NC0032131_202010DMRRR_20210208

DMR REVIEW RECORD
Winston-Salem Regional Office
Facility Name: Tweetsie Railroad
Permit Number:
NCO032131
Report Period: October 2020
Prior Assessments:
1 Enforcement
Factor: 1.00
Waterbody
Outfall # Outfall Description
Waterbody Name
Classification
001 Effluent to Middle Fork S Fork New
River Middle Fork South
Fork New River
WS-IV;Tr:+
Monthly Average Limit Violations
Sample Location: Outfall 001 - Effluent
Violation
Unit of Limit
Calculated % Over
Date Parameter
Frequency Measure Value
Value Limit
Action
10/31/2020 BOD, 5-Day (20 Deg. C) -
Weekly mg/I 5
7.20 44.0
Concentration
10/31/2020 Solids, Total Suspended -
Weekly mg/I 10
11.50 14.5
Concentration
Daily Limit Violations
Sample Location: Outfall 001 - Effluent
Violation
Unit of Limit
Calculated % Over
Date Parameter
Frequency Measure Value
Value Limit
Action
10/29/2020 BOD, 5-Day (20 Deg. C) -
Weekly mg/I 7.50
24.10 221.3
Concentration
10/7/2020 Chlorine, Total Residual
2 X week ug/I 17
22 29.4
No Action, BPJ
10/15/2020 Chlorine, Total Residual
2 X week ug/I 17
22 29.4
No Action, BPJ
10/20/2020 Solids, Total Suspended -
Weekly mg/I 15
16 6.7
Concentration
10/29/2020 Solids, Total Suspended -
Weekly mg/I 15
19.50 30.0
Concentration
Other Violations/Staff Remarks: RCB — Violation history kind of light but these were fairly significant violations. I was
thinking these guys had more violations than they
do for some reason. Recommend NOI.
Supervisor Remarks: Yes with that BOD at 200%+ over weekly limit. NOI NOV2021LVO087
Completed by:
Assistant Regional
Supervisor Sign -off:
Regional
Supervisor Sign -off: LTS
Ron Boone
Date: 02/08/2021
Date:
Date: 2/8/2021

Prior 12-Month Enforcement Histor
Permit Number: NCO032131
Report Period: October 2020
Limit Violation
Sample Location:
Outfall 001 - Effluent
Violation Report
Violation
Date Period
Parameter
Type
NOD NOV CPA
4/14/2020 4-2020
BOD, 5-Day (20 Deg. C) -
Daily Maximum
NOV-2020-LV-0486 LV-2020-0270
Concentration
Exceeded
4/21/2020 4-2020
BOD, 5-Day (20 Deg. C) -
Daily Maximum
NOV-2020-LV-0486 LV-2020-0270
Concentration
Exceeded
4/30/2020 4-2020
BOD, 5-Day (20 Deg. C) -
Monthly Average
NOV-2020-LV-0486 LV-2020-0270
Concentration
Exceeded