WQ0024756_Correspondence_20220215

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
S. DANIEL SMITH
Director
FRED M. BUNN — MANAGER
FMB AT THE GROVE, LLC
2231 NASH STREET NW — SUITE D
WILSON, NORTH CAROLINA 27896
Dear Mr. Bunn:
NORTH CAROLINA
Environmental Quality
February 15, 2022
Subject: Permit No. WQ0024756
Conceptual Design Approval
The Grove WWTP
High -Rate Infiltration System
Carteret County
Division of Water Resources' Central and Regional staff has reviewed the application package
received June 7, 2021, and subsequent additional information received November 30, 2021, regarding the
proposal to construct a parking deck over the permitted high -rate infiltration drip field. During this
review and subsequent additional information request, it was noted that the design for this parking garage
was not finalized. Without a final design and supporting engineering material, a modification of the
permit to allow for the parking deck's construction will not be issued at this time.
At the Permittee's request, we are sending this formal correspondence to acknowledge that the
conceptual design of a parking deck over a high -rate infiltration field could be approved by the Division
in a minor modification, provided it meets the minimum requirements listed in the North Carolina
Administrative Code and General Statutes. This includes, but may not be limited to:
➢ Engineering plans for the system in accordance with 15A NCAC 02T .0704(c)(1) that address
the concerns listed in section B of the additional information letter dated September 3, 2021.
➢ Specifications in accordance with 15A NCAC 02T .0704(c)(1) describing the methods of
construction, materials to be used and means for ensuring quality and integrity of the
wastewater disposal system to address the concerns listed in section C of the additional
information letter dated September 3, 2021.
➢ A hydrogeological/geotechnical report in accordance with 15A NCAC 02T .0704(e) to
evaluate the impacts/interactions between the disposal system and the proposed structure that
address the concerns listed in section A of the additional information letter dated September
3, 2021.
➢ Demonstration that the field will comply with any setback listed in the permit, notably the 15-
foot setback to each building foundation.
➢ An updated Operation and Maintenance plan in accordance with 15A NCAC 02T .0707(a)
that addresses the concerns listed in section D of the additional information letter dated
September 3, 2021.
D QNorth Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 11617 Mail Service Center I Raleigh, North Carolina 27699-1617
ENORTH GAROLINA i
dew eM o� Emlmnmpndl nuaf� /`� 919.707,9000

Mr. Fred M. Bunn
February 15, 2022
Page 2 of 2
If the above information is provided and the design meets the requirements of 15A NCAC 02T
and 02L, the Division does not see a reason at this time to deny a permit modification for this proposal.
However, please note that this letter's issuance does not guarantee approval of a final design. If you have
any questions regarding this request, please do not hesitate to contact Erick Saunders at [phone] or
enckson. saunderskncdenr. gov.
Sincerely,
Nathaniel D. Thornburg, Branch Chic
Division of Water Resources
cc: Wilmington Regional Office, Water Quality Regional Operations Section (Electronic Copy)
Ronald D. Cullipher, PE — The Cullipher Group, P.A. (Electronic Copy)
Laserfiche File (Electronic Copy)