NC0065242_June EDMR REV_20200908

DMR REVIEW RECORD
Mooresville Regional Office
Facility Name: Grover WWTP
Permit Number:
NCO065242
Report Period: June 2020
Prior Assessments:
2 Enforcement Factor: 1.00
Waterbody
Outfall # Outfall Description
Waterbody Name
Classification
001 Effluent to Jakes Branch
Jakes Branch
C
Monthly Average Limit Violations
Sample Location: Outfall 001- Effluent
Violation
Unit of Limit
Calculated % Over
Date Parameter
Frequency Measure Value
Value Limit
Action
6/30/2020 Nitrogen, Ammonia Total (as N) -
Weekly mg/I 3.90
6.80 75.2
Concentration
Monitoring Frequency Violations
Sample Location: Outfall 001 - Effluent
Violation Unit of
Date Parameter Frequency Measure Action
6/30/2020 Mercury, Total (as Hg) - Concentration Quarterly ng/I
6/30/2020 Nitrogen, Total - Concentration Semi-annually mg/I
6/30/2020 Phosphorus, Total (as P) - Concentration Semi-annually mg/I
Other Violations/Staff Remarks:
Recommend — NOI for monthly Ammonia , in addition to the limit violation see letter attached explaining the frequency violations
the reason samples are missing seems like shipment error but still think the ORC and permitee could have done better job
sampling earlier in the month and also track their samples recommend NOV for frequency violations.
Supervisor Remarks:
NOI
Completed by: Ori Tuvia Date: 9/8/2020
Assistant Regional
Supervisor Sign -off:
DocuSigned by:
Regional --
Supervisor Sign -off: A14CC681AF27425...
Date:
Date:
9/9/2020

Prior 12-Month Enforcement Histor
Permit Number: NC0065242
Report Period: June 2020
Limit Violation
Sample Location:
Outfall 001 - Effluent
Violation Report
Violation
Date Period
Parameter
Type
NOD NOV CPA
10/31/2019 10-2019
Nitrogen, Ammonia Total (as
Monthly Average
NOV-2019-LV-0922
N) - Concentration
Exceeded
4/25/2020 4-2020
Nitrogen, Ammonia Total (as
Weekly Average
NOV-2020-LV-0469 LV-2020-0187
N) - Concentration
Exceeded
4/30/2020 4-2020
Nitrogen, Ammonia Total (as
Monthly Average
NOV-2020-LV-0469 LV-2020-0187
N) - Concentration
Exceeded
6/30/2019 6-2019
Nitrogen, Ammonia Total (as
Monthly Average
NOV-2019-LV-0585 LV-2019-0219
N) - Concentration
Exceeded
9/30/2019 9-2019
Nitrogen, Ammonia Total (as
Monthly Average
NOV-2019-LV-0871
N) - Concentration
Exceeded