COKEVILLE WASTEWATER TREATMENT PLANT
NPDES ID: WY0021032
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 5 reporting violations.
Violations
March 31, 2026
pH
0% over limit
Discharged 7.45 SU against a permitted limit of 9 SU (INST MAX)
DMR, Limited - Overdue
BOD, 5-day, percent removal
0% over limit
Discharged 84 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
Temperature, water deg. centigrade
0% over limit
Discharged 5.3 deg C against a permitted limit of 0 deg C (DAILY AV)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.45 SU against a permitted limit of 6.5 SU (INST MIN)
DMR, Limited - Overdue
February 28, 2026
BOD, 5-day, percent removal
0% over limit
Discharged 86 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
Solids, suspended percent removal
293% over limit
Discharged 41 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, suspended percent removal
327% over limit
Discharged 36 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
December 31, 2025
BOD, 5-day, percent removal
0% over limit
Discharged 82 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
Solids, suspended percent removal
60% over limit
Discharged 76 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Temperature, water deg. centigrade
0% over limit
Discharged 12.3 deg C against a permitted limit of 0 deg C (DAILY AV)
DMR, Monitor Only - Overdue
November 30, 2025
BOD, 5-day, percent removal
0% over limit
Discharged 94 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
October 31, 2025
BOD, 5-day, percent removal
0% over limit
Discharged 88 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 3.83 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Overdue
September 30, 2025
BOD, 5-day, percent removal
0% over limit
Discharged 96 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
Temperature, water deg. centigrade
0% over limit
Discharged 19.6 deg C against a permitted limit of 0 deg C (DAILY AV)
DMR, Monitor Only - Overdue
August 31, 2025
BOD, 5-day, percent removal
0% over limit
Discharged 85 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
Solids, suspended percent removal
187% over limit
Discharged 57 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
July 31, 2025
BOD, 5-day, percent removal
31% over limit
Discharged 54 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
BOD, 5-day, percent removal
31% over limit
Discharged 54 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
E. coli
Limit violation
Discharged 2400 MPN/100mL against a permitted limit of 576 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
0% over limit
Discharged 8.45 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Overdue
Solids, suspended percent removal
93% over limit
Discharged 71 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
June 30, 2025
BOD, 5-day, percent removal
103% over limit
Discharged 29 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
BOD, 5-day, percent removal
103% over limit
Discharged 29 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
Temperature, water deg. centigrade
0% over limit
Discharged 21.5 deg C against a permitted limit of 0 deg C (DAILY AV)
DMR, Monitor Only - Overdue
Solids, suspended percent removal
567% over limit
Discharged 0 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.9 SU against a permitted limit of 0 SU (INST MAX)
DMR, Monitor Only - Overdue
May 31, 2025
BOD, 5-day, percent removal
0% over limit
Discharged 92 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
April 30, 2025
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 630 MPN/100mL (MO GEOMN)
DMR, Limited - Overdue
Solids, suspended percent removal
116% over limit
Discharged 67.6 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
March 31, 2025
BOD, 5-day, percent removal
6% over limit
Discharged 63 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
Flow
0% over limit
Discharged 0.081 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, suspended percent removal
567% over limit
Discharged 0 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.4 SU against a permitted limit of 0 SU (INST MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 8.1 SU against a permitted limit of 0 SU (INST MIN)
DMR, Monitor Only - Overdue
February 28, 2025
Solids, suspended percent removal
200% over limit
Discharged 55 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Flow
0% over limit
Discharged 0.1 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
January 31, 2025
Flow
0% over limit
Discharged 0.202 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
December 31, 2024
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Flow
0% over limit
Discharged 0.058 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
November 30, 2024
Solids, suspended percent removal
60% over limit
Discharged 76 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Flow
0% over limit
Discharged 0.056 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
October 31, 2024
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Flow
0% over limit
Discharged 0.046 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
September 30, 2024
Temperature, water deg. centigrade
0% over limit
Discharged 14.2 deg C against a permitted limit of 0 deg C (DAILY AV)
DMR, Monitor Only - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
August 31, 2024
Solids, total suspended
0% over limit
Discharged 10 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 10 mg/L against a permitted limit of 0 mg/L (WKLY AVG)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 6.02 mg/L against a permitted limit of 51.98 mg/L (DAILY MX)
DMR, Limited - Overdue
E. coli
456% over limit
Discharged 700.49 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Numeric Violation
E. coli
320% over limit
Discharged 2420 MPN/100mL against a permitted limit of 576 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 10 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Solids, suspended percent removal
567% over limit
Discharged 0 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Overdue
Solids, suspended percent removal
567% over limit
Discharged 0 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 22 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, percent removal
186% over limit
Discharged 0 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Overdue
BOD, 5-day, percent removal
186% over limit
Discharged 0 % against a permitted limit of 65 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 8 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 8 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
29% over limit
Discharged 58 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
29% over limit
Discharged 58 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 58 mg/L against a permitted limit of 90 mg/L (DAILY MX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 6.02 mg/L against a permitted limit of 15.17 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 22 mg/L against a permitted limit of 90 mg/L (DAILY MX)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 8 mg/L against a permitted limit of 0 mg/L (WKLY AVG)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
93% over limit
Discharged 58 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
93% over limit
Discharged 58 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 22 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (21 minutes ago)