WQ0018755_Additional Information Request_20211104

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
S. DANIEL SMITH
Director
NORTH CAROLINA
Environmental Quality
November 4, 2021
MICHAEL A. MELTON — ENGINEERING MANAGER
AQUA NORTH CAROLINA, INC.
202 MACKENAN COURT
CARY, NORTH CAROLINA 27511
Subject
Dear Mr. Melton:
Application No. WQ0018755
Additional Information Request
Castle Bay WWTP
Reclaimed Water System
Pender County
Division of Water Resources' Central and Regional staff has reviewed the application package
received August 23, 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 December
6, 2021.
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 K, 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 our upload site (URL: https://edocs.deq.nc.gov/Forms/NonDischarg_e-
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.
SiyW erg.1 �d by:
,a w�,a n
a6°L4�lummer, Engineer III
Division of Water Resources
cc: Wilmington Regional Office, Water Quality Regional Operations Section (Electronic Copy)
James W. Holland, PE — McKim & Creed (Electronic Copy)
Permit Application File WQ0018755
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 -
oeaa�entote.Wro,memsiQuality r 919.707.9000

Mr. Michael A. Melton
November 4, 2021
Page 2 of 3
A. Cover Letter:
1. No comment.
B. Application Fee:
1. Not applicable.
C. Application:
1. Item IV. 1. was not completed. The proposed modification appears to extend towards the property
line within the setback distances required by 15A NCAC 02U .0701. Please update this table
accordingly and confirm that an existing setback waiver is recorded with the Pender County
Register of Deeds.
D. EngineerinE Plans:
1. Sheet M100 depicts an existing splitter box and manual screen. This is presumably the screen
described within the existing permit, and it is unclear whether this screen is to remain in service
upon completion of the proposed work. Please provide additional information.
E. Specifications:
1. A complete set of specifications are to be provided separate from the engineering plans pursuant to
15A NCAC 02T .0105. Specifications should include material and installation requirements for
proposed structures, piping, and all other appurtenances, at minimum. Specifications must be
signed, sealed, and dated by a North Carolina licensed Professional Engineer in good standing.
A project construction sequence was not provided, and it is unclear whether the proposed
modifications will impede the operation of the existing reclaimed water system. Please provide a
construction sequence and indicate which tasks (if any) will require bypassing or operations
shutdown.
F. Engineering Calculations:
1. The partial hydraulic loading calculations were not included in the uploaded submittal. Please
provide a copy of these calculations for our review.
G. Site Map:
1. No comment.

Mr. Michael A. Melton
November 4, 2021
Page 3 of 3
H. Power Reliability Plan:
1. The proposed modification will include additional components requiring power. Is the existing
power reliability plan (a 80 kW generator) sufficiently sized for the addition of the proposed
mechanical semi -cylindrical fine screen with wash -press? Please provide additional information.
I. Operation & Maintenance Plan:
1. An Operation & Maintenance (O&M) Plan was not provided within the submittal, and it is unclear
whether the existing plan includes spill control provisions and anticipated maintenance activities
related to the proposed modification. Please provide an updated O&M Plan that meets the
requirements of 15A NCAC 02U .0801.
J. Residuals Manaiement Plan:
1. Not applicable.
K. Additional Documentation:
➢ Certificate of Public Convenience and Necessity:
1. No comment.
➢ Existing Permit:
1. No comment.