived? Oatz E FMW 6a Jte rr*_-D -rWAb%JWA
PRo�ECT
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
Deed restrictions and protective covenants are required to be recorded for all low density projects and all
subdivisions prior to the sale of any lot. Please see Attachment A for the specific items that must be recorded.
Form SWU-101 January 1998 Paee 2 of 4

By your signature below,you certify that the recorded deed restrictions and protective covenants for this project
shall include all the items required by the permit, that the covenants will be binding on all parries 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.
VI. AGENT AUTHORIZATION
If you wish to designate submittal authority to another individual or firm so that they may provide
information on your behalf, please complete this section:
Designated agent(individual or firm): KLE1tS ENEr\ VtiN4 ANA Asio �NTFS
MailingAddness: 3Z2 - e 4 rt\ S,s�EET
city State: Zip: 28«ot
-
Phone: ( 910 1 763-`lgOo Fax:
VII. SUBMITTAL REQUIREMENTS
This application package will not be accepted by the Division of Water Quality unless all of the applicable
items are included with the submittal.
1. Please indicate that you have provided the following required information by signing your initials in the
space provided next to each item.
Applic Initials
• Original and one copy of the Stormwater Management Permit Application Form
• One copy of the applicable Supplement Form(s) for each BMP (see Attachment A) X
• Permit application processing fee (see Attachment A) x
• Two copies of plans and specifications including: Y.
• Detailed narrative description of stormwater treatment/management y
• Two copies of plans and specifications,including: ri
-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,parking, cul-de-sacs, sidewalks;and curb and gutter
-Wetlands delineated, or a note on plans that none exist
- Existing drainage (including off-site), drainage easements, pipe sizes, runoff calculations
- Drainage basins delineated
- Vegetated buffers (where required)
V. APPLICANT'S CERTIFICATION
1,(print or type name of person listed in General Information,item 2) Qti'M'JR R\G%.&
certify that the information included on this permit application form is correct, that the project will be
constructed in conformance with the approved plans, that the deed restrictions in accordance with Attachment
A of this form will be recorded with all required permit conditions, and that to the best of my knowledge the
proposed pro). comph with the requirements of 15A NCAC 2H .1000.
Signature x Date k /1/98
Title: GHA\RMAN OT ?Z %% . Ayla (6NM\-t"1'EE
Form SP7[J-10J January 1998 Page 3 of 4

ATTACHMENT A ;
O '
1. Deed Restriction Language
The following statements must be recorded for all low density projects and for all projects that involve the
subdivision and selling of lots or outparcels:
1. No more than _ square feet of any lot, including that portion of the right-of-may between the
edge of pavement and the front lot line, shall be covered by impervious structures including
asphalt, gravel, concrete, brick, stone, slate or similar material but not including wood decking or
the surface of swimming pools. This covenant is intended to insure continued compliance with the
stormwater permit issued by the State of North Carolina. The covenant may not be changed or
deleted without the consent of the State.
2. No one may fill in, pipe, or alter any roadside Swale except as necessary to provide a minimum
driveway crossing.
NOTE: If lot sizes vary significantly, the owner/developer must provide an attachment listing each lot
number, size and the allowable built-upon area for each lot.
For commercial projects that have outparcels or future development the following statements must also be
recorded:
3. The connection from the outparcel or future area into the stormwater system must be made into the
forebay such that short-circuiting of the system does not occur.
4. All built-upon area from the outparcel or future development must be directed into the permitted
stormwater control system.
5. Built-upon area in excess of the permitted amount will require a permit modification prior to
construction
For curb outlet systems,the following statement in addition to items 1 and 2 above must be recorded:
6. No one may pipe,fill in or alter any designated 100 foot long grassed Swale used to meet the
requirements of NCAC 2H .1008(g).
2. Supplement Forests
The applicable supplement form(s) listed below must be submitted for each BMP specified for this project:
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 Nutrient Management Strategy Supplement
3. Permit Application Fees (check made payable to NCDENR and submitted to the appropriate Regional
Office)
Type of Permit New, Modification, or Timely Renewal Without
Late Renewal Modification
Low Density $225 n/a
High Density $385 $225
Other $225 n/a
Directors Certification $350 n/a
General Permit' $50 n/a
Form SWU-101 lanuary 1948 Paee 4 of 4

nE Cl. EIVE
lupus
AUG 121998 D
CASTLE HAYNE BAPTIST CHURCH PROD # S W M0b-3iq
STORM WATER MANAGEMENT OPERATION AND MAINTENANCE PLAN
L GENERAL
The project area will contain improvements which will require perpetual maintenance and include
a storm water management system which relies on the treatment of surface runoff through the use
of both vegetative swales and a detention pond facility.
Permitting, construction and final ownership of the detention pond will be by the CHURCH.
2. OPERATION OF WET DETENTION POND SYSTEM
A. GENERAL: The detention pond is intended to provide some measure of sediment and nutrient
filtration within the vegetation along the pond perimeter as well as promoting infiltration of runoff
into the subsurface groundwater.
The use of a pond allows a more intensive built-upon area to be developed and is a permitted
method for stormwater treatment in compliance with the State of North Carolina Administrative
code Section 15 NCAC 2H.1000, Stormwater Runoff Disposal.
B. MAINTENANCE RESPONSIBILITIES: Routine maintenance as detailed below is required
for each of the detention ponds. To provide for this, the CHURCH shall be responsible for all
required maintenance. In lieu of performing the direct maintenance, the CHURCH may contract
this service to an independent maintenance entity; however,all responsibilities for enforcing these
restrictive covenants shall reside with the CHURCH.
C. DETENTION POND SYSTEM MAINTENANCE: As a minimum, the following
maintenance procedures shall be followed for each pond:
(1) General: Side slopes shall be kept mowed and clear of debris. Vegetation shall be kept to a
maximum height of eight(8) inches and mowing shall be scheduled accordingly.
(2) Upon Completion of Construction:
(a) Any sediment deposited in detention pond shall be removed to obtain design depth, slopes and
specifications.

Page Two
Operation and Maintenance Plan
Castle Hayne Baptist Church
(b) The wetted perimeter shall be planted with water resilient vegetation appropriate to soil and site
characteristics; the remaining pond slopes shall also be vegetated and planted with vegetation
appropriate to soil and site characteristics. All slopes shall be maintained to ensure growth of such
vegetations.
(c) All drainage features shall be inspected and cleaned of sand, silt or foreign materials. These
features include, but not limited to, the pond outlet structure trash screen, outlet orifice and site
drop inlet and catch basin grates.
(d) Any component which is determined to be not performing satisfactory in its intended usage
shall be repaired or replaced to original design specifications.
(3) Monthly or After Each Runoff Producing Rain:
(a) Any sloughing,erosion or vegetative wash-out of the pond slopes shall be repaired immediately.
(b) All drainage features shall be inspected and cleaned of trash or foreign materials. These
features include the pond side slopes,pond outlet structure trash screen,outlet orifice and site drop
inlet and catch basin grates.
(c) Any component which is determined to be not performing satisfactory in its intended usage shall
be repaired or replaced to original design specifications.
(4) Semi-Annually:
(a) The detention pond shall be checked for siltation and filling. Should the bottom elevation
exceed the design bottom elevation, the pond shall be excavated six (6) inches below the design
elevation to allow solids accumulation due to siltation and filling. The detention pond bottom has
been established at a depth of 6.1 feet below the normal pool elevation.
CHAIRMAN OF BUILDING COMMITTEE
Arthur Ricks
Castle Hayne Baptist Church
4535 Parmelee Road (Signature)
Castle Hayne,NC 28429
Phone: [phone]
(Date)

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tip
• KLEIN ENGINEERING AND ASSOCIATES
1 ,
PROJECT: Castle Hayne Baptist Chureh PROJECT NO.: 96WS
CLIENT: Randall Bray Architect DATE: July 1998
LOCATION: New Hanover County,NC PREPARED BY: JKK
SUBJECT: Stormwater Calculations
GIVEN: Design for single collection pond.
TOTAL PROJECT AREA= 348700 SF = 7.96 Ac
Area draining to pond= 203190 SF = 4.66 Ac
Grassed areas not collected= 143510 SF = 3.29 Ac
Design Storm Event=10-year, 5 minute duration
Rainfall intensity= 7.23 inches/hour
Runoff Coefficients used for Design:
Impervious Area= 0.95
Turf(developed)= 0.25
PostcoraWction:
Impervious= 138638 SF x 0.95 = 131706
Turf= 64552 SF x 0.25 = 16138
Totals 203190 SF = 4.66 Ac 147844
Weighted C= 0.73
1. Summary of Drainage Areas
AREAS DRAINING
TO POND STORM WATER
❑ ATER
AREA AREA
TYPE (SF) (AC)
BLDG 3 0.724n E C E I V E r�
SIDtIV 6823 6823 0.157 157 �u�nl�jf U
PVMNT 100260 2.302
TOTALIMPERV. 138638 3.18 APR 2 6 1999
TURF 64552 1.48 D E M
#
TOTALS 203190 4.66 PROJ
Pond Design Criteria:
Percent Built-Upon:= 3.183 Ac / 4.665 Ac =
68.2 % use: 70 %
2. DETENTION POND DESIGN: '
Design to store the fust Lynch of runoff from project area
Imperv. 1.00 x 138638 SF x 1717 = 11553
Turf 0.25 x 64552 SF x 1712" = 1345
12898 CF
Based on state requirements for ponds without vegetative filter
and using the design impervious percent of 70 with a depth of 6.1
fee4 the ratio of surface area(SF)to drainage area to drainage area(DA)= 3.80
Therefore,required pond surface area(SA)is:
3.80 x 4.66 /100= 0.18 Acres
7721 SF Use: 7818 SF
Pond Wx9h at Design Surface: see plan
Pond Length at Design Surface: we plan
AVE. CUMUL. �,' ,x�pannprrq♦
AREA AREA VOLUME VOLUME C' �.V' CARQ ♦♦♦♦
ELEV. (SF) (SF) (CF) (CF) r ��N CAB '�°
�� ESSI ;yam 9 '•,
15.9 455 16025 (Pond Design Bottom)
645 709 ••
17.0 835 15316
1114 1114 R �
Castle Hayne Baptist Church-DWO Stormviater Calculations(Rev.4-22-99) ♦ /y �.

• KLEIN ENGINEERING AND ASSOCIATES
18.0 1393 14202
W82 1782
19.0 2171 12420
2664 2664
20.0 9 56 9756
3713 3713
21.0 4269 60"
6044 60"
22.0 7818 0 (Design Area)
8473 8473
23.0 9127 8473
9788 9788
24.0 10"8 18260
25.0 11818 29393
.Depth where storage requirement met 23.45
Depth of Required Storage: 1.45 VF or 17.4 Inches
EJevation ot`iop of kner. 23.50
Depth of Storage Provided: 1.50 VF or 18.0 Inches
Volume of Storage Provided: 13366 CF
3. Restrictive Orifice Design:
Design once for discharge allowed using the following equation
O=CxAx(2gh)"0.5 where: O=CFS
C=orifice coefficient
A=orifice diameter(SF)
g=32.2 ftlsec2
h=pressure head(ft)
Rearranging the above equation to solve for hole diameter
A=0/C x(2ghn.5
For our type of discharge,C= 0.60
Pond Outlet Invert= 22.00
Design Storage Level= 23.50
Ave Reqd Storage Level= 22.75
Trial Orifice Diameter= 1.75 inches
Orifice centedine= 22.07
Ave.Pressure Head(h)= 0.68
Allowable discharge rate:
Design discharge so that ponds drain between two(2)day and five(5)days.
Pond Volume: 13366 CF Pond Volume: 13366 CF
Time to drain: 2 days Time to drain: 5 days
or 172800 sec or 432000 sec
Therefore,release rate= Therefore,release rate=
13366 CFS / 172800 sec 13366 CFS / 432000 sec
or 0.077 CFS or 0.031 CFS
A= 0.0195 SF A= 0.0078 SF
1.9 inches 1.2 inches
Use: 1.75 "
Orifice Area= 0.0167 SF
Design Average Release Rate= 0.066 CFS
Design Time to Drain m 2.3 Days
4. Forebay Design Requirements:
Design forebay for 20 %of the total permanent pool volume
Design Storage Volume= 16025 CF(see above)
Required Forebay volume= 3205 CF
AVE. CUMUL.
AREA AREA VOLUME VOLUME
ELEV. (SF) (SF) (CF) (CF)
17.0 18 0
68 68
18.0 117 68
226 226
19.0 334 293
496 496
Castle Hayne Baptist Church-DWO Stormwater Calculations(Rev.4-22-99)

• KLEIN ENGINEERING AND ASSOCIATES
r 20.0 658 789
852 852
21.0 1045 1641
1583 1583
22.0 2120 3223
Therefore,design forebay volume= 3223 CF or 20 %or Storage Volume
5. Pond Outlet Design
Design pond outlet pipe to convey runoff in excess of 1-inch generated from a 10-year storm event
Tc Rate Depth
(min) (inlhr) (in) Comments
5 7.23 0.6 less than pond storage
10 6.3 1.1 approx.pond storage
15 5.45 1.4 exceeds storage use
Q=CxixA C= 0.73
i= 5.45 infir
A= 4.66 Ac
Q e 18.6 CFS
REQ'O DESIGN
RUNOFF DW SLOPE SLOPE LENGTH UPPER LOWER
(CFS) (IN) (%) (%) (LF) INVERT INVERT Comments
18.5 18 3.10 3.10 30 21.50 20.57
24 0.67 0.70 30 21.00 20.79 um
6. STORM DRAINAGE DESIGN: 10-Year,5-Minute Storm,i= 7.23 Inlhr
UPPER LOWER DRAIN DRAIN
INLET INLET LENGTH TOP OF AREA AREA RUNOFF
NO. NO. OF) GRATE C (SF) (AC) (CFS)
A FES 54 25.0 0.73 3900 0.09 0.47
B A 180 25.0 0.73 12040 0.28 1.45
C B 160 25.0 0.73 14470 0.33 1.75
D C 104 25.5 0.73 12630 0.29 1.53
E D 150 25.5 0.73 14950 0.34 1.81
F E 120 25.5 0.73 26800 0.62 3.24
G F 152 25.5 0.73 16000 0.37 1.93
H B 96 25.0 0.73 8610 0.20 1.04
I H 84 25.5 0.73 22180 0.51 2.68
J I 150 25.5 0.73 23350 0.54 2.82
K 1 146 26.0 0.73 20260 0.47 2.45
Totals 175190 4.02 21.2
Pond areas with no buih-upon 28000
Total Collection Area= 203190 SF = 4.66 Ac
Note: Pipes based on RCP%fth n=0.013.
7. Overflow Weir Design for Forebay and Pond Emergency Spillway
Design Overflow Weir based on 25-year,10-minutes storm which produce a volume
in excess of one(1)inch.
Q=CxixA C= 0.73
i= 7.13 inRu
A= 4.66 Ac
Q. 24.2 CFS
Design weir to=may entire flow. Set weir invert above storage level.
weir equation: Q=C x H-32 x(L-0.2H) where:
Q=CFS
C=weir coefficient= 3.33
L=weir leafth(FT)=2 x H(min)
H=head(FT)
rearranging and solving for weir length yids the following:
L=(Q/Cx HA32)+0.2H
Castle Hayne Baptist Church-DWQ Stormwater Calculations(Rev.4-22-99)

• KLEIN ENGINEERING AND ASSOCIATES
G Design weir capacity= 24.2 CFS
Design weir depth= 9 - = 0.75 FT
Therefore,required weir length=
11.34 FT use: 12 FT
8. Summary:
Required Pond Surface Area= 7721 SF
Design Pond Surface Area 7818 SF
Required Storage Volume= 12898 CF
Design Storage Volume= 13366 CF
Orifice Invert= 22.00
Required Storage Elev.= 23.45 Depth= 1.45 VF
Design Storage Elevation= 23.50 Depth= 1.50 VF
Pond Invert= 15.90
Outlet Orifice Diameter= 1.75 "
Ave Discharge Rate= 0.066 CFS
Anticipated drawdown time= 56.1 Hours = 2.3 Days
Castle Hayne Baptist Church-DWO Stormwater Calculations(Rev.4-22-99)

KLEINRECEIVED
1� l M ENGI EE G APR , s snn 10 Wrightsville Avenue
El AND ASSOCIATES "(910)799 96740�
BY: —1 FAX [phone]
April 22, 1999 File No.: 96005
Ms. Linda Lewis
NCDENR, DWQ
127 Cardinal Drive Extension
Wilmington,NC 28405-3845
Re: Castle Hayne Baptist Church, New Hanover County
Stormwater Project No.: SW8 980819
Dear Ms. Lewis:
As per your letter of request for additional information dated November 6", 1998, please find
enclosed revised submittal items for the above referenced project. Included are:
completed original and one (1) copy of the updated wet detention basin supplement
revised original and one (1) copy of the updated O&M Plan
two (2) copies of revised Calculations
two (2) copies of revised applicable Drawings
Revisions include the following:
1. We make note of and accept your comments regarding project drainage basin as well as
corrections to the summary tabulation as per item 1. of your letter.
2. The checklist has been revised to reflect providing the emergency pump as well as initialing the
blank for pool depth as per item 2. of your letter.
3. The O&M Plan has been revised to include Monthly inspections as requested.
4. Forebay volume has been recalculated and Drawings revised accordingly.
5. Pond section has been moved to the pond detail sheet and updated to include forebay and
included depths,slopes,etc.as requested. Detailed pond plans have been updated to reflect forebay
modifications (item 4 above).
We hope the enclosed items is found satisfactory. Should there be any questions concerning the
enclosed items or additional copies desired, please contact our office.
Sincerely,
KLEIN ENGINEERING AND ASSOCIATES
gxcc�—> -,
HN K. KLEIN, PE
enclosures

® KLEIN ENGINEERING 322 South 4th Street
AND ASSOCIATES w°(M)es 900401
December 8, 1998 File No.: 96005
Ms. Linda Lewis
NCDENR
Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Re:Castle Hayne Baptist Church, New Hanover County
Engineered System Submittal; Stormwater Project No.: SW8 980819
Dear Ms. Lewis:
As requested in your letter dated November 6, 1998, we are in the process of updating the project
as requested. However, during the course of NCDOT review, it is still in question as to whether
a turn lane will be needed to serve the project. Therefore, we request an extension for resubmittal
of the needed changes so our office can address these needs. Upon resolution of the NCDOT
review, we will update both plans and applications as deemed appropriate.
We apologize in not notifying your office earlier; however, we felt that the NCDOT comments
would be forthcoming which has not been the case.
Sincerely,
K E EERING AND ASSOCIATES
K. KL) 1N, pr

State of North Carolina
Department of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor NCDENR
Wayne McDevitt, Secretary NO CAROLI A DEPARTMENT OF
Division of Water Quality ENVIRONMENT AND NArURA RESOURCES
1 ♦♦ November 6. 1998
Mr. John Klein, P.E.
Klein Engineering and Associates
322 South Fourth Street
Wilmington, NC 28401
Subject: ACkNOWLEDGEMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
StormwatenProject No. SW8 980819
Castle Hayne Baptist Church
New,Hanover County.
Dear Mr. Klein:
The Wilmington Regional Office received a Stormwater Management Permit Application for Castle
Hayne Baptist Church on August 12, 1998. A preliminary review of that information has determined that
the application is not complete. The following information is needed to continue the stormwater review:
1. Several areas on the application have been-filled in incorrectly. Section III, No. 2: the River
Basin that this project drains to is the Cape Fear, not Prince George. There are only 5 or 6
basins in the coastal counties. Section III,,No. 6: the percent impervious area is 68.2%, not
3.18 acres. I have made the corrections. Please indicate your acceptance of these changes
in writing.
2. The checklist on the wet pond supplement foini has a few items marked N/A that must be
revised. •-
a. The emergency drain is a re*rement" that musf be' provided. Due to the flat
topography around here, portable'pumps will suffice as the emergency drain. Please
have that1lank initialled, and write"in.'that a pump will be provided as needed.
b. It is desired that the permanent pool be between 3 and 6 feet. Deeper ponds are
discouraged. The pond you have designed-will meet this:requirement, so please have
that blank initialled. -
3. The Operation and Maintenance Plan item`(C),(3) needs to be revised to say that inspection
of the components will be performed monthly or.after every runoff-producing rainfall event.
4. The forebay volume is based on 20% of the total volume in the pond from the bottom to the
. ,
permanent pool. This is a different inter r,pretation than has been done in the past.
127 Cardinal Dr.Ext.,Wilmington,North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer .500/0 recycled/10% post-consumer paper

Mr. Klein
November 6, 1998
Stormwater Project No. SW8 980819
---------------------------------------------
5. Please revise the pond section detail to inchide the forebay. Show depth, slopes, etc.
Please note that this request for additional information is in response to"a preliminary review. The
requested information should be received by this Office'prior to December_6, 1998, or,the application will
be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including
the application fee. The Division is allowed 90 days from-the receipt of a completed application to issue the
permit.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely;-
Ms. Linda Lewis
Environmental Engineer
RSS/arl: S:\WQS\STORMWAT\ADDINFO\986810'-
Af
cc: �linda Lewis
Arthur Ricks
Central Files

Permit No.
(to be proi,ided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWO Stormwater Management Plan Review•
A complete stormwater management plan submittal includes a wet detention basin supplement for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a fully executed
operation and maintenance agreement.
1. PROJECT INFORMATION (please complete the following information):
Project Name : Cm-rL.E N A`CN F F3Aptt5T CK,Rc H
Contact Person: Aft-VAvR R\CkS Phone Number (a,\U ) z%- mu
For projects with multiple basins, specify which basin this worksheet applies to: W jA
Basin Bottom Elevation 15.90 ft. (average elevation of the floor of the basin)
Permanent Pool Elevation 22.00 ft. (elevation of the orifice)
Temporary Pool Elevation 23.50 ft. (elevation of the discharge structure overflow)
Permanent Pool Surface Area I A\0 sq. ft. (water surface area at the orifice elevation)
Drainage Area ac. (on-site and off-site drainage to the basin)
Impervious Area 3.\S ac. (on-site and off-site drainage to the basin)
P=manem Pool Volume 11 230 cu. it. (combi,' vojume of main b'-sin and foreb2v)
Temporary Pool Volume \3. SU, cu. ft. (volume detained above the permanent pool)
Forebay Volume 2.'13\ cu. ft.
SA/DAI used _..__..._..----..._. 38
(surface area to drainage area ratio_
Diameter of Orifice 1.l S in.
Design TSS Removal 90 % (85% TSS removal required, see item k below)
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices manual
(N.C. Department of Environment, Health and Natural Resources, November 1995) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Form SWU-102 January 2998 Paee 1 of 2

App ' is Initials
t a. The temporary pool controls runoff from the 1 inch storm event.
b. The basin length to width ratio is greater than 3:1.
v c. The basin side slopes above the permanent pool are no steeper than 3:1.
z d. A submerged and vegetated perimeter shelf at less than 6:1 is provided (show detail).
x e. Vegetation above the permanent pool elevation is specified.
N /A f. An emergency drain is provided to empty the basin.
g. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
ti h. The temporary pool draws down in 2 to 5 days.
i. A trash rack is provided for both the overflow and orifice.
j. The forebay volume is approximately equal to 20% of the total basin volume.
k. Sediment storage is provided.in the permanent pool
N(A 1. A 30-foot vegetative filter is provided at the outlet2 (include erosive flow calculations)
in. Recorded drainage easement for each basin including access to nearest right-of-way.
n. 'A site specific operation and maintenance(O&M) plan is provided.
o. A vegetation management/mowing schedule is provided in the O&M plan.
p. Semi-annual inspections are specified in the O&M plan.
y q. A debris check to be performed after every storm event is specified in the O&M plan.
r. Specific clean-out benchmarks are specified in the O&M plan (elevation or depth).
s. A legally responsible party is designated in the O&M plan3 (include name and title).
t. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified to be performed prior to use as a wet detention basin.
Foomotes:
1 When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
-----actual impervious%and permanent pool depth. Linear-interpolation-sbould be-employed to determine the correct value for non-
standard table entries.
2 The requirement for a vegetative filter may be waived if the wet detention basin is designed to meet 90%TSS removal
3 The legally responsible party should not be a homeowners association unless more than 50%of the lots have been sold and a
resident of the subdivision has beenr..med the president_
Form SWU-102 Januan, 1998 Paae 2 of 2

HMATER
E C E i V E �
u AUG 12 1998 IJ
CASTLE HAYNE BAPTIST CHURCH PROD #—�
STORM WATER MANAGEMENT OPERATION AND MAINTENANCE PLAN
L GENERAL
The project area will contain improvements which will require perpetual maintenance and include
a storm water management system which relies on the treatment of surface runoff through the use
of both vegetative swales and a detention pond facility.
Permitting, construction and final ownership of the detention pond will be by the CHURCH.
2. OPERATION OF WET DETENTION POND SYSTEM
A. GENERAL: The detention pond is intended to provide some measure of sediment and nutrient
filtration within the vegetation along the pond perimeter as well as promoting infiltration of runoff
into the subsurface groundwater.
The use of a pond allows a more intensive built-upon area to be developed and is a permitted
method for stormwater treatment in compliance with the State of North Carolina Administrative
code Section 15 NCAC 2H.1000, Stormwater Runoff Disposal.
B. MAINTENANCE RESPONS1BILIT1ES: Routine maintenance as detailed below is required
for each of the detention ponds. To provide for this, the CHURCH shall be responsible for all
required maintenance. In lieu of performing the direct maintenance, the CHURCH may contract
this service to an independent maintenance entity; however,all responsibilities for enforcing these
restrictive covenants shall reside with the CHURCH.
C. DETENTION POND SYSTEM MAINTENANCE: As a minimum, the following
maintenance procedures shall be followed for each pond:
(1) General: Side slopes shalLbe kept mowed and clear of debris. Vegetation shall be kept to a
maximum height of eight (8) inches and mowing shall be scheduled accordingly.
(2) Upon Completion of Construction:
(a) Any sediment deposited in detention pond shall be removed to obtain design depth, slopes and
specifications.

Page Two
Operation and Maintenance Plan
Castle Hayne Baptist Church
(b) The wetted perimeter shall be planted with water resilient vegetation appropriate to soil and site
characteristics; the remaining pond slopes shall also be vegetated and planted with vegetation
appropriate to soil and site characteristics. All slopes shall be maintained to ensure growth of such
vegetations.
(c) All drainage features shall be inspected and cleaned of sand, silt or foreign materials. These
features include, but not limited to, the pond outlet structure trash screen, outlet orifice and site
drop inlet and catch basin grates.
(d) Any component which is determined to be not performing satisfactory in its intended usage
shall be repaired or replaced to original design specifications.
(3) After Each Runoff Producing Rain:
(a) Any sloughing,erosion or vegetative wash-out of the pond slopes shall be repaired immediately.
(b) All drainage features shall be inspected and cleaned of trash or foreign materials. These
features include the pond side slopes,pond outlet structure trash screen,outlet orifice and site drop
inlet and catch basin grates.
(c) Any component which is determined to be not performing satisfactory in its intended usage shall
be repaired or replaced to original design specifications.
(4) Semi-Annually:
(a) The detention pond shall be checked for siltation and filling. Should the bottom elevation
exceed the design bottom elevation, the pond shall be excavated six (6) inches below the design
elevation to allow solids accumulation due to siltation and filling. The detention pond bottom has
been established at a depth of 6.1 feet below the normal pool elevation.
CHAIRMAN OF BUILDING COMMITTEE
Arthur Ricks
Castle Hayne Baptist Church
4535 Parmelee Road Signature)
Castle Hayne,NC 28429
Phone: [phone]
��(Date)

Nov 6 '98 8:21
0 K 9-7622173
State of North Carolina
Department of Environment and Natural Resources
Wilmington Regional Office
Wayne McDevitt, Sec
James B.flunt,Governor
—
FAX '.COVLR SHEET
Date: _ ..I `�(p�C(`� N . Ot Pages: 3
To,. � � IG{.gin . row: Lrn
CO:' CO:
FAX FAX#: -350- 4 , /
REMARKS:
IZ7 Cxrdinel Ddvo Ektemion,%VIFm'naton,b1:C:U;j0S38JSTelephane(910)395-3900 Fax[phone]
A*E tual Opportunity AMrtng6ve Action Employcr

State of North Carolina
Department of Environment and Natural Resources
Wilmington Regional Office
James B. Hunt, Governor Wayne McDevitt, Secretary
FAX COVER SHEET
Date: I —Cn-�`� No. Of Pages: 3
To: Jc n lc— 2(61 From: Lill 2 LP,c�-rS
CO: CO:
FAX #: (DZ--ZI 13 FAX#: [phone]
REMARKS:
127 Cardinal Drive Extension,Wilmington,N.C.'_9J05-38J5 Telephone[phone] Fax[phone]
An Equal opportunity Affirmative Action Employer

KLEIN ENGINEERING 322 South 4th Street
401
AND ASSOCIATES WIImington(910) 763-900
._.._.,i
kecnk�r
August 12, 1998 AUG 12 1998 File No.: 96005
Ms. Linda Lewis
NCDENR
Division Water Quality /
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Re: Castle Hayne Baptist Church, New Hanover County
Engineered System Submittal
Dear Ms. Lewis:
Please find enclosed submittal for the above referenced project. The project involves the
construction of the church facility as well as parking_ facilities to accommodate the project.
Included for your review are the following:
1. Completed application form and application fee of$385
2. Two(12) copies of the Drawings
3. Two (2) copies of the Storm Drainage Narrative package which includes Narrative, O&M
Agreement and Calculations.
Should there be any questions concerning the enclosed items or additional copies desired, please
contact our office. Under separate cover, we will be forwarding_ information to Ms. Beth Easley_
for N14C sedimentation and erosion control consideration.
Sincerely,
KLEIN ENGINEERING AND ASSOCIATES
HN K KLEIN, PE
enclosures
cc: Mr. Arthur Ricks
Mr. Randall Bray