WQ0029653_Notice of Violation_20230412

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LI SentTc MONROE NC 28111-0069
3 -Street u ATTN:BRIAN BORNE,CITY MANAGER
City,St dwr/jh 4/12/23

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CITY OF MONROE
PO BOX 69
MONROE NC 28111-0069 APR .o23
ATTN:BRIAN BORNE,CITY MANAGER /
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FILE
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ROY COOPER 4 t,-
Governor Ki / ��"ELIZABETH S.BISER "�^�•'ti
Secretary
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
Certified Mail # 7022 0410 0000 7789 4704
Return Receipt Requested
April 12, 2023
Brian J Borne, City Manager
City of Monroe
PO Box 69
Monroe, NC 28111-0069
SUBJECT: NOTICE OF VIOLATION
Tracking Number: NOV-2023-DV-0167
Sanitary Sewer Overflows - March 2023
Collection System Permit No. WQCS00026
Monroe Collection System
Union County
Dear Mr. Borne:
The self-reported Sanitary Sewer Overflow (SSO) 5-Day Report submitted by City of Monroe indicates violations of
permit conditions stipulated in the subject permit and North Carolina G.S. 143-215.1. Violations include failing to
effectively manage, maintain, and operate the subject collection system so that there is no SSO to the land or
surface waters and making an outlet to waters of the State for purposes of G.S. 143-215.1(a)(1), for which a
permit is required.
Specific incident(s) cited in the subject report include the following:
Total Vol
Total Surface
Incident Start Duration Vol Water
Number Date (Mins) Location Cause (Gals) (Gals) DWR Action
202300555 3/26/2023 61 2925 Secrest Shortcut Grease 660 660 Notice of Violation
Rd, Monroe, NC,
28110
wE 5 North Carolina Department of Environmental Quality I oDivision of Water Resources
f�r_■' Mooresville Regional O(fke 6f0 East Center Avenue.Suite 301 1 Mooresville.North Carolina 28115
o..:,..N.:�44.ft 704 663.1699

Remedial actions, if not already implemented, should be taken to correct the above noncompliance. Please submit
a written response to this Notice of Violation. Your response is to be received by the regional office within 15
business days following 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 for
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].
Sincerely,
DocuSigned by.
Woo Buell
`—A6169€D?)CC 3437
for Andrew Pitner, Acting 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
V� North Carolina Department of Environmental Quality I Division of Water Resources
Q?v Mooresville Regional Office b10 East Center.Mmue.Suite 301 Moate svdk.North Carolina am
is
-....�.. 704 n63.Ib99

RECEIVED/NCDEO/DWR
APR 2 4 2023
City of !' Ich® WQR
� ><1AOORESVILLE REGIONAL OFFICE
Water Resources monroenc.org • 704-282-4601 • PO Box 69, Monroe, NC 28111
April 19, 2023
Mr. Andrew H. Pitner
Assistant Regional Supervisor
Water Quality Regional Operations Section
NCDEQ
Mooresville Regional Office
610 East Center Avenue, Suite 301
Mooresville,NC 28115
Subject: Response to Notice of Violation
Tracking#NOV-2023-DV-0167
Sanitary Sewer Overflow- March 2023
Collection System Permit No. WQCS00026
Monroe Collection System
Union County
Dear Mr. Pitner,
This letter is in response to the NC Department of Environmental Quality(NCDEQ)Notice of
Violation, the letter dated April 12, 2023 and received by City of Monroe Water Resources on April
14th,2023.
NCDEQ identified the following Sanitary Sewer Overflow(SSO)on March 26th,2023 as ineffectively
managing, and maintaining the collections system. In response the City of Monroe is providing the
following evidence that the SSO was unintentional and that the overflow was beyond our reasonable
control of our operations and that compliance with our collections system permit remains our utmost
responsibility.
Incident#202300555 occurred on an off-street easement in a new subdivision. This specific line had
never been cleaned, as it is part of a new subdivision named Veronica Springs, still under construction
and under warranty, as noted in the 5-day BIMS report. It was noted when staff was on-site that there
was a significant amount of FOG (Fats, Oil, and Grease) found in the line which exits the subdivision on
an off-street easement area,the lids in the area are to be water tight and in this case it was not.
Upon identifying the area and checking an elevated upstream manhole that was surcharged it was
determined, where the blockage was located. When cleaning the line to remove the blockage, staff
determined that the spill was a result of grease that caused the blockage on the sewer main. Our staff
was onsite for the duration of the spill to monitor any changes and when the spill stopped. Once the
spill was stopped, the affected area was treated with lime as noted in the BIMS report.

Mr. Andrew H. Pitner
NCDEQ
April 19,2023
Page 2
We also notified the City of Monroe Storm Water Division as well as the City of Monroe Water
Treatment Plant of the spill as indicated in the BIM's report.
The City of Monroe Water Resources Engineering staff and Maintenance Staff are developing a plan to
prevent future spills in the area. We have since CCTV'd the sewer main, identified debris in the line,
and cleaned multiple segments. We will have the entire subdivision cleaned due to contractors leaving
debris in the line when taps were being installed.
The SSO was not within reasonable control of the permittee; the SSO could not have been prevented by
the exercise of reasonable control, such as proper management, preventive maintenance. The permittee
followed all City of Monroe Sanitary Sewer Overflow Response Plan(SSOP)procedures.
The City of Monroe meets and exceeds the 10% cleaning goal each year with various methods including
pipe bursting, CIPP,basin cleaning, CCTV and cleaning. The City of Monroe has staff available 24
hours a day 7 days per week with anticipated response time of less the 45 minutes to respond to any
given call. This helps us to reduce the impact and duration of sewer spills. In addition, contractors are
utilized for emergency situations.
The City of Monroe is respectively requesting that no civil penalties be applied to the above SSO that
occurred during the month of March 2023, due to the above factors being satisfied and evidence
showing that the overflow was not expected to occur.
If you have any questions or require further information,please contact me at phone number 704-282-
4610 or via email at [e-mail]
Sincerely,
Chuck Derrick
Maintenance Superintendent/ORC
Water Resources Department
City of Monroe
Attachment: D Q OV letter
Area Map of SSO