NC0088722_NOV and Intent to Assess_20191004

DMR REVIEW RECORD
Mooresville Regional Office
Facility Name: Killian Creek WWTP
Permit Number:
NCO088722
Report Period: August 2019
Prior Assessments:
1 Enforcement Factor: 1.00
Waterbody
Outfall # Outfall Description
Waterbody Name
Classification
001 effluent to Killian Creek
Killian 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
8/31/2019 Nitrogen, Ammonia Total (as N) -
3 X week mg/I 1.70
4.90 186.9
Concentration
Weekly Average Limit Violations
Sample Location: Outfall 001 - Effluent
Violation
Unit of Limit
Calculated
% Over
Date Parameter Frequency
Measure Value
Value
Limit Action
8/17/2019 Nitrogen, Ammonia Total (as N) - 3 X week
mg/I 5.10
8.10
59.5
Concentration
8/24/2019 Nitrogen, Ammonia Total (as N) - 3 X week
mg/I 5.10
10.60
107.8
Concentration
Other Violations/Staff Remarks:
Facility staff was in constant communication with me regarding the violation and
was seeking assistance how to resolve the high
ammonia
Supervisor Remarks:
NOI - we will need to see a response from
them detailing the
issue and
how it was
resolved, if it has been resolved.
R__.
Completed by:
Assistant Regional
Supervisor Sign -off:
Regional
Supervisor Sign -off:
BB057A2DE017498...
DocuSigned by:
A14CC681AF27425...
on Tuvia 10/4/2019
Date:
Date:
Date:
10/7/2019

Prior 12-Month Enforcement Histor
Permit Number: NCO088722
Report Period: August 2019
Limit Violation
Sample Location:
Outfall 001 - Effluent
Violation Report
Violation
Date Period
Parameter
Type
NOD NOV CPA
4/6/2019 4-2019
Nitrogen, Ammonia Total (as
Weekly Average
NOV-2019-LV-0421
N) - Concentration
Exceeded
4/13/2019 4-2019
Nitrogen, Ammonia Total (as
Weekly Average
NOV-2019-LV-0421
N) - Concentration
Exceeded
4/30/2019 4-2019
Nitrogen, Ammonia Total (as
Monthly Average
NOV-2019-LV-0421
N) - Concentration
Exceeded
8/4/2018 8-2018
Nitrogen, Ammonia Total (as
Weekly Average
NOV-2018-LV-0769 LV-2018-0280
N) - Concentration
Exceeded
8/31/2018 8-2018
Nitrogen, Ammonia Total (as
Monthly Average
NOV-2018-LV-0769 LV-2018-0280
N) - Concentration
Exceeded
Other Violation
Violation Report
Violation
Date Period
Parameter
Type
NOD NOV CPA
10/9/2018 10-2018
Aquatic toxicity
NOV-2019-TX-0002
permit limit violation