WQCS00057_NOI_NOV2021DV0410_Response_20211015

City of Thomasville
Thomasville, North Carolina 27360
Lon T. Snider
Regional Supervisor
WQROS, WSRO, DWQ, NCDEQ
450 W. Hanes Mill Road, Suite 300
Winston-Salem, NC 27105
RE: Intent to Enforce Letter Response
Incident Number 2202101583
Dear Mr. Snider,
NC Department of
Environmental Quality
Received
OCT 18 2021
Winston-Salem
Regional Office
Utilities Department
October 15, 2021
In response to the letter of Intent to Enforce of October 4, 2021 the City of Thomasville asks
that the following be taken into consideration:
Regarding incident» 202101583: As stated in the 5-day report there was a deluge of precipitation that
ended approximately 45 minutes before this event began. This deluge followed precipitation that
totaled 2.16 inches between 8:30 pm and 4:45 am the night before. This volume of precipitation
overwhelmed the collection system leading into the pump station via inflow and abated in about the
same time span as it took the deluge to fall. Included is a spread sheet that visually represents the
conditions described above which I find make it easier to understand. There is an existing project to
address I&I in the South Hamby Creek Outfall area which leads into this pump station in the city's
adopted Capital Improvement Plan.
The above statements are to share with you that the City of Thomasville continues our efforts to
address the issues that led to this spill and to help prevent recurrences of same by attempting to locate
and eliminate sources of I&I as well as engineer design upgrades to the collection system. The City of
Thomasville has spent and will continue to spend millions of dollars to protect the environment by
identifying and correcting deficiencies in the collection system. The City of Thomasville asks that the
ongoing efforts to upgrade this area of the sanitary sewer collection system be taken into account with
any enforcement actions considered.
Sincerely, Morgan Huffman
Public Utilities Director
City of Thomasville
CC: Michael Br ndt 336-475-4220

Timber Creek
Rainfall from 7/1/2021to 7/20/2021
Device Time
7/18/2021 20:45
0.43
7/18/2021 21:00
0.53
7/18/202121:15
0.23
7/18/202121:30
0.05
7/18/2021 21:45
0.01
7/18/202122:00
0.01
7/18/2021 22:15
0.02
7/18/202122:30
0
7/18/202122:45
0
7/18/2021 23:00
0.01
7/18/202123:15
0.17
7/18/2021 23:30
0.3
7/18/2021 23:45
0.03
7/19/2021 0:00
0.05
7/19/2021 0:15
0.02
7/19/2021 0:30
0.03
7/19/2021 0:45
0.04
Pre -Downpour
7/19/20211:00
0.04
Rainfall Total:
7/19/2021 1:15
0.03
7/19/2021 1:30
0.01
7/19/2021 1:45
0
7/19/2021 2:00
0.01
7/19/2021 2:15
0.01
7/19/2021 2:30
0
7/19/2021 2:45
0.01
7/19/2021 3:00
0.01
7/19/2021 3:15
0
7/19/2021 3:30
0
7/19/2021 3:45
0
7/19/2021 4:00
0
7/19/2021 4:15
0.02
7/19/20214:30
0.02
7/19/2021 4:45
0.07
7/19/20215:00
0.18
Immmediate Pre-
7/19/20215:15
0.56
event Rainfall
7/19/20215:30
0.39
Total:
7/19/2021 5:45
0.18
7/19/2021 6:00
0.02
7/19/2021 6:15
0
7/19/2021 6:30
0.01
Event Begins
7/19/2021 6:45
0.01
7/19/2021 7:00
0
7/19/2021 7:15
0
7/19/2021 7:30
0.01
Event Ends
Total:
3.52
1.31

Du - N/
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