NC0036269_Wastewater Annual Report 2021-22_20220708

City of Kannapolis
Wastewater Collections
System Annual Report
FISCAL YEAR 2021-2022

Why Do We Publish This Report?
On July 21, 1999, North Carolina Governor James
Hunt signed a law, House Bill 1160, requiring annual
reports from municipalities that operate wastewater
collection and treatment systems.
The annual reports inform system users of specific
items such as the number of wastewater overflows,
violations of permit conditions or environmental
regulations. It also requires we report the impact of
any such violations on the environment and
corrective measures taken to minimize recurrences.
We have decided to inform you, the system user, not
only of the required facts but of the stake each user
has in this function and what you can do to help
ensure its reliability.
The Treatment Process
The City of Kannapolis discharges its wastewater to
the Water and Sewer Authority of Cabarrus County's
(WSACC's) Rocky River Regional Wastewater
Treatment Plant located in southern Cabarrus
County.
The plant (NPDES Permit # NC0036269) has a
treatment capacity of 26.5-million gallons per day
(MGD) and uses a pure -oxygen activated sludge
secondary treatment system that processes both
domestic and industrial wastewater from both in -
plant and off -site sources.
The solids processing operation relies on a
combination of proven and cost effective
technology available for the solids handling process.
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The Wastewater Collection System
The City of Kannapolis's Wastewater Collection System was installed from the mid-1900's to the
present. The system consists of approximately 336 miles of sewer pipelines and fourteen
wastewater lift stations. The City of Kannapolis Public Works Department performs the
operation and maintenance of the collection system that serves approximately 19,000
customers.
During our reporting year, our crews provided maintenance service to the system and its
customers with professionalism and efficiency:
• The Maintenance crew cleans the City's sewer system to limit the number of wastewater
back-ups and overflows. A wastewater response crew responds to all calls related to
potential blockages, customer back-ups and overflows within the collection system.
• The Closed -Circuit TV Inspection crew uses a wheel -driven camera that records the
interior of wastewater pipes to identify defects, obstructions, check effectiveness of the
cleaning operations and inspects all new collection system extensions before the City
accepts them for operation and maintenance.
• The Pump Station crew maintains the City's fourteen wastewater lift stations. The crew
performed 728 routine inspections and responded to 48 alarms at the lift stations this year.
• The City's maintenance crew clears the wastewater collections system's outfalls within
rights -of -way and performs semi-annual inspections of the system.
• The City also has three Construction and Maintenance crews that install new service
connections, performs minor system expansions and provides repairs to existing
wastewater infrastructure.
Contract services are utilized for the installation of any major wastewater collection system
expansions, the replacement of aging deteriorating infrastructure, infrastructure inspections,
and some routine outfall maintenance.
The City of Kannapolis' Engineering Staff assists collection crews by providing additional
technical support to operations and periodic updates to system maps and construction
drawings.

The City of Kannapolis has several construction projects underway to further enhance
the level of service and quality of life to our citizens. In addition, we continually perform
proactive maintenance to the collection system to prevent wastewater overflows.
The following maintenance was completed:
Manholes raised & upgraded: 10
Repairs to laterals: 40
Sewer main repairs: 14
Lateral blockages, unblocked & rodded: 311
Closed-circuit camera inspection (linear feet): 37,756
Cleanouts installed: 8
Sewer mains cleaned (linear feet): 222,964
Cleanout caps installed: 22
Collection System Overflows
The City of Kannapolis investigated approximately 776 possible municipal and private wastewater
related back-ups and overflows during the fiscal year. The twelve incidents listed below resulted in a
spill or overflow of wastewater to the surface waters and were reported to the State. All locations were
hydraulically cleaned up and down stream, debris was removed (if any) and were video inspected. The
affected areas were flushed with fresh water, treated with lime, seeded, and straw was spread.
Incidents that were reported to the State: July 2021 - June 2022
8/11/2021: 1901 Concord Lake Rd.
8/25/2021: 2412 Forrestbrook Dr.
9/29/2021: 2137 Concord Lake rd.
10/14/2021: 1447 Rainbow Dr.
10/21/2021: 135 Johndy Ave.
12/14/2021: 1799 Concord Lake Rd.
12/16/2021: 314 West 12th. St.
12/31/2021: 612 East 12th. St.
1/13/2021: 1334 Washington Lane
3/10/2022 : HWY 3 @ Clifton St.
3/22/2022 : 178 Briarcliff Drive
6/28/2022 : 1901 Concord Lake Rd.
Pipe Failure Break (4500 Gallons)
Pump Station Equipment Failure (300 gallons)
Grease (70 Gallons)
Debris (300 Gallons)
Contractor Error (1140 Gallons)
Roots (150 Gallons)
Pipe Failure Break (240 Gallons)
Grease (600 Gallons)
Grease (25 Gallons)
Debris (162 Gallons)
Roots (25 Gallons)
Pump Station Equipment Failure (7200 Gallons)

PREVENTING WASTEWATER OVERFLOWS
• NEVER put oils, liquid or solid greases, fatty meat, or other food scraps down a drain - even if you
use a motorized garbage disposal.
• NEVER put down a drain feminine products, cotton swabs, matchsticks, convenience wipes such as
baby, hygienic, cleaning and disinfectant, as well as toilet bowl scrubbers and paper towels even if
labeled as "disposable or flushable".
• NEVER use hot water to melt grease so it will go down the drain easier.
• NEVER flush any of the items listed above down a toilet.
• ALWAYS keep grease out of wash water by wiping dishes with a disposable towel before washing.
• ALWAYS remove solidified grease from kitchen utensils, equipment, wares and food preparation
areas with scrapers or paper towels. Dispose of scrapings and towels in trash cans.
• ALWAYS allow hot liquid grease to solidify and then dispose of properly.
• ALWAYS place all food scraps in trash collection containers.
• ALWAYS recycle restaurant grease by using contract rendering services and have grease traps
cleaned and serviced frequently.
• REPORT trucks discharging liquids or other substances into open municipal sewer manholes.
• REPORT acts of vandalism on manholes, sewer lines, lift stations, hydrants and other structures.
• REPORT illegal dumping of toxic, corrosive, or flammable substances into manholes, drains, or
toilets.
REPORT INCIDENTS TO:
City of Kannapolis Customer Service
[phone]
PUBLISHED BY:
The City of Kannapolis Water Resources Department
1401 Bethpage Road
Kannapolis, NC 28081
Phone: [phone]
Fax: [phone]
Alex Anderson
Director of Water Resources
Copies of this report are available at the following locations:
Customer Service Center
Kannapolis City Hall
401 Laureate Way
Kannapolis, NC 28081
This report may also be viewed on the City's website at
www.kannapolisnc.gov
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.
.A Qer.f{,nc�ers o-n,
Alex Anderson, Director of Water Resources
July 8, 2022
Date