NC0044423_202102VRR_20210625

DMR REVIEW RECORD
Winston-Salem Regional Office
Facility Name: Appalachian State WTP
Permit Number:
NCO044423
Report Period: February 2021
Prior
Assessments:
0 Enforcement Factor: 1.00
Waterbody
Outfall # Outfall Description
Waterbody Name
Classification
001 Membrane/filter backwash to Norris
Brch
Norris Branch, including the raw water holding
WS-II;Tr,HQW,CA
reservoir below normal reservoir elevation
Monthly Average Limit Violations
Sample Location: Outfall 001 - Effluent
Violation
Unit of Limit
Calculated % Over
Date Parameter
Frequency
Measure Value
Value Limit
Action
2/28/2021 Copper, Total (as Cu)
Monthly
ug/I 4
26 550.0
Daily Limit Violations
Sample Location: Outfall 001 - Effluent
Violation
Unit of Limit
Calculated % Over
Date Parameter
Frequency
Measure Value
Value Limit
Action
2/10/2021 Chlorine, Total Residual
2 X month
ug/I 28
32 14.3
No Action, BPJ
2/10/2021 Copper, Total (as Cu)
Monthly
ug/I 5.20
26 400.0
Other Violations/Staff Remarks:
Their permit beginning Jan 2021 includes a daily max/monthly
average on Cu.
Violation occurred with Cu in Jan 2021 resulting in
NOV. Recommend NOI
Supervisor Remarks:
Jenny — NOI
Completed by: Tricia Lowery Date: 6/25/2021
Assistant Regional
Supervisor Sign -off: Jenny Graznak Date: 7/2/2021
Regional
Supervisor Sign -off: Date:

Prior 12-Month Enforcement Histor
Permit Number: NC0044423
Report Period: February 2021
Limit Violation
Sample Location:
Outfall 001 - Effluent
Violation Report
Violation
Date Period
Parameter
Type
NOD NOV CPA
1/13/2021 1-2021
Copper, Total (as Cu)
Daily Maximum
NOV-2021-LV-0261
Exceeded
1/31/2021 1-2021
Copper, Total (as Cu)
Monthly Average
NOV-2021-LV-0261
Exceeded
2/12/2020 2-2020
Turbidity
Daily Maximum
NOV-2020-LV-0294
Exceeded
2/26/2020 2-2020
Turbidity
Daily Maximum
NOV-2020-LV-0294
Exceeded
3/11/2020 3-2020
Turbidity
Daily Maximum
NOV-2020-LV-0411
Exceeded
3/25/2020 3-2020
Turbidity
Daily Maximum
NOV-2020-LV-0411
Exceeded
5/13/2020 5-2020
Turbidity
Daily Maximum
NOV-2020-LV-0568
Exceeded
5/27/2020 5-2020
Turbidity
Daily Maximum
NOV-2020-LV-0568
Exceeded
6/10/2020 6-2020
Turbidity
Daily Maximum
NOV-2020-LV-0712
Exceeded