SW7080214_HISTORICAL FILE_20080221

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

WATER
Michael F. Easley, Governor
rol
Company, LLC
Hayes, Jr.
Land Company
Dear Mr. Hayes:
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
February 21, 2008
Subject: Stormwater Review SW7080214
Burton Farm Village Pool Clubhouse
Pamlico County
Coleen H. Sullins, Director
Division of Water Quality
The Washington Regional Office of the Division of Water Quality received a Coastal Stormwater permit
application and plans for the subject project on February 14, 2008. A preliminary review of the project indicates
that before a State Stormwater permit can be issued the following additional information is needed.
/I. The Calculations show the required volume to be 7,276 cf and provided volume as 14,554, while the Wet
Detention Basin Supplement shows provided volume as 12,263 cf. Please revise or explain;
2. Revise the Wet Detention Basin Supplement to show the diameter of orifice (page 2 of 2 — under additional
information);
V 3. The calculations show that pipe P-4 have a diameter of 24", while the plans show 18", thence the
calculations show that pipes P-5 and P-12 have a diameter of 30" each, while the plans show 24". Please
/ revise;
V 4. Provide a level spreader (the scour hole) where the outlet pipe discharges into the wetlands. Provide signed
and notarized Operational & Maintenance agreement for scour hole (use the level spreader Operation &
Maintenance agreement and edit it out to fit the scour hole requirements). The calculations and detail for
scour hole can be shown on plans;
On the Outlet Pipe Detail (sheet 8 of 8) of the plans, move orifice up to match the Permanent Pool
elevation;
6. Provide two sets of signed and sealed corrected sheets and documents.
The above requested information must be received in this office prior to February 28, 2008 or your
application will be returned as incomplete. The return of this project will necessitate resubmittal of all required
items including the application fee. If you need additional time to submit the required information, please mail
or fax your request for time extension to this office at the Letterhead address.
You should also be aware that the Stormwater Rules require that the permit be issued prior to any
development activity. Construction without a permit is a violation of 15A NCAC 2H.1000 and North Carolina
General Statute 143-215.1 and may result in civil penalties of up to $10,000 per day.
O
N�n` Carolina
vWura!!y
North Carolina Division of Water Quality Washington Regional Office Phone [phone] FAX [phone]
Internet: h2o.encstate.nc.us 943 Washington Square Mall, Washington, NC 27889
An Equal OpportunitylA(firma&ve Acton Employer - 50% Recycled110% Post Consumer Paper
Customer Service
1-877-623-6748

Please reference the Stormwater Project Number above on all correspondence. If you have questions, please
feel free to contact me at [phone].
Sincerely,
r
Samir Dumpor, PE
Environmental Engineer
Washington Regional Office
cc: Bobby Billingsley, PE (Thomas Engineering, PA, PO Box 1309, 309 Metcalf Street, New Bern, NC 28563)
✓Washington Regional Office

Thomas Engineering, P.A.
Civil Engineering -Land Development- Project Management
FEDEX TRK#: 7920 0994 0234
To: NCDENR
Division of Water Quality
943 Washington Square Mall
Washington, NC 27889
Attn: Samir Dumpor
Re: State Stormwater Management Revisions
Burton Farm Village Pool Clubhouse
Pamlico County
2004-009
Dear Samir,
rrRbruary:22Q008�
Lr v - --• .y Ira 11)
FEB `c f 04,008
Please find enclosed your comment letter dated February 21, 2008 and two (2) copies of
documents addressing these comments. 1 have the following comments regarding your
comments:
1) The wet detention supplement sheet has been updated to reflect a provided volume of
14,554 cft. The wet detention supplement had not been updated from a previous pond
design calculation.
2) The wet detention supplement sheet now shows an orifice of 1 ".
3) The pipe table in the plans has been changed to reflect the calculations. These were
typos.
4) A scour hole and level spreader has been added to the outlet of the outlet pipe. It has
been sized based on the BMP manual (smallest size applicable). Operation and
maintenance forms are enclosed and struck through where not applicable.
5) The detail now shows the pipe skewed to an outlet elevation of 29.0 (permanent pool).
6) Two sets of all are enclosed.
Please review and let me know if you have any questions or concerns.
Thank yy�ou,
Aevdi
Bobby Billingsley, PE
[e-mail]
Enclosures
309 Metcalf Street-P.0.. Box /309•New Bern, NC 28563
Phone: [phone]•Fax: [phone] ebsite: www.ThomasEngineeringPA.com

Burton Farm Village Pool and Clubhouse
Facilities at Mill Creek
February 1. 2008
Pamlico County
2004-009
ENGINEERING REPORT
QOB
STORMWATER MANAGEMENT
EROSION AND SEDIMENTATION CONTROL
AT
BURTON FARM VILLAGE POOL AND CLUBHOUSE FACILITIES
AT MILL CREEK
PAMLICO COUNTY
2004-009
OWNER: BURTON FARM DEVELOPMENT CO.
P. O. BOX 1908
ROCKY MOUNT, NORTH CAROLINA �1802
ENGINEER: THOMAS ENGINEERING, P.A.
309 METCALF STREET
P.O. BOX 1309
°,,•:NF;,�y NEW BERN, N.C. 28563-1309
pa.�Ra�',y'e [phone]-OFFICE
of SEAL :[phone]-FACSIMILE
°JOHNTHOMAS THOMASENGINEERINGPA.
a

NARRATIVE
PROJECT DESCRIPTION
This project consists of clearing, grubbing, grading, and site improvements for the
proposed community facilities. These facilities include 6 club house, tennis courts,
swimming pools, basketball courts, sidewalks, gazebos, parking and driveways, etc.
The project site is located in Pamlico County just south of Arapahoe and is bordered by
previous development. Approximately 4.0 acres will be disturbed during development.
SITE DESCRIPTION
This site varies between elevation 36.0 ft and 29.0 ft NGVD 88. The site has been
cleared for improvements, clearing and grubbing only.
SOILS
The Pamlico County Soil Survey indicates two (2) soil types on this tract, which are
included in the Exhibits: Baymeade sand, which is well drained and Leon sand, which is
poorly drained. The majority of the upland portion of the tract is Baymeade sand.
STORMWATER
This subdivision is being developed as a high density project with an overall percent of
impervious cover of 41.4%. Stormwater will be collected by underground storm sewers
and grass -lined swales and transported to a wet detention pond before being
discharged into an existing wetland.

STORMWATER POND COMPUTATIONS
A. Site Data
1. Built Upon Area: Tennis: 14,000 SF
Basketball: 4,800 SF
Building: 3,300 SF
Driveways and Parking: 18,170 SF
Misc. sidewalks, pool exterior, gazebos, etc: 33,500 SF
Totals: 73.770
2. Total Project Area: 221,629 SF (Wetlands = 43,285 sf <= 25% of total)
Drainage Area: 178,344 SF (Wetlands not included
3. Percent Impervious Area: (73,770 SF/178,344 SF) x100 = 41.4%
B. Determination of Wet Detention Pond Surface Area
1. Reference Attachment "A" 90% TSS removal without vegetative filter.
2. Proposed Pond Depth: 4.0 ft.
3. Impervious Percent: 41.4 %.
4. Drainage Area: 178,344 SF
5. Surface Area/Drainage Area: 3.6
Interpolated from attachment "A" for 90% TSS Removal
Where Impervious% = 41.4%, Permanent Pool = 4.0 ft.
6. Pond Surface Area:
a) Required 178,344 SF x 0.036 = 6,420 SF
b) Provided design pond surface area (SA) = 7,150 SF @ PP Elev.

C. Determination of required storage following a one inch rainfall event:
Where C for Impervious 0.9 average, green areas = 0.2.
1. Impervious (73,770 SF) (0.9) (1") (1'/12") = 5,533 CFT
2. Green: (104,574 SF) (0.2) (1") (1712") = 1743 CFT
3. Required Storage Volume = 7,276 CFT
4. Storage Depth (1" rainfall)
H = Volume/SA (estimated)
H = 7,276 CFT/ 7,150 SF
H = 1.01'
Try H=1.5
((Temp Pool SF @ Elev. 31.5 + Perm Pool SF @ Elev. 30)/2) x 1.5
{(9,200 + 7,150) / 2) x1.5 = 12,263 CFT > 7,276 CFT 4 OK
5. Provided Storage Volume 4 12,263 CFT
D. Draw down determination (based on 1" rainfall)
1. Q (2 dys) = 5,889 CFT / (2 dys)(24 hrs/day)(60 min/hr)(60 sec/min) = 0.034 cfs
2. Q (5dys) = 5,889 CFT / (5 dys)(24 hrs/day)(60 min/hr)(60 sec/min) = 0.014 cfs
3. Orifice Size
a. Orifice Formula
Area = [(Q/Cd)/(sgrt(2gh)] x 144 spin/sf, where h=H/2, Cd = 0.6, g=32.174
ft/seCA2
b. Area for Q (2 dys)
Area = [((0.034) / 0.6) / sgrt((2)(32.174)(0.5)] x 144 = 1.44 inA2
Pipe Diameter = 2 x sgrt(A/Pi) = 2 x sgrt (1.44/3.14) = 1.35 inches
c. Area for Q (5 dys)
Area = [((0.014) / 0.6) / sgrt((2)(32.174)(0.5)] x 144 = 0.59 inA2
Pipe Diameter = 2 x sgrt(A/Pi) = 2 x sgrt (0.59/3.14) = 0.87 inches
d. Selected Orifice Size 4 Use 1.00 in. orifice

E. Runoff calculation for riser sizing and overflow:
1) Rational Method Q=CIA
Where: Q = Peak rate of runoff (cfs)
C = Runoff coefficient: Buildings + Pavement = 0.9
Green = 0.2
= Average intensity of rainfall (in/hr, 10 yr design storm)
A = Drainage area (acres).
2. Determination of Peak Flow (Q)
C = (73,770 SF)(0.9) + (104,574 SF)(0.2) / 178,344 SF
C = 0.49
H (height difference) = 5 ft
L (length of travel) = 700 ft
Tc (time of concentration) = 5 min
110 = 7.5 in/hr. from IDF Curves
Q = CIA = (0.49)(7.5 in/hr)(4.09) = 15.0 cfs
F. Weir Length Determination
1. Inflow
Q = 15.0 cfs (from above)
Q = 3.33(L-0.2H) H1.5 (Weir overflow formula for riser determination)
H = 4 inches
Solve for L. L = ((15.0 cfs)/((3.33)(4"/12)15))+(0.2)(4"/12)
L = 27.1 ft 4 SAY 30 ft

Thomas Engineering, P.A.
Civil Engineering -Land Development -Project Management
HAND DELIVERED
To: NCDENR
Division of Water Quality
943 Washington Square Mall
Washington, NC 27889
Attn: Lyn Hardison
Re: State Stormwater Management Permit Application
Burton Farm Village Pool Clubhouse
Pamlico County
2004-009
Dear Lyn,
February 13, 2008
EXPRESS
FEB 142008
TIMPIAZI
Please find enclosed the State Stormwater Management Permit Application for site
improvements at the proposed Burton Farm Village Pool Clubhouse in Pamlico County.
Enclosed items include an (1) original and one (1) copy of the Stormwater Management
Permit Application Form, two (2) wet detention pond supplements, two (2) copies each
of the stormwater management report, specifications, and plans, and one (1) check for
$4,000.00 (Check No.7922) for the express permitted application processing fee.
I believe all comments from the initial review meeting have been addressed, either in the
plans, report, or forms. Please review and let me know if you have any questions,
concerns, or need additional information.
Thank you,
Bobby Billingsley, PE
[e-mail]
Enclosures
309 Metcalf Street-P. 0. Box 1309•New Bern, NC 28563
Phone: [phone]•Fax: [phone]•Website: www.ThomasEngineeringPA.com

For DENR Use ONLY
North Carolina Department of Environment and
Natural Resources
Request for Express Permit Review
NCDENR
Reviewer:.c r
Submit j--t 4 0
Time:
Confirm L� It
FILL-IN all the information below and CHECK the Permit(s) you are requesting for express review. FAX or Email the completed form to Express
Coordinator along with a completed DETAILED narrative site plan (PDF file) and vicinity map (same items expected in the application package
of the project location. Include this form in the application package.
• Asheville Region -Alison Davidson 828.296.4698;alison.davidson(dncmail.net
• Fayetteville or Raleigh Region -David Lee 919.791.4203; david.lee(alncmail.net
• Mooresville 8 -Patrick Grogan 704-663.3772 or patrick.grogan(amcmail.net
• Washington Region -Lyn Hardison 252-946-9215 or Ivn.hardison(ibmcmail.net
EXPRESS
• Wilmington Region -Janet Russell 910-350-2004 or ianet.russell(@.ncmail.net
NOTE: Project application received after 12 noon will be stamped in the following work day.
FEB 14 2008
Project Name: BURTON FARM VILLAGE POOL CLUBHOUSE County: PAMLICO
NC DENR
Applicant: CHARLES J. HAYES, JR. Company: BURTON FARM VILLAGE POOL CLUBHOUSE
Address: P. 0. BOX 229 City: KITTY HAWK, State: NC Zip: 27949
Phone:[phone] Fax:[phone] Email: insflyeranearthlink.net
Project is Drains into NEUSE waters Project Located in NEUSE River Basin
Engineer/Consultant: John G. Thomas, PE Company: Thomas Engineering, PA
Address: P. 0. BOX 1309 City: NEW BERN, State: NC Zip: 28563
Phone: [phone] Fax::[phone] Email:iohnthomas(o),thomasengineeringpa.com
(Check all that apply)
❑ Scoping Meeting ONLY ❑ DWQ, ❑ DCM, ❑ DLR, ❑ OTHER: _
❑ Stream Origin Determination: # of stream calls — Please attach TOPO map marking the areas in questions
® State Stormwater ❑ General ❑ SFR, ❑Bkhd & Bt Rmp, ❑ Clear & Grub, ❑ Utility
❑ Low Density ❑ Low Density -Curb & Gutter _ # Curb Outlet Swales ElOff-site(SW _(Provide permit #)]
® High Density -Detention Pond 1 # Treatment Systems [:]High Density -Infiltration _ #Treatment Systems
❑ High Density -Bio-Retention _ # Treatment Systems ❑ High Density —Constructive Wetlands _ # Treatment Systems
❑ High Density -Other _ # Treatment Systems ❑ MODIFICATION SW _ (Provide permit #)
❑ Coastal Management ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information
❑ Upland Development ❑ Manna Development ❑ Urban Waterfront
❑ Land Quality ❑ Erosion and Sedimentation Control Plan with _ acres to be disturbed.(CK #_ (for DENR use))
w'E7LAND5 QUESTIONS MUSTBE ADDRESSED BELOW
❑ Wetlands (401): Check all that apply
Wetlands on Site ❑ Yes ❑ No
Wetlands Delineation has been completed: ❑ Yes ❑ No
US ACOE Approval of Delineation completed: ❑ Yes ❑ No
404 Application in Process w/ US ACOE: ❑ Yes ❑ No
Permit Received from US ACOE ❑ Yes ❑ No
Fee Split for multiple permits: (Check# 7')22 )
Isolated wetland on Property ❑ Yes ❑ No
Buffer Impacts: ❑ No ❑ YES: acres)
Minor Variance: ❑ No ❑ YES
Major General Variance ❑ No ❑ YES
401 Application required: ❑Yes ❑ No If YES, ❑ Regular
Perennial, Blue line stream, etc on site ❑ yes ❑ No
For DENR use only
Total Fee Amount $ 400
SUBMITTAL DATES
Fee
SUBMITTAL DATES
Fee
CAMA
$
Variance ❑ Ma'; Min)$
SW ( HD, E) LD, Gen)
Q& i4 -U 8
$ cc�
401:
$
LQS
$
Stream Deter,_
$

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