WQCS00253_Annual Performance_20220225

"PM
Carolina Water Service
lied of North Carolina'
February 24, 2022
NC DEQ—Water Quality Permitting Section
Attention: Central Files
512 N. Salisbury St. RECEIVED
Raleigh, North Carolina 27604 FEB 2 2022
NCDEQ/DWR/NPDES
2021 Annual Sewer Performance Reports
Enclosed are the 2021 Annual Sewer Performance Reports for the Carolina Water Service Inc. of North
Carolina wastewater systems that are required to comply with North Carolina General Statute 143-215.1C.
System NPDES Permit Collection System Permit
Bradfield Farms NC0064734 WQCS00253
Carolina Trace NC0038831 WQCS00217
Connestee Falls NC0024295 WQCS00219
Fairfield Harbour NC0033111 WQCS00162
Sugar Mountain NC0022900 WQCS00174
If you have any questions or require additional information, please do not hesitate to contact me at (704) 318-
3317 or [e-mail].
in S cerIey,
Brent Milliron
Regulatory Compliance Manager
Cc: Tony Konsul—Director of State Operations (West)
Dana Hill —Director of State Operations (East)

"IPAIA
Carolina Water Service
of North Carolina'
Wastewater Treatment and Collection
Performance Annual Report RECEIVED
,rE:B 25.2022
NCDEQIDWRINPDES
Bradfield Farms
NPDES: NC0064734
Collection System: WQCS00253
January 1, 2021 - December 31,2021
P.O. Box 240908 Phone: [phone]
Charlotte, NC 28224 https://www.myutility.us/carolinawaterservicenc

I. General Information
Service Area:
Bradfield Farms, Larkhaven, Peach Orchard Estates
Applicable Permits:
Type NPDES Permit Number Area Manager Phone
Wastewater Treatment Facility NC0064734 Mark Haver 800-525-7990
Collection System WQCS00253 Mark Haver 800-525-7990
Description of Collection and Treatment Systems:
The operation and maintenance of a wastewater collection system consisting of, at the time of permit
issuance, approximately 10.18 miles of gravity sewer, approximately 0.2 miles of force main, 3 duplex pump
stations, and all associated piping, valves, and appurtenances.
The operation of a 0.46 MGD wastewater treatment facility consisting of: an influent lift station, bar screen
and flow splitter box; two parallel 0.23 MGD plants consisting of: aerated equalization basin, aeration basins,
clarifiers, aerobic sludge digester, cloth filter membrane filters, UV disinfection, and flow meter.
Raw wastewater Treatment Process Flow Chart
I
Bar Screen
Cloth Filters
_-=-_ UV Disinfection
EqualizationAeration vir=;
Basin Clarifier
Basin
01 Treated
Return Activated Sludge Effluent
Discharge
v
Sludge Disposal
L7 <` Digester �—
oI-0-/
1. Liftstation—Pumps all incoming wastewater to the beginning of the treatment plant
2. Bar Screen—Removes larger debris that can potentially damage equipment such as rocks and sticks.
3. Equalization Basin—Allows for a steady and consistent flow of wastewater into the aeration basin to maximize treatment.
4. Aeration Basin—Air is circulated,and bacteria removes dissolved solids,pollutants,Phosphorus and Nitrogen.
5. Clarifier—Solids are separated from the liquid and piped back to the aeration basins via the return activated sludge piping.
6. Filters—Liquid is filtered to remove any remaining fine particles.
7. Disinfection—Effluent is disinfected by ultraviolet light to inactivate pathogenic organisms.
8. Solids Handling—Treats the solids removed from the wastewater to allow safe and economical disposal.

Summary of Collection System Performance.
During 2021, we collected and treated over 103 million gallons of wastewater. There were also no reportable
sanitary sewer overflows during the 2021 calendar year.
Key Performance:
• 6275 linear feet of sewer collection system was cleaned in 2021.
• The entire electrical system has been upgraded at the treatment plant in 2021. This improves the
resilience of our treatment equipment during extreme weather events as well as day-to-day
operations.
• There are 3 duplex Lift Stations serving the Bradfield Farms Subdivision. Each Lift Station is checked
two times a week with maintenance conducted as needed as well as emergency generator testing, wet
well cleanings, and emergency/routine repairs conducted periodically.
• All duplex Lift Stations are continuously monitored using a telemetry system that will notify our staff of
any issues 24/7.
• Annually, each Lift Station is inspected using our 56 Point safety checklist.
• As part of our Asset Management Program, an Annual Maintenance Checklist is conducted to
determine that equipment is performing at peak efficiencies.
• Our staff throughout the year manually conducts manhole inspections and documents deterioration (if
any) due to corrosive atmospheric conditions.
• We have instituted an infiltration and inflow (I&I) program. The purpose of the I&I program is to keep
unwanted storm water from entering the collection system. Infiltration and inflow is a clear indicator
that there could be broken pipes, uncovered sewer laterals, or someone illegally connected to the
collection system.
• As a proactive measure, we educate our customers of our concerns of Fats, Oil, and Grease. Your help
in what is put down the drain greatly prevents clogs due to grease buildups and improves our overall
collection system. These grease buildups can result in SSO's.
• Our staff is continually monitoring and clearing rights of way (ROW's). These ROW's normally are in low
lying creeks and wooded areas. ROW's need to be kept cleared to ensure easy access during
emergency situations.
Summary of Wastewater Facility Performance:
It is our goal and standard at Carolina Water Service of North Carolina to meet 100% of our NPDES permit
discharge limits. We evaluate our treatment processes daily to ensure that goal is obtained. Our permit
requires us to continually monitor the effluent to determine if the treatment processes are working
effectively. This monitoring consists of sampling at various point in the treatment process. These samples
include: Flow measurement of how much wastewater enters and then is discharged from our plant,
Biochemical Oxygen Demand (BOD), Fecal Coliform, Total Ammonia-Nitrogen, Total Nitrogen, pH, Total
Phosphorus, Total Suspended Solids, Dissolved Oxygen, and Temperature.
A minimum of 997 compliance samples are conducted on an annual basis.

Our staff is committed to a standard of excellence by ensuring a safe and clean facility while maintaining
regulatory compliance. No known adverse effects have been noted on the environment or receiving stream.
II. 2021 Violation Summary
January No violations/deficiencies.
February No violations/deficiencies.
March No violations/deficiencies.
April No violations/deficiencies.
May No violations/deficiencies.
June No violations/deficiencies.
July No violations/deficiencies.
August No violations/deficiencies.
September No violations/deficiencies.
October No violations/deficiencies.
November No violations/deficiencies.
December No violations/deficiencies.
III. Notification
Customers will be notified of the availability of this report with a message on their bills and copies will be
provided upon request.
IV. Certification
I hereby certify that the information contained in this report is accurate and complete to the best of my
knowledge.
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Signature:Tony Konsul, A � Date: 02/22/2022
Name: Tony Konsul Title: Director,State Operations