MOUNTAIN VIEW WASTEWATER LAGOON
NPDES ID: WY0022896
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: 1 effluent violation.
Violations
March 31, 2026
Nitrogen, ammonia total [as N]
33% over limit
Discharged 29 mg/L against a permitted limit of 21.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
98% over limit
Discharged 89 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
197% over limit
Discharged 89 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, 5-day, 20 deg. C
200% over limit
Discharged 90 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
39% over limit
Discharged 30.2 mg/L against a permitted limit of 21.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
100% over limit
Discharged 90 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
23% over limit
Discharged 26.9 mg/L against a permitted limit of 21.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
207% over limit
Discharged 92 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
104% over limit
Discharged 92 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Phosphate, ortho [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Nitrite + Nitrate total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
November 30, 2025
Nitrogen, ammonia total [as N]
22% over limit
Discharged 26.6 mg/L against a permitted limit of 21.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
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, total suspended
0% over limit
Discharged 1720 mg/L against a permitted limit of 0 mg/L (WKLY AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 1720 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 1720 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
August 31, 2025
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
66% over limit
Discharged 17.9 mg/L against a permitted limit of 10.8 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
E. coli
0% over limit
Discharged 1.7 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Overdue
May 31, 2025
E. coli
0% over limit
Discharged 1 MPN/100mL against a permitted limit of 235 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 1 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 19.1 mg/L against a permitted limit of 30 mg/L (DAILY MX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
69% over limit
Discharged 19.1 mg/L against a permitted limit of 11.3 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
69% over limit
Discharged 19.1 mg/L against a permitted limit of 11.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Produced water, oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Overdue
April 30, 2025
Nitrogen, ammonia total [as N]
9% over limit
Discharged 13.5 mg/L against a permitted limit of 12.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
BOD, 5-day, 20 deg. C
0% over limit
Discharged 978 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
BOD, 5-day, percent removal
0% over limit
Discharged 98 % against a permitted limit of 0 % (MO AV MN)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 978 mg/L against a permitted limit of 0 mg/L (WKLY AVG)
DMR, Monitor Only - Overdue
Solids, total dissolved
0% over limit
Discharged 616 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 19.1 mg/L against a permitted limit of 30 mg/L (DAILY MX)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 387 MPN/100mL against a permitted limit of 630 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
54% over limit
Discharged 19.1 mg/L against a permitted limit of 12.4 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
54% over limit
Discharged 19.1 mg/L against a permitted limit of 12.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
0% over limit
Discharged 978 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
January 31, 2025
Solids, total dissolved
0% over limit
Discharged 199.54 kg/d against a permitted limit of 907 kg/d (DAILY MX)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
45% over limit
Discharged 18 mg/L against a permitted limit of 12.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Phosphorus, total [as P]
0% over limit
Discharged 3.3 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Produced water, oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
11% over limit
Discharged 13.8 mg/L against a permitted limit of 12.4 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total dissolved
0% over limit
Discharged 145.12 kg/d against a permitted limit of 907 kg/d (DAILY MX)
DMR, Limited - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Nitrogen, Kjeldahl, total [as N]
0% over limit
Discharged 28.6 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
November 30, 2024
Solids, total dissolved
0% over limit
Discharged 217.68 kg/d against a permitted limit of 907 kg/d (DAILY MX)
DMR, Limited - Overdue
October 31, 2024
Solids, total dissolved
0% over limit
Discharged 181.4 kg/d against a permitted limit of 907 kg/d (DAILY MX)
DMR, Limited - Overdue
Produced water, oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Overdue
September 30, 2024
Produced water, oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 236 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total dissolved
0% over limit
Discharged 281.17 kg/d against a permitted limit of 907 kg/d (DAILY MX)
DMR, Limited - Overdue
BOD, 5-day, percent removal
0% over limit
Discharged 97 % against a permitted limit of 0 % (MO AV MN)
DMR, Monitor Only - Overdue
August 31, 2024
E. coli
0% over limit
Discharged 68 MPN/100mL against a permitted limit of 235 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 217.68 kg/d against a permitted limit of 907 kg/d (DAILY MX)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 4.2 MPN/100mL against a permitted limit of 126 MPN/100mL (MO GEOMN)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 208 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Produced water, oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Overdue
July 31, 2024
Solids, total dissolved
0% over limit
Discharged 260.309 kg/d against a permitted limit of 907 kg/d (DAILY MX)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 88 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)