NC0025453_Response NOV-2019-LV-0466_20190718

TOWN OF CLAYTON
"SERVICE" OPERATIONS
CENTER
"ENVIRONMENT'
ELECTRIC SERVICE •
PUBLIC WORKS
[phone]
[phone]
VEHICLE MAINTENANCE
WATER RECLAMATION
[phone]
[phone]
7/18/2019
NC Dept of Environmental Quality
Rick Bolich, L. G., Assistant Regional Supervisor
NC DWR, Water Quality Regional Operations
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Raleigh Regional Office
3800 Barrett Dr,
Raleigh Regional Office
Raleigh, North Carolina 27609
Subject: Notice of Violation & Intent To Assess Civil Penalty, Town of Clayton, NC, NC 0025453, Tracking Number
N OV-2019-LV-0466
Mr. Bolich,
Please find the Town's comments in regards to a Notice of Violation received July 10, 2019 with a tracking number
of NOV-2019-LV-0466. The NOV is for exceeding the weekly BOD limit of 7.5 mg/I with a reported value 11.25
mg/I. This event was reported to Mitch Hayes on April 261h once we received the laboratory results.
The exceedance was directly related to local flash flooding in the area due to rainfall. The resulting inflow into the
system boosted the influent flow to > 6 mgd for several hours. This surging resulted in some solids carry over from
the clarifiers and dictated the need for us to cycle aerators on and off to dampen the effects of the surge
conditions. The sample of the effluent BOD collected on the April the 9" was 19 mg/I and the sample collected on
April 111h was 3 mg/I.
The Town is currently has budgeted and is executing an outfall replacement project along Little Creek. The
replacement project should have a positive effect on influent inflow and infiltration into the facility. The Town has
also placed an 1/1 study in the Capital Project Plan for execution.
Please contact me directly at 919-553-1536, if you have any questions.
Sincerely, 7
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;Es Warren,
ORC, Wastewater Operations Superintendent
Town of Clayton, NC
Copy: Mitch Hayes
653 Highway 42 West, P.O. BoK 879 -Clayton, North Carolina 27520 - (919) 553- t 530 - Fax [phone]