SW6221004_Designers Certifications_20240123

Post-Construction Stormwater Manage Ile
Permit No. SW622 0
AS-BUILT DESIGNER'S CERTIFICATION GENERAL MDC
1 hereby state that I am a licensed professional and I certify by my signature and seal below, that
of the project named above to the best of m abilities with all due r-
and observed the constructionp J y
and diligence, and that the project meets the below listed General MDC found in NCAC 02H.1050
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 rule
and statutes has been preserved.
Check here if this is a partial certification. Section/phase/SCM #?
Check here if this is a 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 Kenneth W. Smith Jr. Signature
NC Registration
Number NC PE#045277 Date January 23, 2024
SEAL. �� C ,jr� Consultant's Mailing Address: 121 Bulittle Drive
City/State/ZIP_Linden, NC 28356
045277 =
Phone Number 910-391-5923
h Vu SVA: � Consultant's Email address:
smithsiteconsultants .gmaii.com
r
i0 Circle N if the as-built value differs from the Plan. If N is circled, provide an explanation on Page 2.
OO N/E = not evaluated (provide explanation on page 2) (I N/A= not applicable to this SCM or projec .
Consultant's Certification NCAC .1003((3) &General MDCOAs-built zON/E 3 NIA
.1050
A. TREATMENT REQUIREMENTS
j 1. The SCM achieves runoff treatment. or N
2_ The SCM achieves runoff volume match_ or N
3. Runoff from offsite areas and/or existing BUA is Y or N
bypassed.
4. Runoff from offsite areas and/or existing BUA is directed Y or N
into the permitted SCM and is accounted for at the full ✓
build-out potential.
5. The project controls runoff through an offsite permitted Y or N
SCM that meets the requirements of the MDC.
j 6. The net area of new BUA increase for an existing project Y or N
has been accounted for at the appropriate design storm
level.
7. The SCM(s) meets all the specific minimum design or N
criteria.
B. VEGETATED SETBACKS / BUA
1. The width of the vegetated setback has been measured Y or N
from 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 Y or N
b2 2 is located in the setback.
Page 3 of 6

Post-Construction Stormwater Manager 9
Permit No. SW622 100
DAs-built ON/E ON/A
4. SUA that does not meet the requirements of NCGS 143- Y or N
214.7 (b2)(2) is located within the setback and is limited
to:
a. Publicly funded linear projects (road, greenway
sidewalk)
b. Water-dependent structures
c. Minimal footprint uses (utility poles, signs, security
lighting and appurtenances)
5. Stormwater that is not treated in an SCM is released at Y or N j
the edge of the,setback and allowed to flow through the
setback as dispersed flow.
C. STORMWATER OUTLETS —the outlet handles the peak Y or N �f
flow from the 10 year storm with no downslo a erosion.
D. VARIATIONS
1. A variation (alternative) from the stormwater rule Y or N
provisions has been implemented. !f
2. The variation provides equal or better stormwater control
and equal or better protection of surface waters. Y or N
E. COMPLIANCE WITH OTHER REGULATORY PROGRAMS Y or N
has been met.
F. SIZING -the volume of the SCM takes the runoff from all
surfaces into account and is sufficient to handle the requiredY.�or N 1
storm depth. h
G. CONTAMINATED SOILS —infiltrating SCM's are not Y or N j!
located in or on areas with contaminated soils.
H. SIDE SLOPES
1. Vegetated side slopes are no steeper than 3H:1V. Y or N
2. Side slopes include retaining walls, gabion walls, or Y or N
other surfaces that are steeper than 3H:1V.
3. Vegetated side slopes are steeper than 3H:1V (provide Y or N
supporting documents for soils and vegetation).
1. EROSION PROTECTION
1. The inlets do not cause erosion in the SCM. Y or N
2. The outlet does not cause erosion downslope of theC."or N
discharge point during the peak flow from the 10 year
storm.
J. EXCESS FLOWS —An overflow/ bypass has been or N
provided.
K. DEWATERING —A method to drawdown standing water has Y or N `; p
been provided to facilitate maintenance and inspection.
L. CLEANOUT AFTER CONSTRUCTION —the SCM has been Y or N
cleaned out and converted to its approved design state.
M. MAINTENANCE ACCESS
1. The SCM is accessible for maintenance and repair. or N P
2. The access does not include lateral or incline slopes Y or N
>3:1.
N. DESIGNER QUALIFICATIONS (FAST-TRACK PERMIT)—
The designer is licensed under Chapters 89A, 89C, 89E, or or N
89F of the General Statutes.
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:
Page 4 of 6 j

Stormwater Mana a ment
Post-Constructiong
Permit No. SW622 I 004
AS-BUILT DESIGNER'S CERTIFICATION FOR INFILTRATION PROJECT
1 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.1051 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 #?
Check here if this is a part of a Fast-Track As-Built Package Submittal per .1044(4).
Check here if the Designer did not observe the construction, but is certifying the project.
Check here if pictures of the SCM are provided.
i
Printed
Name Kenneth W. Smith Jr. Signature ' 54•
I
NC Registration Number NC PE#045277 Date January 23, 2024
r— ��y z rift:' Consultant's Mailing Address:
I SEAL: \e,,P�ir°s C.E' a'°r
121 Bulittle Drive
T�-'.� City/State/ZIP Linden NC 28356
- /O`F5`-20 Phone Number 910-391-5923
9.
a fti.-.` •• ._ .:�`, o Consultant's Email address:
smithsiteconsultants mail.com
iD Circle N if the as-built value differs from the Plan. If N is circled, provide an explanation on Page 2.
OO N/E = not evaluated (provide explanation on page 2) OO N/A= not applicable to this project or SCM
This Certification must be completed in conjunction with the General MDC certification under NCAC 02H.10 0 ,
Consultant's Certification (MDC .1051) OAs-built ON/E ON/A'I`I
A. Inlets/ Pretreatment/ Design Depths I Elevations
1. Inlets are located per the approved plans. Y or N
2. Pretreatment measures are provided? (Rooftop runoff Y or N t
does not require re-treatment.
3. BASIN only—the area and depth of the basin is consistent
with the approved plans
4. TRENCH only-the provided width, length and height of the
trench are consistent with the approved plan.
5. TRENCH only-the provided length and size of the
perforated pipe is consistent with the approved plan.
6. The bottom elevation of the basin /trench is consistent
with the approved plans. r
7. The bypass elevation is consistent with the approved plan.
8. The overflow elevation is consistent with the approved
Ian.
B. Soils/SHWT/Subgrade
1. The hydraulic properties of the insitu soils are in Y or N
accordance with the soils report.
2. The lowest point of the infiltration system is a minimum of or N
2 feet above the SHWT. V
3. If separation to the SHWT is less than 1 foot, the water Y or N
table draws down to its re-storm level within 72 hours.
4. The slope of the soil subgrade is <= 2%. Y or N
C. Drawdown Time _
1. The system dewaters within 72 hours? Y or N
Page 5 of 6 �

Post-Construction Stormwater Management
Permit No. SW622 00
� OAs-built OO N/E OO N/A
2. The Insitu soils were removed and replaced with suitable Y or N
infiltration media to achieve the 72 hour drawdown.
D. Observation Port—for underground systems, a minimum of Y or N
one inspection port has been provided.
Provide an explanation for every MDC that was not met, and for every item marked "N/A" or"WE",
below. Attach additional pages as needed:
Page 6 of 6