SW1191201_As-Built - Wet Pond Certification (Wet Pond A)_20220314

State Stormwater Management
Permit No. SW1191201
AS -BUILT DESIGNER'S CERTIFICATION FOR WET DETENTION POND PROJECT
I hereby state that I am a licensed professional and I certify by my signature and seal below, that I
have observed the construction of the project named above to the best of my abilities with all due care
and diligence, and that the project meets all of the MDC found in NCAC 02H.1053, in accordance with
the permit documents, plans and specifications on file with or provided to the Division, except as
noted on the "AS -BUILT" drawings, such that the intent of the stormwater rules and the general
statutes has been preserved.
Check here if this is a partial certification. Section/phase/SCM #? Wet Pond A
Check here if this is part of a Fast -Track As -Built Package Submittal per .1044(3).
Check here if the Designer did not observe the construction, but is certifying the project.
Check here if pictures of the SCM are provided.
Printed
Name Francis Slinsk
NC Registration Number 033612
SEAL: � 1CAfR''��,
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Signature �M /-y
Date
Consultant's Mailing Address:
5410 Trinitv Road
City/State/ZIP Raleigh/NC/27607
Phone Number 919 866-45
Consultant's Email address:
[e-mail]
O Circle N if the as -built value differs from the Plan/permit. If N is circled, provide an explanation on
page 2
,.DN!E = not evaluated (provide explanation on page 2) ON/A = not applicable to this project or SCM.
This Certification must be completed in conjunction with the General MDC certification under NCAC
02H.1050
Consultant's Certification (MDC .1053)
OAs-built
ON/E
ON/A
A. Forebay / Depths / Fountain
1. The available Sediment storage is consistent with the
Y or N
N/A
approved plan and is a minimum of 6 in.
2. Water flow over the forebay berm into the main pond
Y or N
N/A
occurs at a non -erosive velocity.
Y or N
N/A
3. The provided Forebay Volume is 15%-20% of the main
pool volume.
4. The Forebay entrance elevation is deeper than the exit
Y or N
I-
N/A
elevation into the pond.
5. The Average Design Depth of the main pond below the
permanent pool elevation is consistent with the permitted
Y or N
N/A
value?
6. Fountain documentation is provided.
Y or N
N/A
B. Side slopes / Banks / Vegetated Shelf
1. The width of the Vegetated Shelf is consistent with the
Y or N
N/A
approved plans and is a minimum of 6 feet.
Y or N
2. The slope of the Vegetated Shelf is consistent with the
N/A
approved plans and is no steeper than 6:1.
C. As -built Main Pool / Areas / Volumes / Elevations
1. The permanent pool surface area provided is consistent
Y or N
N/A
with the permitted value.
2. The Temporary Pool Volume provided is consistent with
Y or N
N/A
the permitted value.
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State Stormwater Management
Permit No. SW1191201
3.
The permanent pool elevation is consistent with the
Y
N
N/A
permitted value.
or
4.
The temporary pool elevation is consistent with the
Y
N
N/A
permitted value.
or
OAs-built
ON/EON/A
D. Inlets / Outlet / Drawdown
1.
The design volume draws down in 2-5 days.
Y
or
N
N/A
2.
The size of the Orifice is consistent with the permitted
Y
N
N/A
value.
or
3.
A trash rack is provided on the outlet structure.
Y
or
N
N/A
4.
Hydrologic impacts to the receiving channel are minimized
Y
N
from the 1 yr 24 hr storm discharge?
or
N/A
5.
The inlets and the outlet location are situated per the
0
or
N
approved Ian and avoid short-circuiting.
E. Vegetation
1.
The vegetated shelf has been planted with a minimum of 3
Y
or
N
N/A
diverse species.
2.
The vegetated shelf plant density is consistent with the
approved plans and is no less than 50 plants per 200 sf or
Y
or
N
N/A
no less than 24 inches on center.
Provide an explanation for every MDC that was not met, and for every item marked "N/A" or "N/E"
below. Attach additional pages as needed:
All items marked N/A - Project is still under construction, grading is not complete, both
SCMs are still sediment basins and have not been converted to permanent Wet Ponds.
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