NC0023736_Annual Report_20221107

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CITY MANAGER MAYOR
SCOTT E.HILDEBRAN CITY OF LENOIR JOSEPH L.GIBBONS
NORTH CAROLINA CITY COUNCIL
J.T.BEAL
F.KENT GREER
T.H.PERDUE
J.I.PERKINS
R.S.PRESTWOOD
D.F.STEVENS
October 31, 2022 C.D.THOMAS
System Performance Annual Report RECEIVED
North Carolina Division of Water Quality
1617 Mail Service Center NOV 0 7 2022
Raleigh,North Carolina 27699-1617 NCDEQlDWRlNPDE
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To whom it may concern:
Please find enclosed three(3)copies of the annual system performance report for the City
of Lenoir wastewater collection and treatment system covering the fiscal year beginning
July 1, 2021, and ending June 30, 2022. As noted in the report, this document has been
made available through placement in public buildings, release to the press, and via the
city's website.
If you have questions or require additional information,please contact me at the Lenoir
Utilities Department. I will be happy to assist you.
Thank you.
Sincerely,
`��
Rad ord L. Thomas
Director of Public Services
City of Lenoir
Enclosures
Cc: Mr. Scott E. Hildebran, City Manager, City of Lenoir
Lenoir Lenoir
II I�i'� POST OFFICE BOX 958 • LENOIR, NORTH CAROLINA 28645-0958 • [phone] TIP"
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CITY OF LENOIR, NORTH CAROLINA
LENOIR
PUBLIC UTILITIES 0
ANNUAL PERFORMANCE REPORT
of the
WASTEWATER COLLECTION SYSTEM
and the
WASTEWATER TREATMENT FACILITIES
(This report has been produced to make available information
concerning the performance of the City of Lenoir wastewater
collection system and treatment facilities during the fiscal year
beginning on July 1, 2021 and ending on June 30, 2022)

WASTEWATER COLLECTION SYSTEM
(Collection System Performance)
General Information
Facility Name: City of Lenoir Wastewater Collection System
Responsible Entity: City of Lenoir
Person in Charge: Richard Williams, ORC
Applicable Permits: WQCS00035
The City of Lenoir wastewater collection system consists of approximately 209 miles of
sewer line and 16 pump stations. A radio signal monitoring and control system has been
installed in the pump stations. This system notifies personnel of any pump station
problems that may occur.
Two spills from the collection system reached surface waters during the fiscal year. In
accordance with state regulations, the spills were reported to the North Carolina
Department of Environmental Quality - Division of Water Quality -Asheville Regional
Office. Pertinent information concerning the spills follows:
1. 09/29/21 Grease and debris caused an overflow of 2,300 gallons at a manhole off of
Harper Avenue in Lenoir. The main was cleared and cleaned and flow was
restored.
2. 06/28/22 Vandalism caused an overflow or 500 gallons at a manhole off of Legion
Road in Hudson. The blockage was removed and the flow was restored.

WASTEWATER TREATMENT FACILITIES
(Lower Creek Wastewater Treatment Plant Performance)
II. General Information
Facility Name: Lower Creek Wastewater Treatment Plant
Responsible Entity: City of Lenoir
Person in Charge: Elisa Triplett, Superintendent
Donnie Hawkins, ORC/Asst. Supt.
Applicable Permits: NPDES Permit #: NC0023981
Class A Residuals Permit #: WQ0010059
The Lower Creek Wastewater Treatment Plant is monitored for the following parameters:
pH, Residual Chlorine, Fecal Coliform, Biochemical Oxygen Demand (BOD), Total Suspended
Solids (TSS), Ammonia as N (all have permit limits); Temperature, Conductivity, Dissolved
Oxygen, Total Nitrogen, Total Phosphorous; Total Cyanide, eleven metals (Cadmium has permit
limit), and Chronic Bioassay.
In addition, an extensive Priority Pollutant Analysis is conducted during most years, which
includes a full range of organic compounds, expanded metals and various other parameters.
Total influent flow for the period of July 1, 2021 to June 30, 2022 was 771,170,000 gallons. The
average flow during this period was 2.12 MGD.
For the period of July 1, 2021 to June 30, 2022, there were zero (0) permit condition violations
and zero (0) permit violation of effluent limits.
The annual removal efficiencies (from July 1, 2021 to June 30, 2022) for the plant are listed
below:
BOD: 98.4 % TSS: 95.8% Ammonia as N: 98.8%
Class A biosolids production resumed July 2021 using the newly constructed and installed
biosolids facitlity at the Lower Creek WWTP. The new belt press and Gryphon gas dryer are
dewatering and drying the sludge produced at the facility as well as sludge that is hauled from
the Water Treatment plant and the Gunpowder Creek WWTP. 154 MG sludge was dewatered
July 1, 2021 — June 30, 2022, with an average of 2.05% solids the amount of sludge is
equivalent to 767 dry tons.
There were no wastewater spills within the plant during the period.

WASTEWATER TREATMENT FACILITIES
(Gunpowder Creek Wastewater Treatment Plant
Performance)
III. General Information
Facility Name: Gunpowder Creek Wastewater
Treatment Plant
Responsible Entity: City of Lenoir
Person in Charge: Elisa Triplett, Superintendent
Donnie Hawkins, ORC/Asst. Supt.
Applicable Permit: NPDES Permit #: NC0023736
The Gunpowder Creek Wastewater Treatment Plant is monitored for the following parameters:
pH, Residual Chlorine, Fecal Coliform, Biochemical Oxygen Demand (BOD), Total Suspended
Solids (TSS), Ammonia as N (all have permit limits); Temperature, Conductivity, Dissolved
Oxygen, Total Nitrogen, Total Phosphorous; Total Cyanide (has permit limit), eleven metals
(Cadmium has permit limit) and Chronic Bioassay.
In addition, an extensive Priority Pollutant Analysis is conducted during most years, which
includes a full range of organic compounds, expanded metals and various other parameters.
Total influent flow for the period of July 1, 2021 to June 30, 2022 was 413,530,000 gallons. The
average flow during this period was 1.13 MGD.
For the period of July 1, 2021 to June 30, 2022, there were zero (0) permit condition violation
and zero (1) permit violations of effluent limits.
Permit limit for Cu is 18.8 ug/I daily maximum and 15.4 ug/I monthly average.
The month of July 2021 the plant experienced a 16.2 ug/I monthly average for Cu.
The facility is under a 3-year compliance schedule to help the plant to get the Cu coming into
the plant reduced to meet the permit requirements on Cu.
The annual removal efficiencies (July 1, 2021 to June 30, 2022) for the plant are listed below:
BOD: 96.9 % TSS: 95.3 % Ammonia as N: 97.3%
There were no wastewater spills within the plant during the period.
1

IV. Summary
During the 2021-2022 fiscal year the City of Lenoir Wastewater System treated
1,184,700,000 gallons of wastewater with reportable spills totaling only 2,800 gallons.
V. Notification
Copies of this report have been placed in public buildings throughout the Lenoir and
Hudson area including: Lenoir and Hudson Municipal Buildings, the Caldwell County
Libraries, the Caldwell County Chamber of Commerce and the Caldwell County Offices
and is also available on the city web site at www.cityoflenoir.com. Notification of
availability of this report has also been made through the local press.
VI. 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 the users or
customers of the named system and that those users have been notified of its availability.
-/d 3a -7‘,3)
Ric and Wi Hams Date
ORC—Wastewater Collection
System
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2-7 - 2-2
Donnie Hawkins Date
ORC — Wastewater Treatment
Contact Persons:
Richard Williams- ORC, Wastewater Collection [phone]
Donnie Hawkins—ORC, Wastewater Treatment(828) 757-4462
Lisa Triplett—Superintendent, Wastewater Treatment Plants [phone]
Derek Goble-Superintendent, Water Dist./Wastewater Collection [phone]
Radford L. Thomas-Director Public Services [phone]