WQ0033770_More Information (Received)_20210910

V4O) N W
OLD NORTH STATE WATER COMPANY
Po Box 10127
Birmingham, AL 35202-0127
Toll Free: 877-511-2911 Local: 205-326-3200
September 10, 2021
Ms. Vivian Zhong
Environmental Engineer
Division of Water Resources
North Carolina Department of Environmental Quality
Re: Application No. WQ0033770
Dear Ms. Zhong:
We received you letter dated August 11, 2021 requesting additional information prior to completing the review of the
above named application. Our response to your questions is as follows:
During the March 10, 2021 site visit, it was noted that the modification to Phase I specified in the
January 5, 2015 issued permit has not been constructed expect for the alum and Micro-C systems. The
existing bar screen is located afterthe EQbasin and has led to daily scrapping of the bar screen, constant
cleaning of the EQ basin, and solids escaping to the clarifier. The static fine screen with an auger and
dewatering press, permitted in the 2015 modification to alleviate this issue, was never installed. Please
provide a time frame for the unconstructed modification or an engineering certification if the
construction of the modification has been completed.
We have engaged Robert Graham, PE with George Finch/Roney and Associates as design engineer for
the Screen at Carolina Plantations. In consultation with our engineer Mr. Graham, we feel that a static
fine screen with an auger and dewatering press is not required to meet the screening needs of this
facility, and instead are working to fabricate a custom bar screen. The initial drawing is attached with a
description below. We are talking with contract fabricators to construct and install the screen. It is
estimated that the screen will be installed by first quarter 2022.
Old North State Water Company, LLC

Screen description
The trough would be X" steel and could be supported between the WWTP bulkheads with 3" steel
angles welded to the trough at each end to lap over the top of the bulkheads. Smaller steel angles could
be welded to the sides for stiffening if needed and to support a bar -grate walking surface for access to
the screens on one side. Handrails (not shown) would be needed around all sides of the walking surface
with chains or gates at each of the three screens and at the access point for the existing walkways.
Flow comes into the trough by adding two 6" 90-degree elbows to the existing influent pipe. A 6" hole
and pipe stub at the other end of the trough would allow the screened influent flow to drop into the EQ
tank.
2. It was stated in the additional information for Attachment F that the Permittee has no plan to expand the
150,000 GPD existing treatment facility. Please confirm that Phase II specified in current permit will not
be constructed and request that conditions and language pertaining to Phase 11 be removed from the
permit.
Old North State Water Company does not have any plans to expand the facility, but we do not know for
certainty that Phase II will not be needed at some point in the future. Therefore, we respectfully
decline to request Phase II be removed from the permit at this time.
Should you have additional questions or concerns, please do not hesitate to contact me at the number above or
[e-mail].
Sincerely,
11/L.
Managing Member
Old North State Water Company, LLC