WQCS00020_Notice of Violation_20230223 (2)

Please find additional information below for each of the two self-reported SSOs:
Incident Number 202201813 Edgewood Cir
• The SSO was not intentional.
• Cause: Inflow and Infiltration(heavy rain)
• Total Volume: 1058 gallons
• Total Volume Reaching Surface Waters: 1058 gallons
• Duration: The sewer overflow was reported on December 15, 2022 at 07:50am and ended at 08:20am. The
emergency response crew responded immediately. Once the flow subsided,the site was cleaned and pulverized
lime was applied. The total SSO duration time was 30 minutes.
• Impacts to Public Health: There were no known or reported impacts to public health.
• Fish Kills: There were no known or reported fish kills.
• Money Saved by Non-Compliance: No expense was saved by non-compliance.
• Actions Taken to Prevent Recurrence: In 2022,the City contracted with a consultant to study the Firestone
Sanitary Sewer Basin. As a result of the study,a relief sewer concept was identified to help reduce flow to
overloaded sections of the system. The City pursued American Recue Plan Act funds and was appropriated$4.4M
in the State budget for this project. A contract for design services was awarded in January 2023.
Incident Number 202300003 Echo Ln
• The SSO was not intentional. •
• Cause: Roots
• Total Volume: 720 gallons
• Total Volume Reaching Surface Waters: 720 gallons
• Duration: The sewer overflow was reported on December 30,2023 at 7:30pm and ended at 8:30pm. The
emergency response crew responded immediately,cleared and vacuumed debris and made necessary repairs.
After cleaning the site,pulverized lime was applied. The total SSO duration time was 60 minutes.
• Impacts to Public Health: There were no known or reported impacts to public health.
• Fish Kills: There were no known or reported fish kills.
• Money Saved by Non-Compliance: No expense was saved by non-compliance.
• Actions Taken to Prevent Recurrence: The line was thoroughly cleaned,inspected for damages, and will be added
to the annual root control service contract.
Although there were no identified fish kills, no known negative impacts to public health,and no closures of recreational
areas due to this self-reported SSO,TRU remains sensitive to environmental and public risks associated with SSOs and is
committed to protecting the environment and natural resources. TRU has an active inspection program and personnel
that is trained and certified to perform preventative and corrective maintenance to the utility system. The City is fortunate
to have various construction and specialized equipment,including jetter trailers,combination trucks,enhanced video
equipment/software,SL-Rat(acoustic testing program),and flow monitoring equipment. TRU crews cleaned over 14%of
wastewater collection system gravity sanitary sewer lines in 2022. The City's FOG program aggressively addresses grease
problems and we contract on a yearly basis for collection system root control services. We are proactive and continue to
make advancements to improve all programs relating to the care and maintenance of the wastewater collection system.
Thank you for consideration of the information provided herein. If I can provide any additional information,or if you have
any questions,please feel free to contact me via phone at(704)866-6728 or email me at [e-mail].
Sincerely,
Brian J tocki,PE
Assistant Director of Public Utilities
:r fir: cc: Joe Albright,Director of Public Utilities
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January 24,2023
Mr.Andrew H. Pitner, P.G.,Assistant Regional Supervisor
Water Quality Regional Operations Section
Mooresville Regional Office
Division of Water Resources, NCDEQ
610 East Center Avenue;Suite 301
Mooresville,NC 28115
RE: NOTICE OF VIOLATION&INTENT TO ISSUE CIVIL PENALTY
Tracking No.: NOV-2023-DV-0016
Sanitary Sewer Overflows—December 2022
Collection System Permit No.WQCS00017
Gastonia Collection System(Two Rivers Utilities)
Gaston County
Dear Mr. Pitner:
The City of Gastonia's Two Rivers Utilities(TRU) is in receipt of the referenced Notice of Violation related to the two self-
reported sanitary sewer overflows(SSOs)occurring in December 2022. The intent of this correspondence is to provide
additional information regarding the cause of the SSOs and actions taken to prevent recurrence of such events.
The two SSOs reported are identified below:
Total Total Volume I,
Incident Duration
Number Start Date (Mins) Location Volume Surface Water i
(Gals) (Gals)
1125 Edgewood Cir,
202201813 12/15/2022 30 1058 1058
Gastonia, NC 28052
1723 Echo Ln,
202300003 12/30/2022 60 720 720
Gastonia, NC 28052
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Remediah`actionsifinot already implemented, should be taken to correct the above noncompliance. Please submit ..
a written rldponse to thisl Notice of Violation. Your response is to be received by the regional office within 15
business dayslollowing receipt of this violation. Please include any additional documentation about this incident(s)
in the response. The submittal will be considered in determining whether the Division will assess a civil penalty fo
the cited violations.
If you have any questions, please do not hesitate to contact Joanna Harbison with the Water Quality Section in
the Mooresville Regional Office at 704-663-1699 or.via email at [e-mail] or
[e-mail]. .
Sincerely,
DocuSigned by:
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Andrew H. Pitner, P.G., Assistant Regional Supervisor
Water Quality Regional Operations Section
Mooresville Regional Office
Division of Water Resources, NCDEQ
Cc: Regional Office - WQS File
Central Files, Water Quality Section
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D E Q?) North Carolina Department of Environmental Quality I Division of Water Resources ;
fJJ�— Mooresville Regional Office l 610 East Center Avenue,Suite 301 I Mooresville.North Carolina 28115
aw= ��, 704.663.1699