SW8990306_Historical File_19990708

. State.. of North Carolina
•' : Department of Environment
and Natural Resources A . .
Wilmington Regional Office r
James B. Hunt, Jr., Governor lnt,1 C D E R
Wayne McDevitt, Secretary NORTH CAROLINA DEPARTMENT OF
Division of Water Quality ENVIRONMENT AND NATURAL RESOURCES
• July 8, 1999
Mr. Raiford G. Trask, Jr., Owner
1202 Eastwood Road
Wilmington,NC 28403
Subject: Permit No. SW8 990306
Westfall Office Park
High Density Stormwater Project
New Hanover County
Dear Mr. Trask:
The Wilmington Regional Office received a complete Stormwater Management Permit Application for Westfall
Office Park on May 21, 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 990306 dated July 8, 1999, for the construction of Westfall Office Park.
This permit shall be effective from the date of issuance until July 8,2009, 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 150E 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(910) 395-3900.
Sincerely,
aama_e
Rick Shiver
Water Quality Regional Supervisor
RSS/arl: S:1WQSISTORMWATIPERMIT1990306.JUL
cc: John Tunstall, P.E.
Tony Roberts,New Hanover County Inspections
Beth Easley, New Hanover County Engineering
Linda Lewis
Wilmington Regional Office
Central Files
127 Cardinal Dr. Ext.,Wilmington,North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper

State Stormwater Management Systems
• Permit No. SW8 990306
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. Raiford G. Trask, Jr., Owner
Westfall Office Park
New Hanover County
FOR'THE
construction,operation and maintenance of 4 wet detention ponds in compliance with the provisions of 15A NCAC
2H .1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and
specifications and other supporting data as attached and on file with and approved by the Division of Water Quality
and considered a part of this permit.
This permit shall be effective from the date of issuance until July 8, 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 controls have been designed to handle the runoff
from a specific amount of built-upon area as follows: Pond 1 @205,644 ft2, Pond 2 @589,464 ft2, Pond 3
@285,841 ft2 and Pond 4 @1,001,474 ft2.
3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts
of the permit.
4. The built-upon area for each drainage basin and for the total tract will be limited as indicated on page 3 of
this permit, and per the approved plans.
5. The impervious area for each pond is based on a maximum of 85% of the lot area within the drainage area
of each pond will be impervious.
2

State Stormwater Management Systems
Permit No. SW8 990306
DIVISION OF WATER QUALITY
PROJECT DESIGN DATA SHEET
Project Name: Westfall Office Park
Permit Number: SW8 990306
Location: New Hanover County
Applicant: Mr. Raiford G. Trask, Jr., Owner
Mailing Address: 1202 Eastwood Road
Wilmington,NC 28403
Application Date: May 21, 1999
Water Body Receiving Stormwater Runoff: UT Howe Creek (CFR 18-87-23)
Classification of Water Body: "SAORW"
If Class SA, chloride sampling results: 31 ppm
POND 1 POND 2 POND 3 POND 4
Pond Depth, feet: 7.5 7.5 7.5 7.5
Permanent Pool Elevation, FMSL: 13.5 14.3 15 14
Total Impervious Surfaces, ftz: *205,644 *589,464 *285,841 *1,001,474
Offsite Area entering Pond, ftz: None, per Engineer
Required Surface Area, ftz: 7,015 20,477 9,786 34,413
Provided Surface Area, ftz: 8,337 22,052 12,511 36,956
Required Storage Volume, ft3: 16,558 47,333 23,003 80,548
Provided Storage Volume, ft3: 19,631 54,250 28,806 93,011
Temporary Storage Elevation, FMSL: 15.5 16.5 17 16.2
Controlling Orifice,pipe diamater: 2"(1) 3"4 2"4) 4"431
*Impervious area is based on 85% of the lot area plus roads.
3

State Stormwater Management Systems
Permit No. SW8 990306
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.
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. The permittee is responsible for verifying that the proposed built-upon area does not exceed the allowable
built-upon area.
10. The runoff from all built-upon area on the project must be directed into the appropriate permitted stormwater
control system.
11. 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 No. SW8 990306
12. Prior to the sale of any portion of the property, the following statements and restrictions must be recorded
with the Register of Deeds:
a. 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.
b. The built-upon area is limited to a maximum of 85% of the lot area. Built-upon area includes, but
is not limited to, structures, asphalt,concrete, gravel,brick, slate and coquina, but does not include
raised, open wood decking, or the water surface of swimming pools. The allotted amount of built-
upon area must cover that portion of the right-of-way between the front lot line and the edge of
pavement.
c. All runoff from the built-upon area on the lot must be directed into the forebay of the appropriate
detention pond, as indicated on the approved plans.
13. A copy of the recorded deed restrictions must be submitted within 30 days of recording.
14. 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.
15. The Director may determine that other revisions to the project should require a modification to the permit.
16. 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
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.
5

State Stormwater Management Systems
Permit No. SW8 990306
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 perr_ittee 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 8th day of July, 1999.
NORT CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
K rr. T. Stevens,Direc o
Division of Water Quality
By Authority of the Environmental Management Commission
Permit Number SW8 990306
6

State Stormwater Management Systems
Permit No. SW8 990306
Westfall Office Park
Stormwater Permit No. SW8 990306
New Hanover County
Designer's Certification
I, ,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:
SEAL
Signature
Registration Number
Date
Page 1 of 2
7

State Stormwater Management Systems
Permit No. SW8 990306
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.
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
Page 2 of 2
8

A&K#98244
_11 .iO :t
PEL Received Fee Paid t N ber
SZE) 9
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
L GENERAL NERAL INFORMATION
1. Applicants name(specify the name of the corporation,individual,etc.who owns the project):
Raiford G. Trask, Jr.
2. Print Owner/Signing Official's name and title(the person who is legally responsible for the facility and its compliance):
Raiford G. Trask, Jr., Owner
3. Mailing Address for person listed in item 2 above:
1202 Eastwood Road
City: Wilmington State: NC Zip: 28403
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.):
Westfall Office Park
5. Location of Facility(street address):
Military Cutoff Road
City: Wilmington County: New Hanover
6. Directions to facility(from nearest major intersection):
Appox. 1.5 miles south of intersection of Eastwood Rd. and Hwy 17.
7. Latitude: 34° 14' Longitude: 77°49' of facility
8. Contact person who can answer questions about the facility:
Name: John S. Tunstall, P. E. Telephone Number: ( 910 ) 343-9653
IL 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 n/a and its issue date(if known)
Form SWU-101 -January 1998 Page 1 of 5

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 X Sedimentation/Erosion Control 404 Permit
IIL 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.
2. Stormwater runoff from this project drains to the Cape Fear River basin.
3. Total Project Area: 62.04 acres 4.Project Built Upon Area: 47.80 ac =77% %
5. How many drainage basins does the project have? 4
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 fbr each basin provided in the same format as below.
Pond 1 Pond 2
2
Receiving Stream Name I 'owe ree I 'owe ree
Receiving Stream Class Freshwater-ORW" Freshwater-ORW"
Drainage Basin Area 6.25 ac 17.21 ac
Existing Impervious*Area ----- -----
Proposed Impervious*Area 4.72 ac 13.53 ac
%Impervious*Area(total) 75.52 % 78.62 %
On-site Buildings
On-site Streets
On-site Parking 4.05 ac 12.81 ac
On-site Sidewalks
Other on-site road 0.67 0.72 ac
Off-site -----
Total: E=4.72 ac E=13.53 ac
*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: All drainage areas were computer
generated.
IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
Deed restrictions and protective covenants and 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.
**Please see chloride test data and previous correspondence with NCDENR which is included with this permit.
Form SWU-101 January 19984 Page 2 of 5

3. Specify the type of project(check one):
Low Density X High Density Redevelop General Permit Other
4. Additional Project Requirements(check applicable blanks):
LAMA 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.
2. Stormwater runoff from this project drains to the Cape Fear River basin.
3. Total Project Area: acres 4.Project Built Upon Area: 1 %
5. How many drainage basins does the project have? 4
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.
Pond 3 Pond 4
Bob laRrnatiOn r;':' ay TA: ENO 1 1 r 1-?
Receiving Stream Name UT Howe reeky r irr Howe reek
Receiving Stream Class Freshwater ORW** Freshwater ORW"
Drainage Basin Area 8.62 ac 29.96
Existing Impervious*Area ---- -----
Proposed Impervious*Area 6.56 ac 22.99
%Impervious*Area(total) 76.1% 76.74%
i YT: k n+".dam Area
- i 1 - ..... 2
On site Buildings Developable areal 85% impervious
On-site Streets
On-site Parking 6.56 ac 22.99 25:96 ac
On-site Sidewalks
Other on-site road 0.91 ac
Off-site
Total: E=6.56ac E=22.99 ac
*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: All drainage areas were computer
generated.
iv. DEED RESTRICTIONS AND PROTECTIVE COVENANTS
Deed restrictions and protective covenants and 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 west be recorded.
**Please see chlorides test data and previous correspondence with NCDENR included with this permit.
Form SWU-101 January- 1S93 Page 3 of 5

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 firm): John S. Tunstall, P. E./Andrew& Kuske Consulting
Engineers, Inc.
Mailing Address: 902 Market Street
City: Wilmington State: NC Zip: 28401
Phone: ( 910 ) 343-9653 Fax: ( 910 ) 343-9604
VL 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.
App'cant'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)
•Two copies of plans and specifications including:
•Detailed narrative description of stonnwater treatment/management •
•Two copies of plans and specifications,including:
—Development/Project name
—Engineer and firm
—Legend
—North arrow
—Scale
—Revision number&date
—Mean high water line
—Dimensioned property/project boundary
—Location map with named streets or NCSR numbers
—Original contours,proposed contours,spot elevations,finished floor elevations
—Details of roads,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)
VIL APPLICANT'S CERTIFICATION
I, (print or type name ofperson listed in General Information, item 2) Raiford G. Trask, Jr.
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 requirem of 15A NCAC 2H.1000.
Signature: Date: 2'I
Title: Owner
Form SWU-101 January 1998 Page 4 of 5

Sent by:RNDREW&KUSKE Jan-27-00 03213pm from 91034396043,9107627077
Page 2, 3
State Storniwater Management Systems
Permit No SWE 990304
TO: NC DENR/Divisi0n of Environmental Management
Water Quality Section
127 Cardinal Drive Extension
Wilmington,NC 28405-3845
RE: Westfall Office Park
Permit No. SW8 990306
Dated: July 8, 1999
New Hanover County
A&K Project No. 98244
Engineer's Certification
I, John S. Tull,P. E. as a duly registered Professional
North Carolina,having been authorized to observe(periodically Engineerin the State of
)the construction
of the project,
Westffall Office Park(Ponds I &2 Only) (Project)
for Raiford G. Trask,Jr.
care and diligence were used in the observation of(Projectproject Owner)
such that the constructio state that,to the best of n was observed'due
to be built within substantial compliance and intent of the approved plans and specifications.
Required hems to be checked for this certification to be considered complete are on page 2 of this fonq.
Noted deviations from approved plans and specifications: own%a,
CAROB/oL
Signaturer? ,
I.. SEAL
Registration No. 19851 1�1651�
Date January 27,2000 ��0�� Nh ��
S► T U •
'•vHeeuets++.�
cc: Mr.David B. Mayes/City of Wilmington
Mr.Jim Walker/City of Wilmington
Building Inspector
JST/tsm
98244-2s
3Ee� Anortsw & Maks
CONSULTING ENGINEERS, INC.
9U4 Market Street W ilminston.NC 2646947$a
1
I

Sent b :RNDREU&KUSKE Jan-27-00 03:13pn from 9103439604'9107627877
na9e 3/ 3
PE Certification Requirements:
„ i• The drainage area to the system contains approximately the permitted acreage.
The drainage area to the system contains no more than the
upon area. permitted amount of built_
— ..3• MI the built-upon area associated with the project is graded such that the drains to the system runoff
.
4• The outlet/bypass structure elevations are per the approved plan.
AL5. The outlet structure is located per the approved plans.
Trash rack is provided on the outlet/bypass structure,
All slopes are grassed with permanent vegetation.
—4-8• Vegetated slopes are no steeper than 3:1.
.. � 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
pp plans.
f12. All required design depths are provided.
413. All required parts of the system are provided, such as vegetated shelf,and a
forebay.
.14. The overall dimensions of the system as shown on the approved per, are provided.
S:IWQS\STORMWATWORMS1PECERT.FOR
cc: Building Inspector
2

SW$ qC O30(o
ATTACHMENT A
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: -thc lotzre24. shall Oe covere4.by i nnperviu,:5 SorF ceS. 1 01—olo ' wee
1. No more than 85% squaro eet of y-lot,•imelifeling that portion of the right-of-way between the (rid 4eS,.,
edge of pavement and the front lot line, 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 statements 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 NC4C 2H.1008(g).
2. Supplement Forms
The applicable supplement form(s)listed below must be submitted for each BMP specified for this project:
Form SWII-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 Late Timely Renewal Without
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
Rqf
Form SWU-101 January 1998 Page 5 of 5

RECEIVED
Andrew & Kuske MAY 2 1999 John R. Andrew,P.E.
-- — q�l03G� J.A. Kuske,P.E.
CONSULTING ENGINEERS,INC. BY: J. Phillip Norris, P.E.
902 Market St. •Wilmington,North Carolina 28401-4733•Telephone [phone]•Fax [phone]•[e-mail]
May 20, 1999
Ms. Linda Lewis
NCDENR/Div. of Environmental Mgmt. sToRm
127 Cardinal Drive Extension Wilmington, NC 28405-3845 EAT
ER
RE: Westfall Office Park
Project No. SW8 990306
A& K Project No. 98244
Dear Ms. Lewis:
In response to your comments of May 14, 1999, please find the revised calculations,
plans, and the following responses:
• Temporary pool volume is revised on all supplement forms.
• All orifices have been calculated using the average head which makes the orifices
for ponds#1; #3, and#4 larger. Sizes have been changed on plans.
• Page 4 of application now indicates 85% future lot development.
• Due to the wetland constraints onsite, the road labeled future road will not be
constructed. Therefore, please disregard future road.
• The property north of Pond #4 is not planned to be developed at this time. In the
future, if the area is developed, the owner will either modify Pond #4 and permit or
provide other means of stormwater management.
• Pond #4 has been revised.
If you have any questions, please call.
Sincerely,
ANDREW& KUSKE
CONSULTING ENGINEERS, INC.
44.k.._ JS 444______7a;(2-----
Jo n S. Tunstall, P. E.
JST/tsm
Attachment
98244-20

Design Andrew and Kuske
Sheet
902 Market St. CONSULTING ENGINEERS, INC. Wilmington,N.C.28401
,._, Of
Check Job For Job No.
I
it
hIEs-rcx LL. DPf2c Re/ex
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2-1O-55 -}" 902 Market St. CONSULTING ENGINEERS, INC. Wilmington,N.C.28401
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. Date, Design A Andrew and Kuske Sheet
Z_i(,(/q 1 ei 902 Market St. CONSULTING ENGINEERS, INC. Wilmington,N.C.28401 Of
Check Job For / 5 r�ALL Q/�7 - Job No.
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Data for WESTFALL OFFICE PARK POND 1 Page 1
TYPE III 24—HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
WATERSHED ROUTING
� � 1
1
OSUBCATCHMENT REACH A POND nj LINK
SUBCATCHMENT 1 = DRAINAGE AREA TO POND 1 —> POND 1
REACH 1 = OUTLET PIPE —>
POND 1 = POND 1 —> REACH 1

Data for WESTFALL OFFICE PARK POND 1
Page 2
TYPE III 24—HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
SUBCATCHMENT 1 DRAINAGE AREA TO POND 1
PEAK= 27.67 CFS @ 12.16 HRS, VOLUME= 2.46 AF
ACRES CN SCS TR-20 METHOD
4.72 98 IMPERVIOUS AREA TYPE III 24—HOUR
1.53 50 GREEN AREA RAINFALL= 7.00 IN
6.25 86 SPAN= 10-20 HRS, dt=. 1 HRS
Method Comment Tc (min)
DIRECT ENTRY DRAINAGE AREA 15.0

Data for WESTFALL OFFICE PARK POND 1 Page 4
TYPE III 24—HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
POND 1 POND 1
Qin = 27.67 CFS @ 12.16 HRS, VOLUME= 2.46 AF
Qout= 8.83 CFS @ 12.60 HRS, VOLUME= 1.30 AF, ATTEN= 68%, LAG= 26.5 MIN
ELEVATION AREA INC.STOR CUM.STOR STOR—IND METHOD
(FT) (SF) (CF) (CF) PEAK STORAGE = 59132 CF
6.3 100 0 0 PEAK ELEVATION= 16.2 FT
13.5 8337 30373 30373 FLOOD ELEVATION= 17.0 FT
15.5 11294 19631 50004 START ELEVATION= 6.3 FT
17.0 13651 18709 68713 SPAN= 10-20 HRS, dt=.1 HRS
Tdet= 157 MIN (1.3 AF)
# ROUTE INVERT OUTLET DEVICES
1 P 13.5' 2" ORIFICE/GRATE
Q=.6 PI r"2 SQR(2g) SQR(H—r)
2 P 15.5' 3' x .42' ORIFICE/GRATE X 2
Q=.6 Width 2/3 SQR(2g) (H"1.5 — [H—Height]"1.5)
3 P 16.3' 16' SHARP—CRESTED RECTANGULAR WEIR
Q=C L H"1.5 C=3.27+.4 H/1 L=Length-2(.1 H)

Data for WESTFALL OFFICE PARK POND 1 Page 3
TYPE III 24-HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
REACH 1 OUTLET PIPE
Qin = 8.83 CFS @ 12.60 HRS, VOLUME= 1.30 AF
Qout= 8.70 CFS @ 12.61 HRS, VOLUME= 1.30 AF, ATTEN= 1%, LAG= .6 MIN
DEPTH END AREA DISCH
(FT) (SO-FT) (CFS) 36" PIPE STOR-IND+TRANS METHOD
0.0 0.0 0.00 PEAK DEPTH= .87 FT
.3 .4 .98 n= .013 PEAK VELOCITY= 5.1 FPS
.6 1.0 4.13 LENGTH= 50 FT TRAVEL TIME = .2 MIN
.9 1.8 9.24 SLOPE= .005 FT/FT SPAN= 10-20 HRS, dt=.1 HRS
2.1 5.3 39.49
2.4 6.1 46.10
2.7 6.7 50.27
2.8 6.9 50.73
2.9 7.0 50.26
3.0 7.1 47.16

Data for WESTFALL OFFICE PARK POND 1 Page 5
TYPE III 24—HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
WATERSHED ROUTING
\./
1
OSUBCATCHMENT
REACH /\POND 111 LINK
SUBCATCHMENT 1 = DRAINAGE AREA TO POND 1 —> POND 1
REACH 1 = OUTLET PIPE —>
POND 1 = POND 1 —> REACH 1

Data for WESTFALL OFFICE PARK POND 1 Page 6
TYPE III 24—HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
SUBCATCHMENT 1 DRAINAGE AREA TO POND 1
PEAK= 37.07 CFS @ 12.16 HRS, VOLUME= 3.31 AF
ACRES CN SCS TR-20 METHOD
4.72 98 IMPERVIOUS AREA TYPE III 24—HOUR
1.53 50 GREEN AREA RAINFALL= 9.00 IN
6.25 86 SPAN= 10-20 HRS, dt=. 1 HRS
Method Comment Tc (min)
DIRECT ENTRY DRAINAGE AREA 15.0

Data for WESTFALL OFFICE PARK POND 1 Page 8
TYPE III 24—HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
POND 1 POND 1
Qin = 37.07 CFS @ 12.16 HRS, VOLUME= 3.31 AF
Qout= 23.98 CFS @ 12.39 HRS, VOLUME= 2.14 AF, ATTEN= 35%, LAG= 14.0 MIN
ELEVATION AREA INC.STOR CUM.STOR STOR—IND METHOD
(FT) (SF) (CF) (CF) PEAK STORAGE = 64458 CF
6.3 100 0 0 PEAK ELEVATION= 16.7 FT
13.5 8337 30373 30373 FLOOD ELEVATION= 17.0 FT
15.5 11294 19631 50004 START ELEVATION= 6.3 FT
17.0 13651 18709 68713 SPAN= 10-20 HRS, dt=.1 HRS
Tdet= 124.7 MIN (2. 14 AF)
# ROUTE INVERT OUTLET DEVICES
1 P 13.5' 2" ORIFICE/GRATE
Q=.6 PI r"2 SQR(2g) SQR(H—r)
2 P 15.5' 3' x .42' ORIFICE/GRATE X 2
Q=.6 Width 2/3 SQR(2g) (H"1.5 — [H—Height]"1.5)
3 P 16.3' 16' SHARP—CRESTED RECTANGULAR WEIR
Q=C L H"1.5 C=3.27+.4 H/1 L=Length-2(.1 H)

Data for WESTFALL OFFICE PARK POND 1 Page 7
TYPE III 24-HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
REACH 1 OUTLET PIPE
Qin = 23.98 CFS @ 12.39 HRS, VOLUME= 2. 14 AF
Qout= 23.86 CFS @ 12.39 HRS, VOLUME= 2. 14 AF, ATTEN= 0%, LAG= .2 MIN
DEPTH END AREA DISCH
(FT) (SO-FT) (CFS) 36" PIPE STOR-IND+TRANS METHOD
0.0 0.0 0.00 PEAK DEPTH= 1.48 FT
.3 .4 .98 n= .013 PEAK VELOCITY= 6.9 FPS
.6 1.0 4.13 LENGTH= 50 FT TRAVEL TIME = . 1 MIN
.9 1.8 9.24 SLOPE= .005 FT/FT SPAN= 10-20 HRS, dt=.1 HRS
2.1 5.3 39.49
2.4 6. 1 46.10
2.7 6.7 50.27
2.8 6.9 50.73
2.9 7.0 50.26
3.0 7. 1 47.16

State of North Carolina
Department of Environment
and Natural Resources ■ •
Wilmington Regional Office
James B. Hunt, Jr., Governor liii
C D
R
Wayne McDevitt, Secretary
NORTH CAROLINA DEPARTMENT OF
Division of Water Quality ENVIRONMENT AND NATURAL RESOURCES
May 14, 1999
Mr. John Tunstall, P.E.
Andrew and Kuske
902 Market Street
Wilmington, NC 28401
Subject: ACKNOWLEDGEMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 990306
Westfall Office Park
New Hanover County
Dear Mr. Tunstall:
The Wilmington Regional Office received a Stormwater Management Permit Application for
Westfall Office Park on March 2, 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 supplements all show a temporary pool volume larger than the calculations have
shown. Also, there are two storage elevations shown, one for the State, and one for the
County. Since this is a State permit application, and an outlet has been provided at the
State storage elevation, please show only the State storage elevation and it's corresponding
volume on the supplement.
2. The supplement and calculations for Pond 1 indicate that a 1" orifice is provided, but the
pond detail sheet indicates a 1.5". Please revise.
3. Please indicate on Page 4 of the application that the future development is limited to 85%
of the lot area.
4. There is a small section of future road that is not included in the drainage area of any
pond. Please revise.
5. What is the deal with the portion of property noted as "outside of the Office Park
development and not included in the drainage area for Pond 4"? Will the developer require
it to provide it's own stormawater control?
6. Please use the average head in the orifice equation to determine the drawdown time. The
head will decrease as time goes by, decreasing the outflow rate. By using the average head
you get a better idea of the actual time it will take draw down the pond using the selected
orifice.
7. Please check the volume provided at elevation 16.1 for Pond 4. Based on a 0.1' increase
and a slope of 3:1, the total pond surface area added between 16 and 16.1 is only 474
square feet. The surface area at elevation 16.1 is therefore about 47,094 square feet, so
only 88,257 cubic feet of volume is provided in the pond, not 91,418 as reported.
127 Cardinal Dr.Ext.,Wilmington,North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10"/0 post-consumer paper

Mr. Tunstall
May 14, 1999
Stormwater Project No. SW8 990306
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 June 14, 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\990306.MAY
cc: Linda Lewis
Raiford Trask, Jr.
127 Cardinal Dr.Ext.,Wilmington,North Carolina 28405 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post-consumer paper

John R. Andrew, P.E.
Andrew & Kuske MAR CI 2 1499 J.A. Kuske, P.E.
CONSULTING ENGINEERS, INC. J. Phillip Norris, P.E.
BY:
902 Market St. • Wilmington, North Carolina 28401- i.s,s • Tck 3-9653 • Fax [phone]
February 23, 1999
NC DENR
*7\1
Division of Water Quality
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
Attn: Ms. Linda Lewis
RE: Westfall Office Park
New Hanover County
A&K Project No. 98244
Dear Ms. Lewis:
Enclosed are two sets of plans for the subject project, two sets of calculations,
the original Division of Water Quality stormwater management permit application
and one copy, two copies of the SWU-102 supplement form, two copies of the
stormwater narrative and a $420.00 check for the processing fee.
Please review this information for approval and contact us with any questions or
comments you may have. Thank you for your assistance on this project.
Sincerely,
ANDREW & KUSKE
CONSULTING ENGINEERS, INC.
John S. Tunstall, P. E.
JST/jpn/tsm
Enclosures
cc: Mr. Raiford Trask, Jr.
98244sw1

EROSION CONTROL AND STORMWATER MANAGEMENT NARRATIVE
WESTFALL OFFICE PARK
NEW HANOVER COUNTY, NORTH CAROLINA
FOR
RAIFORD G. TRASK, JR.
IIIAR 0 2 1999
1202 EASTWOOD ROAD BY:_q2eigee,
WILMINGTON, NC 28403
�oeoowna /
4ck\ CARO74,,, crer•
4 t SEAL R9
19851
111
00ogdanocirt°
FEBRUARY 1999
PREPARED BY:
ANDREW& KUSKE CONSULTING ENGINEERS, INC.
902 MARKET STREET
WILMINGTON, NORTH CAROLINA 28401
910/343-9653
910/343-9604(FAX)
A&K#98244

NARRATIVE
PROJECT DESCRIPTION:
The Westfall Office Park site is located on the east side of Military Cutoff Road in New
Hanover County. The drainage area for the development of the Office Park will encompass
approximately 62 acres, which only 10 acres will be disturbed during Phase I construction.
The site was previously permitted for 15 acres under New Hanover County Grading Permit
#GP78-95 issued December 22, 1998. The revised plans reflect associated changes in
designing the Industrial Park for 85% Impervious lot coverage.
SITE DESCRIPTION:
The site is a lightly to heavy vegetated tract located in New Hanover County with grades
ranging from 0.50%to 2.0%. Approximately 16 acres will be disturbed to allow construction
of the Office Park consisting of utilities, roadways, stormwater ditches and stormwater
ponds. The site was previously cultivated farmland and is presently stabilized with
vegetation.
EROSION CONTROL MEASURES:
The attached plans and specifications give the requirements for erosion control measures.
The plans direct the contractor to remove and replace the existing silt fence as required.
Some new silt fence will also be installed as shown on the plans. The detention ponds will
be used as silt basins during construction and restored to the proposed design contours
prior to completion of the project. Sediment will be removed as necessary to provide
adequate storage volume for subsequent rains. All roadway ditches, and drainage ditches
shall be stabilized with vegetation after being excavated to grade. When the contributing
drainage area has been adequately stabilized, remove all materials and any unsuitable soil,
and either salvage or dispose of it properly. Bring the disturbed area to proper grade, then
smooth and compact it. Appropriately stabilize all bare disturbed areas. A gravel
construction entrance will be provided as noted on the plans. Maintain the gravel
construction entrance in a condition to prevent mud or sediment from leaving the site. The
contractor shall inspect the construction entrance on a daily basis. This may require
periodic top dressing with additional stone. Any objectionable materials spilled, washed, or
tracked onto public roadways shall be removed immediately.
2

STORMWATER MANAGEMENT MEASURES:
The project site is located off Military Cutoff Road in New Hanover County. Land disturbing
on the site will exceed one acre which requires the site to comply with the state stormwater
regulations. Stormwater runoff from developments will be directed to grassed ditches,
which convey the stormwater to the ponds. The proposed stormwater detention pond will
be designed to achieve 90% TSS removal. The new ponds are being designed and
permitted for 85% of impervious area from the Office Park lots and also the contributing
roadway. The ponds are being designed for proposed and future development shown on
the plans. The storage volume will be released within the 2-5 day drawdown period as
shown in the calculations. Forebays are provided at each inlet to the pond. A 10 foot
vegetated shelf has also been provided at a 6:1 slope in the main part of the pond.
Vegetated shelves have not been provided in the forebays in accordance with item 6 on
page 2 of the state stormwater guidance document issued to Engineers and Developers on
February 9, 1998.
CONSTRUCTION SEQUENCE:
The contractor will install the gravel construction entrance and new silt fence prior to
beginning any grading operations. The existing silt fence on site will be fixed and/or
removed and replaced as required as noted on the plans. The detention ponds will be
used as silt basins during initial grading phases. The detention ponds will then be fine
graded to the proposed contours shown on the plans and the outlet structures and pipe will
be installed with rip rap protection. Disturbed areas will be landscaped or seeded upon
completion.
3

SECTION 02920
SOIL EROSION AND SEDIMENTATION CONTROL
1. GENERAL
1.1 Contractor shall take every reasonable precaution throughout construction to prevent
the erosion of soil and the sedimentation of streams, lakes, reservoirs, other water
impoundments, ground surfaces, or other property as required by State and Local
regulations.
1.2 The Contractor shall install all required silt fences, sediment basins, check dams, and
construction entrances at the initiation of work, and have these measures reviewed and
approved by the local permit authority prior to clearing and grading operations.
1.3 The.Contractor shall, within 15 days of suspension or completion of land disturbing
activities, provide permanent protective covering for disturbed areas. Temporary and
permanent erosion control measures shall be coordinated to assure economical, effective,
and continuous erosion and siltation control throughout the construction and
post-construction period.
2. PRODUCTS
2.1 Asphalt for anchoring mulch shall be Type SS-1 Emulsion.
2.2 Fertilizer shall be 10-10-10 grade or equivalent.
2.3 Lime shall be dolomitic agricultural ground limestone containing not less than 10
percent magnesium oxide.
2.4 Mulch shall be small grain straw, hay, wood chips, asphalt emulsion, jute or other
suitable material free of undesirable weed seed.
2.5 Phosphate shall be 20 percent superphosphate or equivalent.
2.6 Seed shall be 30 pounds carpet grass, 30 pounds Bermuda, 20 pounds Creeping
Fescue, and 20 pounds Kentucky 31 per 100 pounds of seed. Purity of seed shall be a
minimum of 98 percent and germination shall be a minimum of 85 percent. Mixture shall
contain 20 pounds rye per 100 pounds if planted November through March.
4

2.7 Silt fence shall consist of NCDOT Class A fabric supported by wood or metal posts
spaced not more than 6 feet on center. The bottom of the fabric shall be buried a minimum
of 6 inches.
2.8 Gravel for check dams shall be#57 washed stone.
2.9 Aggregate for construction entrance shall be#4 washed stone.
2.10 Stone rip rap for check dams and erosion control shall be NCDOT Class A or B as
shown.
2.11 Wood Stakes for tree protection shall be 4' tall, placed at 6' intervals at the dripline of
the tree to be preserved.
3. EXECUTION
3.1 General: Take every practicable measure during construction or suspension to work to
minimize erosion and siltation. Measures should include good construction practices,
temporary physical barriers to sediment travel, settling basins for new ditches, and
establishment of vegetative cover.
3.2 Construction Practices
3.2.1 Avoid dumping soil or sediment into any wetland or watercourse.
3.2.2 Maintain an undisturbed vegetative buffer where possible between a natural
watercourse and trenching and grading operations.
3.2.3 Avoid equipment crossings of streams, creeks, and ditches where practicable.
3.2.4 Grade all cut, fill and ditch slopes to minimum slope of 3:1, unless otherwise shown
or directed.
3.3 Temporary Physical Barriers are required where sedimentation on off site property or
excessive erosion is a problem.
3.3.1 Mulch shall be used for temporary stabilization of areas subject to excessive erosion,
and for protection of seed beds after planting where required.
1. Apply grain straw and hay at a rate of 75 to 100 pounds per 1000 square feet and
wood chips at a rate of 500 pounds per 1000 square feet. Jute and mesh should be
installed as per manufacturer's instructions.
5

2. Asphalt emulsion for slope stabilization should be applied at a rate of 1000
gallons per acre. Asphalt emulsion used for anchoring straw should be applied at a rate of
150 gallons per ton of straw.
3.3.2 Silt Fences shall be used at the base of slopes to restrict movement of sediment
from the site.
3.3.3 Stone Check Dams, placed at the discharges of creeks, ditches, and swales, shall
consist of Class A rip rap at minimum two feet high and three feet thick across the
watercourse, with a one foot thick layer of gravel on upstream side.
3.4 Sedimentation Basins are required for large ditches to provide for settling of sediments
prior to the ditch discharging offsite. Basins should be constructed with sufficient surface
area, a minimum 2 feet of sediment storage depth, and minimum 2 feet of freeboard to
provide for storage of stormwater and settled soil. Stone check dams shall be placed at the
discharge of each basin.
3.5 Vegetative Cover: Establish permanent vegetative cover on all unpaved areas
disturbed by the work.
3.5.1 Preparation of Seedbed: Areas to be seeded shall be scarified to a depth of 4 inches
and until a firm, well pulverized, uniform seedbed is prepared. Lime, phosphorous, and
fertilizer shall be applied during the scarification process in accordance with the following
rates:
Lime: 45 pounds per 1000 square feet
Phosphorous: 20 pounds per 1000 square feet
Fertilizer. 17 pounds per 1000 square feet
3.5.2 Seeding: Disturbed areas along roads and ditches shall be seeded with 2 to 3
pounds per 1000 square feet of the specified seed mixture during the period from
December through January. Seeding performed during the period from March through June
does not require Rye seed in the mixture and may be applied at a rate of 1 to 2 pounds per
1000 square feet. Seed shall be worked into the bed to a depth of 1/4 inch.
3.5.3 Mulch all areas immediately after seeding. Mulch shall be applied and anchored as
specified hereinbefore.
3.6 Construction Entrance: Provide an aggregate drive, 25 feet wide by 50 feet long by 6
inches thick at each entrance to the site used by construction vehicles, until such time as
the permanent roadway is constructed.
6

3.7 Maintenance: The Owner and Contractor shall be responsible for maintaining all
temporary and permanent erosion control measures. Temporary structures shall be
maintained until such time as vegetation is firmly established in the area protected by the
structure. Permanent streambank protection and grassed areas shall be maintained until
completion of the project. Areas which fail to show a suitable stand of grass or which are
damaged by erosion shall be immediately repaired.
END OF SECTION

Date, Design Andrew and Kuske Sheet
-74t 902 Market St. CONSULTING ENGINEERS,INC. Wilmington,N.C.28401 I
Of
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Date, Design Andrew and Kuske Sheet
902 Market St. CONSULTING ENGINEERS, INC. Wilmington,N.C.28401 Of
Check Job For IN/. fftJ/ 014,cf.C e
Job No.
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Data for WESTFALL OFFICE PARK POND 2 Page 1
TYPE III 24—HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
WATERSHED ROUTING
1111
OSUBCATCHMENT REACH A POND PN] LINK
SUBCATCHMENT 1 = DRAINAGE AREA TO POND 2 —> POND 1
REACH 1 = OUTLET PIPE —>
POND 1 = POND 2 —> REACH 1

Data for WESTFALL OFFICE PARK POND 2 Page 2
TYPE III 24—HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
SUBCATCHMENT 1 DRAINAGE AREA TO POND 2
PEAK= 72.65 CFS @ 12.22 HRS, VOLUME= 7.02 AF
ACRES CN SCS TR-20 METHOD
13.53 98 IMPERVIOUS AREA(85%) TYPE III 24—HOUR
3.68 50 GREEN AREA RAINFALL= 7.00 IN
17.21 88 SPAN= 10-20 HRS, dt=.1 HRS
Method Comment Tc (min)
DIRECT ENTRY DRAINAGE AREA 20.0

Data for WESTFALL OFFICE PARK POND 2 Page 4
TYPE III 24—HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
POND 1 POND 2
Qin = 72.65 CFS @ 12.22 HRS, VOLUME= 7.02 AF
Qout= 21.26 CFS @ 12.74 HRS, VOLUME= 3.78 AF, ATTEN= 71%, LAG= 31.0 MIN
ELEVATION AREA INC.STOR CUM.STOR STOR—IND METHOD
(FT) (SF) (CF) (CF) PEAK STORAGE = 172861 CF
6.8 100 0 0 PEAK ELEVATION= 17.7 FT
14.3 22052 83070 83070 FLOOD ELEVATION= 19.0 FT
16.5 27266 54250 137320 START ELEVATION= 6.8 FT
19.0 33495 75951 213271 SPAN= 10-20 HRS, dt=.1 HRS
Tdet= 156 MIN (3.74 AF)
# ROUTE INVERT OUTLET DEVICES
1 P 14.3' 3" ORIFICE/GRATE
Q=.6 PI r"2 SQR(2g) SQR(H—r)
2 P 16.5' 2.75' x .5' ORIFICE/GRATE X 3
Q=.6 Width 2/3 SQR(2g) (H"1.5 — [H—Height]"1.5)
3 P 17.6' 16' SHARP—CRESTED RECTANGULAR WEIR
Q=C L H"1.5 C=3.27+.4 H/1 L=Length-2(.1 H)

Data for WESTFALL OFFICE PARK POND 2 Page 3
TYPE III 24-HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
REACH 1 OUTLET PIPE
Qin = 21.26 CFS @ 12.74 HRS, VOLUME= 3.78 AF
Qout= 21.31 CFS @ 12.74 HRS, VOLUME= 3.78 AF, ATTEN= 0%, LAG= 0.0 MIN
DEPTH END AREA DISCH
(FT) (SO-FT) (CFS) 42" PIPE STOR-IND+TRANS METHOD
0.0 0.0 0.00 PEAK DEPTH= 1.27 FT
.4 .5 1.49 n= .013 PEAK VELOCITY= 6.6 FPS
.7 1.4 6.23 LENGTH= 50 FT TRAVEL TIME = . 1 MIN
1. 1 2.4 13.93 SLOPE= .005 FT/FT SPAN= 10-20 HRS, dt=. 1 HRS
2.5 7.2 59.56
2.8 8.3 69.54
3.2 9.1 75.82
3.3 9.4 76.53
3.4 9.5 75.82
3.5 9.6 71.14

' Data for WESTFALL OFFICE PARK POND 2 Page 5
TYPE III 24—HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
WATERSHED ROUTING
2/
Adik
12/-
11111
OSUBCATCHMENT
REACH /\POND 2 LINK
SUBCATCHMENT 1 = DRAINAGE AREA TO POND 2 —> POND 1
REACH 1 = OUTLET PIPE —>
POND 1 = POND 2 —> REACH 1

Data for WESTFALL OFFICE PARK POND 2 Page 6
TYPE III 24—HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
SUBCATCHMENT 1 DRAINAGE AREA TO POND 2
PEAK= 96.51 CFS @ 12.22 HRS, VOLUME= 9.34 AF
ACRES CN SCS TR-20 METHOD
13.53 98 IMPERVIOUS AREA(85%) TYPE III 24—HOUR
3.68 50 GREEN AREA RAINFALL= 9.00 IN
17.21 88 SPAN= 10-20 HRS, dt=.1 HRS
Method Comment Tc (min)
DIRECT ENTRY DRAINAGE AREA 20.0

Data for WESTFALL OFFICE PARK POND 2 Page 8
TYPE III 24—HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
POND 1 POND 2
Qin = 96.51 CFS @ 12.22 HRS, VOLUME= 9.34 AF
Qout= 57.93 CFS @ 12.51 HRS, VOLUME= 6.08 AF, ATTEN= 40%, LAG= 17.2 MIN
ELEVATION AREA INC.STOR CUM.STOR STOR—IND METHOD
(FT) (SF) (CF) (CF) PEAK STORAGE = 191803 CF
6.8 100 0 0 PEAK ELEVATION= 18.3 FT
14.3 22052 83070 83070 FLOOD ELEVATION= 19.0 FT
16.5 27266 54250 137320 START ELEVATION= 6.8 FT
19.0 33495 75951 213271 SPAN= 10-20 HRS, dt=.1 HRS
Tdet= 125.6 MIN (6.02 AF)
# ROUTE INVERT OUTLET DEVICES
1 P 14.3' 3" ORIFICE/GRATE
Q=.6 PI r"2 SQR(2g) SQR(H—r)
2 P 16.5' 2.75' x .5' ORIFICE/GRATE X 3
Q=.6 Width 2/3 SQR(2g) (H"1.5 — [H—Height]-1.5)
3 P 17.6' 16' SHARP—CRESTED RECTANGULAR WEIR
Q=C L H"1.5 C=3.27+.4 H/1 L=Length-2(.1 H)

Data for WESTFALL OFFICE PARK POND 2 Page 7
TYPE III 24-HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
REACH 1 OUTLET PIPE
Qin = 57.93 CFS @ 12.51 HRS, VOLUME= 6.08 AF
Qout= 57.92 CFS @ 12.51 HRS, VOLUME= 6.08 AF, ATTEN= 0%, LAG= .2 MIN
DEPTH END AREA DISCH
(FT) (SO-FT) (CFS) 42" PIPE STOR-IND+TRANS METHOD
0.0 0.0 0.00 PEAK DEPTH= 2.40 FT
.4 .5 1.49 n= .013 PEAK VELOCITY= 8.2 FPS
.7 1.4 6.23 LENGTH= 50 FT TRAVEL TIME = .1 MIN
1.1 2.4 13.93 SLOPE= .005 FT/FT SPAN= 10-20 HRS, dt=.1 HRS
2.5 7.2 59.56
2.8 8.3 69.54
3.2 9. 1 75.82
3.3 9.4 76.53
3.4 9.5 75.82
3.5 9.6 71.14

Date Design Andrew and Kuske Sheet
2-1 I.49 CONSULTING ENGINEERS,INC.
902 Market St. Wilmington,N.C.28401 Of
Check Job c rn TE,e. amciAtxrct?s For wes..020 l e. pat. Job No.
9824¢
Nd L!VG-k- g :rn, /ioi
-Dg,4 iNAc P A =
42, L:avouo».1 j R *
— R-c'i. Ay -t' INAGe cebtJr'
— /812 =d,qv,11 c
— vt;Lo PP t ( 1 lareja. . 7, 7 Z
rnP. v olkS A +) 7,7zCes`/J=lo-
646
S & n vxi fl tz--j
Zn1 LLS j IO = G S 6 A c
To Ire v1ou5f 7G . I °/
7.5.. )& `' pbN & S00/
p.91- -7. 5r-�;
90% r�
S�7/74 = 2 ,s
Lfi�h'N C 00/ZEA L '.
�A = 84tAc(m.6)-zg) /es/4 "1z
/Ff t-
VO.0 rn (modLclotL.O1sDn!
lZ 4- 2.06,Ze)))4-0 = 23©g 1=f�
O,g_/ 28 g'c /,7,z gt)p ,
c = 2,� o/c,/C�cY
eo h ✓Z,4,2/
Fore � ' ; /Vofzr-,lNc- fo01- VD6, _ 47/041fr3
7/0¢Fr

Date. Design Andrew and Kuske Sheet
er 902 Market St. CONSULTING ENGINEERS,INC. Wilmington,N.C.28401 Of
Check Job
For �. /��j�/7LL Job No.
�/
ITV eve, 9F24f
Pam'/&f - j sia *.3
= (to 2.$)(4. 34,Z25,6Z,C) = 1,46 GA
Q/p 2 = CD, 25�C 5.4�) ' .(� Z AG J = //, 74 cf
y

Data for WESTFALL OFFICE PARK POND 3 Page 13
TYPE III 24-HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 12 Feb 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
WATERSHED ROUTING =_ ________ ===a= ====a=====_____:______________
0
Ni
A
I
1
OSUBCATCHMENT 0 REACH APDND [NJLINK
SUBCATCRMENT 1 = DRAINAGE AREA -> POND 1
REACH 1 = OUTLET PIPE ->
POND 1 = POND 2 -> REACH 1

. Data for WESTFALL OFFICE PARK POND 3 Page 14
TYPE III 24-HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 12 Feb 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
SUBCATCHMENT 1 DRAINAGE AREA
PEAK= 38.76 CFS @ 12.16 HRS, VOLUME= 3.45 AF
ACRES CN SCS TR-20 METHOD
6.56 98 IMPERVIOUS AREA( (85%) TYPE III 24-HOUR
2.06 50 GREEN AREA RAINFALL= 7.00 IN
8.62 87 SPAN= 10-20 HRS, dt=.1 HRS
Method Comment Tc (min)
DIRECT ENTRY DRAINAGE AREA 15.0

Data for WESTFALL OFFICE PARK POND 3 Page 16
TYPE III 24-HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 12 Feb 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
POND 1 POND 2
Qin = 38.76 CFS 0 32.16 HRS, VOLUME= 3 .45 AF
Qout= 11.83 CFS 0 12.62 HRS, VOLUME= 1.69 AF, ATTEN= 69%, LAG= 27.6 MIN
ELEVATION AREA INC.STOR CUM.STOR STOR-IND METHOD
(FT) (SF) (CF) (CF) PEAK STORAGE = 86070 CF
7.5 50 0 0 PEAK ELEVATION= 17.6 FT
15.0 12511 47104 47104 FLOOD ELEVATION= 19.0 FT
16.0 14403 13457 60561 START ELEVATION= 7.5 FT
17.0 16295 15349 75910 SPAN= 10-20 HRS, dt=.1 HRS
18.0 18295 17295 93205 Tdet= 167 MIN (1.69 AF)
19.0 20293 19294 112499
# ROUTE INVERT OUTLET DEVICES
1 P 15.0' 2" ORIFICE/GRATE
Q=.6 PI r"2 SQR(2g) SQR(H-r)
2 P 17.0' 3' x .42' ORIFICE/GRATE X 3
Q=.6 Width 2/3 SQR(2g) (H"1.5 - [H-Height] "1.5)
3 P 17.6 ' 16' SHARP-CRESTED RECTANGULAR WEIR
Q=C L H"1.5 C=3.27+.4 H/1 L=Length-2(.1 H)

, Data for WESTFALL OFFICE PARK POND 3 Page 15
TYPE III 24-HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 12 Feb 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
REACH 1 OUTLET PIPE
Qin = 11.83 CFS @ 12.62 HRS, VOLUME= 1.69 AF
Qout= 11.75 CFS 0 12.62 HRS, VOLUME= 1.69 AF, ATTEN= 1%, LAG= .4 MIN
DEPTH END AREA DISCH
(FT) (SO-FT) (CFS) 36" PIPE STOR-IND+TRANS METHOD
0.0 0.0 0.00 PEAK DEPTH= 1.13 FT
.3 .4 .76 n= .013 PEAK VELOCITY= 4.8 FPS
.6 1.0 3.20 LENGTH= 40 FT TRAVEL TIME = .1 MIN
.9 1.8 7.15 SLOPE= .003 FT/FT SPAN= 10-20 HRS, dt=.1 HRS
2.1 5.3 30.59
2.4 6.1 35.71
2.7 6.7 38.94
2.8 6.9 39.30
2.9 7.0 38.93
3.0 7.1 36.53

Data for WESTFALL OFFICE PARK POND 3 Page 9
TYPE III 24-HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 12 Feb 99
HydroCAD 5.9 . 000479 (c) 1986-1998 Aptlied Microcomputer Systems
WATERSHED ROUTING ============__= _ _=======_==== _===_===========
0
e
( )SUBCATCHNENT El REACH A POND LINK
SUBCATCHNENT 1 = DRAINAGE AREA -> POND 1
REACH 1 = OUTLET PIPE ->
POND 1 = POND 2 -> REACH 1

Data for WESTFALL OFFICE PARK POND 3 Page 10
TYPE III 24-HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 12 Feb 99
HvdroCAD 5.01 000479 (c) 1986-1998 APplied Microcomputer Svstems
SUBCATCHMENT 1 DRAINAGE AREA
PEAK= 51.70 CFS 8 12.15 HRS, VOLUME= 4.61 AF
ACRES CN SCS TR-20 METHOD
6.56 98 IMPERVIOUS AREA( (85t) TYPE III 24-HOUR
2.06 50 GREEN AREA RAINFALL= 9.00 IN
8.62 87 SPAN= 10-20 HRS, dt=.1 HRS
Method Comment Tc (min)
DIRECT ENTRY DRAINAGE AREA 15.0

Data for WESTFALL OFFICE PARK POND 3 Page 12
TYPE III 24-HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 12 Feb 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
POND 1 POND 2
Qin = 51.70 CFS @ 12.15 HRS, VOLUME= 4.61 AF
Qout= 32.11 CFS 0 12.40 HRS, VOLUME= 2.83 AF, ATTEN= 38%, LAG= 15.0 MIN
ELEVATION AREA INC.STOR CUM.STOR STOR-IND METHOD
(FT) (SF) (CF) (CF) PEAK STORAGE = 93776 CF
7.5 50 0 0 PEAK ELEVATION= 18.0 FT
15.0 12511 47104 47104 FLOOD ELEVATION= 19.0 FT
16.0 14403 13457 60561 START ELEVATION= 7.5 FT
17.0 16295 15349 75910 SPAN= 10-20 HRS, dt=.1 HRS
18.0 18295 17295 93205 Tdet= 129.4 MIN (2.83 AF)
19.0 20293 19294 112499
# ROUTE INVERT OUTLET DEVICES
1 P 15.0' 2" ORIFICE/GRATE
Q=.6 PI r"2 SQR(2g) SQR(H-r)
2 P 17.0' 3' x .42' ORIFICE/GRATE X 3
Q=.6 Width 2/3 SQR(2g) (H"1.5 [H-Height] "1.5)
3 P 17.6' 16' SHARP-CRESTED RECTANGULAR WEIR
Q=C L H"1.5 C=3.27+.4 H/1 L=Length-2 (.1 H)

Data for WESTFALL OFFICE PARK POND 3 Page 11
TYPE III 24-HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 12 Feb 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
REACH 1 OUTLET PIPE
Qin = 32.11 CFS 0 12.40 FIRS, VOLUME= 2.83 A?
Qout= 32.17 CFS 0 12.41 HRS, VOLUME= 2.83 AF, ATTEN= Oe, LAG= .2 MIN
DEPTH END AREA DISCH
(FT) ISO-FT) (CFS) 36" PIPE STOR-IND+TRANS METHOD
0.0 0.0 0.00 PEAK DEPTH= 2.20 FT
.3 .4 .76 n= .013 PEAK VELOCITY= 5.8 FPS
.6 1.0 3.20 LENGTH= 40 FT TRAVEL TIME = .1 MIN
.9 1.8 7.15 SLOPE= .003 FT/FT SPAN= 10-20 HRS, dt=.1 HRS
2.1 5.3 30.59
2.4 6.1 35.71
2.7 6.7 38.94
2.8 6.9 39.30
2.9 7.0 38.93
3 .0 7.1 36.53

Date Design Andrew and Kuske (Sheet
Z-<I-99 902 Market St. CONSULTING ENGINEERS,INC. Wilmington,N.C.28401
�
Check Job L�©4r4 I A r For 1 �`p /c Job No.
31.
W
-- ,79A1,0
-/ 2.V/Av OG,E fizzed - Z9 94 SIG•
aP ,pCDDwnJ p c"-r,97a e/z4//azi
E D /Gv = 4,16Z/ FTZ = I.48A4
, c,om Ai/.r.) £/�,,/ = 3g539`rL=
Q7ivd A ,2.- #47 Z ,5 A -
2VEG0$04e = 25,5 6 Ac.
ee/v =5,.90
fity
z,o/NAee. Aviv . Z9 5G AG
snip Vious ,gyp = 62,e/ zz , D9 = az .99Ac,
90/ 7 Zou�L
_ &9-9660,DZS 35 4,0) = 1o54z Fr Z
3s 95 , Jr z
VoLu/g Cat daz.or/o,v
%z zo,g9 1 _1' zoJD I360 = 88,5/4•�j---3
2,e©v/o 27 93;. Fr 3 5,�.
C`.OeC. C.r�r/tJri4JJ • 9 , /y�/7z
u 56 4`D�A".'e
g,4 y : Narzrne1. Poo I- /3 8,7 7._3
24'00 3773c7- = 21755�T3
PAD' t :oE p 2-7 '7 sow F/-
2 l s -2

Date Design Andrew and Kuske Sheet
Z_r - 1 902 Market St. CONSULTING ENGINEERS, INC. Wilmington,N.C.28401 Of
Check Job For Ii.ESrF4LL oFF ICE rJob No.
I' 44
II 7" V LG P LA PJ O � -FO 7 # 4 II
4)ay = 69,z5X3./7X2A,96/10
loy� = , � ,2�XZgi9G,ac) = 3/ 4'3 C12,

, Data for WESTFALL OFFICE PARK POND 4 Page 5
TYPE III 24—HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
WATERSHED ROUTING
4
\//,
4
OSUBCATCHMENT
REACH /\POND rj LINK
SUBCATCHMENT 4 = DRAINAGE AREA POND 4 —> POND 4
REACH 4 = OUTLET PIPE —>
POND 4 = POND 4 —> REACH 4

Data for WESTFALL OFFICE PARK POND 4 Page 6
TYPE III 24—HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
SUBCATCHMENT 4 DRAINAGE AREA POND 4
PEAK= 104.5 CFS @ 12.35 HRS, VOLUME= 12.06 AF
ACRES CN SCS TR-20 METHOD
22.99 98 IPERVIOUS AREA TYPE III 24—HOUR
6.97 50 GREEN AREA RAINFALL= 7.00 IN
29.96 87 SPAN= 10-20 HRS, dt=.1 HRS
Method Comment Tc (min)
DIRECT ENTRY DRAINAGE AREA 30.0

Data for WESTFALL OFFICE PARK POND 4 Page 8
TYPE III 24-HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
POND 4 POND 4
Qin = 104.5 CFS @ 12.35 HRS, VOLUME= 12.06 AF
Qout= 31.36 CFS @ 13.00 HRS, VOLUME= 6.54 AF, ATTEN= 70%, LAG= 38.7 MIN
ELEVATION AREA INC.STOR CUM.STOR STOR-IND METHOD
(FT) (SF) (CF) (CF) PEAK STORAGE = 298064 CF
6.5 50 0 0 PEAK ELEVATION= 17.5 FT
14.0 36956 138773 138773 FLOOD ELEVATION= 18.5 FT
15.0 41788 39372 178145 START ELEVATION= 6.5 FT
16.0 46620 44204 222349 SPAN= 10-20 HRS, dt=. 1 HRS
17.0 51572 49096 271445 Tdet= 159.6 MIN (6.48 AF)
18.0 56524 54048 325493
18.5 59000 28881 354374
# ROUTE INVERT OUTLET DEVICES
1 P 14.0' 4" ORIFICE/GRATE
Q=.6 PI r"2 SQR(2g) SQR(H-r)
2 P 16.2' 3.25' x .67' ORIFICE/GRATE X 3
Q=.6 Width 2/3 SQR(2g) (H"1.5 - [H-Height]-1.5)
3 P 17.5' 16' SHARP-CRESTED RECTANGULAR WEIR
Q=C L H"1.5 C=3.27+.4 H/17.5 L=Length-2(. 1 H)

Data for WESTFALL OFFICE PARK POND 4 Page 7
TYPE III 24-HOUR RAINFALL= 7.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
REACH 4 OUTLET PIPE
Qin = 31.36 CFS @ 13.00 HRS, VOLUME= 6.54 AF
Qout= 31.29 CFS @ 13.10 HRS, VOLUME= 6.54 AF, ATTEN= 0%, LAG= 6. 1 MIN
DEPTH END AREA DISCH
(FT) (SQ-FT) (CFS) 48" PIPE STOR-IND+TRANS METHOD
0.0 0.0 0.00 PEAK DEPTH= 1.71 FT
.4 .7 1.64 n= .013 PEAK VELOCITY= 6. 1 FPS
.8 1.8 6.89 LENGTH= 60 FT TRAVEL TIME = .2 MIN
1.2 3.2 15.41 SLOPE= .003 FT/FT SPAN= 10-20 HRS, dt=. 1 HRS
2.8 9.4 65.87
3.2 10.8 76.90
3.6 11.9 83.85
3.8 12.3 84.63
3.9 12.5 83.85
4.0 12.6 78.68

t,
Data for WESTFALL OFFICE PARK POND 4 Page 9
TYPE III 24—HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
WATERSHED ROUTING
4
4
\//,
(-)SUBCATCHMENT REACH APOND nj LINK
SUBCATCHMENT 4 = DRAINAGE AREA POND 4 —> POND 4
REACH 4 = OUTLET PIPE —>
POND 4 = POND 4 —> REACH 4

Data for WESTFALL OFFICE PARK POND 4 Page 10
TYPE III 24—HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
SUBCATCHMENT 4 DRAINAGE AREA POND 4
PEAK= 140.2 CFS @ 12.35 HRS, VOLUME= 16.13 AF
ACRES CN SCS TR-20 METHOD
22.99 98 IPERVIOUS AREA TYPE III 24—HOUR
6.97 50 _ GREEN AREA RAINFALL= 9.00 IN
29.96 87 SPAN= 10-20 HRS, dt=.1 HRS
Method Comment Tc (min)
DIRECT ENTRY DRAINAGE AREA 30.0

Data for WESTFALL OFFICE PARK POND 4 Page 12
TYPE III 24-HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
POND 4 POND 4
Qin = 140.2 CFS @ 12.35 HRS, VOLUME= 16.13 AF
Qout= 76.51 CFS @ 12.74 HRS, VOLUME= 10.57 AF, ATTEN= 45%, LAG= 23.2 MIN
ELEVATION AREA INC.STOR CUM.STOR STOR-IND METHOD
(FT) (SF) (CF) (CF) PEAK STORAGE = 339821 CF
6.5 50 0 0 PEAK ELEVATION= 18.2 FT
14.0 36956 138773 138773 FLOOD ELEVATION= 18.5 FT
15.0 41788 39372 178145 START ELEVATION= 6.5 FT
16.0 46620 44204 222349 SPAN= 10-20 HRS, dt=.1 HRS
17.0 51572 49096 271445 Tdet= 132.4 MIN (10.57 AF)
18.0 56524 54048 325493
18.5 59000 28881 354374
# ROUTE INVERT OUTLET DEVICES
1 P 14.0' 4" ORIFICE/GRATE
Q=.6 PI r"2 SQR(2g) SQR(H-r)
2 P 16.2' 3.25' x .67' ORIFICE/GRATE X 3
Q=.6 Width 2/3 SQR(2g) (H"1.5 - [H-Height] "1.5)
3 P 17.5' 16' SHARP-CRESTED RECTANGULAR WEIR
Q=C L H"1.5 C=3.27+.4 H/17.5 L=Length-2( . 1 H)

Data for WESTFALL OFFICE PARK POND 4 Page 11
TYPE III 24-HOUR RAINFALL= 9.00 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS 20 May 99
HydroCAD 5.01 000479 (c) 1986-1998 Applied Microcomputer Systems
REACH 4 OUTLET PIPE
Qin = 76.51 CFS @ 12.74 HRS, VOLUME= 10.57 AF
Qout= 77.04 CFS @ 12.73 HRS, VOLUME= 10.56 AF, ATTEN= 0%, LAG= 00.0 MIN
DEPTH END AREA DISCH
(FT) (SQ-FT) (CFS) 48" PIPE STOR-IND+TRANS METHOD
0.0 0.0 0.00 PEAK DEPTH= 3.19 FT
.4 .7 1.64 n= .013 PEAK VELOCITY= 7. 1 FPS
.8 1.8 6.89 LENGTH= 60 FT TRAVEL TIME = .1 MIN
1.2 3.2 15.41 SLOPE= .003 FT/FT SPAN= 10-20 HRS, dt=. 1 HRS
2.8 9.4 65.87
3.2 10.8 76.90
3.6 11.9 83.85
3.8 12.3 84.63
3.9 12.5 83.85
4.0 12.6 78.68

JAN-22-1999 12:45 FROM DEM WATER QUALITY SECTION TO WIRO P.01/01
State of North Carolina
Department of Environment I r. a-
and Natural Resources lot{ S
Division of Water QualityAIM
James B. Hunt, Jr., Governor V
Wayne McDevitt, Secretary _ _„ _ __. -.A. Preston Howard, Jr., P.E., Director
January 22, 1999
Mr. John Tunstall, P.E.
Andrew and Kuske
902 Main Street
Wilmington,NC 28401
Subject: Howe Creek ORW
Westfall Office Park
New Hanover County
Dear Mr. Tunstall:
This letter is to clarify the confusion arising from your December 15, 1998 request to
consider Howe Creek as a freshwater ORW. Howe Creek is currently classified as SA ORW.
As Linda Lewis explained in her January 7, 1999 correspondence to you, the Fourth Directive
allows the implementation of non-SA requirements for SA waters when it can be demonstrated
that chlorides concentrations are less than 500 mg/1 at a point more than one half mile from the
project.
The Fourth Directive discusses the implementation of alternative requirements with
respect to SA waters,but does not specifically address SA ORW. However, the directive
should still be applied in keeping with its intent, which is to change SA requirements to non-SA
requirements if the chlorides testing criteria are met. It is my understanding that you have
effectively demonstrated that the chlorides criteria have been met per the Fourth Directive
guidance. In keeping with the intent of the directive, the state stormwater management permit
requirements for this project should be changed from SA ORW to ORW. Therefore.your
project would be subject to the requirements for freshwater ORW defined in T15A NCAC 02H
.1007(1).
If you have any questions regarding this issue please contact either myself at(919)733-
5083,ext. 537 or Linda Lewis at(910) 395-3900.
Sincerely,
Jeanette C. Powell
Stormwater and General Permits Unit
Cc: Linda Lewis,WIRO
PC. Box 29535. Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50%recycled/10%post-consumer paper
TOTAL P.Q1

RECZTVED
JAN 1 2 1999
BY:
NEW HANG VER COL \T
Czunri
I211 [ 198
LZNZA
C.CN77,C_ -_17C•
- - -
chment
\ •

A&K#98244
ENGINEERING&FACILITIES
.�1-43P,' APPLICATION FOR PERMIT FOR A 1� ``t,�
� LAND-DISTURBING ACTIVITY File Nu ber
< . 55 00
i
. o: UNDER THE CONDITIONS SET FORTH BY Fee Paid
'ar irot°. THE NEW HANOVER COUNTY
SOIL EROSION AND SEDIMENTATION CONTROL ORDINANCE Dat
ki*--
Applicant: Raiford G. Trask, Jr. Applicant's Agent: Andrew& Kuske Consulting Eng. Inc.
Address: 1202 Eastwood Road Address: 902 Market Street
Wilmington, NC 28403 Wilmington, NC 28403
Telephone Number: 910-313-0795 Telephone Number: 910-343-9653
Total Acres of Land Disturbance: 15 Purpose of Development: Office Park
Location and Description of Land Disturbance:
East side of Military Cutoff Road; approximately 1600 ft. south of the intersection of Military Cutoff Road and
Old MacCumber Rd.
STATEMENT OF FINANCIAL RESPONSIBILITY
Land owner(s) of Record Person or firm(s) financially responsible for the
iand-disturbing activity. if not a North Carolina
resident you must have a N.C. agent (List Below)
Name: Raiford G. Trask, Jr. Name: Raiford G. Trask, Jr.
Address: 1202 Eastwood Road Address: 1202 Eastwood Road
Wilmington, NC 28403 Wilmington, NC 28403
Telephone Number: 910-313-0795 Telephone Number: 910-313-0795
Location of deed(s) or instrument(s): County New Hanover Book Page
The above information is true and correct to the best of my knowledge and belief and was provided by me while under oath. (This form
must be signed by the financially responsible person if an individual and by an officer,director, partner, attorney-in-fact, or other person
of authority to execute instruments for the financially responsible person if not an individual.) I agree to provide corrected information
should there be any change in the information provided herein.
Date: November 11, 1998 Name (Type or Print) Ratfcwd"G. Trask, Jr.
Title: Owner Signature:
V U
I, -feria M r'olernan , a Notary Public of the County of New Hanover State of North
Carolin I` fir' that Raiford G Trash Jr appeared personally before me this day and
beini k1t edged that the above form was executed by him.
S
=,(3 i % Y ' - Witness my hand and notarial seal, this U.th_.. day of November 1998
Seat Notary
4,. .d+'�• My commission expires 7- 6'-(20n
# e6t,,. R CO J.4tr

•
�.•
FROM THE NEW HANOVER COUNTY PLANNING DEPARTMENT
TO: 0 AgaiWojaraoheitegagaztzmTgoes REcE 1-- 1
Bell South / Renegar R )M: Avery, P.
Burgess, S.
I 4- Emergency Services / Sum
I NCDOT / Cooke DATE: I I ( 7 9 6
NC Coastal Management / Gregson / Bruner
1::=J- Corps of Engineers / Flint eyZ'
l E911 / Hewlett , -, ��: {� '
I Engineering / Rahhal / Craig / Thompson
Fire Marshall / Rivenbark
E`�' Enviror;t; ent:73o Manac?`melli 1 �=y; ;i,_. I y4 1*No-= -
��1' vnli in�pnv Fire ,,,.t. ......i r�.r
vlun eer Fire Departmen 5-64 azc
-I' CP&L / Cobb cys //
Preliminary Plan E Revised Plan
E Final Plat E] Minor Plat
MESSAGE.
Project Name: VVI57,,Z4LL- 0 icy E 44 4?
(Tre.A5-k_ ,40 ,2- _ MZt%tx C off)
flL-EA v, cry i? s
p) / Advise , Gs
c-r)( T S 70A/tD .�
{ Special Instructions:
THE PLANNING DEPARTMENT IS LOCATED AT 414 CHESTNUT STREET, SUITE 304,WIt MINGTON, NC 28401

N
•
•
. FROM TiE NEW HANDVER.COUNTY PLANNING DEPARTMENT
TO: n Ines
I Bell South / Renegar FROM: very, P.
0 SCS / Stowell 0 Burgess, S.
0 Emergency Services / Summers
0 N C DOT / Cooke /1//4 Se °,f9'' - DATE: l 2 1:2-7?
0 NC Coastal Management / Gregso D
0 Corps. of Engineers / Flint
0 County Schools / Wayne OE' 2 8 1998
CI--- nm a ea II :ti' Y \
4•414:10) *
E911 / Hewlett
an_ •• & ;,,; , . _: � �
0 Engineering / ahha Craig / Thompson .r °? '11. zr;T
0 Fire Marshall `-"`s
/ Rivenbark
0 Environmental Management / Lewis
g '!t)t3 =
E.l Volunteer Fire Department ' � (5 &)
0 CP&L / Cobb 5'f
Preliminary Plan -6.VrS f,oN = Revised Pl
an
Ian
0 Final Plat El Minor Plat
MESSAGE:
Project Name: lA76cI 4/ Orr( Ce 2/�
cfm O fJ
• cfd 7AS z On/d
,0� C 1 < <qq (3 dy 0 mac .
Special Instructions:
LIMERMIIMMEMPININIMMIfianalift VIEW
THE PLANNING DEPARTMENT IS LOCATED AT 414 CHESTNUT STREET, SUITE 334,WILMINGTON, NC 28401

Re: 12/15/98 letter from John Tunstall with Andrew & Kuske
As per the fourth policy directive on coastal stormwater rules
(9/10/90) from Tedder:
'a project greater than 1/2 mile from but draining to SA waters having
a chloride concentration of 500 mg/I or greater should be allowed to
provide wet detention ponds and allowed the 30 % low density option.
The 500 mg/I determination should be made during generally dry
conditions during which there has been no measurable rainfall for
three previous days.'
Mr. Tunstall's letter indicates they performed sampling which
demonstrates the receiving waters are not SA waters. In keeping with
the policy directive, he needs to provide supporting documentation
that the sampling was performed during generally dry conditions during
which there has been no measurable rainfall for three previous days.
The discrepancy between CAMA's ORW determination to the bridge at
Landfall and DWQ's ORW classification of Howe Creek from the source is
not an issue, as we previously discussed. The DWQ classification is
based upon the USGS topo map and is from the source, so they are
subject to ORW requirements regardless of the SA issue. If they want
to file for a reclassification to non-ORW they can try : )
Mailto:Jeanette [e-mail]
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Stormwater and General Permits Unit
[phone], ext. 537
wes-rrALA vMCC', PARK
•
Alida Lewis -- 1 -- Wed, 16 Dec 1998 16:55:00

John R. Andrew, P.E.
Andrew & Kuske J.A. Kuske, P.E.
CONSULTING ENGINEERS, INC. J. Phillip Norris, P.E.
902 Market St. • Wilmington, North Carolina 28401-4733 • Telephone [phone] • Fax [phone]
December 15, 1998
Ms. Linda Lewis
NCDENR/Div. of Environmental Mgmt.
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
RE: Westfall Office Park
A & K Project No. 98244
Dear Ms. Lewis:
Pursuant to our conversation regarding the Westfall Office Park, please find the
following information and laboratory test data for this project. The provided information
and test data defines our interpretation on the stormwater regulations which would
pertain to this development.
As communicated previously, the proposed Westfall Office Park is located on the East
side of Military Cutoff Road and is bounded by Lucia Point Subdivision on the North, Old
McCumber Station Road on the East and the The Forum on the South. The subject
property is zoned Office and Institutional O&I, which promotes high . density
development. Examining the U.S.G.S. quad. Map, reveals that the stream traversing
the project is the upper tributaries of Howe Creek. The "NCDENR-Classifications and
Water Quality Standards assigned to waters of the Cape Fear River Basin," states that
Howe Creek is SA-ORW from the source to the Intracoastal Waterway. Also, in review
of the Water Classification Quad. Maps in your office, the Northwest stream traversing
the property to the West of Military Cutoff Road is labeled to be outstanding Resource
Waters (ORW). In conversations with Jim Gregson of CAMA, CAMA's ORW starts
below Landfall Bridge and continues to the ICW. This difference in classification is
currently being reviewed by your office.
In accordance with the published NCDENR Administrative Code Sections: 15A NCAC
2B.0100., 15A NCAC 2B.0200., and 15A NCAC 2H.1000. rules and regulations; we
interpret that the following regulations govern this tract of land and project. By
classification, SA waters fall under the Tidal Salt Water classification suitable for
commercial shell fishing and all other Tidal Salt Water uses. By definition T15A:
2B.0202.(55) Tidal Salt Waters generally have a chloride ion content of 500 parts per
million (PPM) (500 mg/I) or greater. Please find 3 laboratory test results which show the
streams waters to be much less than 500 PPM (mg/I). Sample #3 which was taken at
Landfall Bridge is % mile away from the project. Therefore, we conclude that at this
location and above the stream is not of the SA water classification. In addition, due to
the fact that the waters of the stream are defined freshwater <500 ppm (mg/I) in
accordance with T15A; 2B.0202(29), we also conclude that the stream labeled ORW is

Ms. Linda Lewis
December 15, 1998
Page 2
a freshwater ORW. Freshwater ORW permits high density development within the 575
ft. setback. The Westfall Office Park is to be planned and designed with regional
detention ponds which will be located in areas minimizing impacts to the stream.
If our interpretation of rules and regulations is not correct, then please notify us
immediately.
Sincerely,
ANDREW& KUSKE
CONSULTING ENGINEERS, INC.
rive ,6, 4144410e
Jo n S. Tunstall, P. E.
JST/tsm
Attachments
cc: Mr. Raiford Trask
Mr. Bradley Bennett
982411-11

1 3000) a060 5000 6000 7000 FEET ��
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DATUM IS MEAN SEA LEVEL I
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THE MEAN RANGE OF TIDE IS APPROXIMATELY 3.8 FEET U ,
MAP ACCURACY STANDARDS } 1+���- �d3�
THIS MAP COMPLIES WITH NATIONAL R JR.. AND..RDS
FOR SALE BY U.S. GEOLOGICAL SURVEY,WASHINGTON, D.C. 20242 �v� -
A FOLDER DESCRIBING TOPOGRAPHIC MAPS AND SYMBOLS IS AVAILABLE ON REQUEST `'�+'' - •s' \- `-
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From: Law & Company of Wilmington, Inc .
1711 Castle Street / PO Box 629
Wilmington, NC 28402
TEL: [phone] NC 37704 / WW 16
FAX: [phone] SC 99049
December 9, 1998 RECEIVED
To: JOHN TUNSTALL, PE DEC 15 1998
ANDREW & KUSKE ENG.
902 MARKET STREET ANDREW AND KUSKE
WILMINGTON, NC 28401
910-343-9653
The following analytical results have been obtained for the
indicated sample which was submitted to this laboratory:
Sample I.D. WI06701 Location code : WALKIN
Location Description: SAMPLE #1 CULVERT
Sample collector: J. TUNSTALL
Sample collection date : 12/08/98 Time : 13 : 00
Lab submittal date : 12/08/98 Time : 16 : 30
Parameter Result Units MDL
CHLORIDE 23 mg/L 5
If there are any questions regarding this data, please call .
ZPAA-1-")
12ichardSpivey
President

From: Law & Company of Wilmington, Inc .
1711 Castle Street / PO Box 629
Wilmington, NC 28402
TEL: [phone] NC 37704 / WW 16
FAX: [phone] SC 99049
December 9, 1998
To: JOHN TUNSTALL, PE
ANDREW & KUSKE ENG.
902 MARKET STREET
WILMINGTON, NC 28401
The following analytical results have been obtained for the
indicated sample which was submitted to this laboratory:
Sample I.D. WI06703 Location code : WALKIN
Location Description: SAMPLE #3 LANDFALL BRIDGE
Sample collector: J. TUNSTALL
Sample collection date : 12/08/98 Time : 14 : 15
Lab submittal date : 12/08/98 Time : 16 :45
Parameter Result Units MDL
CHLORIDE 31 mg/L 5
If there are any questions regarding this data, please call .
r.
4R Chard' Sp ve
President -

From: Law & Company of Wilmington, Inc .
1711 Castle Street / PO Box 629
Wilmington, NC 28402
TEL: [phone] NC 37704 / WW 16
FAX: [phone] SC 99049
December 9, 1998
To : JOHN TUNSTALL, PE
ANDREW & KUSKE ENG.
902 MARKET STREET
WILMINGTON, NC 28401
The following analytical results have been obtained for the
indicated sample which was submitted to this laboratory:
Sample I.D. WI06702 Location code : WALKIN
Location Description: SAMPLE #2 1/2 MI . 575 SETBACK
Sample collector: J. TUNSTALL
Sample collection date : 12/08/98 Time : 13 : 15
Lab submittal date : 12/08/98 Time : 16 :45
Parameter Result Units MDL
CHLORIDE 19 mg/L 5
If there are any questions regarding this data, please call .
kichard 'Spivey \;
President

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JAN 08 '99 14:23 060 P08
• - -Rcx STATION: *NW SUVI M.lp4 TON, NORIVcAKULUNA
(1-79) NATIONAL.OCEANIC AND ATMOSPHERIC ADMINISTRATION MoNrrlt NOVEMBER YEAR: 1998
(-"1 A_S TE./Z. NATIONAL WEATHER SERVICE LATrFUDR: 34°16'N LONOmmE: 77°54'W
PRELIMINARY LOCAL CLIMATOLOGICAL DATA STATION ELEVATION:38 I7
*DATA AXE stUBl6CT TO CORRECTION BY THE NATIONAL CLIMATIC DATA CENTER STANDARD TIME: EASTERN
TEMPERATURE°P DEGREE PRECIPITATION(in) WIND(mph) SUNSHINE WEATHER PEAK WIND
PAS MIN (min) _oak)
Day Max Min Mean DI a Hett Cool otal Snow i Ova Dir a Total °X)Poss r
003 14 110 I
3 81 59 70 +10 0 5 0.01 0.0 0 8,1 22 240 310 48 1 25 240
4 60 49 55 -5 10 0 T 0.0 0 9.8 16 20 0 0 1,8 20 20
5 55 46 51 -9 14 0 0.01 0.0 0 14.6 21 20 0 0 25 20
6 ' 58 ' 36 d7 '-13 18 0 0.00 0.0 0 8.2 20 350 638 100 - 25 350
7 57 33 45 -14 20 0 0.00 0.0 0 3.8 13 320 636 100 1 15 320
8 61 31 46 -13 19 0 T 0.0 0 1.5 9 120 489 77 1 11 90
9 68 52 60 +1 5 0 0,02 0.0 0 1.5 9 100 41 6 1,2 10 180
10 74 49 62 +3 3 0 0.07 0.0 0 _ 6,8 17 180 314 50 _ 1,2 22 180
11 83 59 71 +13 0 6 0.03 0.0 0 11.9 29 220 287 46 1,2 34 220
12 68 46 57 -1 8 0 0.00 0.0 0 6.7 14 20 562 83 1,2 18 30
13 59 42 51 -7 14 0 0.00 0.0 0 4.6 11 20 38 6 14 10
14 66 46 56 -2 9 0 T 0.0 0 2.3 11 250 157 25 14 250
15 68 50 59 +2 6 0 1, 0.40 0.0 0 - 3.9 14 310 250 40 1,2,8 15 310
1f, 67 47 W57 V0 8 0 0.03 0.0 0 1,6 7 110 149 24 1,2,8 9 110
17 79 55 67 +10 0 2 0,10 0.0 0 7.8 15 10 483 78 1,2 20 10
18 68 48 58 +1 7 0 0.00 0.0 0 8.6 16 40 555 90 1 21 20
19 61 50 56 -1 9 0 0,17 0,0 0 7.1 17 280 0 0 1 20 280
20 ,, 70 ,_60 65 +9 „ 0 0 0.00 0,0 0 , 5.8 15 250 �„ 69_�,_ 11 1,2 16 230 ,
II.21 65 44 55 -1 10 0 0.00 0.0 0 7.6 21 320 485 79 1 24 360
22 65 38 52 -3 13 0 0.00 0,0 0 6.0 14 30 497 81 15 30
23 75 ;44 60 +5 5 0 0,00 0,0 0 4,0 10 190 455 74 13 180
24 77 51 64 +10 1 0 0.08 0.0 0 6,8 16 80 384 63 1 21 80
25 68 43 56 +2 9 0 0.00 0.0 0 6.9 16 80 502 82 1,8 20 80
26 70 45 58 +4 7 0 ,0.04 0.0 0 9,9 26 320 529 87 3 31 320
27 73 41 57 +4 8 0 0,00 0.0 0 5.5 22 310 577 88 1,8 25 310
28 74 39 57 +4 8 0 ,0.00 0.0 0 1.2 9 170 605 100 1 11 180
29 77 40 59 +6 6 0 0.00 0.0 0 2.4 11 130 604 100 1,2 , 15 230
30 80 48 64 +11 1 ,0 0.01 _ 0.0 0 4.8 16 180 , 406 67 1,8 20 170
Sum 2074 1389'1//////N/IIl11 225 -13 0.97 0.0 ON 176.1 /Ill!1N1N00 11010 llllll//// 'Ii/IINll1INNIIIl�JIIIII/h1l t///llll
Avg 69.1 46.3 111111N1/1111N11/lllll.11llll/n'llll/llllll'llll/llllll 1/11111/4 5.9 11111/'//1Il/ll/lll,Ill/lll/11N11111//f/I N/llllll///11111///N/!/l/I/GJI////l111r
‘,11114)111111011111111n41/1/11I,)N11111`h111!/;Al/llll 10111/1 71111111 Vi/ll/ll/7 29 220 .
#MEANS LAST OF MULTIPLE OCCURRENCES Miscellaneous: Fast Direction Possible Percent Past Direction
TEMPERATURE DATA PRECIPITATION DATA SYMBOLS USED IN
AVERAGE MONTHLY: 57.7° T(YfAL FOR THE MONTH: 0-97 IN WEATHER OCCURENCES
OIE1'ARTURR FROM NORMAL: +0.7° DEPARTURE FROM NORMAL: -2.14 1N I=FOG
HIGHEST: 83'ON 11 GREATEST IN 2.4 HOURS: 0,40 Ili ON 15 2=FOG REDUCING
LOWEST: 31° ON 8 SNOWFALL ICE PELLETS VISIBILITY TO 1/4 MILE
NUMBER OF DAYS WITH- TOTAL FOR THE MONTH: 0.0 OR LESS
MAX 32°OR BELOW: 0 GREATEST IN 24 HOURS: 0.0 ON -- 3=THUNDER
MAX 90' OR ABOVE: 0 GREATEST DEPTH ON GROUND: 0 4=ICE PELLETS
MIN 32°OR BELOW: 1 5=HAIL
MIN 0°OR BELOW: 0 ., PRESSURE DATA 6=GLAZE OR RIME
HEATING DEGREE DAYS . HIGHEST SEA-LEVEL.,: 30-44 pi ON 22 7=BLOWINO DUST OR
TOTAL THIS MONTH: 225 - LOWEST SEA-LEVEL: 29.75 IN ON 4 BLOWING SAND
DEPARTURE FROM NORMAL; -34 REDUCING VISIBILITY
SEASONAL TOTAL: 284 WEATHER TO 1/4 MILE OR LESS
DEPARTURE FROM NORMAL: -77 NUMBER OF DAYS-
WITH OR HAZE
COOLING DEGREE DAYS WFIH 0.01 IN OR MORE 1'R1 C IP 12 9=BLOWINCI SNOW
TOTAL THIS MONTH:. l 3 WITH 0.10 IN OR MORE PRECIP: 2 X=TORNADO
DEPARTURE PROM NORMAL: -6 WITH 0-50 IN OR MORE PRECIP: 0
SEASONAL TOTAL: 2294 WITH 1.00 IN OR MORE PRECIF: 0
DEPARTURE FROM NORMAL:+376 ...
IREMARKS;.gECORD 11ZGIiS ON i1� (OLD RZCO 82/1985)&30'1"(79/1970)

JAN 08 '99 14:24 060 P09
• i 1 - $ I.:, 1 '-1' I ! 1' ••I i•'M STATION: 0' I { v 1 >1, \f f .p 1'
(i-79 NATIONAL OCEANIC D ATMOSPHERIC ADMINISTRATION Mwrw DECEMBER TEAR: 1998
/„1/1 5.i p/4 MI NATIONAL WEATHER SERVICE txmlio 34°16'N LONOrruoE: 77°54'W
PRELIMINARY LOCAL CLIMATOLOGICAL DATA STATION ELEVATION 38 FT
'DATA AAZ 5t1B1ECTTO CORRECTION AYTHS NATIONAL CLIMATIC DATA CENTER STANDARD TIME: EASTERN
TEMPERATURE°F DEGREE PRECIPITATION(in) WIND(mute) I SUNSHINE WEATHER . PEAK WIND
P a ST •MIN I (ruled LL„
PMIr I! an M" Ii1?Me .C.ol E Total Snow Del*1 „Aprr, 1115131 Dir I Total %Foss *gameness I Spd Dir
1 78 0 64 +12 0 0.0 0 6,3 16 I .. 18 310
2 75 46 61 +9 4 0 0.00 0,0 0 1.9 8 130 493 . 82 . 9 130
3 79 47 63 +11 2 0 0.00 0,0 0 5.3 16 260 475 79 20 270
4 79 50 65 +14 0 . 0 0,00 0.0 0 4.3. 16 • 260 502 84 18 270
5 80 48 64 +13 .1 0 . . 0.00 0.0 0 5,0 13 200 535 89 15 200
6 81 61 71 1-20 0 • 6 0.00 0.0 0 7.7 .18 250 479 80 . ' 22 250
7 82 62 72 +21 0 7 .0.00 0,0 0 9.0 18 240 499 84 24 240
8 82 64 73. +23 0 8 . .0.00 0.0 0 9.6 22 . 200 487 82 26 200
9 72 44 58 +8 7 0 0.03 0.0 0 . 13.4 29 360 .. 190 32 37 360
10 57 40 49 -1 16 0 T 0.0 0 7.8 16 40_ 253 43 18 40
11 59 41 50 +1 . 15 0 0.00 0.0 0 8,4 18 30 98 16 • 22 20
12 61 40 51 +2 14 0 0.00 0.0 0 9.2 1$ 60 69• 12 23 50
13 69 49 59 +10 6 0 0,52 0.0 0 7.5 24 180 2 0 33 200
14 57 39 48 -1 17 0 0.00 0.0 0 13.7 24 10 .: 212 36 30 10
15 62 38 50 +2 15 0 0.62 0.0 0 15.0 25 30 177 30 1 32 20
16 64 44 54 +6 ' 1.1 0 0.16 0.0 0 13.2 24 310 201 34 12 34 330
17 60 39 50 +2 15 0 0.00 0.0 0 10.5 26 310 412 70 33 310
18 53 31 42 -6 23 0 0.00 0.0 0 4.2 13 330 397 67 16 350
19 69 36 53 +5 I2 0 0.04 0.0 0 4.5 16 110 37 6 12 21 110
20 69 - 48 59 +12 6 0 0.00 0.0 0 2.9 9 320 186 31 12 10 320
21 70 52 61 +14 4 0 0.00 0.0 0 4.6 14 120 204 34 128 16 120
22 80 50 65 +18 0 0 0.00 0.0 0 12.0 23 240 214 36 29 240
23 50 35 43 -4 22 0 0.00 0.0 0 11.8 18 30 0 0 1 23 30
24 39 35 37 -10 28 0 0.24 0.0 0 8.5 16 20 0 0 20 20
25 37 33 35 .12 30 Q 0.37, 0.0 0 12.4, 18 10 0 0 1 . 23 20
26 37 30 34 -12 31 0 1.35 0.0 0 .8.8 17 320 0 • 0 1 22 10
27 56 26 41 -5 24 0 0.00 0.0 0 3.5 . 11 60 372 63 18 14 60
28 56 45 51 +5 14 0 0.63 0.0 0 5.9 13 320 28 5 . 1 15 320
29 51 47 49 +3 16 0 , 0.00 0.0 0 6.9 15 280 0 0 12 18 290
30 51 26 39 -7 26 0 • 0.00 0.0 0 11.5 29 280 160 27 1 36 310
31 156 26 41 -5 I 24 0 10,00 0.0 0 3,8 15 200 278 47 I I 17 210
Sum 11971 1322/11/Ill Ills/ 1384 21 I 3.96 0.0 1l/111/I 249.1 ////I/ I/llll/l/I 17489 //////////1///////Ills///////; NM/ 11/111111
Avg 163.6 42.6 ON11111; MIN/lulls!ll/111111/////11111/1 111111/1 8.0 ///1/1111N1/IlIll ; 1111//Il/1 1l/lulls j Ill!///11111111111!I/111111 Il1Ill/11
r , ,r I I' . - I . - . it / W I . 19
4 MEANS LAST OF MULTIPLE OCCURRENCES Miscellaneous: Fact Direction Pos1ible Pervert . Fast Direction
TEMPERATURE DATA PRECIPITATION DATA SYMBOLS USED IN
AVERAGE MONTHLY: 53,1° •
TOTAL FOR THE MONTH: 3-96 IN WEATHER OCCURENCES
DEPARTURE FROM NORMAL +4.6° DEPARTURE FROM NORMAL: -+0,3 3 rN 1=FOG
HIGHEST: 82°ON 7,8 GREATEST IN 24 HOURS: 1.46 IN ON 25-26 2=FOG REDUCING
LOWEST: 26° ON 27,30,31 ' SNOWFALL, ICE PELLETS VISIBILITY TO 1/4 MILE
NUMBER OF DAYS WITH- TOTAL FOR THE MONTH: 0.0 OR LESS
MAX 32°OR BELOW: 0 • GREATEST 1N 24 HOURS: 0.0 ON - 3=THUNDER
MAX 90°OR ABOVE: 0 GREATEST DEPTH ON GROUND: 0 4=ICE PELLETS
MIN 32°OR BELOW: 5 S=HATL
MIN 0°OR BELOW: 0 .. PRESSURE DATA 6GLAZE OR RIME
BBATING DEGREE DAYS . HIGHEST SEA-LEVEL: 30.49 DI ON 23 7a8LOWINO DUST OR
TOTAL THIS MONTH: 384 - LOWEST SEA-LEVEL: 29.63 IN ON 30 BLOWING SAND
DEPARTURE FROM NORMAL: -135, REDUCING VISIBILITY
SEASONAL TOTAL: 668 'WEATHER • TO 1/4 MILE OR LESS
DEPARTURE FROM NORMAL: -212 NUMBER OF DAYS- 8=SMOKE OR HAZE '
COOLING DEGREE D4}'S WITH 0.01 IN OR MORE PRECIP: 9 9=BLOWING SNOW
TOTAL THIS MONTH: 21 WITH 0.10 IN OR MORE PRECIP: 7 X.-TORNADO
DEPARTURE FROM NORMAL: +13 WITH 0.50 IN OR MORE PRECIP: 4 REMARKS:ALL-TIME DEC.RECORD HIG
SEASONAL TOTAL: 2315 WITH 1.00 IN OR MORE PRECIP: ION 7TH&S TH OLD RECORD 81/MOST -
DEPARTURE FROM NORMAL:+3891RECE24'LY 12/30/1984)-RECORD HIGHS ON 3RD(77/1964),5T 1-1177/1982),6TH(77/1975),
1(79/195!L81 M(80/1978,)&22ND(79/.1990h RECORD WARM LOW ON 8 TH(62/I919).11ED RECORD W HRN4 LOW UN 7'1'1i(1919)