BIG PINEY WASTEWATER LAGOON
NPDES ID: WY0020133
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
Violations
September 30, 2025
Temperature, water deg. centigrade
0% over limit
Discharged 21.5 deg C against a permitted limit of 0 deg C (INST MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 8.31 SU against a permitted limit of 0 SU (INST MAX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 8.31 SU against a permitted limit of 0 SU (INST MIN)
DMR, Monitor Only - Overdue
August 31, 2025
pH
0% over limit
Discharged 9.5 SU against a permitted limit of 9 SU (INST MAX)
DMR, Limited - Numeric Violation
July 31, 2025
pH
0% over limit
Discharged 9.6 SU against a permitted limit of 9 SU (INST MAX)
DMR, Limited - Numeric Violation
September 30, 2024
E. coli
0% over limit
Discharged 13.3 MPN/100mL against a permitted limit of 635 MPN/100mL (MO GEOMN)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 635 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
August 31, 2024
Solids, total dissolved
0% over limit
Discharged 91 mg/L against a permitted limit of 400 mg/L (DAILY MX)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 9 MPN/100mL against a permitted limit of 635 MPN/100mL (MO GEOMN)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 746 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (4 hours ago)