WQ0044875_Other_20240530

ASSOCIATES ,TIDEWATER
ENGINEERS = SURVEYORS • PLANNERS
ESf.1961 JACKS • •
RTH CAROLINA
VIA EMAIL ONLY May 30, 2024
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Mr.Tyler Benson f
NCDEQ
127 Cardinal Drive Extension
Wilmington,NC 28405 RE: Certification of Construction(Final)
Sandy Hollow
Permit No.WQ 0044875
Onslow County, NC
Dear Mr.Benson:
We are providing herein the required Sewer System Construction Certification for the above referenced
project as shown below.
I, Timothy M. Stewart, as a duly registered Professional Engineer in the State of North Carolina,having
been authorized to.observe the construction of the project, Sandy Hollow Permit No.WO.0044875, hereby state
that to the best of my abilities, due care and diligence was used in the observation of the project construction such
that the construction was observed to have been built within substantial compliance and intent of approved plans
and specifications.
Please find enclosed one Fast Track Sewer Engineering Certification Form and Checklist and one copy of
the Record Drawings, sewage Pump Station Calculations,and Buoyancy Calculations.If you have any questions
or need any additional information,please give me a call.
Sincerely,
TIDEWATER AS C T S,INC.
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Timothy M St part,P.E.
ec: Ms. Wynne Ray w/enclosures Q�H CAgO
Mr. Elijah Morton w/enclosures ,`�DpFES �fy�
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Ms. Jennifer M. Ward w/enclosures = SEAL _
Mr. Nick Lentz Wenclosures - i 14575
xc: CF (P), LAM, ;O GINS . P,•
TMS/jrh M
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C I:rM 5.Letter.NCDEQ.SandyIiollow.Certof ConstFinal.05.30,2024
306 New Bridge Street (P.O.Box 976 Jacksonville,NC 28541-09761(910)455-2414
Firm License Number F-0108 1 www.tidewaterenc.com

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,aSign Envelope ID:EAABAB73-6DD7-4456-BA 14CE09D74C71
FAST-TRACK SEWER ENGINEERING CERTIFICA*MN
PERMITTEE: ONWASA
PERMIT#: WQ0044875
PROJECT: Sandy Hollow Public Pump Station and Sewer
ISSUE DATE: November 9, 2023
COUNTY: Ons(Qw
This project shall not be considered complete nor allowed to operate in accordance with Condition 7 of this permit until
the Division has received this Certification and all required supporting documentation. Consequently, it should be 1
submitted in a manner that documents the Division's receipt. Send the required documentation to the Wilmington
Regional Supervisor, Water Quality Section at the address at the bottom,
The Permittee is responsible for tracking all partial certifications up until a final certification is received. Certifications
shall include Phase/Section covered, line size & lengths installed, and listing of lots/connections to be served and uuma
station design, if a2211cable. A Final Certification shall be a complete set of record drawings and design calculations
regardless of whether partials have been submitted.
PERMITTEE'S CERTIFICATION
I,the undersigned agent for the Permittee, hereby state that this project has been constructed pursuant to the applicable
standards & requirements, the Professional Engineer below has provided applicable design/construction information to
the Permittee, and the Permittee is prepared to operate &maintain the wastewater collection system permitted herein
or portions thereof,
Printed Name,Title S, ,t! Date
EN EER'S CERTIFICA ION
I, I IMo'( I'1• SEA LT as a duly re istered Professional Engineer in the State of North Carolina, having been
authorized o ( periodically, ❑ weekly, full time) observe the construction of the project name and location as l
referenced above for the above Permittee hereby state that, to the best of my abilities,due care and diligence was used
in the observation of the following construction:
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approximately 2,450 linear feet of 8-inch gravity sewer;an 85—gallon per minute pump station with duplex pumps,on-
site audible and visual high water glarms,telemetry,and a permanent generator with automatic transfer switch as well
as approximately 3,520 linear feet of 4-inch force main to serve 48 four-bedroom residences as part of the Sandy Hollow
Public Pump Station and Sewer project,gnd the discharge of 23,040 gallons per day,
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such that the construction was observed to be built in compliance of this permit; 15A NCAC 2T; the Division of Water
Resources' (Division) Gravity Sewer Minimum Design Criteria adopted February 12, 1996 as applicable; the Division's
Minimum Design Criteria for the Fast-Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as
applicable;and other supporting materials.
North Carolina Professional Engineer's Seal w/signature &date
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[R(Final ❑ Partial (include description) CAR .,
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t Vaso Opp tvT 0,17 31
SEAL
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,14575.... -
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Certification Comments/Qualifiers (attach if necessary): �,g�•...� �.: Q.; i
Oh NQINV-f P
NC DWR—Water Quality Regional Operations Section 127 Cardinal Drive Extension Wilmington,NC 29405
Wilmington Regional Office Phone: [phone]S FAX:[phone]

,uSign Envelope ID:EAABAB73-6DD7-4456-B 4CE09D74C71
SIVER ENGINEERING CERTIFICATION CHEAL(ST
To be completed by the certifying engineer prior to operation of the permitted sewers,per 15A NCAC 02T.0116.
Certifying Engineer: ( !mo-ray V � f✓w'tI`'�
Certification Review Date: 5)J Z 8 2
Project Nacre Sf 43
WQ00_++ Project County: .SLOu-
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{
1) Has permittee information changed since the permit was issued(or last mod' ied): change of mailing address, i
change of ownership,transfer from developer to HOA/POA,etc. ❑Yes [Z No
• if yes, please provide either a change of ownership form or new contact information. Note that transfer of
permits from the developer to the HOA/POA must occur with the first certification.
2) Have the as-built drawings have been signed,sealed, and dated by an N.C.PE? [V(Yes ❑ No
3) Final Engineering certification? [f Yes ❑ No
• If Partial Engineering certification, provide detailed narrative including what is being certified in the current
phase,what was previously certified(if applicable),and what is left to be certified.
4) Adequate information related to sewer lines: ErYes ❑ No ❑ N/A
• Three feet minimum cover has been provided for all sewers unless ferrous pipe was Installed.
• Minimum diameters for gravity sewers are 8-inches for public lines and 6-inches for private lines.
• Manholes have been installed:At the end of each line,at all changes in grade,size, or alignment, at all
intersections,and at distances not greater than 425 feet; minimum diameter shall be 4 feet(48-inches).
5) Adequate information related to pump stations: 9Yes ❑ No ❑ N/A
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• Ensure power reliability option was selected per 15A NCAC 02T.0305(h).
6) Was project construction completed in accordance with all of the following: Yes ❑ No ❑ N/A
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• 15A NCAC 02T,Minimum Design Criteria (MDC)for the permitting of Gravity Sewers (latest version),and MDC
for the Permitting of Pump Stations and Force Mains(latest version)?
If not,a variance approval is required in accordance with 15A NCAC 02T.0105(b),prior to certification and operation.
• Contact the Central Office to discuss the variance to determine a course of action.
• Applicant must submit two copies of the variance request form, plans,specifications, calculations,and any other
pertinent information to the Central Office(one hard copy,one digital copy).
• The central office will review the variance request,and if approvable,specific language regarding the variance
will be incorporated into the permit,either via a special condition or a supplementary letter.A copy of the
reissued permit with variance language or the variance letter must be maintained with the original documents.
7) Does the project contains high priority lines(15A NCAC 02T.0402(2))? ❑ Yes No
• If yes,ensure that the permit already contains the necessary condition related to high priority lines 15A NCAC
02T.0403 (a)(5). If the permit does not include this language,the Fast Track reviewer will reissue the permit with
the appropriate language.
8) Are Permit modifications are required for any changes resulting in non-compliance with this permit(including pipe
length difference of 10%or greater,change in flow,pump station design capacity design change of 5%or greater,and
change in the number/type of connections)? ❑ Yes ff No
• If yes, a permit modification request must be submitted to the appropriate Regional Office, and a modified
permit with revised certification must be issued prior to certification and operation.