NC0085812_Monitoring (Report)_20200408

DMR REVIEW RECORD
Mooresville Regional Office
Facility Name: Grassy Branch WWTP
Permit Number: NCO085812
Report Period: February Prior Assessments:
3 Enforcement Factor: 1.00
Waterbody
Outfall # Outfall Description Waterbody Name
Classification
001 Effluent to Crooked Creek Crooked 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
2/29/2020 Flow, in conduit or thru treatment Continuous mgd 0.05
0.10 25.0
plant
Other Violations/Staff Remarks: Facility reported heavy rains for month of February 2020.
Supervisor Remarks:
Nov - heavy rain event on Feb 6th. No NOI necessary.
DocuSigned by:
4/6/2020
Completed by: Sti
Date:
91C2A007838943E...
Assistant Regional
Supervisor Sign -off:
Date:
DocuSigned by:
Regional
EA14(,(-.6AIAF9749,'
4/8/2020
Supervisor Sign -off:
Date:

Prior 12-Month Enforcement Histor
Permit Number: NCO085812
Report Period: February
2020
Limit Violation
Sample Location:
Outfall 001 - Effluent
Violation
Report
Violation
Date
Period
Parameter
Type
NOD NOV
CPA
1/31/2020
1-2020
Flow, in conduit or thru
Monthly Average
NOV-2020-LV-0202
treatment plant
Exceeded
12/31/2019
12-2019
Flow, in conduit or thru
Monthly Average
NOD-2020-LV-0025
treatment plant
Exceeded
2/28/2019
2-2019
Flow, in conduit or thru
Monthly Average
NOV-2019-LV-0296
LV-2020-0100
treatment plant
Exceeded
3/2/2019
3-2019
Coliform, Fecal MF, MFC
Weekly Geometric
NOV-2019-LV-0920
LV-2020-0101
Broth, 44.5 C
Mean Exceeded
3/31/2019
3-2019
Flow, in conduit or thru
Monthly Average
NOV-2019-LV-0920
LV-2020-0101
treatment plant
Exceeded
4/6/2019
4-2019
BOD, 5-Day (20 Deg. C) -
Weekly Average
NOV-2019-LV-0399
LV-2020-0102
Concentration
Exceeded
4/6/2019
4-2019
Solids, Total Suspended -
Weekly Average
NOV-2019-LV-0399
LV-2020-0102
Concentration
Exceeded
4/6/2019
4-2019
Coliform, Fecal MF, MFC
Weekly Geometric
NOV-2019-LV-0399
LV-2020-0102
Broth, 44.5 C
Mean Exceeded
4/13/2019
4-2019
BOD, 5-Day (20 Deg. C) -
Weekly Average
NOV-2019-LV-0399
LV-2020-0102
Concentration
Exceeded
4/13/2019
4-2019
Nitrogen, Ammonia Total (as
Weekly Average
NOV-2019-LV-0399
LV-2020-0102
N) - Concentration
Exceeded
4/30/2019
4-2019
BOD, 5-Day (20 Deg. C) -
Monthly Average
NOV-2019-LV-0399
LV-2020-0102
Concentration
Exceeded
4/30/2019
4-2019
Flow, in conduit or thru
Monthly Average
NOV-2019-LV-0399
LV-2020-0102
treatment plant
Exceeded
4/30/2019
4-2019
Nitrogen, Ammonia Total (as
Monthly Average
NOV-2019-LV-0399
LV-2020-0102
N) - Concentration
Exceeded