Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
THOMPSON CREEK MINE
Quick Summary
- •Released 314,375 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- Address
-
SQUAW CREEK RD
CLAYTON, ID 83227
View on map ↗ - County
- CUSTER County
- Industry
- Mining, Quarrying, and Oil and Gas Extraction
- NAICS (North American Industry Classification)
- 212299
- Inspections
- 2 · last Oct 1, 2025
- Total Penalties
- $0 · last Mar 26, 2010
- Registry ID
- 110000600430
How This Compares
#16
of 114 TRI reporters in ID
#76
of 555 TRI reporters in Mining, Quarrying, and Oil and Gas Extraction
Ranked by most recent year's total TRI releases.
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
0
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
9
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
Qtrs Non-Compliant
Qtrs Non-Compliant
TRI Toxic Chemical Releases
Annual pounds of each toxic chemical released to air, water, and land, as reported to the EPA Toxic Release Inventory. Carcinogen (♦) and PFAS designations are per EPA and IARC classifications.
Emissions Trend (2015–2024)
+898% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 104,614 | — |
| 2016 | 157,603 | +51% |
| 2017 | 314,375 | +99% |
| 2018 | 248,283 | -21% |
| 2020 | 282,443 | — |
| 2021 | 161,241 | -43% |
| 2022 | 62,219 | -61% |
| 2023 | 175,224 | +182% |
| 2024 | 1,043,544 | +496% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 1,043,544 | 55 | 16,758 | 1,026,731 | — |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 175,224 | 6 | 29,253 | 145,965 | — |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Copper compounds | 61,832 | — | — | 61,832 | — | |
| Lead compounds | 387 | 0 | — | 387 | — |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Copper compounds | 160,001 | — | — | 160,001 | — | |
| Lead compounds | 1,240 | 0 | — | 1,240 | — |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Copper compounds | 280,003 | — | — | 280,003 | — | |
| Lead compounds | 2,440 | 0 | — | 2,440 | — |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Copper compounds | 240,023 | 1 | — | 240,022 | — | |
| Lead compounds | 7,551 | 0 | — | 7,550 | — | |
| Polycyclic aromatic compounds | 709 | 0 | — | 709 | — | ♦ Carcinogen |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Copper compounds | 310,024 | — | 1 | 310,023 | — | |
| Lead compounds | 4,351 | 1 | — | 4,351 | — |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Copper compounds | 154,254 | — | — | 154,254 | — | |
| Lead compounds | 3,349 | — | — | 3,349 | — |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Copper compounds | 67,435 | 0 | — | 67,435 | — | |
| Lead compounds | 36,786 | 0 | — | 36,786 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 392 | — | — | 392 | — |
Waste Management & Recycling
How this facility manages toxic chemicals beyond direct releases — through recycling, energy recovery, and on-site or off-site treatment. Data from the most recent TRI reporting year. Quantities in pounds.
| Chemical | Released | Recycled | Energy Recovery | Treated |
|---|
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| cwa | Schedule Event unachieved and not reported | Dec 31, 2025 | Jan 31, 2026 | Resolved |
| cwa | Schedule Event unachieved and not reported | Oct 31, 2025 | Dec 1, 2025 | Resolved |
| cwa | Schedule Event unachieved and not reported | Dec 31, 2024 | Jan 31, 2025 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2024 | May 1, 2024 | Resolved |
| cwa | Schedule Event unachieved and not reported | Mar 31, 2023 | May 1, 2023 | Resolved |
| cwa | Schedule Event unachieved and not reported | Aug 31, 2022 | Oct 1, 2022 | Resolved |
| cwa | Schedule Event achieved late but reported | Mar 31, 2022 | — | Open |
| cwa | Schedule Event achieved late but reported | Aug 31, 2021 | — | Open |
| cwa | Schedule Event unachieved but reported | Aug 31, 2021 | Aug 24, 2024 | Resolved |
| cwa | Schedule Event unachieved and not reported | Aug 31, 2021 | Aug 24, 2024 | Resolved |
| cwa | Schedule Event reported late | Aug 31, 2021 | — | Open |
| cwa | Schedule Event unachieved and not reported | Mar 31, 1999 | Aug 20, 1999 | Resolved |
| cwa | Schedule Event achieved late but reported | Mar 31, 1999 | — | Open |
| cwa | Schedule Event achieved late but reported | Dec 30, 1998 | — | Open |
| cwa | Schedule Event unachieved and not reported | Dec 30, 1998 | Feb 17, 1999 | Resolved |
| cwa | Schedule Event unachieved and not reported | Sep 30, 1998 | Nov 17, 1998 | Resolved |
| cwa | Schedule Event achieved late but reported | Sep 30, 1998 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jun 30, 1998 | Nov 17, 1998 | Resolved |
| cwa | Schedule Event achieved late but reported | Jun 30, 1998 | — | Open |
| cwa | Schedule Event unachieved and not reported | Mar 30, 1998 | Aug 7, 1998 | Resolved |
| cwa | Schedule Event achieved late but reported | Mar 30, 1998 | — | Open |
| cwa | Schedule Event achieved late but reported | Dec 30, 1997 | — | Open |
| cwa | Schedule Event unachieved and not reported | Dec 30, 1997 | Jun 1, 1998 | Resolved |
| cwa | Schedule Event achieved late but reported | Jun 30, 1997 | — | Open |
| cwa | Schedule Event achieved late but reported | Dec 30, 1996 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jun 30, 1993 | Oct 29, 1993 | Resolved |
| cwa | Schedule Event achieved late but reported | Jun 30, 1993 | — | Open |
| cwa | Schedule Event achieved late but reported | Sep 30, 1992 | — | Open |
| cwa | Schedule Event unachieved and not reported | Sep 30, 1992 | Feb 25, 1993 | Resolved |
| cwa | Schedule Event unachieved and not reported | Sep 30, 1991 | Jan 9, 1992 | Resolved |
| cwa | Schedule Event achieved late but reported | Sep 30, 1991 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jun 30, 1991 | Jan 9, 1992 | Resolved |
| cwa | Schedule Event achieved late but reported | Jun 30, 1991 | — | Open |
| cwa | Schedule Event unachieved and not reported | Dec 31, 1990 | May 29, 1991 | Resolved |
| cwa | Schedule Event achieved late but reported | Dec 31, 1990 | — | Open |
| cwa | Schedule Event achieved late but reported | Sep 30, 1990 | — | Open |
| cwa | Schedule Event achieved late but reported | Jun 30, 1990 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jun 30, 1990 | Nov 1, 1990 | Resolved |
| cwa | Schedule Event achieved late but reported | Mar 31, 1990 | — | Open |
| cwa | Schedule Event unachieved and not reported | Dec 31, 1989 | Feb 12, 1990 | Resolved |
| cwa | Schedule Event achieved late but reported | Dec 31, 1989 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jun 30, 1989 | Aug 14, 1989 | Resolved |
| cwa | Schedule Event achieved late but reported | Jun 30, 1989 | — | Open |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| Solids, total suspended | DMR, Limited - Numeric Violation | 34.00 mg/L | 30.00 | +13% | Feb 2025 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.05 mg/L | 0.04 | +10% | Jun 2017 | Open |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
Administrative - Formal
· Case 10-2010-0070 · Mar 26, 2010
$2,750
Administrative - Formal
· Case 10-2007-0210 · Sep 12, 2007