INMET MINING LLC [CONSOLIDATED]
NPDES ID: KYGE41204
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: 3 effluent violations, 1 single-event violation.
Violations
May 31, 2026
Solids, total suspended
94% over limit
Discharged 68 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
16% over limit
Discharged 81 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
77% over limit
Discharged 62 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
20% over limit
Discharged 42 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Precipitation volume
0% over limit
Discharged 0 in/d against a permitted limit of 0 in/d (MAXIMUM)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Precipitation volume
0% over limit
Discharged 0 in/d against a permitted limit of 0 in/d (MAXIMUM)
DMR, Monitor Only - Overdue
Date of Storm Event
0% over limit
Discharged 0 date against a permitted limit of 0 date (VALUE)
DMR, Monitor Only - Overdue
Date of Storm Event
0% over limit
Discharged 0 date against a permitted limit of 0 date (VALUE)
DMR, Monitor Only - Overdue
Specific conductance
0% over limit
Discharged 0 umho/cm against a permitted limit of 0 umho/cm (MO AVG)
DMR, Monitor Only - Overdue
Precipitation volume
0% over limit
Discharged 0 in/d against a permitted limit of 0 in/d (MAXIMUM)
DMR, Monitor Only - Overdue
Sulfate, total [as SO4]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Iron, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Overdue
Iron, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Overdue
Manganese, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Overdue
Manganese, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Overdue
Specific conductance
0% over limit
Discharged 0 umho/cm against a permitted limit of 0 umho/cm (DAILY MX)
DMR, Monitor Only - Overdue
Sulfate, total [as SO4]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Date of Sample Collection
0% over limit
Discharged 0 date against a permitted limit of 0 date (VALUE)
DMR, Monitor Only - Overdue
Date of Sample Collection
0% over limit
Discharged 0 date against a permitted limit of 0 date (VALUE)
DMR, Monitor Only - Overdue
Manganese, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Date of Storm Event
0% over limit
Discharged 0 date against a permitted limit of 0 date (VALUE)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 0 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
Sulfate, total [as SO4]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Solids, settleable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0005 mg/L (MAXIMUM)
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 SU (MINIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Overdue
Iron, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Overdue
Manganese, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Overdue
Sulfate, total [as SO4]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MX)
DMR, Monitor Only - Overdue
Date of Sample Collection
0% over limit
Discharged 0 date against a permitted limit of 0 date (VALUE)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Overdue
Solids, settleable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0005 mg/L (MAXIMUM)
DMR, Limited - Overdue
Specific conductance
0% over limit
Discharged 0 umho/cm against a permitted limit of 0 umho/cm (DAILY MX)
DMR, Monitor Only - Overdue
Solids, settleable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0005 mg/L (MAXIMUM)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
Date of Storm Event
0% over limit
Discharged 0 date against a permitted limit of 0 date (VALUE)
DMR, Monitor Only - Overdue
Date of Sample Collection
0% over limit
Discharged 0 date against a permitted limit of 0 date (VALUE)
DMR, Monitor Only - Overdue
Iron, total recoverable
0% over limit
Discharged 0 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Overdue
Precipitation volume
0% over limit
Discharged 0 in/d against a permitted limit of 0 in/d (MAXIMUM)
DMR, Monitor Only - Overdue
Solids, settleable
0% over limit
Discharged 0 mg/L against a permitted limit of 0.0005 mg/L (MAXIMUM)
DMR, Limited - Overdue
Specific conductance
0% over limit
Discharged 0 umho/cm against a permitted limit of 0 umho/cm (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
251% over limit
Discharged 123 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Iron, total recoverable
60% over limit
Discharged 6.4 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
239% over limit
Discharged 237 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Iron, total recoverable
8% over limit
Discharged 4.3 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
236% over limit
Discharged 235 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
253% over limit
Discharged 123.5 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Iron, total recoverable
13% over limit
Discharged 3.4 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, total suspended
239% over limit
Discharged 118.5 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
146% over limit
Discharged 86 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
24% over limit
Discharged 87 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Iron, total recoverable
30% over limit
Discharged 5.2 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
207% over limit
Discharged 215 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
61% over limit
Discharged 113 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
90% over limit
Discharged 66.5 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Toxicity, Chronic
80% over limit
Discharged 1.8 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
56% over limit
Discharged 54.5 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
27% over limit
Discharged 89 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Solids, total suspended
33% over limit
Discharged 46.5 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Solids, total suspended
14% over limit
Discharged 80 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
4% over limit
Discharged 36.4 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
60% over limit
Discharged 112 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
86% over limit
Discharged 65 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Solids, total suspended
29% over limit
Discharged 45 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
17% over limit
Discharged 41 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Toxicity, Chronic
1700% over limit
Discharged 18 toxic against a permitted limit of 1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
March 31, 2025
Selenium, dry weight
0% over limit
Discharged 0 mg/L against a permitted limit of 11.3 mg/L (MAXIMUM)
DMR, Limited - Overdue
Selenium, total recoverable
0% over limit
Discharged 0.001 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
Selenium, dry weight
0% over limit
Discharged 0 mg/L against a permitted limit of 11.3 mg/L (MAXIMUM)
DMR, Limited - Overdue
Selenium, dry weight
0% over limit
Discharged 0 mg/L against a permitted limit of 8.6 mg/L (MAXIMUM)
DMR, Limited - Overdue
Selenium, dry weight
0% over limit
Discharged 0 mg/L against a permitted limit of 8.6 mg/L (MAXIMUM)
DMR, Limited - Overdue
December 31, 2024
Iron, total recoverable
5253% over limit
Discharged 214.1 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
251% over limit
Discharged 246 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Iron, total recoverable
45% over limit
Discharged 5.8 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Iron, total recoverable
4230% over limit
Discharged 129.9 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Iron, total recoverable
10% over limit
Discharged 3.3 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Manganese, total recoverable
10% over limit
Discharged 2.2 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
8243% over limit
Discharged 2920 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
6043% over limit
Discharged 4300 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
303% over limit
Discharged 141 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
40% over limit
Discharged 49 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Solids, total suspended
163% over limit
Discharged 92 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
1% over limit
Discharged 71 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
26% over limit
Discharged 44 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
116% over limit
Discharged 151 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2024
Solids, total suspended
83% over limit
Discharged 64 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
29% over limit
Discharged 90 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2024
Iron, total recoverable
30% over limit
Discharged 3.9 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
431% over limit
Discharged 186 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
170% over limit
Discharged 189 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2024
Iron, total recoverable
93% over limit
Discharged 5.8 mg/L against a permitted limit of 3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
604% over limit
Discharged 493 mg/L against a permitted limit of 70 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
840% over limit
Discharged 329 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Iron, total recoverable
123% over limit
Discharged 8.9 mg/L against a permitted limit of 4 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
July 31, 2024
Solids, total suspended
20% over limit
Discharged 42 mg/L against a permitted limit of 35 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (22 days ago)