NC0024244_Notice of Violation_20231130

DMR REVIEW RECORD
Mooresville Regional Office
Facility Name: Long Creek WWTP
Permit Number: NCO024244
Report Period: September 2023
Prior Assessments:
7
Enforcement Factor: 1.50
Waterbody
Outfall # Outfall Description
Waterbody Name
Classification
001 Effluent to Long Creek
Long Creek
C
Quarterly Average Limit Violations
Sample Location: Outfall 001- Effluent
Violation
Unit of
Limit
Calculated
% Over
Date Parameter
Frequency
Measure
Value
Value
Limit
Action
9/30/2023 Mercury, Total (as Hg) -
Quarterly
ng/I
13
15.50
19.2
Proceed to NOV
Concentration
Monthly Average Limit Violations
Sample Location: Outfall 001- Effluent
Violation
Unit of
Limit
Calculated
% Over
Date Parameter
Frequency
Measure
Value
Value
Limit
Action
9/30/2023 Copper, Total (as Cu)
Monthly
ug/I
15.60
32
105.1
Proceed to NOV
9/30/2023 Solids, Total Suspended -
5 X week
mg/I
35
58.40
66.7
Proceed to Enforcement
Concentration
Case
Weekly Average Limit Violations
Sample Location: Outfall 001 - Effluent
Violation
Unit of
Limit
Calculated
% Over
Date Parameter
Frequency
Measure
Value
Value
Limit
Action
9/2/2023 Solids, Total Suspended -
5 X week
mg/I
50
52.80
5.6
Proceed to Enforcement
Concentration
Case
9/16/2023 Solids, Total Suspended -
5 X week
mg/I
50
50.40
0.8
Proceed to Enforcement
Concentration
Case
9/23/2023 Solids, Total Suspended -
5 X week
mg/I
50
80.40
60.8
Proceed to Enforcement
Concentration
Case
9/30/2023 Solids, Total Suspended -
5 X week
mg/I
50
59.80
19.6
Proceed to Enforcement
Concentration
Case

Daily Limit Violations
Sample Location: Outfall 001- Effluent
Violation
Date Parameter Frequency
Unit of
Measure
Limit Calculated % Over
Value Value Limit
Action
9/18/2023 Chlorine, Total Residual 5 X week
ug/I
18 20 11.1
No Action, BPJ
9/14/2023 Copper, Total (as Cu) Monthly
ug/I
21.60 32 48.1
Proceed to NOV
Reporting Violations
Sample Location: Outfall 001- Effluent
Violation
Date Parameter Frequency
Unit of
Measure
Violation
Type
Action
9/30/2023 Coliform, Fecal MF, MFC Broth, 5 X week
44.5 C
#/100ml
Parameter reported with
invalid Unit of Measure
No Action, Facility Reporting
Error
Other Violations/Staff Remarks: Recommend NOI for Total Copper and Total Mercury not covered under SOC WQ
519-007. Modified SOC expires August 31, 2026. TSS violations will be covered under SOC Stipulated Penalty.
Supervisor Remarks:
DocuSigned by:
Completed by: Date:
91C2A007838943E_
Assistant Regional
Supervisor Sign -off: Date:
Regional
Supervisor Sign -off: Date:
11/20/2023

Prior 12-Month Enforcement Histor
Permit Number: NC0024244
Report Period: September 2023
Limit Violation
Sample Location:
Violation
Report
Violation
Date
Period
Parameter
Type
NOD NOV CPA
10/1/2022
10-2022
Solids, Total Suspended -
Weekly Average
SP-2022-0022
Concentration
Exceeded
10/8/2022
10-2022
Solids, Total Suspended -
Weekly Average
SP-2022-0022
Concentration
Exceeded
10/22/2022
10-2022
Solids, Total Suspended -
Weekly Average
SP-2022-0022
Concentration
Exceeded
10/29/2022
10-2022
Solids, Total Suspended -
Weekly Average
SP-2022-0022
Concentration
Exceeded
10/31/2022
10-2022
Solids, Total Suspended -
Monthly Average
SP-2022-0022
Concentration
Exceeded
11/19/2022
11-2022
Solids, Total Suspended -
Weekly Average
SP-2023-0001
Concentration
Exceeded
11/26/2022
11-2022
Solids, Total Suspended -
Weekly Average
SP-2023-0001
Concentration
Exceeded
11/30/2022
11-2022
Solids, Total Suspended -
Monthly Average
SP-2023-0001
Concentration
Exceeded
1/7/2023
1-2023
Solids, Total Suspended -
Weekly Average
SP-2023-0020
Concentration
Exceeded
1/31/2023
1-2023
Solids, Total Suspended -
Monthly Average
SP-2023-0020
Concentration
Exceeded
12/31/2022
12-2022
Solids, Total Suspended -
Monthly Average
SP-2023-0003
Concentration
Exceeded
3/31/2023
3-2023
Nitrogen, Ammonia Total (as
Monthly Average
NOV-2023-LV-0369 SP-2023-0024
N) - Concentration
Exceeded
4/30/2023
4-2023
Nitrogen, Ammonia Total (as
Monthly Average
SP-2023-0026
N) - Concentration
Exceeded
9/3/2022
9-2022
Solids, Total Suspended -
Weekly Average
SP-2022-0021
Concentration
Exceeded
9/10/2022
9-2022
Solids, Total Suspended -
Weekly Average
SP-2022-0021
Concentration
Exceeded
9/17/2022
9-2022
Solids, Total Suspended -
Weekly Average
SP-2022-0021
Concentration
Exceeded
9/24/2022
9-2022
Solids, Total Suspended -
Weekly Average
SP-2022-0021
Concentration
Exceeded

Limit Violation
Sample Location:
Violation Report
Violation
Date Period
Parameter
Type
NOD NOV CPA
9/30/2022 9-2022
Solids, Total Suspended -
Monthly Average
SP-2022-0021
Concentration
Exceeded
Sample Location:
Outfall 001 - Effluent
Violation Report
Violation
Date Period
Parameter
Type
NOD NOV CPA
7/12/2023 7-2023
Copper, Total (as Cu)
Daily Maximum
NOV-2023-LV-0690
Exceeded
7/31/2023 7-2023
Copper, Total (as Cu)
Monthly Average
NOV-2023-LV-0690
Exceeded
8/1/2023 8-2023
Copper, Total (as Cu)
Daily Maximum
NOV-2023-LV-0765
Exceeded
8/31/2023 8-2023
Copper, Total (as Cu)
Monthly Average
NOV-2023-LV-0765
Exceeded