NC0020737_Enforcement (Other)_20191204

DMR REVIEW RECORD
Mooresville Regional Office
Facility Name: Pilot Creek WWTP
Permit Number:
NCO020737
Report Period: October 2019
Prior Assessments:
1 Enforcement Factor: 1.00
Waterbody
Outfall # Outfall Description
Waterbody Name
Classification
001 Effluent to Buffalo Creek
Buffalo Creek
C
Monthly Average Limit Violations
Sample Location: Outfall 001- Effluent
Violation
Unit of Limit
Calculated % Over
Date Parameter
Frequency Measure Value
Value Limit
Action
10/31/2019 Nitrogen, Ammonia Total (as N) -
5 X week mg/I 2.60
4.30 64.2
Concentration
Weekly Average Limit Violations
Sample Location: Outfall 001 - Effluent
Violation
Date Parameter
Frequency
Unit of
Measure
Limit
Value
Calculated
Value
% Over
Limit
Action
10/26/2019 Nitrogen, Ammonia Total (as N) -
Concentration
5 X week
mg/I
7.80
9.80
25.8
Daily Limit Violations
Sample Location: Outfall 001 - Effluent
Violation
Date Parameter
Frequency
Unit of
Measure
Limit
Value
Calculated
Value
% Over
Limit
Action
10/16/2019 Chlorine, Total Residual
5 X week
ug/I
28
33
17.9
No Action, BPJ
10/21/2019 Chlorine, Total Residual
5 X week
ug/I
28
56
100.0
10/22/2019 Chlorine, Total Residual
5 X week
ug/I
28
83
196.4
10/23/2019 Chlorine, Total Residual
5 X week
ug/I
28
44
57.1
No Action, BPJ
10/24/2019 Chlorine, Total Residual
5 X week
ug/I
28
35
25.0
No Action, BPJ
10/29/2019 Chlorine, Total Residual
5 X week
ug/I
28
38
35.7
No Action, BPJ
10/31/2019 Chlorine, Total Residual
5 X week
ug/I
28
30
7.1
No Action, BPJ

Other Violations/Staff Remarks:
Facility staff indicated that, CL2 limit exceeded, after blanking machine with reagent water analysis was within acceptable limits.
Supervisor Remarks:
NOV/NOI
Ori Tuvia
Completed by:
Date:
DocuSigned by:
Assistant Regional [Afw� H NUft
Supervisor Sign -off: ffM! Date:
Regional
Supervisor Sign -off: Date:
12/12/2019
12.12.19

Prior 12-Month Enforcement Histor
Permit Number: NCO020737
Report Period: October 2019
Limit Violation
Sample Location:
Outfall 001 - Effluent
Violation Report
Violation
Date Period
Parameter
Type
NOD NOV
CPA
8/8/2019 8-2019
Arsenic, Total (as As)
Daily Maximum
NOV-2019-LV-0721
LV-2019-0317
Exceeded
8/15/2019 8-2019
Arsenic, Total (as As)
Daily Maximum
NOV-2019-LV-0721
LV-2019-0317
Exceeded
8/31/2019 8-2019
Arsenic, Total (as As)
Monthly Average
NOV-2019-LV-0721
LV-2019-0317
Exceeded
Other Violation
Violation Report
Violation
Date Period
Parameter
Type
NOD NOV
CPA
10/16/2018
Violation detected
NOV-2018-PC-0410
during inspection
10/16/2018
Violation detected
NOV-2018-PC-0410
during inspection
10/16/2018
Violation detected
NOV-2018-PC-0410
during inspection