SW8040622_UNKNOWN_20041007

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW Kg4
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
Dr�il�d7 _
YYYYMMDD

STORMWATER DIVISION CODING SHEET
NCS PERMITS
PERMIT NO.
DOC TYPE
❑ FINAL PERMIT
❑ MONITORING REPORTS
❑ APPLICATION
❑ COMPLIANCE
❑ OTHER
DOC DATE
❑
YYYYM M DD

Compliance Inspection Report
Permit: SW8040622 Effective: 10/07/04 Expiration: 10/07/18 Owner: MAS Properties LLC
Project: Seawatch Sales Center
County: Brunswick NC 211 Approx 036 Miles E Of Sunset Harbor
Rd
Region: Wilmington
Contact Person: Sheldone L Tucker Title: VP
Directions to Project:
Approx 7 mi on Sunset Harbor Road.
Type of Project: State Stormwater - HD - Detention Pond
Drain Areas:
On -Site Representative(s):
Related Permits:
Inspection Date: 02/06/2014 Entry Time: 09:30 AM
Primary Inspector: Christopher Baker
Secondary Inspector(s):
Reason for Inspection: Follow-up
Permit Inspection Type: State Stormwater
Facility Status: ❑ Compliant ❑ Not Compliant
Question Areas:
0 State Stormwater
(See attachment summary)
Brunswick NC 28424
Phone:
Exit Time: 10:00 AM
Phone:
Inspection Type: Compliance Evaluation
Page: 1

Permit: SW8040622 Owner - Project: MAS Properties LLC
Inspection Date: 02/06/2014 Inspection Type: Compliance Evaluation
Inspection Summary:
Reason for Visit: Follow-up
File Review
Is the permit active?
Signed copy of the Engineer's certification is in the fie?
Signed copy of the Operation & Maintenance Agreement is in the file?
Copy of the recorded deed restrictions is in the file?
Comment: Follow up for the Engineers Certification. Has not been received.
Contacted the permit molder and have allowed 30 days for reciept of the cerficication.
Yes No NA NE
Page: 2

Permit: SW8040622 Owner - Project: MAS Properties LLC
Inspection Date: 07/25/2013 Inspection Type: Compliance Evaluation
Inspection Summary:
Please provide a copy of the Engineer's Certificate.
Reason for Visit: Complaint
File Review
Yes No
NA
NE
Is the permit active?
® Q
0
D
Signed copy of the Engineer's certification is in the file?
Cl E
❑
❑
Signed copy of the Operation & Maintenance Agreement is in the file?
■ ❑
.❑
Copy of the recorded deed restrictions is in the file?
■ 0
❑
❑
Comment: This office does not have a copy of the Engineer's Certificate.
Operation and Maintenance
Yes No
NA
NE
Are the SW measures being maintained and operated as per the permit requirements?
■ ❑
❑
❑
Are the SW BMP inspection and maintenance records complete and available for review or provided to DWO Q
upon. request?
Comment:
Page: 2

Compliance Inspection Report
Permit: SW8040622 Effective: 10/07/04 Expiration: 10/07/18 Owner: MAS Properties LLC
Project: Seawatch Sales Center
County: Brunswick NC 211 Approx 036 Miles E Of Sunset Harbor
Rd
Region: Wilmington
Contact Person: Sheldone L Tucker' Title: VP
Directions to Project:
Approx 7 mi on Sunset Harbor Road.
Type of Project: State Stormwater - HD - Detention Pond
Drain Areas:
On -Site Representative(s):
Related Permits:
Inspection Date: 07/25/2013 Entry Time: 12:03 PM
Primary Inspector: David W Cox
Secondary Inspector(s):
Reason for Inspection: Complaint
Permit Inspection Type: State Stormwater
Facility Status: ❑ Compliant Q Not Compliant
Question Areas:
E State Stormwater
(See attachment summary)
Brunswick NC 28424
Phone:
Exit Time: 12:30 PM
Phone: [phone]
Inspection Type: Compliance Evaluation
Page: 1

' - Permit No.
(to he provided by DWQ)
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form may be photocopied for use as an original
DWQ Storrnwater Management Plan Review
A complete stormwater management plan submittal includes an application form, a wet detention basin
supplement for each basin, design calculations, and plans and specifications showing all basin and outlet
structure details.
I. PROJECT INFORMATION
Project Name: I-
_
Con#act Person: ,.j�-{
/
Phone Number:
lv 612. - S-1
For project with multiple basins,
specify which basin this worksheet applies to:
elevations
Basin Bottom Elevation
?� L� ft.
(floor of the basin)
Permanent Pool Elevation
4'2 ft.
(elevation of the orif ce)
Temporary Pool Elevation
ft.
(elevation of the discharge structure overflow)
areas
Permanent Pool Surface Area
(0 Q �J sq. ft.
(water surface area at the orifice elevation)
Drainage Area
-t�. O 'V5 arc
(on -site and off -site drainage to the basin)
Impervious Area
ac.
(on -site and off -site drainage to the basin)
volumes
Permanent Pool Volume
cu. ft.
(combined volume of main basin and forebay)
Temporary Pool Volume
�J , 2j cu. ft.
(volume detained above the permanent pool)
Forebay Volume
_
j'] Q cu. ft.
(approximately 20% of total volume)
Other parameters
SA/DA'
Diameter of Orifice 0.7 in.
Design Rainfall in.
Design TSS Removal 2 %
(surface area to drainage area ratio from DWQ table)
(2 to S day temporary pool draw -down required)
(minimum 85% required
Form: SWU-102 Rev 3.99
Page 1 of 4
0

Footnotes:
When using the Division SA/DA tables; the correct SA/DA ratio for permanent pool sizing should be computed based upon the
actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non-
standard table entries.
2 In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide
90% TSS removal. The NCDBNR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal.
11. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual
(N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code
Section: 15 A NCAC 2H .1008.
Initial in the space provided to indicate the following design requirements have been met and supporting
documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit
Application Form, the agent may initial below. If a requirement has not been met, attach justification.
Applican Initials:
a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
b. The forebay volume is approximately equal to 20% of the basin volume.
c. The temporary pool controls runoff from the design storm event.
d. The temporary pool draws down in 2 to 5 days.
e. if required, a 30-foot vegetative filter is provided at the outlet ( include non -erosive flow
calculations)
£ The basin length to width ratio is greater than 3:1.
g. The basin side slopes above the permanent pool are no steeper than 3:1.
h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail).
i. Vegetative cover above the permanent pool elevation is specified.
). A trash rack or similar device is provided for both the overflow and orifice.
k. A recorded drainage casement is provided for each basin including access to nearest right-
of—way.
I. If the basin is used for sediment and erosion control during construction, clean out of the
basin is specified prior to use as a wet detention basin.
m. A mechanism is specified which will drain the basin for maintenance or an emergency.
III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT
The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the
vegetated filter if one is provided.
This system (check one) 0 dae 0 does not incorporate a vegetated filter at the outlet.
Form: SWU-102 Rev 3.99 Page 2 01' 4

This system (check are) 0 does does not incorporate pretreatment other than a forebay.
Maintenance activities shall be performed as follows:
After every significant runoff producing rainfall event and at least monthly:
a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation,
vegetated cover, and general condition.
b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within
2 to 5 days as designed.
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative
cover to maintain a maximum height of six inches, and remove trash as needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain
proper functioning .
4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is
reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of
in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e.
stockpiling near a wet detention basin or stream, etc.)
The measuring device used to determine the sediment elevation shall be as such that it will give an accurate
depth reading and not readily penetrate into accumulated sediments.
1}-.
When the permanent pool depth reads -7 feet in the main pond, the sediment shall be removed.
When the permanent pool depth reads feet in the forebay, the sediment shall be removed.
BASIN DIAGRAM
(fill in the blanks)el
91110
� 6ef
0 Permanent Pool Elevation = 1
Sediment Remov El.. .7'
75% Sediment Removal Elevation =� 7.5%
Bottom Elevation 5% - a. i'>"'�
Bottom Elevation = 25%n
FOREBAY
►f3RWA 0]I►111
5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These
plants shall be encouraged to grow along the vegetated shelf and forebay berm.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through
Form: SWU-102 Re- 3.99 Page 3 of 4

thq,emergency drain shall be minimized to the maximum extent practical.
All components of the wet detention basin system shall be maintained in good working order.
I acknowledge and agree by my signature below that I am responsible for the performance of the seven
maintenance procedures listed above. 1 agree to notify DWQ of any problems with the system or prior to any
changes to the system or responsible party.
Print r.
Title:
Addre;
Phone
Signat
Date:
Note: 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.
I, V6"V,-f ..JT �Wgp' ,a Notary Public for the State of k�� C �A ,
County of t-1r-,W ,do hereby certify that 61hi.00A -fbLy e'
personally appeared before me this IV day of jy l,jE,::6 , -2,oC>4 ,and acknowledge the due
execution of the foregoing wet detention basin maintenance requirements. Witness my hand and official seal,
OFFICIAL SEAL
Notary Public - Nodh Carolina
I NEW HANOVER COUNTY
H. sCOTT KENNEDY. JI
SEAL
My commission expires Marrs, Z 7 Zoo
Form: SNVU-102 Rev 3.99 Page 4 of 4