ENGLISH LEASE, BOUNDARY BUTTE
NPDES ID: NN0020133
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
Violations
December 31, 2025
Selenium, total recoverable
25% over limit
Discharged 0.0025 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Selenium, total recoverable
105% over limit
Discharged 0.0041 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Selenium, total recoverable
75% over limit
Discharged 0.0035 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Selenium, total recoverable
30% over limit
Discharged 0.0026 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Selenium, total recoverable
225% over limit
Discharged 0.0065 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Selenium, total recoverable
160% over limit
Discharged 0.0052 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Selenium, total recoverable
110% over limit
Discharged 0.0042 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Selenium, total recoverable
140% over limit
Discharged 0.0048 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Selenium, total recoverable
100% over limit
Discharged 0.004 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 kg/d against a permitted limit of 5.31179996 kg/d (HI WK AV)
DMR, Limited - Overdue
Selenium, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 kg/d against a permitted limit of 3.81359997 kg/d (MO AVG)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 1200 mg/L (DAILY MX)
DMR, Limited - Overdue
Phenanthrene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0063 mg/L (MO AVG)
DMR, Limited - Overdue
Oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 kg/d against a permitted limit of 10.62359991 kg/d (HI WK AV)
DMR, Limited - Overdue
Phenanthrene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0063 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 10.62359991 kg/d (HI WK AV)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 3.81359997 kg/d (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 35 mg/L (HI WK AV)
DMR, Limited - Overdue
Selenium, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Oil and grease
0% over limit
Discharged 0 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Overdue
Phenanthrene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.03 mg/L (DAILY MX)
DMR, Limited - Overdue
Selenium, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Overdue
Phenanthrene
0% over limit
Discharged 0 mg/L against a permitted limit of 0.03 mg/L (DAILY MX)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 7.58179994 kg/d (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 5.31179996 kg/d (HI WK AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total dissolved
0% over limit
Discharged 0 mg/L against a permitted limit of 1200 mg/L (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Selenium, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.02 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow rate
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 35 mg/L (HI WK AV)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 35 mg/L (HI WK AV)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 35 mg/L (HI WK AV)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 kg/d against a permitted limit of 7.58179994 kg/d (MO AVG)
DMR, Limited - Overdue
January 31, 2025
Selenium, total recoverable
65% over limit
Discharged 0.0033 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phenanthrene
11% over limit
Discharged 0.007 mg/L against a permitted limit of 0.0063 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Selenium, total recoverable
145% over limit
Discharged 0.0049 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Selenium, total recoverable
65% over limit
Discharged 0.0033 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Selenium, total recoverable
125% over limit
Discharged 0.0045 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Selenium, total recoverable
125% over limit
Discharged 0.0045 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Selenium, total recoverable
210% over limit
Discharged 0.0062 mg/L against a permitted limit of 0.002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (5 days ago)