SW5140801_As-Built - Certification_20240206 (2)

Post-Construction Stormwater Management
Permit No. SW5140801
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
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 #? 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 i-Ani
Name Frank Slinsky Signature
NC Registration Number b 3 3 b It- Date 2—/ S /2 0 21
SEAL: Consultant's Mailing Address:
\\\.. CAR0",, 5410 Trinity Road, Suite 102
oQ.• S S% ••/1,
�• • oFE °ti' % City/State/ZIP Raleigh, NC 27607
•
;•a SEAL 9r":
• 0 3 3 61 2 _ Phone Number [phone]
ice`•• <Q'••�:
Consultant's Email address:
i4/4/ IS SLIM '\\
[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
ON/E = not evaluated (provide explanation on page 2) ©N/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) @As-built ON/E ON/A
A. Forebay/ Depths / Fountain
1. The available Sediment storage is consistent with the QY or N
approved plan and is a minimum of 6 in.
2. Water flow over the forebay berm into the main pond QY or N
occurs at a non-erosive velocity.
3. The provided Forebay Volume is 15%-20% of the main Q or N
pool volume.
4. The Forebay entrance elevation is deeper than the exit 0 or N
elevation into the pond.
5. The Average Design Depth of the main pond below the
permanent pool elevation is consistent with the permitted ® or N
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 QY or N
approved plans and is a minimum of 6 feet.
2. The slope of the Vegetated Shelf is consistent with the or N
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 0 or N
with the permitted value.
2. The Temporary Pool Volume provided is consistent with Y or N
the permitted value.
Page 5 of 6

Post-Construction Stormwater Management
Permit No. SW5140801
3. The permanent pool elevation is consistent with the or N
permitted value.
4. The temporary pool elevation is consistent with the Q or N
permitted value.
OAs-built OO N/E ©N/A
D. Inlets/Outlet/ Drawdown
1. The design volume draws down in 2-5 days. or N
2. The size of the Orifice is consistent with the permitted or N
value.
3. A trash rack is provided on the outlet structure. QY or N
4. Hydrologic impacts to the receiving channel are minimized 0 or N
from the 1 yr 24 hr storm discharge?
5. The inlets and the outlet location are situated per the 0 or N
approved plan and avoid short-circuiting.
E. Vegetation
1. The vegetated shelf has been planted with a minimum of 3 ® or N
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 QY or N
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:
Item A.6: There is no fountain in the wet pond.
Page 6 of 6