SW8990412_HISTORICAL FILE_19991021

STORMWATER DIVISION CODING SHEET
POST-CONSTRUCTION PERMITS
PERMIT NO. SW8 yy0qld--
DEC TYPE ❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE �n t Q
YYYYMMDD

Department of Environment t�
and Natural Resources �r
Wilmington Regional Office
James B. Hunt, Jr., �overnor NCDENR
Bill Holman, Secretary NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND N/RURAL RESOURCES
Division of Water Quality
October 21, 1999
Mr. Terry Ward, Owner
8704 Interlochen Circle
Wilmington, NC 28411
Subject: Permit No. SW8 990412 r_-
Frischkom Site
High Density Stormwater Project
New Hanover County
Dear Mr. Ward:
The Wilmington Regional Office received a complete Stormwater Management Permit Application for Frischkom
Site on August 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 990412 dated October 21, 1999, for the construction of Frischkom Site.
This permit shall be effective from the date of issuance until October 21,2009,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 2 761 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,
Rick Shiver
Water Quality Regional Supervisor
RSS/arl: S:\WQS\STORMWAT\PERMIT\990412.00T
cc: Phil Tripp; P.E.
Tony Roberts, New Hanover County Inspections
Beth Easlev, New Hanover County Engineering
Linda Lewis
4Wmingto R glo lzOffice
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. S W 8 990412
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
Mr. Terry Ward, Owner
Frischkorn Site
New Hanover County
FOR THE
construction,operation and maintenance of a wet detention pond 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 October 21,2009 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
37,135 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 Stormwater Management Systems
Permit No. S W 8 990412
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name: Frischkom Site
Permit Number: S W8 990412
Location: New Hanover County
Applicant: Mr. Terry Ward, Owner
Mailing Address: 8704 Interlochen Circle
Wilmington, NC 28411
Application Date: August 26, 1999
Name of Receiving Stream/Index#: Smith Creek/(CFR 18-74-63)
Classification of Water Body: "C Sw"
If Class SA, chloride sampling results: n/a.
Pond Depth, feet: 4.5
Permanent Pool Elevation, FMSL: 30.4
Total Impervious Surfaces, ftZ: 37,135
Offsite Area entering Pond, ftZ: None, per Engineer
Required Surface Area, ftZ: 2,926
Provided Surface Area, ftZ: 4,063
Required Storage Volume, ft3: 3,012
Provided Storage Volume, ft3: 4,292
Temporary Storage Elevation, FMSL: 3.1.35
Controlling Orifice: IN) pipe
3

State Stormwater Management Systems
Permit No. SW8 990412
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. Quarterly sediment accumulation checks, and removal as needed.
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
ofD WQ. The records will indicate the date,activity,name of person performing the work and what actions
were taken.
5. Decorative spray fountains will not be allowed in the 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. 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,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 of any vegetative conveyance shown on the approved plan.
10. The Director may determine that other revisions to the project should require a modification to the permit.
4

State Stormwater Management Systems
Permit No. SW8 990412
11. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum
of ten years from the date of the completion of construction.
12. Prior to the sale of any portion of the property,an access/maintenance easement to the stormwater facilities
shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale
of any portion of the property.
13. The permittee is responsible for verifying that the proposed built-upon area does not exceed the allowable
built-upon area.
14. The runoff from all built-upon area on the-project must be directed into the permitted stormwater control
system.
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 minimum 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
l. 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 21 st day of October, 1999.
NORT CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 990412
5

State Stormwater Management Systems
Perm it No. S W 8 990412
Frischkorn Site
Stormwater Permit No. SW8 990412
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 ofmy 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 990412
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 outlet/bypass structure.
7. All slopes are grassed with permanent vegetation.
i.
8. Vegetated slopes are no steeper than 3:1.
is
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

057
' ,
GE;II°UE"017L'1''-.
' Date Received Fee Paid Permit Number
(y Zq— cfcfc4 $ ZU SW8 990412
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):
Terry Ward
2. Print Owner/Signing Official's name and title (the person who is legally responsible for the facility and
its compliance):
Terry Ward. owner
3. Mailing Address for person listed in item 2 above:
8704 Interlachen Circle
City: _ Wilmington State: NC Zip: 28411
Telephone Number: [phone]
4. Project Name (subdivision, facility, or establishment name—should be consistent with project name on
plans, specifications, letters, operation and maintenance agreements, etc.):
Frischkom
5. Location of Facility(street address):
Old Wrightsboro Road SR1319
City: Wilmington County: New Hanover
6. Directions to facility (from nearest major intersection):
approx. 375 If south from the intersection of SR1319 and SR1322
7. Latitude :. N34 17' 00" Longitude: W77 54' 15" of facility
8. Contact person who can answer questions about the facility:
Name: Phillip Tripp Telephone Number: [phone]
II. PERMIT INFORMATION:
1. Specify whether project is (check one): X 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 and its issue date (if known)
Form SWU-101 April 1998 Page 1 of

SW8 990412
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 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.
Stormwater detention pond
2. Stormwater runoff from this project drains to the Cape Fear River basin.
3. Total Project Area: 1.25 acres 4. Project Built Upon Area: 65.6 %.
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.
MARa j
Receiving Stream Name Unnamed trib.to Smith Creek
Receiving Stream Class CSw
Drainage Basin Area 54,450 sf
Existing Impervious * Area 0
Proposed Impervious * Area 37,135 sf
%Impervious* Area(total) 65.6%
it cues••*'Sufi Area Drainage Basin 1:'
On-site Buildings 10.500 sf
On-site Streets 0
On-site Parking 26,335 sf
On-site Sidewalks 300 sf
Other on-site 0
Off-site 0
Total: E=37,135 sf E=
*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? N/A
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 April 1998 Page 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 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. 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 fine): Tripp Engineering, P.C.
Mailing Address: 419 Chestnut Street
City: Wilmington State: NC Zip: 28401
Phone: [phone] Fax: [phone]
V11. 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.
l. Please indicate that you have provided the following required information by signing your initials in the
space provided next to each item.
Appli arit's 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)
• Permit application processing fee(see Attachment A)
• 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
- 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,nmoff calculations
- Drainage basins delineated
- Vegetated buffers(where required)
VI. APPLICANT'S CERTIFICATION
I, (print or type name of person listed in General Information, item 2) Terry Ward
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 project complies with the r uirements of 15A NCAC 2H .1000.
Signature: '( Date: J`
Title: owne
Form SWU-101 April 1998 Page 3 of 4

ATTACHMENT A
1. Deed Restriction Language
The following statement 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 S4 square feet of any lot, including that portion of the right-of-way 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 ofswimming 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 ofNCAC 2H.1008(g).
2. Supplement Forms
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
Director's Certification $350 n/a
General Permit $ 50 n/a
Form SWU-101 April 1998 Page 4 of 4

DETENTION POND ANALYSIS FILE NAME: S:\WQS\POND\990412.WK1
PROJECT #: SW8 990412 REVIEWER: arl
PROJECT NAME: Frischkorn DATE: 21-Oct-99
Receiving Stream: Smith Creek Class: C S_w_ Chlorides: n/a
Drainage Basin: Cape Fear Index No. 18-74-63
Site Area 54450.00 square feet
Drainage Area 54450.00 square feet needs to be verified
Area in Acres 1.25 acres
IMPERVIOUS AREA
Building 10500.00 square feet
Parking 26335.00 square feet
Sidewalks 300.00 square feet
square feet
square feet
square feet
TOTAL 371fMM
% IMPERVIOUS 68.20% Pond Depth: 4.5 TSS: 90
SURFACE AREA CALCULATION
SA/DA 5.37%
Req. SA 2926'square feet
Prov. SA 4063 Isquare feet [From plan Contours]
VOLUME CALCULATION Perm. Pool Volume= 9268.00
Req. Forebay Volume= 1853.6
Bottom 25.90 MSL Provided Volume= 2210.00
Perm, Pool 30.40 MSL Percent= 23.3%
Design Pool 31.35 MSL
Design SA 4973 square feet [From plan Contours]
Req. Volume 3012 cubic feet [Elevation=
v= 0.66
Prov. Volume 4292 cubic feet A @
ORIFICE CALCULATION
Avg. Head = 0.45 ft
Flow Q2, cfs 0.025 Area, in 1.10
Flow Q5, cfs 0.010 Area, in 0.44
No. of Orifices --Diameter, in. 1.00! Area = 0.785 in
Q, cfs = 0.018 Drawdown 2.0 days
COMMENTS
Surface Area, Volume and Orifice are within Design Guidelines.

TRIPP ENGINEERING, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] FAX: [phone]
August 26, 1999
NCDENR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive YRZ C3�- VED
Wilmington, NC 28405-3845
AUG 2 g 1999
Attn: Ms. Linda Lewis
BY: _
Re: Frischkorn
SW8 990412
New Hanover County, NC
T98057
Dear Linda:
In response to your correspondence dated August 11, 1999 we offer the following:
1. We have provided completed pages 2 and 3 of the wet detention basin supplement with
original initials and signatures.
2. We have revised the forebay and entrance to the pond. In addition, we have deepened the
forebay and provided volume equal to approximately 20% of the total pond volume.
3. The stormwater application now has the same total of impervious area in the upper and
lower breakdown portion. The calculations have been revised to reflect the correct building
area and total area.
4. We have referenced the project number on all correspondence.
Please contact us with questions or comments, or if you require additional information.
Thank you.
Sincerely,
Tripp Engineering, P.C.
f cvi�
Monica V. Loughlin
MVL:dcb
Enc.

tV2&99 FRISCHKORN 98057
CDC Stormweter Calculations
Total DrainF Area
R. I acres
54450 1 1.25
ImpermAous Area
Land Use sq.ft. .acres
buildings 1015M 0.24 %impetuous= 0.682
parldngVas hat 26.335 0.60 = 68.2%
concrete 300 0.01 say 69.0%
Total 37,135 0.55
Stormwater Calculations:
Time of Concentration: CPRs- 0.25
Hydraulic Length(L)- 580 it. CPOsr= (%imp.)(.95)+(1-%Imp.)(.25)
change in Height(H)= 1.5 ft. = 0.73
TO = (1.2/H)2 /128 Ito= 8.30 irdhr
10.39 min. 12e= 7.13 inRu
Flow for 10 year,6 hour Storm(Oto): Flow for 25 year,6 hour Storm(O2s):
[-QP e_ (CPRE)x(Its)x(Area) OME= (CPRO x(125)x(Area)
= 1.97 cfs = 2.23 cfs
DPosr= (CPOSt)x(Ita)x(Area) OPOS'r= (CP )x(125),x(Area)
5.75 cfs 6.51 cis
Soil Storage Capacity for 10 year Stomn: Soil Storage Capacity for 25 year Storm:
CN= (96)(%imp.)+(60)(1-%imp.) CN- (98)(%imp.)+(60)(1-%Imp.)
= 66 = 86
P- 4.82 in. forlOyr,6 hr storm P- 5.71 in. for 25 yr,6 hr storm
S= 1000/CN-10 S- 1000/CN-10
= 1.63 = 1.63
Depth(D)- [P-(0.2)(S))2/[P+(0.8)(S)I Depth(D)= [P-(0.2)(S)12/IP+(0.8)(S))
3.30 in. 4.13 in.
Time to Peak Flow: Time to Peak Flow
TP= )(D)(Area))I O2.Post 1 TP? [(43.5)l0)lArea))[(43.5 /Ota.Posr
31.21 min. 34.55 min.
Detention Pond Design:
State Surface Area Requirement at normalpool:
Pond Sae: Pond side slopes- 3 :1
Elevation Surface Area Depth below N.P.= 4.5 ft.
rt. (sq.R. SAIDA= 0.0543
Normal Pool 30.40 4,063 (Chart for 90%TSS Removal for Wet Detention
Flood Pool 31.35 4,973 Pond without Vogel Filter
Topof Bank 32.50 6,169 Required SA= (SA/DA)x(Taal Drainage Area)
Bottom of Pool 25.90 58 - 2,957 s .ft.
Provided Storage Volume: State Volume Required for Storage of first 1'of runoff:
Vol._ [Normal pool SA+Flood Pool SA)/2) Vol._ 1(1/12)x(DA)x(%imp.)]+
x(F.P.elev.-N.P.slay.) 1(1/12)x(DA)x(1-%imp.)x C)
4,292 cu.R. C= 0.2
3,30 cu.ft.
Y®RMWATER \\III11))
`\\������Q(E1 CAR Ol
y ,
a • 'ASS%' 9 ''�
D E C E I V E ; oF , s.
:Z SEAL S .,
AUG 2 61999 D = -ok 17374 a
ill/ .riINE ''�
''.,pOREGON \``��
PROJ # C� Z fB' Iyy11111\1\\��\
98057POND.)ds 1 of 2 l r
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3
8/26/99 FRISCHKORN 98057
CDC Stormwater Calculations
Pond Volume:
Bottom SA= 56 sq.ft.
Normal Pool SA= 4,063 sq.ft.
Vol._ [(N.P.SA+Botom SA)12]x(N.P.al.-Bottom al.)
9,268 cu.ft.
Forebov:
Required Volume Provided Volume
Vol.c 20%of storage volume Bottom SA- 1 sq.ft.
1,854 cu.ft. Normal Pool SA= 1,104 sq.ft.
Vol._ [(N.P.SA+Bottom SA)/2)x(N.P.al.-Bottom al.)
2.486 cu.A.
depth- 4.5 ft.
Outlet Structure Desiom
Flow for 2-day drawdown: Flow for 5-day drewdovm:
for 1 st 1'of stomrwater, for 1 st 1'of stormwater,
0= Provided Vol./172,800 sec.(2-days) Q= Provided Vol.1432,000 sec.(5days)
= 0.025 cis 0.010 cis
Required Area of Pipe for 2-day drawdown: Required Area of Pipe for 5-day drawdewn:
A- Q/[Cd x SQRT(2 x g x h)] A- Q/[Cd x SQRT(2 x g x h)]
Cd= 0.6 Cd= 0.6
g= 32.2 Use 9. 32.2 ft./s1
h- (F.P.elev:N.P.elev.)/2 h- (F.P.elev.-N.P.elev.)/2
0.475 ft. = 0.475 ft.
A= 0.0075 sq.ft. A= 0.0030 sq.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]
0.0976 ft. = 0.0617 ft.
1.17 in. 0.74 in.
'Use: 1.00 in diameter pipe
Outlet Structure Check:
Using a W x 4'Basin,
Perimeter(L)= 16 A.
0= CIA
C= (%Imp.)(.95)+(1-%imp.)(.25)
= 0.73
1= 7.13 in+for a 25 yr.Storm
A= 1.25 Acres
6.51 cis
0= Cwx Lx H''s
H= [0/(CwxQj]
Cw- 3
0.26 ft.
Peak elevation= flood pool elevation+H
31.61 A.
98057PONDAs 2 of 2

State of North Carolina
Department of Environment ��� 0 '
and Natural Resources _ �
Wilmington Regional Office oftam
James B. Hunt, Jr., Governor NCDENR
Wayne McDevitt, Secretary NO CAROUNA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Division of Water Quality
August 11, 1999
Mr. Terry Ward
8704 Interlochen Circle
Wilmington, NC 28411
Subject: REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 990412
Frischkom
New Hanover County
Dear Mr. Ward:
The Wilmington Regional Office received previously requested information for the Stormwater
Management Permit Application for Frischkom on June 29, 1999. 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. The second and third pages of the wet pond supplement still have not been provided. A new
page 1 was the only sheet sent in with the June 29, 1999 submittal. Please provide completed
pages 2 and 3 of the supplement with original initials and signature.
2. The pond's configuration is still a concern. Correct design of this pond in relation to inlet and
outlet is critical to how it will function, and how much of a problem maintenance will become.
Incorrect design can lead to the pond becoming an eyesore rather than an amenity.Please either
reverse the pond layout and make the inlet at the narrow end and the outlet at the wider, deeper
end;or construct the forebay as deep as the pond,keeping the volume provided as close to 20%
as possible.Additional piping may be needed if you choose the former option.Please be aware
that if the pond configuration is not reversed, we must increase the maintenance interval for
checking the sediment level to quarterly.
3. The application and calculations still show different proposed impervious numbers. The
application has two different totals- 37,135 in the lower breakdown portion, and 35,736 in the
upper portion. It appears that the 37,135 was not carried up. The calculations, however, use
36,835. The calculations list the building as 10,200 but it should be 10,500(?). Please make
revisions as needed to the application,plans or calculations to make sure that the numbers match
up, and resubmit.
4. Please reference the project number above on all correspondence.
127 Cardinal Dr.Ext.,Wilmington,North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper

Mr. Ward
August 11, 1999
Stormwater Project No. SW8 990412
-7--------------------------------------------
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 September 11, 1999, 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.
The construction of any impervious surfaces associated With this project prior to receipt of the
stormwater permit is considered a violation of NCGS 143-215.1, and is subject to enforcement action.
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\990412.AUG
cc: Linda Lewis
Phil Tripp, P.E.
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\990412.WK1
PROJECT #: SW8 990412 REVIEWER: arl
PROJECT NAME: Frischkorn DATE: 11-Aug-99
Receiving Stream: Smith Creek Class: CS-W. Chlorides: n/a
Drainage Basin: Cape Fear Index No. 18-74-63
Site Area 54450.00 square feet
Drainage Area 54450.00 square feet needs to be verified
Area in Acres 1.25 acres
IMPERVIOUS AREA
Building 10500.00 square feet
Parking 26335.00 square feet
Sidewalks 300.00 square feet
square feet
square feet
square feet
TOTAL 37135.00'
% IMPERVIOUS 68.20% Pond Depth: 4.5 TSS: 90
SURFACE AREA CALCULATION
SA/DA 5.37%
Req. SA 2926 square feet
Prov. SA 4063', square feet [From plan Contours]
VOLUME CALCULATION Perm. Pool Volume= 11014.00
Req. Forebay Volume= 2202.8
Bottom 25.90 MSL Provided Volume= 2753.00
Perm. Pool 30.40i MSL Percent= 25.0%
Design Pool 31.35 MSL
Design SA 4973 square feet [From plan Contours]
Req. Volume Ocubic feet S @ 0.�
Prov. Volume 4292 cubic feet SA A
Elevation=
ORIFICE CALCULATION
Avg. Head = 0.45 ft
Flow Q2, cfs 0.025 Area, in 1.10
Flow Q5, cfs 0.010 Area, in 0.44
No. of Orifices IDiameter, in 1.Oq> Area = 0.785 in2
Q, cfs = 0.018 Drawdown 2.0;days
COMMENTS
Surface Area, Volume and Orifice are within Design Guidelines.

TRII'P ENGINEERING, P.C.
0 419 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] FAX: [phone]
June 28, 1999
NCDENR
Division of Environmental Management STORM
p
Water Quality Section WATER
127 Cardinal Drive
Wilmington, NC 28405-3845
uI� ECEIVED
Attn: Ms. Linda Lewis
JUN 2 91999
Re: Frischkorn
SW8 990412 PROJ H D
New Hanover County, NC
T98057
Dear Linda:
In response to your correspondence dated June 15, 1999 we offer the following:
1. We have provided a new original wet pond supplement form. Our files only had copies.
2. New calculations, applications and supplements have been completed and enclosed.
3. We request the additional surface area allow for this difference between design and desired
design.
4. A revised detail of the outlet structure has been provided.
5. The forebay wall has been shifted back as well as forebay depth changed to 2.5' to bring the
proposed forebay volume closer to 20% of the permanent volume.
6. Numerous variations of parking were originally proposed. Our latest plan with approval
from County Zoning has been included. Impervious areas were taken from the computer.
Our numbers for asphalt pavement equals 26,335 square feet.
Please contact us with questions or comments, or if you require additional information.
Thank you.
Sincerely,
Tripp Engineering, P.C.
�� A
Charles D. Cazier, E.I.
CDC:dcb
Enc.

.State of North Carolina
Department of Environment
and Natural Resources • ;//
Wilmington Regional Office
James B. Hunt, Jr., Governor D��
Rayne McDevitt, Secretary NORTH CAROLINA DEPARTMENT OF
Division of Water Quality ENVIRONMENT AND NATURAL RE50UROE5
June 15, 1999
Mr. Terry Ward
8704 Interlachen Circle
Wilmington, NC 28411
Subject: ACKNOWLEDGEMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 990412
Frischkorn
New Hanover County
I
Dear Mr. Ward:
The Wilmington Regional Office received a Stormwater Management Permit Application for
Frischkom on April 15, 1999. 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. The original signed wet pond supplement has not been received, as indicated in the fax
received May 11, 1999. Please submit.
I.
2. The calculations are based on 34,436 square feet of impervious area, but 35,736 square feet
is being proposed. Please refer to comment #6 and revise as needed.
3. The pond design is backwards from the desired configuration. The inlet is supposed to be
narrow, widening and deepening to the outlet. The excess surface area and volume provided
is mitigating somewhat for this, however, please see comment #5.
t/ 4. The pond outlet detail indicates the flood pool elevation as 31.25. Please revise to 31.35, to
match up with the rest of the plans, calculations, and supplement.
5. The calculations indicate that the forebay volume provided is equivalent 25% of the
permanent pool volume. The forebay volume needs to be reduced to be closer to 20%. Excess
forebay volume translates to less surface area available at the design depth.The pond does
provide excess surface area and volume, which is good, however in this case, due to the less+
than ideal pond configuration, I believe that requesting that more of the pond's surface area
be provided at the design depth is justified.
6. Based on my calculation, the pavement and gravel area comprises 26,573 square feet,
(excluding the sidewalk) but only 24,936 is accounted for on the application. Please check and
revise the calculations and supplement as needed.
127 Cardinal Dr. Ext.,Wilmington,North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper

Mr. Ward -
June 15, 1999 /
Stormwater Project No. SW8 990412
----------------------------------------------
Please note that this request for additional information is in response to a preliminary review—The
requested information should be received by this Office prior to July 15, 1999, 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.
The construction of any impervious surfaces associated with this project prior to receipt of the
stormwater permit is considered a violation of NCGS 143-215.1, and is subject to enforcement action.
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\990412.3-UN
cc: Linda Lewis
Charles Cazier, Tripp Engineering
127 Cardinal Dr.Ext.,Wilmington,North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper

o&/11/1999 10:21 9107635631 TRIPP ENGINEERING PAGE 01
AR
JA� P0
rk TRIPP ENGINEERING, P.C. 1
419 Chestnut Street Wilmington, North Caroline 23401
910/763-5100 Fax [phone]
LETTER OF TRANSMITTAL
Job No..
To: I�Cr>c�112- Date: 5'�')/ 1 '�'✓�, - 1
Attention: Subject:
!r FAX TRANSMITTAL: NUMBER OF PAGES INCLUDES COVER 4
I am sending you: ( ) ATTACHED ( ) UNDER SEPERATE COVER
( ) Prints ( ) Tracings ( ) Copy of letter ( ) Specifications ( ) Other
Copies Item No. Description
These are transmitted as checked below:
( ) For Approval (--Y�or Your Use ( ) Sign & Return ( ) Review
Remarks: I Anil r" )A16 T4hr_ A/OI,I P17T l�_fF#YlCd 114Arw
cc:
Signed: 4�klee _5 4z�

^/11/1999 10:21 9107635631 TRIPP ENGINEERING PAGE 02
a �a Lau a�V.�� J/liRl G_
i (to be provided by DWQ)
State of North Carolina TE 7905-
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This farm 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 signed and
notarized operation and maintenance agreement.
I. PROJECT INFORMATION (please complete the following information):
Project Name: Frischkorn
Contact Person: Phillip Tripp Phone Number: 910 763-5100
For projects with multiple basins. specify which basin this worksheet applies to:
Basin Bottom Elevation 25.9 ft. (average elevation of the floor of the basin)
Permanent Pool Elevation 30.4- ft. (elevation of the orifice)
Temporary Pool Elevation 31.35 ft. (elevation of the discharge structure overflow)
Permanent Pool Surface Area 4,0(03 sq.ft. (water surface area at the orifice elevation)
Drainage Area ¢50 sq.ft. (on-site and off-site drainage to the basin)
Impervious Area 0 --19 ac. (on-site and off-site drainage to the basin)
Permanent Pool Volume 11,o14- cu.fT (combined volume of main basin and forebay)
.Temporary Pool Volume d-1 2192 cu.ft. (volume detained above the permanent pool)
Forebay Volume 2,153 cu.ft.
SA/DAI used 5-01a (surface area to drainage area ratio)
Diameter of Orifice 1. 00 in.
Design TSS Removal `l0 % (85% TSS removal required, see item k below)
U. 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 NC AC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. . If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Applicants Initials
Form SWV-10" Rev I/August 1998 Page 1 of 3

;b5/11/1999 10: 21 9107635631 TRIPP ENGINEERING PAGE 03
c,Dr a. The temporary pool controls runoff from the 1 inch storm event.
r r-a' b. The basin length to width ratio is greater than 3:1.
rt� c. The basin side slopes above the permanent pool are no steeper than 3:1,
—t Di d. A submerged and vegetated perimeter shelf at less than 6:1 is provided (show detail).
rrx. e. Vegetation above the permanent pool elevation is specified,
COL f. An emergency drain is provided to empty the basin.
—S g. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
4or, h. The temporary pool draws down in 2 to d days.
i. A trash rack is provided for both the overflow and orifice.
CQ j. The forebay volume is approximately equal to 20% of the total basin volume.
rQ_ k. Sediment storage is provided in the permanent pool.
CDc_ 1. A 30-foot vegetative filter is provided at the outlet2 (include erosive flow calculations).
r'Oel_ m. Recorded drainage easement for each basin including access to nearest right-of-way.
C-on a. A site specific operation and maintenance (0 & M) plan is provided.
CCC o. A vegetation management/mowing schedule is provided in the O & M plan.
CGY, p. Semi-annual inspections are specified in the O & M plan.
CL.r, q. A debris check to be performed after every storm event is specified in the O & M plan.
ClX_ r. Specific clean-out benchmarks are specified in the O & M plan (elevation or depth).
rtZ s. A legally responsible party is designated in the O & M plan3 (include name and title).
C OC. 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.
o t otes-
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 should 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 parry should not be a homeowners association unless more than 50%of the lots have been sold and a
resident of the subdivision has been named the president.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention system is defined as the wet detention basin, forebay, non-integrated pretreatment
Systems (pretreatment other than forebays), and the vegetated filter if one is provided.
This system (check one) 0 does &'does not incorporate a vegetated filter.
This system (check one) 0 does C�does not incorporate non-integrated pretreatment.
Maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
Form SWU-102 Rev 1/August 1998 Page 2 of 3

,,05/11/1999 10:21 9107635631 TRIPP ENGINEERING PAGE 04
a. 01 _ ass
t TERRY W. WARD Oawlwsm Mc1078
PK 910-GW1225 low
b t UNINTERlACHEN CM. DGGUIS Wlthln
WIWIINGMN,NC 2"11 D,* IF
Pay" N�O Ei✓.e $ y�o- �-
2. Re � ro rno�.w
P / ,4,�/ v vegetative
Cov, NaiionsBank
3 Insp Na oms..,x,x_a :ly to maintain
pror
Memo A� G...-rw r
4. Rea pth is
redu )ropriate
manner and shall not be handled in a manner treat win auversmy ullpact Waic, yuauty t,.C. „Uckpiling near a
wet detention basin or stream, etc.)
The original design depth is: 4.5(25.9)
The sediment removal benchmark depth is: 3.3-75' (CL. 21.029)
5. Remove cattails and other indigenous wetland plants when they cover 75% of the basin surface. These
plants shall be encouraged top grow along the basin perimeter.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
the emergency drain shall be minimized to the maximum extent possible.
7. All components of the wet detention basin system shall be maintained in good working order.
1 acknowledge and agree by my signature below that I am responsible for the performance of the above
maintenance procedures. I agree to notify DWQ of any problems with the system or changes in the name of the
project. responsible party, or address.
Print name: Terry Ward
Address: 8704 Interlachen Circle, Wilmington. NC 28411
Phone: [phone]
Title: owner
Signature:
Date:
Notary I, Monica V. Loughlin
a Public for the State of North Carolina
County of New Hanover do hereby certify that merry Ward
personally appeared before me this 5 1, day of March , 1999 and acknowledge the
due execution of the forgoing infiltration system maintenance rc nts. Witness my hand and official seal.
O�v�Gp V. LO&NO
4Q&� ;_.:.......Gyl�go
C1 Afi41.ta0TAgy "•?s
VIv commission expires 08/07 O1 =Z i
yvy •.., �
Form SVIU-102 Rev 1/August 1998 Page 3 of 3

TRII'P ENGINEERING, P.C.
419 Chestnut Street
Wilmington, North Carolina 28401
Phone: [phone] FAX: [phone]
RECEIVED
April 14, 1999 /
APR 15 1999
NCDENR
Division of Environmental Management
Water Quality Section
127 Cardinal Drive
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
Re: Frischkorn
New Hanover County, NC
TE 98057
Dear Linda:
Enclosed please find two(2) sets of plans, one (1) signed original and one(1)
copy of the application form, one(1)wet detention basin supplement form 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.
Charles D. Cazier, E.L
CDC:mvl
Enc.