WQCS00275_Request for Residential Flow Reduction Transfer_20240926

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ONWASA
North Carolina Department of Environmental Quality onwasa corn
Division of Water Resources 228 Georgetown Rd
Jacksonville. NC 28540
Water Quality Permitting Section—PERCS Unit RECEIVED
1617 Mail Service Center
Raleigh,North Carolina 27699-1636
SEP 26 2024
Re: Request for Residential Flow Reduction Transfer
North Topsail Beach& Sneads Ferry Collection System (WQCS00275)NCDEQlDWRJNPDES
Onslow County
DWR Permitting Staff:
Please find attached a copy of the Residential Flow Reduction Approval letter issued to Pluris,
LLC on January 11, 2023, for residential single-family dwellings in the North Topsail Beach and
Sneads Ferry Collection System service area. As ONWASA was granted transfer of ownership
by NCDEQ of the Collection System Permit, WQCS00275, we also hereby request the transfer
of flow reduction to 65 gallons per day per bedroom that applies to the permit. We understand
the following conditions listed on the original approval will also apply to ONWASA:
• The flow reduction is applicable to residential single-family dwellings only.
• The minimum flow for 1- and 2-bedroom dwellings shall be 130 gallons per day
• Each additional bedroom above two bedrooms shall increase the volume by 65 gallons
per day per bedroom.
• The flow reduction shall not apply to sewer extension applications and/or permits for any
other public or private organizations whose wastewater flows are or might be tributary to
the North Topsail Beach& Sneads Ferry collection system covered by permit
WQCS00275.
As this flow reduction applies to the system-wide collections permit that includes permit
WQ0034483,North Topsail Beach Consolidated Sewer Basin, that was also transferred to
ONWASA on January 22, 2024, we find we need to request clarification on the applicability of
the flow reduction to the facilities located on North Topsail Beach Island. Although inclusive of
this permit, we received conflicting information indicated standard flow rates need to be applied
to Island permits.
Your assistance with both the transfer of the flow reduction and understanding the flow
reductions required for North Topsail Beach Island is appreciated.
Sincerely,
e y Lohr, PE, Assoc. DBIA
Chief of Engineering
Onslow Water and Sewer Authority
Encl. Pluris, LLC Residential Flow Reduction Approval

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DocuSipn Envelope ID:24883D76-69A7-4118-BB9B-4CAE3909067A
ROY COOPER t --F'
Governor Or
ELIZABETH S.BISER
Secretary
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
January 11, 2023
Mr. Maurice Gallarda, P.E., Managing Member
Pluris, LLC
5950 Berkshire Lane, Suite 800
Dallas, TX 75225
Subject: Residential Flow Reduction Approval
North Topsail Beach & Sneads Ferry Collection System(WQCS00275)
Pluris, LLC
Onslow County
Dear Mr. Gallarda:
On December 10, 2022, the Division of Water Resources (Division) received a request for an
adjusted daily sewage flow rate (flow reduction)that would apply to all permitted but not yet
tributary residential connections and all future residential connections within the North Topsail
Beach& Sneads Ferry Collection System service area.
In accordance with 15A NCAC 02T .0114(f)(2), the Division has evaluated the request, and
based on the data submitted, the Division hereby approves for use by Pluris, LLC an adjusted
daily sewage design flow rate with the following conditions:
• The flow reduction is applicable to residential single-family dwellings only.
• The minimum flow for 1- and 2-bedroom dwellings shall be 130 gallons per day.
• Each additional bedroom above two bedrooms shall increase the volume by 65 gallons
per day per bedroom.
• This flow reduction shall not apply to sewer extension applications and/or permits for any
other public or private organizations whose wastewater flows are or might become
tributary to the North Topsail Beach & Sneads Ferry collection system(WQCS00275).
Future sewer extension applications should be made using the flow reduction amount stated
above. All other aspects of the permitting process remain unchanged, and all applications must
be in compliance with the statutes, rules, regulations and minimum design criteria as certified by
the owner and engineer.
Regardless of the adjusted design daily wastewater flow rate, at no time shall the wastewater
flows exceed the effluent limits defined in the permit for the treatment facility or exceed the
capacity of the sewers downstream of any new sewer extension or service connection(s).
D North Carolina Department of Ens uonnrntal Quality I Dnision of Water Resources
512 North Salisbury Street 1161 I Mail Service Center i Ralet K North Carolina 27fA9-161 I
ei r,,,;,-t„-,;00.01„0� 919 707.9000

DocuSign Envelope ID:24683D76-69A7-4118-BB9B-4CAE3909067A
In accordance with 15A NCAC 02T .0114(f), the Division periodically requires reassessment of
wastewater flow data associated with the collection system or the receiving wastewater treatment
plant as applicable to confirm the suitability of the approved flow reduction value. Pluris. LLC
shall submit documented.representative data in accordance with 15A NCAC 02T ,0114(f)(1)(A-
H)prior to August 31,2029. Failure to submit the required data by this date will result in this
flow reduction approval letter becoming null and void. Upon review of the data, the Division
shall either reapprove, modify or not grant reapproval for the previously approved flow reduction
value.
The granting of this flow reduction does not prohibit the Division from reopening, revoking,
reissuing and/or modifying the flow reduction as allowed by the laws, rules, and regulations
contained in 15A NCAC 02T, NCGS 143-215.1, or as needed to address changes in State and/or
Federal regulations with respect to wastewater collection systems,protection of surface waters,
and/or wastewater treatment.
If you have any questions, please contact Charlie Miller, P.E. at(919) 707-3627 or by email at
[e-mail].
Sincerely,
DocuSipned by:
L !d&4L
C464531431844FE..
for Richard E. Rogers,Jr.
Director, Division of Water Resources
by Michael Montebello
NPDES Branch Chief, Division of Water Resources, DEQ
CC: Michael Gallant, P.E., Michael C. Gallant P.E., P.A. (gallantmc@a yahoo.com)
Wilmington Regional Office, Water Quality Regional Operations
Municipal Permitting Unit(electronic copy)
D North Carolina Dephur Street
11611of Environmental
queen I I n o Wat arolmaResourc27
512 North Sahsburc 116l 1 Mail Service Cemcr I Raleigh.North Carolina?7699-1611
919.707.9000