WQCS00006_NOI_NOV2020DV0346_Response_20200826

GREENSBORO
NORTH CAROTIN•
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EnvironQua
August 26, 2020 Received
SEP 02 2020
Lon T. Snider, Assistant Regional Supervisor Winston-Salem
Water Quality Regional Operations
450 West Hanes Mill Road, Suite 300 Regional Office
Winston-Salem, North Carolina 27105
Dear Mr. Snider,
This letter is in response to the Notice of Violation and Recommendation for Enforcement Letter
dated August 26, 2020 received by the City of Greensboro. The address where the violation
occurred and the amount spilled is shown below:
1. 1619 Stanley Rd. 3500 Gallons 20 2 6
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The sanitary sewer release at 1619 Stanley Rd. was due to an accumulation of debris in the
sanitary sewer at this address. We dispatched a combination jet truck to remediate the blockage
and clean the line. Once we remediated the sanitary sewer overflow, we thoroughly cleaned all
the sanitary pipes in the area. After an inspection, we found the sanitary lines partially blocked
with tuberculation, causing the line to backup and surcharge, ultimately causing the sanitary
sewer release. Due to the heavy corrosion, we had trouble unstopping and cleaning the sanitary
pipes, and that is the reason for the long event duration. The lines are now undergoing extensive
rehabilation, including replacing 680 feet of sewer main under I-40, two stream crossings and
lining 430 feet of existing line. Based on our CCTV investigation, these repairs should alleviate
all restrictions and corrosion in this section of the collection system. We are confident with this
extensive rehabilitation that any repeat SSOs can be avoided. The rehabilitation work is
scheduled to be completed by mid -September.
Remediation efforts include opening fire hydrants to flush the affected area.
It is our duty to comply with the requirements of Collection System Permit Number WQCS00006
and G.S. 143-215.1(a)(1), and we will continue to address unforeseen circumstances as quickly
as they occur. If any additional information is required, please do contact me. We appreciate
your review and welcome your feedback.
Sincerelyyours, /
Robert Martin, Construction and Maintenance Supervisor
PO BOX 3136 • GREENSBORO NC 27402-3136 • WWW.GREENSBORO-NC.GOV • 336-373-CITY (2489)
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GREENSBORO
NORTH CAROLINA
cc: Adam Conn, Operations Manager
Patrick Smith, Utilities Maintenance Superintendent
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PO BOX 3136 • GREENSBORO NC 27402-3136 • WWW.GREENSBORO-NC.GOV • 336-373-CITY (2489)
640

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