SW8980731_COMPLIANCE_19990501

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW9(i
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE-
YYYYM M DD

Compliance Inspection Report
Permit: SW8980731 Effective:05/01/99 Expiration:
County: Brunswick
Region: Witmington
Contact Person: Harry Rickenbacker Title: Partner
Directions to Project:
Type of Project: State Stormwater - HD - Detention Pond
Drain Areas: 1 - (Shallotte River) (03-07-59) ( SC)
On -Site Representative(s):
Related Permits:
Inspection Date: 0612212009 Entry Time: 02:30 PM
Primary Inspector: David W Cox
Secondary Inspector(s):
Reason for Inspection: Routine
Permit Inspection Type: State Stormwater
Facility Status: I] Compliant ® Not Compliant
Question Areas:
® State Stormwater
(See attachment summary)
Owner: Wellington Place LLC
Project: Wellington Place Townhomes
Exit Time: 02A5 PM
Phone:
Phone: [phone]
Inspection Type: Stormwater
Page: 1

.Permit: SW8980731 Owner - Project: Wellington Place LLC
Inspection Date: 06/22/2009 Inspection Typo: Stormwater Reason for Visit: Routine
Inspection Summary:
In order to bring this state stormwater permit into compliance you must provide the following:
1. The required Engineers Certificate.
2. Renew this permit that expired on May 1, 2009.
File Review Yes No NA NE
Is the permit active? ❑ ❑ n
Signed copy of the Engineer's certification is in the file? ®❑ 0 Q
Signed copy of the Operation & Maintenance Agreement is in the file?
Copy of the recorded deed restrictions is in the file? 0 0 0
Comment: 1. Permit expired on May 1, 2009
2. This office has not received a copy of the required Engineer's Certificate.
V— Nn NA mr:
Are the SW measures constructed as per the approved plans? MOOD
Are the inlets located per the approved plans? M 0 ❑ D
Are the outlet structures located per the approved plans? ® n n n
Comment:
Operation and Maintenance Yes No NA NE
Are the SW measures being maintained and operated as per the permit requirements? BODO
Are the SW BMP inspection and maintenance records complete and available for review or provided to DWQ n rl n im
upon request?
Comment:
Page: 2

East Coast
Engineering Company, P.A. 4918 Main Street
Fax: [phone] Consulting Engineers Post Office Box 2869
Office: 910.754.8029 Shallotte, NC 28459
Friday, November 20, 1998
Ms. Linda Lewis, Environmental Engineer RECEIVED
NCDENR-Division of Water Quality
127 Cardinal Drive Extension NOV 2 41998
Wilmington, North Carolina 28405
SY:
Re: Wellington Place Townhouses - Stormwater Plan
Stormwater Project No. SW8 980731
Shallotte, North Carolina
/t�
Dear 114L—&&wiY -
We received your request for additional information for the above mentioned
project. Enclosed are two revised sets of plans and calculations based on the following
information:
1. We have added a unit footprint to the plans. It appears that the 18 sf front
porch was not included in the building area on the original submittal. Also the 8x 12
concrete patios were not included in the sidewalk totals. The amounts of impervious areas
have been revised and the pond has been resized accordingly.
2. Thank you for this information.
3. We have labeled the elevation of the emergency spillway as well as added
additional pond dimensions.
4. We have delineated the drainage area and shown this in the legend. We have
also revised the drainage area to allow for runoff from the patios in the rear of the buildings
to drain to the pond.
Should you require any additional information, please do not hesitate to contact
either Alan Lewis or myself at our office.
Sincerely,
421
David B. Bowman, P.E.
President
East Coast Engineering
Company, P.A.
Enclosures
pc: Wellington Place, LLC
Pile: 98-0188

-/I, Ez,�, Coast En`,ineerina
Company. P..-�_
SUBJECT I
r7-P.O. Box 2S69
SHEET NO. I OF .._�
1. Shallattc. North Caralins =3469
V 910.7;-I.50]9(0)910.'f--8049(Fax.)
C.-kLCLL\=D BY
SCkLE DATE "Ix-98
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State of North Carolina
Pepwi1ment of Environment
and Natural Resources
Wilmington Regional Office
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Division of Water Quality
October 13, 1998
Mr. David Bowman, P.E.
East Coast Engineering
PO Box 2869
Shallotte, NC 28459
Aqq�
NCDENR
NORTM CAROLINA DEPARTMENT OF
ENVIRONMENT AN4 NATURAL RESOURCES
Subject: ACKNOWLEDGEMENT OF RECEIPT AND
REQUEST FOR ADDITIONAL INFORMATION
Stormwater Project No. SW8 980731
Wellington Plate
Brunswick County
Dear Mr. Bowman:
The Wilmington Regional Office received a Stormwater Management Permit Application for
Wellington Place on July 23, 1998. A preliminary review of that information has determined that the
application is not complete. The following information is needed to continue the stormwater review:
i
1. Please provide a unit footprint with dimensions, and show all wood decking and concrete
areas. My calculation of the buildings is higher than yours. Please also dimension the
sidewalk. Again, my calculation of the amount of sidewalk is higher than yours.
2. Please note that if items on the checklist are not applicable, do not leave them blank -mark
them as NIA. Since our terrain is relatively flat, the required emergency drain is accepted to
be a portable pump. As long as the property remains in the ownership of the permittee, the
requirement to provide a recorded drainage easements can be waived. At the time the property
changes hands, an easement must be granted to the party responsible for maintenance. The
30' vegetated filter is not required for ponds which are sized using the 90% TSS chart.
3. Please label the elevations on the pond detail. You have shown dimensions for a line that is
not labelled with the elevation. Since the figure is a unique shape, please also show the overall
length and width at both ends.
4. Please delineate the 1.3 acre drainage area to the pond.
I27 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 9I0-395-3900 FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper

Mr. Bowman
October 13, 1998
Stormwater Project No. SW8 980731
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 November 13, 1998, or the application will
be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including
the application fee.
If you have any questions concerning this matter please feel free to call me at [phone].
Sincerely,
i
Ms. Linda Lewis
Environmental Engineer
RSS/ari: S:1WQSISTORMWAT1ADDINFO198073LOCT
CC' Linda Lewis
Harry Rickenbacker
Central Files

�r
Permit No, 50J 3 t �Oq�;l
(to be provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMW ATER MANAGEMENT PEF—MIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWOSiormwater Managemeni Plan Review:
A complete stormwater management plan submittal includes a wet detention basin supplement for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a fully executed
operation and maintenance agreement_
I. PROJECT INFORMATION (please complete the following information):
Project Name: lK1�r��NGYo.V PGi4CS Taw.t/.4(oysEs _ ._
Contact Person: .0AVi a B ATkC✓A1AV Phone NumbM: o ) 794- Sot
For projects with multiple basins, specify which basin this worksheet applies to:
Basin Bottom Elevation z/ a ft.
Permanent Pool Elevation zs5 fL
Temporary Pool Elevation z6.6 fL
Permanent Pool Surface Area 3iS7 sq. fL
Drainage Area
Impervious Area
Permanent Pool Volume
Temporary Pool Volume
Forebay Volume
�, 3o ac.
0.8¢ ac.
(average elevation of the floor of the basin)
(elevation of the orifice)
(elevation of the discharge structure overflow)
(water surface area at the orifice elevation)
(on -site and off -site drainage to the basin)
(on -site and off -site drainage to the basin)
79/ o . cu. fL (combined volume of main basin and forebay)
3145, cu. ft.
Z cu. ft.
SA/DA1 used S: izL %
Diameter of Orifice in.
Design TSS Removal 90 C7a
II. REQUIRED ITEMS CHECKLIST
(volume detained above the permanent pool)
(surface area to drainage area ratio)
(851,7o TSS removal required, see item k below)
The following checklist outlines design requirements per the Stormwater Best Management Practices manual
(N.C. Department of Environment, Health and Natural Resources, November 1995) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Storrnwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Form SwU-lot January 1998 Page 1 of

a. The temporary pool controls runoff from the 1 inch storm event-
b. The basin length to width ratio is 3:1.
c. The basin side slopes above the permanent pool are no steeper than 3.1,
d. A submersed and vegetated perimeter shelf at less than 6:1 is provided (show detail).
e. Vegetation above the permanent pool elevation is specified-
f. An erneraency drain is provided to empty the basin. — PUvr�Pin� 6�-
g. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
h. The temporary pool draws down in 2 to 5 days.
i.
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A trash rack is provided for both the overflow and orifice.
The forebay volume is approximately equal to 20% of the total basin volume.
Sediment storage is provided in the permanent po4
A 30-foot vegetative filter is provided at the outlet2 (include erosive flow calculations)
m. Recorded drainage easement for each basin including access to nearest right-of-way.
a. A site specific operation and maintenance (0&M) plan is provided.
o. A vegetation managementlmowing schedule is provided in the O&M plan.
p. Semi-annual inspections are specified in the 0&M plan.
g. A debris check to be performed after every storm event is specified in the 0&-M plan -
Specific clean -out benchmarks are specified in the O&M plan (elevation or depth).
s. A legally responsible parry is designated in the O&M plan3 (include name and title).
t. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified to be performed prior to use as a wet detention basin.
00 -
1 When using the Division SAJDA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the Carr= vaiue for non-
standard table entries.
2 The requirement for a vegetative filter may be waived if the wet detention basin is designed to meet 90% TSS removal.
3 The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a
resident of the subdivision has been named the president,
Form SWU-IO2 January 1998 Page 2 of 2

East Coast En��ineerinb
1OB-/•cdNh�iad� P� _ 4
Company,
SUBIECr MAW
/ P.O. Bux :,i69
Shallouc, Norrh Carolina T3469
SHF-E i N0. I OF
CAL.CUL-#TED BY
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SCALE DAT'c -IZ-98
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East Coast Engineering
SOB U)awll& C� R.ls' -
Company. P.A.
SUBJECT
P.O. Sox ZS69
VShallort=. North Carolina 23469
SHEET NO. OF
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WELLINGTON PLACE
DAVID BOWMAN 7/16/98
VOLUME OF RUNOFF FROM 1 INCH RAINFALL: 3925 CF
STORM WATER REALEASE METHOD: ORIFICE
ELEVATION OF NORMAL POOL (BOTTOM OF ORIFICE): 25.5 FT. MSL
DIAMETER OF ORIFICE: .75 IN.
AVERAGE SURFACE AREA OF POND BETWEEN
NORMAL POOL AND TOP OF RISER: 3573 SQ. FT.
ELEVATION OF POOL AT DESIGN STORAGE: 26.6 FT. MSL
TIME INCREMENT FOR ROUTING: 7 HR.
TIME
ELEV.
HEAD
FLOWRATE TYPE FLOW VOLUME
END ELEV
0
26.6 1.1
1.548532E-02 ORIFICE 390.2302 26.49078
7
26.49078 .9907837
1.469648E-02 ORIFICE 370.3513
26.38713
14
26.38713
.8871308
1.390649E-02 ORIFICE 350.4436
26.28905
21
26.28905
.7890491
1.311523E-02 ORIFICE 330.5039
26.19655
28
26.19655
.6965485
1.232252E-02 ORIFICE 310.5276
26.10964
35
26.10964
.6096382
1.152816E-02 ORIFICE 290.5097
26.02833
42
26.02833
.5283318
1.073192E-02 ORIFICE 270.4443
25.95264
49
25.95264
.4526406
9.933461E-03 ORIFICE 250.3232
25.88258
56
25.88258
.3825798
.0091324 ORIFICE 230.1365 25.81817
63
25.81817
.3181687
8.328228E-03 ORIFICE 209.8714
25.75943
70
25.75943
.2594299
7.520279E-03 ORIFICE 189.511
25.70639
77
25.70639
.2063904
6.707623E-03 ORIFICE 169.0321
25.65908
84
25.65908
.1590824
5.888911E-03 ORIFICE 148.4005
25.61755
91
25.61755
.117548
5.06211E-03 ORIFICE 127.5652
25.58185
98
25.58185
8.184433E-02 4.223945E-03 ORIFICE 106.4434
25.55205
105
25.55205
5.205345E-02 3.368594E-03 ORIFICE 84.88858
25.5283
112
25.5283
2.829552E-02 2.483606E-03 ORIFICE 62.58687 25.51078
119
25.51078
1.077843E-02
1.532857E-03 ORIFICE 38.628
25.49997