NC0043532_Monitoring (Report)_20200408

DMR REVIEW RECORD
Mooresville Regional Office
Facility Name: West Stanly WWTP
Permit Number:
NCO043532
Report Period: February
Prior Assessments:
3
Enforcement Factor: 1.00
Waterbody
Outfall # Outfall Description
Waterbody Name
Classification
002 Effluent (Rocky River outfall)
Rocky River
C
Monthly Average Limit Violations
Sample Location: Outfall 002 - Effluent
Violation
Unit of
Limit
Calculated
% Over
Date Parameter
Frequency
Measure
Value
Value
Limit
Action
2/29/2020 Flow, in conduit or thru treatment
Continuous
mgd
0.90
0.90
3.0
plant
2/29/2020 Nitrogen, Ammonia Total (as N) -
3 X week
mg/I
6
18.00
199.9
Concentration
Weekly Average Limit Violations
Sample Location: Outfall 002 - Effluent
Violation
Unit of
Limit
Calculated
% Over
Date Parameter
Frequency
Measure
Value
Value
Limit
Action
2/22/2020 Nitrogen, Ammonia Total (as N) -
3 X week
mg/I
18
23.70
31.5
Concentration
2/22/2020 Solids, Total Suspended -
3 X week
mg/I
45
48.30
7.4
Concentration
Daily Limit Violations
Sample Location: Outfall 002 - Effluent
Violation
Unit of
Limit
Calculated
% Over
Date Parameter
Frequency
Measure
Value
Value
Limit
Action
2/7/2020 Chlorine, Total Residual
3 X week
ug/I
28
32
14.3
No Action, BPJ
2/13/2020 Chlorine, Total Residual
3 X week
ug/I
28
30
7.1
No Action, BPJ
2/14/2020 Chlorine, Total Residual
3 X week
ug/I
28
32
14.3
No Action, BPJ
2/27/2020 Chlorine, Total Residual
3 X week
ug/I
28
36
28.6
No Action, BPJ
2/28/2020 Chlorine, Total Residual
3 X week
ug/I
28
36
28.6
No Action, BPJ

Other Violations/Staff Remarks: Facility reported heavy rain events for month of February 2020. Facility under SOC
WQ S10-003 that became active on March 6, 2020.
Supervisor Remarks:
Handle under terms of SOC.
DocuSigned by:
Completed by: Ste^ Date: 4/7/2020
91C2A007838943E...
Assistant Regional
Supervisor Sign -off: Date:
DocuSigned by:
Regional 4/8/2020
Supervisor Sign -off: Date:

Prior 12-Month Enforcement Histor
Permit Number: NCO043532
Report Period: February
2020
Limit Violation
Sample Location:
Outfall 002 - Effluent
Violation
Report
Violation
Date
Period
Parameter
Type
NOD NOV
CPA
2/16/2019
2-2019
BOD, 5-Day (20 Deg. C) -
Weekly Average
NOV-2019-LV-0293
LV-2019-0259
Concentration
Exceeded
2/16/2019
2-2019
Solids, Total Suspended -
Weekly Average
NOV-2019-LV-0293
LV-2019-0259
Concentration
Exceeded
2/23/2019
2-2019
BOD, 5-Day (20 Deg. C) -
Weekly Average
NOV-2019-LV-0293
LV-2019-0259
Concentration
Exceeded
2/23/2019
2-2019
Solids, Total Suspended -
Weekly Average
NOV-2019-LV-0293
LV-2019-0259
Concentration
Exceeded
2/23/2019
2-2019
Coliform, Fecal MF, MFC
Weekly Geometric
NOV-2019-LV-0293
LV-2019-0259
Broth, 44.5 C
Mean Exceeded
2/28/2019
2-2019
BOD, 5-Day (20 Deg. C) -
Monthly Average
NOV-2019-LV-0293
LV-2019-0259
Concentration
Exceeded
2/28/2019
2-2019
Solids, Total Suspended -
Monthly Average
NOV-2019-LV-0293
LV-2019-0259
Concentration
Exceeded
3/9/2019
3-2019
BOD, 5-Day (20 Deg. C) -
Weekly Average
NOV-2019-LV-0328
LV-2019-0261
Concentration
Exceeded
3/9/2019
3-2019
Coliform, Fecal MF, MFC
Weekly Geometric
NOV-2019-LV-0328
LV-2019-0261
Broth, 44.5 C
Mean Exceeded
3/16/2019
3-2019
BOD, 5-Day (20 Deg. C) -
Weekly Average
NOV-2019-LV-0328
LV-2019-0261
Concentration
Exceeded
3/16/2019
3-2019
Solids, Total Suspended -
Weekly Average
NOV-2019-LV-0328
LV-2019-0261
Concentration
Exceeded
3/30/2019
3-2019
Coliform, Fecal MF, MFC
Weekly Geometric
NOV-2019-LV-0328
LV-2019-0261
Broth, 44.5 C
Mean Exceeded
3/31/2019
3-2019
BOD, 5-Day (20 Deg. C) -
Monthly Average
NOV-2019-LV-0328
LV-2019-0261
Concentration
Exceeded
3/31/2019
3-2019
Solids, Total Suspended -
Monthly Average
NOV-2019-LV-0328
LV-2019-0261
Concentration
Exceeded
3/31/2019
3-2019
Coliform, Fecal MF, MFC
Monthly Geometric
NOV-2019-LV-0328
LV-2019-0261
Broth, 44.5 C
Mean Exceeded
4/13/2019
4-2019
BOD, 5-Day (20 Deg. C) -
Weekly Average
NOV-2019-LV-0398
LV-2019-0262
Concentration
Exceeded
4/13/2019
4-2019
Solids, Total Suspended -
Weekly Average
NOV-2019-LV-0398
LV-2019-0262
Concentration
Exceeded

Limit Violation
Sample Location: Outfall 002 - Effluent
Violation Report
Date Period Parameter
Violation
Type NOD NOV CPA
4/30/2019 4-2019 BOD, 5-Day (20 Deg. C) - Monthly Average NOV-2019-LV-0398 LV-2019-0262
Concentration Exceeded
4/30/2019 4-2019 Solids, Total Suspended - Monthly Average NOV-2019-LV-0398 LV-2019-0262
Concentration Exceeded