WQCS00025_NOI_NOV2022DV0128_Response_20220525

FR
Water Resources Division
146 N Church Street
PO Box i1o6
Asheboro, NC 27204-11o6
May 25, 2022
CITY OF .-
AsM:AOR0
NORTH CAROL INA
Mr. Lon T. Snider
NC Department of Environmental Quality
Division of Water Resources
450 Hanes Mill Rd
Suite 300
Winston-Salem, North Carolina 27105
Re: Response to Notice of Violation & Intent to Issue Civil Penalty
Tracking No.: NOV 2022-DV-0128
Dear Mr. Snider:
Tel: [phone] Ext. 258
Fax: [phone]
- NC Department of
Envlror�cr ily>� �uallty
MAY 2 7 2022
Winston-Salem
Reglonal Office'
This letter is written in response to the above referenced letter of correspondence from your office
for the sanitary sewer overflow (SSO) experienced on March 12, 2022, incident number
202200395. This SSO
The SSO at LS # 4, 577 Lexington Road, (Incident # 202200395) occurred due to inflow and
infiltration related to heavy rainfall over a short period of time. The City of Asheboro Water Plant
measured over 1.46" of rain in of a few hours. Maintenance staff responded to the alarm and
evaluated the site to monitor the flow. Laboratory sampling was conducted upstream and
downstream of the site and no environmental impact was measured. The City did a flow study
and smoke testing in this drainage basin in 2019. No major sources of I & I were identified. All
deficiencies identified by the smoke testing were repaired. Plans are to do more flow testing in
this basin when equipment is available.
The overall performance of the City of Asheboro sanitary sewer collection system is exemplary.
The 2021 System Performance reveals that of the more than 1.4 billion gallons of wastewater
treated at the City of Asheboro W WTP, less than 0.05% was spilled at the plant or in the collection
system. Laboratory personnel sample after every SSO as soon as it is safe to do so. None of the
laboratory results from any SSO on these two dates revealed significant environmental impact.
The City just completed a study of the collection system utilizing an AIA grant from NCDEQ
DWI. The final report identified several areas to address capacity issues due to wet weather flow.
Staff plans to update the Water Resources CIP in the coming months to incorporate the findings
of the final report.
The City of Asheboro is committed to protecting the environment and improving wastewater
collection service to customers. We are working from many angles to address issues that will
improve the operation of our collection system. Staff is continuing flow monitoring and will be
aggressive in locating potential I & I sources and making repairs. The Capital Improvement Plan
Home of the NC Zoological Park

JR

"Response to NOV & Intent to Issue Civil Penalty Tracking'No.: NOV 2022-DV-00128
5/25/2022
Page 2. of 2
provides future resources for studies, repairs and replacements to the wastewater collection and
treatment systems.
Please take these efforts into consideration as you deliberate this matter. The City requests
NCDEQ refrain from taking enforcement action as a result of this incident. The City of Asheboro
takes pride in being good stewards of the environment and is taking measures to ensure water
quality in our community. Thank you for your consideration in this matter. If you have any
questions, please contact me at [phone] ext. 258.
Sincerely,
Michael D. Rhoney, P.E.
Water Resources Director
QTy OF
ASHEBQR)
WATER RESOURCES'