HomeMy WebLinkAboutWQCS00009_NOV Response_20180530WATER & SEWER
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WSACC dm n st ative Offic sTMORITY
232 Davidson Hwy, Concord, NC 28027
704.786.1783 ♦ 704.795.1564 Fax
t� Rocky River Regional WWTP
V 6400 Breezy Lane, Concord, NC 28025
15014001:2015 • NC Star Public Seclor • OHSAS 0001:2007 704.788.4164 ♦ 704.786.1967 Fax
www.wsacc.org
May 30, 2018 RECEIVED/NCDENR/DWR
JUN 5 2018
CERTIFIED MAIL REQUEST
RETURN RECEIPT REQUESTED wOROS
MOORESVILLE REGIONAL OFFICE
W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ, MRO
610 East Center Avenue, Suite 301
Mooresville, NC 28115
Subject: NOTICE OF VIOLATION & INTENT TO ISSUE CIVIL PENALTY
NOV-2018-DV-0147
Collection System Permit No. WQCS0009
Dear Mr. Basinger:
The Water and Sewer Authority of Cabarrus County (WSACC) is in receipt of the subject NOV for sanitary
sewer overflows, with one being near 3600 NC Hwy 49 in Concord and the other near 2915 Stallings Road in
Harrisburg. Attached you will find a summary of background information and steps taken as a result of these
overflows.
WSACC will continue to monitor these area along with other areas throughout its system. WSACC will also
continue to be proactive in protecting its facilities and to take all steps possible to prevent future spills. If you
have any questions, I may be reached at 704-788-4164, ext. 113, 980-521-8164, or via email at
cvoncannonna.wsacc.org.
Sincerely,
Chad VonCannon,PE
Assistant Engineering Director
CV/bc
Attachment
cc: Tim Kiser, Engineering Director
Wayne Lyles, Interceptor Supervisor
Beverly Metcalf, EHS Compliance Manager
Michael Wilson, Executive Director
Page Two
NOTICE OF VIOLATION & INTENT TO ISSUE CIVIL PENALTY (NOV-2018-DV-0147)
Collection System Permit No. WQCS0009
May 30, 2018
OVERFLOWS - EVIDENCE AND JUSTIFICATION (SUMMARY)
Incident #201800560 - 3600 NC Hwy 49, Concord
1) The wastewater spill occurred due to the failure of an 8" ductile iron force main within a casing pipe under
a road crossing. This pipeline was installed in 1981 and has been in continuous operation for the past
37 years.
2) The spill was discovered by a member of the public and notification was received by the City of Concord.
Upon immediate investigation, the City of Concord turned off the City's pump station that feeds the line,
thus stopping the spill, and reported the issue to WSACC.
3) The pump station was turned off within 30 minutes of the spill being reported, thus greatly minimizing the
volume of wastewater spilled.
4) WSACC deployed several crews to the scene and excavated/located the pipe failure area. Once it was
determined that the pipe had failed within the road casing pipe, WSACC informed the City of Concord
that the force main could not be repaired that night; not until a contractor could be brought to the scene.
5) The City of Concord pumped and hauled from their pump station for two days before WSACC could
complete the repair.
6) WSACC brought in an outside contractor to complete the repair; once completed, WSACC notified the
City of Concord to turn on their pump station.
Incident #201800621 - 2915 Stallings Road, Harrisburg
1) The spill was the result of a survey rod that had somehow entered the sewer causing a clog in a manhole
that makes a 90 degree bend. The survey rod had allowed debris to build up to the point it stopped flow
through the 12" gravity PVC sewer.
2) The spill was discovered by the Town of Harrisburg's staff. Harrisburg and WSACC staff were able to
move quickly to jet out the blockage and remove the survey rod.
3) It is WSACC's belief that someone had either dropped or purposely placed the survey rod within the
wastewater collections system.