WINIFRED DOMESTIC WWTF
NPDES ID: MT0031453
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
This quarter: 15 effluent violations, 1 compliance schedule violation.
Violations
May 31, 2026
E. coli, MTEC-MF
1448% over limit
Discharged 3900 MPN/100mL against a permitted limit of 252 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
153% over limit
Discharged 114 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
2995% over limit
Discharged 3900 MPN/100mL against a permitted limit of 126 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
37% over limit
Discharged 41 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
110% over limit
Discharged 68.5 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
471% over limit
Discharged 14.3 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
280% over limit
Discharged 114 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
BOD, 5-day, 20 deg. C
44% over limit
Discharged 65 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
336% over limit
Discharged 34.6 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
15773% over limit
Discharged 40000 MPN/100mL against a permitted limit of 252 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
13% over limit
Discharged 51 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
31646% over limit
Discharged 40000 MPN/100mL against a permitted limit of 126 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
117% over limit
Discharged 65 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
557% over limit
Discharged 1.5 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
70% over limit
Discharged 51 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
BOD, 5-day, percent removal
693% over limit
Discharged -19 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
20535% over limit
Discharged 130000 MPN/100mL against a permitted limit of 630 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
10217% over limit
Discharged 130000 MPN/100mL against a permitted limit of 1260 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
173% over limit
Discharged 59 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
Limit violation
Discharged 86 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
Limit violation
Discharged 86 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
30% over limit
Discharged 39 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
E. coli, MTEC-MF
1487% over limit
Discharged 10000 MPN/100mL against a permitted limit of 630 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
694% over limit
Discharged 10000 MPN/100mL against a permitted limit of 1260 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
627% over limit
Discharged -9 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
167% over limit
Discharged 120 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
300% over limit
Discharged 120 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
E. coli, MTEC-MF
120535% over limit
Discharged 760000 MPN/100mL against a permitted limit of 630 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
42% over limit
Discharged 64 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
205% over limit
Discharged 54.3 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
60217% over limit
Discharged 760000 MPN/100mL against a permitted limit of 1260 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
113% over limit
Discharged 64 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
34% over limit
Discharged 79.9 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
23% over limit
Discharged 37 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
3% over limit
Discharged 84.5 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
26090% over limit
Discharged 330000 MPN/100mL against a permitted limit of 1260 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
52281% over limit
Discharged 330000 MPN/100mL against a permitted limit of 630 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
November 30, 2025
Solids, total suspended
147% over limit
Discharged 74 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
51% over limit
Discharged 77.3 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
8630% over limit
Discharged 55000 MPN/100mL against a permitted limit of 630 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
64% over limit
Discharged 74 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
4265% over limit
Discharged 55000 MPN/100mL against a permitted limit of 1260 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
October 31, 2025
E. coli, MTEC-MF
14583% over limit
Discharged 37000 MPN/100mL against a permitted limit of 252 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
42% over limit
Discharged 5.14381996 kg/d against a permitted limit of 3.63199997 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
27% over limit
Discharged 57 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
602% over limit
Discharged 316 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
90% over limit
Discharged 57 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
29265% over limit
Discharged 37000 MPN/100mL against a permitted limit of 126 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
375% over limit
Discharged 28.75 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
2240% over limit
Discharged -251 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
953% over limit
Discharged 316 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
114% over limit
Discharged 5.14381996 kg/d against a permitted limit of 2.40619998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Solids, total suspended
83% over limit
Discharged 55 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
5932% over limit
Discharged 7600 MPN/100mL against a permitted limit of 126 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
2916% over limit
Discharged 7600 MPN/100mL against a permitted limit of 252 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
160% over limit
Discharged 61 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
22% over limit
Discharged 55 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
April 30, 2025
BOD, 5-day, 20 deg. C
40% over limit
Discharged 42 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
7043% over limit
Discharged 18000 MPN/100mL against a permitted limit of 252 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
14186% over limit
Discharged 18000 MPN/100mL against a permitted limit of 126 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
237% over limit
Discharged 49.4 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
178% over limit
Discharged 58.3 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
33% over limit
Discharged 40 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, suspended percent removal
17% over limit
Discharged 82.4 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
3% over limit
Discharged 31 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, suspended percent removal
131% over limit
Discharged 65.3 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
29265% over limit
Discharged 370000 MPN/100mL against a permitted limit of 1260 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
400% over limit
Discharged 150 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
58630% over limit
Discharged 370000 MPN/100mL against a permitted limit of 630 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
233% over limit
Discharged 150 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
20% over limit
Discharged 36 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
179% over limit
Discharged 58.1 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
17% over limit
Discharged 2.81479998 kg/d against a permitted limit of 2.40619998 kg/d (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Solids, suspended percent removal
146% over limit
Discharged 63.1 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
117% over limit
Discharged 65 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
249% over limit
Discharged 47.7 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
44% over limit
Discharged 65 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
52281% over limit
Discharged 330000 MPN/100mL against a permitted limit of 630 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
26090% over limit
Discharged 330000 MPN/100mL against a permitted limit of 1260 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Solids, total suspended
127% over limit
Discharged 102 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
1707% over limit
Discharged -171 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
463% over limit
Discharged 15.6 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
694% over limit
Discharged 10000 MPN/100mL against a permitted limit of 1260 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
240% over limit
Discharged 102 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
1487% over limit
Discharged 10000 MPN/100mL against a permitted limit of 630 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
November 30, 2024
Solids, suspended percent removal
620% over limit
Discharged -8 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
60% over limit
Discharged 48 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
53% over limit
Discharged 77 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
3075% over limit
Discharged 20000 MPN/100mL against a permitted limit of 630 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
198% over limit
Discharged 134 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
1487% over limit
Discharged 20000 MPN/100mL against a permitted limit of 1260 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
7% over limit
Discharged 48 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
347% over limit
Discharged 134 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)