NC0020028_Performance Report_20230120

JAN 2 0 2023
Water Quaitty
Regional Operations section
Washington Regional Office
Wastewater Treatment System
Annual Performance Report
Town of Plymouth, NC
NPDES # NC0020028
NCDWQ# WQCS00141
2022
Wastewater Treatment System Annual Performance Report 2022
Page 1

I. General Information
Facility/System Name: Town of Plymouth
Responsible Entity: Town of Plymouth
Person in Charge/Contact: Roland O. Coburn
Wastewater Treatment Plant Operator Grade III
License number: 1003650
252-661-1465
Bryan J. Brooks
Collections Operator Grade II
License number: 1011104
252-799-7602
Applicable Permit(s): Wastewater Treatment Plant:
NPDES NC0020028
Expires May 31, 2022
Collection System:
NC Division of Water Quality
WQCS00141
Expires November 30, 2025
II. Description of Collection System or Treatment Process
The Town of Plymouth operates a 0.8 MGD activated sludge wastewater treatment
plant and discharges its effluent to the Roanoke River. Wastewater is collected in
approximately 27 miles of 8" and 12" diameter sewer lines and pumped where
necessary via 18 lift stations to the treatment plant. The oldest available records
indicate that the original parts of the system were constructed in 1915. Up until the
late 1960s when the first lift stations were built, raw sewage was simply piped
directly to the most convenient water body; Conaby Creek and the Roanoke River.
The wastewater treatment plant was originally constructed in 1967 and consists of a
grit removal system, fine -mesh bar screen and extended aeration basin, the solids are
settled in two secondary clarifiers operated in parallel. Excess sludge is aerobically
digested, thickened, and then applied in liquid form to pasture land in Washington
County; thus recycling the nutrients back to the soil.
Wastewater Treatment System Annual Performance Report 2022
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III. Performance
For the report period of January 2022 through December of 2022, the Town of
Plymouth's Wastewater Treatment Plant processed approximately 124.4 million
gallons of wastewater collected from approximately 1,510 dischargers to our system.
Collections System:
For 2022, 2300 feet of sewer lines were flushed.
Power washed and cleaned out Jefferson Street lift station.
Installed 1 new pump at Johnson Court lift station.
Installed 1 new pump at Jefferson Street lift station.
Replaced 15ft of sewer pipe at Winesett Circle and 5ft at Harvey Court.
WWTP (Wastewater Treatment Plant):
A new lift station was installed to handle the water from the grit system and return it to
the headworks instead of Digester 3. One of this lift station's pumps has been
replaced as well as the float switches and several control panel components.
The aerator motor for Digester 2 was replaced.
One of the floating aerators in the Aeration Basin has been replaced.
Had an inspection from the State's Laboratory Certification Branch. Updated our lab
procedures and records keeping per inspector's recommendations. Trained all Back
Up ORC's in proper procedures for testing pH & Temperature.
Turned in peiruit renewal paperwork to the state.
The Town of Plymouth is dedicated to improving our wastewater system and keeping
the maintenance cost down, but these things require your help.
You can help by:
• Reporting illegal connections of sump pumps and roof drains into the system;
• Reporting broken cleanout caps; and
• Disposing fats, oils, and grease (known as FOG) by scraping grease from
cookware and wiping with paper towels prior to washing. When fatty liquids
are washed down sinks and/or flushed down toilets, it may cause sewer
blockages that sometimes cause spills. Just practicing these few techniques,
not only will help to reduce the Town's maintenance cost, but also could save
you money by keeping you from having to call a plumber to unclog your
sewer line.
If you have any questions about this report or how you can help, please call the Public
Works Depot fluent at 793-1169.
Wastewater Treatment System Annual Performance Report 2022
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IV. Notification
As advertised in the January 18, 2023 edition of The Roanoke Beacon, a copy of this
report will be printed and will be available at Town Hall on Water Street.
V. Certification
I certify under penalty of law that this report is complete and accurate to the best of
my knowledge. I further certify that this report has been made available to users or
customers of the named system and that those users have been notified of its
availability.
—�a-)3
Roland O. Coburn Date
Wastewater Treatment Plant Operator
Town of Plymouth
Banks
Collections System Operator
Town of Plymouth
NOTICE
Date
The Clean Water Act requires those entities that own or operate wastewater
treatment and collection systems to create an "Annual Report" that summaries the
system's perfoiiizance over a 12 month period.
In accordance with that law, please note that the required report for the Town of
Plymouth will be published and copies will be available at Town of Plymouth, 124
East Water Street.
Wastewater Treatment System Annual Performance Report 2022
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