SW5220302_As-Built Designer's Certification (General)_20220406

Project Name NCNG JFHQ Raleigh Helipad Permit # SW8
SWA000073
AS -BUILT DESIGNER'S CERTIFICATION FOR
GENERAL MDC
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 below listed General MDC found in 15A NCAC 02H.1050, 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 #Bioretention
® Check here if this is part of a Fast -Track As -Built Package Submittal per 15A NCAC 02H .1044(3).
❑ Check here if the Designer did not observe the construction but is certifying the project.
® Check here if pictures of the SCMs are provided.
Printed NameFrancis Slinsky Signature
NC Registration Number033612 Date
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Consultant's Mailing Address:
5410 Trinity Road _
City:Raleioh State:NC Zip:27607
Phone:[phone]
Consultant's Email address:
[e-mail]
i0 Circle N if the as -built value differs from the Plan/permit. If N is circled, provide an explanation on page 3.
OO N/E = Not Evaluated (provide explanation on page 2). ON/A = Not Applicable to this project or SCM.
Consultant's Certification 15A NCAC 02H .1003(3) & General MDC 15A NCAC 02H .1050
TREATMENT REQUIREMENTS
OAs-built
ON/E
ON/A
1. The SCM achieves runoff treatment.
Y or N
2. The SCM achieves runoff volume match.
Y or N
3. Runoff from offsite areas and/or existing BUA is bypassed.
Y or N
4. Runoff from offsite areas and/or existing BUA is directed into
Y or N
the permitted SCM and is accounted for at the full build -out
potential.
5. The project controls runoff through an offsite permitted SCM
Y or N
N/A
that meets the requirements of the MDC.
6. The net area of new BUA increase for an existing project has
Y or N
been accounted for at the appropriate design storm level.
NCDEQ 2/9/2018

Project Name NCNG JFHQ Raleigh Helipad Permit # SW8
SWA000073
7. The SCM(s) meets all the specific minimum design criteria.
Y or N
VEGETATED SETBACKS /BUA
OAs-built
ON/E
ON/A
1. The width of the vegetated setback has been measured from
Y or N
the normal pool of impounded waters, the MHW line of tidal
waters or the top of bank of each side of rivers or streams.
2. The vegetated setback is maintained in grass or other
Y or N
vegetation.
3. BUA that meets the requirements of NCGS 143-214.7 (b2)(2)
Y or N
N/A
is located in the setback.
4. BUA that does not meet the requirements of NCGS 143-214.7
Y or N
N/A
(b2)(2) is located within the setback and is limited to:
• Publicly funded linear projects (road, greenway sidewalk)
• Water -dependent structures
• Minimal footprint uses (utility poles, signs, security
lighting and appurtenances)
5. Stormwater that is not treated in an SCM is released at the
Y or N
N/A
edge of the setback and allowed to flow through the setback as
dispersed flow.
STORMWATER OUTLETSOAs-built
ON/E
OO N/A
1. the outlet handles the peak flow from the 10-year storm with
y0 or N
no downslope erosion.
VARIATIONSOAs-built
ON/E
(IN/A
1. A variation (alternative) from the stormwater rule provisions
Y N
0
has been implemented.
or
2. The variation provides equal or better stormwater control and
Y N
N/A
equal or better protection of surface waters.
or
COMPLIANCE WITH OTHER REGULATORY PROGRAMS
OAs-built
ON/E
ON/A
1. The project is compliant with other applicable regulatory
0 or N
programs.
SIZING
OAs-built
ON/E
ON/A
1. The volume of the SCM takes the runoff from all surfaces into
O or N
account and is sufficient to handle the required storm depth.
CONTAMINATED SOILSOAs-built
ON/E
(IN/A
1. Infiltrating SCM's are not located in or on areas with
Oy or N
contaminated soils.
SIDE SLOPES
OAs-built
ON/E
ON/A
1. Vegetated side slopes are no steeper than 3H:1V.
Y or N
NCDEQ 2/9/2018

Project Name NCNG JFHQ Raleigh Helipad Permit # SW8
SWA000073
2. Side slopes include retaining walls, gabion walls, or other
surfaces that are steeper than 3H:1V.
Y or N
3. Vegetated side slopes are steeper than 3H:1V (provide
supporting documents for soils and vegetation).
Y or N
EROSION PROTECTIONOAs-built
OO N/E
(IN/A
1. The inlets do not cause erosion in the SCM.
Y or N
2. The outlet does not cause erosion downslope of the discharge
point during the peak flow from the 10-year storm.
1 or N
EXCESS FLOWSOAs-built
OO N/E
(IN/A
1. An overflow / bypass has been provided.
OY or N
DEWATERING
OAs-built
ON/E
ON/A
1. A method to drawdown standing water has been provided to
facilitate maintenance and inspection.
Oy or N
CLEANOUT AFTER CONSTRUCTIONOAs-built
OO N/E
(IN/A
1. The SCM has been cleaned out and converted to its approved
design state.
Oy or N
MAINTENANCE ACCESSOAs-built
OO N/E
(IN/A
1. The SCM is accessible for maintenance and repair.
Y or N
2. The access does not include lateral or incline slopes >3:1.
Y or N
DESIGNER QUALIFICATIONS (FAST -TRACK PERMIT)OAs-built
OO N/E
(IN/A
1. The designer is licensed under Chapters 89A, 89C, 89E, or
89F of the General Statutes.
Oy or N
Provide an explanation below for every MDC that was not met, and for every item marked "N/A" or "N/E."
Attach additional pages as needed.
Treatment Requirements - 5: No offsite SCM
Vegetated Setbacks - 3,4: There is no BUA located within the vegetated setbacks
Vegetated Setbacks - 5: Stormwater is treated in the Bioretention SCM
Variations - 1,2: no variation from stormwater rules, therefore #2 is not applicable
NCDEQ 2/9/2018