NC0021156_Other_20221003

DMR REVIEW RECORD
Mooresville Regional Office
Facility Name: Mount Holly WWTP Permit Number: NC0021156
Report Period: August 2022
Prior Assessments: 0 Enforcement Factor: 1.00
Waterbody
Outfall # Outfall Description Waterbody Name Classification
001 Effluent to the Catawba River
CATAWBA RIVER (Lake Wylie below elevation 570) WS-IV;CA
Monthly Average Limit Violations
Sample Location: Outfall 001 - Effluent
Violation Unit of Limit Calculated % Over
Date Parameter Frequency Measure Value Value Limit Action
8/31/2022 Coliform, Fecal MF, MFC Broth, 5 X week #/100m1 200 277.20 38.6
44.5 C
Weekly Average Limit Violations
Sample Location: Outfall 001- Effluent
Violation Unit of Limit Calculated % Over
Date Parameter
Frequency Measure Value Value Limit
Action
8/20/2022 Coliform, Fecal MF, MFC Broth, 5 X week #/100m1 400 839.00 109.8
44.5 C

Daily Limit Violations
Sample Location: Outfall 001- Effluent
Violation Unit of Limit Calculated % Over
Date Parameter Frequency Measure Value Value Limit
Action
8/1/2022 Chlorine, Total Residual
5 X week ug/I 28 37 32.1 No Action, BPJ
8/2/2022 Chlorine, Total Residual
5 X week ug/I 28 38 35.7 No Action, BPJ
8/3/2022 Chlorine, Total Residual
5 X week ug/I 28 36 28.6 No Action, BPJ
8/4/2022 Chlorine, Total Residual
5 X week ug/I 28 46 64.3 No Action, BPJ
8/5/2022 Chlorine, Total Residual
5 X week ug/I 28 48 71.4 No Action, BPJ
8/8/2022 Chlorine, Total Residual
5 X week ug/I 28 46 64.3 No Action, BPJ
8/9/2022 Chlorine, Total Residual
5 X week ug/I 28 48 71.4 No Action, BPJ
8/10/2022 Chlorine, Total Residual
5 X week ug/I 28 48 71.4 No Action, BPJ
8/11/2022 Chlorine, Total Residual
5 X week ug/I 28 35 25.0 No Action, BPJ
8/17/2022 Chlorine, Total Residual
5 X week ug/I 28 38 35.7 No Action, BPJ
8/18/2022 Chlorine, Total Residual
5 X week ug/I 28 48 71.4 No Action, BPJ
8/19/2022 Chlorine, Total Residual
5 X week ug/I 28 30 7.1 No Action, BPJ
8/22/2022 Chlorine, Total Residual
5 X week ug/I 28 46 64.3 No Action, BPJ
8/23/2022 Chlorine, Total Residual
5 X week ug/I 28 42 50.0 No Action, BPJ
8/24/2022 Chlorine, Total Residual
5 X week ug/I 28 48 71.4 No Action, BPJ
8/25/2022 Chlorine, Total Residual
5 X week ug/I 28 42 50.0 No Action, BPJ
8/26/2022 Chlorine, Total Residual
5 X week ug/I 28 48 71.4 No Action, BPJ
8/29/2022 Chlorine, Total Residual
5 X week ug/I 28 34 21.4 No Action, BPJ
8/30/2022 Chlorine, Total Residual
5 X week ug/I 28 40 42.9 No Action, BPJ
Other Violations/Staff Remarks:
NOI Recommended
Supervisor Remarks:
NOI

Completed by: Ori Tuvia
Assistant Regional
Supervisor Sign -off:
Regional
Supervisor Sign -off:
DocuSigned by:
F1RIFRRQA9DR4A1
Date: 10/3/2022
10/3/2022
Date:
Date:

Prior 12-Month Enforcement History
Permit Number: NC0021156 Report Period: August 2022
Limit Violation
Sample Location: Outfall 001 - Effluent
Violation Report Violation
Date Period Parameter Type
NOD
NOV CPA
7/23/2022 7-2022 Coliform, Fecal MF, MFC
Broth, 44.5 C
Weekly Geometric
Mean Exceeded
NOV-2022-LV-0604