NC0046809_NOV-2020-LM-0039 NOI DMR Review Record_20200507

DMR REVIEW RECORD
Winston-Salem Regional Office
Facility Name: Cornerstone Conference and Resource Center WWTP
Permit Number:
NCO046809
Report Period: March 2020
Prior Assessments: 0
Enforcement Factor: 1.00
Waterbody
Outfall # Outfall Description
Waterbody
Name
Classification
001 Effluent to UT Benaja Creek
Benaja Creek
WS-V;NSW
Monthly Average Limit Violations
Sample Location: Outfall 001- Effluent
Violation
Unit of
Limit Calculated
% Over
Date Parameter
Frequency
Measure
Value
Value
Limit
Action
3/31/2020 BOD, 5-Day (20 Deg. C) -
Weekly
mg/I
30
47.10
57.1
Concentration
3/31/2020 Solids, Total Suspended -
Weekly
mg/I
30
41.30
37.5
Concentration
Daily Limit Violations
Sample Location: Outfall 001 - Effluent
Violation
Unit of
Limit Calculated
% Over
Date Parameter
Frequency
Measure
Value
Value
Limit
Action
3/17/2020 BOD, 5-Day (20 Deg. C) -
Weekly
mg/I
45
48.50
7.8
Concentration
3/24/2020 BOD, 5-Day (20 Deg. C) -
Weekly
mg/I
45
66
46.7
Concentration
3/17/2020 Solids, Total Suspended -
Weekly
mg/I
45
46
2.2
Concentration
3/24/2020 Solids, Total Suspended -
Weekly
mg/I
45
51
13.3
Concentration
Monitoring Frequency Violations
Sample Location: Outfall 001 - Effluent
Violation
Unit of
Date Parameter
Frequency
Measure
Action
3/31/2020 Nitrogen, Total - Concentration
Quarterly
mg/I
3/31/2020 Phosphorus, Total (as P) - Concentration
Quarterly
mg/I

Other Violations/Staff Remarks: Well, in this case, the violation history really doesn't sway me either way, considering the
ORC's comments. This is the ORC's explanation in the comments field: "BOD and TSS were high due to low flow". That is not
helpful at all.
I recommend NOI.
Supervisor Remarks:
NOI-60 days
NOV-2020-LM-0039
Completed by:
Assistant Regional
Supervisor Sign -off:
Regional
Supervisor Sign -off:
F D CUSIgned
by:
�onaa Beorve, Date:
620F8DD5F2A3460...
uocuaignea<oy:
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145B49E225C94EA...
Date:
5/7/2020
Date: 5/12/2020

Prior 12-Month Enforcement Histor
Permit Number: NCO046809
Report Period: March 2020
Limit Violation
Sample Location:
Outfall 001 - Effluent
Violation Report
Violation
Date Period
Parameter
Type
NOD NOV CPA
11/6/2019 11-2019
Solids, Total Suspended -
Daily Maximum
NOV-2020-LV-0080
Concentration
Exceeded
4/5/2019 4-2019
Coliform, Fecal MF, MFC
Daily Maximum
NOV-2019-LV-0419
Broth, 44.5 C
Exceeded
Monitoring Violation
Sample Location:
Outfall 001 - Effluent
Violation Report
Violation
Date Period
Parameter
Type
NOD NOV CPA
2/29/2020 2-2020
Nitrogen, Ammonia Total (as
Frequency Violation
NOV-2020-MV-0073
N) - Concentration
Other Violation
Violation Report
Violation
Date Period
Parameter
Type
NOD NOV CPA
1/30/2020 11-2019
Aquatic toxicity
NOV-2020-TX-0001
permit limit violation