WQ0042832_Additional Information Request_20211202

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
S. DANIEL SMITH
Director
NORTH CAROLINA
Environmental Quality
December 2, 2021
KENDRA D. PARRISH, PE — EXECUTIVE DIRECTOR OF UTILITIES AND INFRASTRUCTURE SERVICES
TOWN OF HOLLY SPRINGS
128 SOUTH MAIN STREET
HOLLY SPRINGS, NORTH CAROLINA 27540
Subject: Application No. WQ0042832
Additional Information Request
Oakview Innovation Park RWDL
Reclaimed Water Distribution
Wake County
Dear Ms. Parrish:
Division of Water Resources' Central and Regional staff has reviewed the application package
received September 20, 2021. However, additional information is required before the review may be
completed. Please address the items on the attached pages no later than the close of business on January 3,
2022.
Please be aware that you are responsible for meeting all requirements set forth in North Carolina
rules and regulations. Any oversights that occurred in the review of the subject application package are
still the Applicant's responsibility. In addition, any omissions made in responding to the outstanding items
in Sections A through I, or failure to provide the additional information on or before the above requested
date may result in your application being returned as incomplete.
Please reference the subject application number when providing the requested information. All
revised and/or additional documentation shall be signed, sealed and dated (where needed), with an
electronic copy submitted to my attention at the address below or the our upload site (URL:
hLtps://edocs.deg.nc.gov/Fonns/NonDischarge-Branch-Submittal-Form-Ver2).
If you have any questions regarding this request, please do not hesitate to contact me at (919) 707-
3660 or Lauren.Plummer(ancdenr.gov. Thank you for your cooperation.
Siymu .p.IY, bY:
,�e
goU�t f 4-`Mummer, Engineer III
Division of Water Resources
cc: Raleigh Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Blake Hall, PE — Timmons Group (Electronic Copy)
Permit Application File WQ0042832
E Q�� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617
NORTH CAROHNA -
oePemmencatE.W —rdalQuari /� 919.707.9000

Ms. Kendra D. Parrish, PE
December 2, 2021
Page 2 of 3
A. Cover Letter:
1. No comment.
B. Application Fee:
1. No comment.
C. RWPI 06-16 Application:
1. No comment.
D. RWDL 06-16 Application:
1. The table within Item V. lists the vertical separation from final earth grade (minimum cover) as 3
feet; however, the specifications require 4. Please review and revise as needed.
E. Property Ownership Documentation:
1. Within the provided Developer Certification of Ownership several deed pages were referenced.
Can you please provide copies of the recorded documents, including the certificate of ownership
and dedication of any easements related to the proposed work, for our records?
F. EnaineerinE Plans:
1. The profile views in the provided plan set depict callouts for a minimum cover of 36 inches for the
reclaimed water main. The provided specifications call for at least 48 inches (4 feet) of cover below
the finished subgrade. Please revise the plan call -outs to reflect the minimum cover required by
the specifications.
On Sheet C3.9, the storm drain crossings at Sta. 18+35, Sta. 19+50, and Sta. 19+80 are not depicted
in the profile view. A 15" RCP is depicted on the profile view near Sta. 20+20, but this feature is
absent from the plan view. The features on the profile appear to correspond to the proposed potable
water main and not the proposed reclaimed water main based on a review of the stations and
depicted features. Please review the reclaimed water main profiles and revise as needed, such that
the crossings occur at the correct locations along the reclaimed water main alignment.
3. The 8" reclaimed water main profile on Sheet C3.11 depicts a fire hydrant at Sta. 11+72. The plan
view does not appear to include a proposed hydrant; however, the potable water main has a
proposed hydrant near that location. Please review and revise as needed.
4. Detail drawings for the trenching/bedding, gate valves, and blow -off assemblies for the reclaimed
water main were not included in the provided plan set. Please provide detail drawings for the
proposed utility.

Ms. Kendra D. Parrish, PE
December 2, 2021
Page 3 of 3
G. Specifications:
1. No comment.
H. Enaineerina Calculations:
Calculations were not included within the provided submittal. Please provide engineering
calculations that meet the requirements of 15A NCAC 02U .0201(c). At minimum, the calculations
shall include the following items:
a. Justification for the required pip capacity, and details for how pipe sizes were determined.
b. Minimum velocities to be maintained in the reclaimed water line.
c. For connection to a force main, submit an evaluation of the existing force main based on peak
flows to the proposed project and peak flows already tributary to the existing force main.
I. Site May:
1. No comment.