Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
SMC NYE MINE SITE
Quick Summary
- •Released 450,532 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.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
5 MILES S.E. OF NYE, MT HWY. 419
NYE, MT 59061
View on map ↗ - County
- STILLWATER County
- Industry
- Mining, Quarrying, and Oil and Gas Extraction
- NAICS (North American Industry Classification)
- 212290
- Inspections
- 6 · last Sep 26, 2025
- Total Penalties
- $0
- Registry ID
- 110000595133
How This Compares
#4
of 55 TRI reporters in MT
#69
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
12
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)
-4% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 235,137 | — |
| 2016 | 350,793 | +49% |
| 2017 | 450,532 | +28% |
| 2018 | 476,395 | +6% |
| 2019 | 31 | -100% |
| 2020 | 171,210 | +552192% |
| 2021 | 477,851 | +179% |
| 2022 | 124,167 | -74% |
| 2023 | 160,554 | +29% |
| 2024 | 224,647 | +40% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Styrene | — | — | — | — | — | ♦ Carcinogen |
| Methanol | 212,188 | 250 | — | 211,938 | 57,011 | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 7,249 | — | — | 7,249 | 13,106 | |
| Lead compounds | 3,708 | 2 | — | 3,706 | 2,336 | |
| Propylene | 1,335 | 1,335 | — | — | — | |
| Nickel compounds | 92 | 92 | — | — | 432,277 | ♦ Carcinogen |
| Copper compounds | 43 | 43 | — | — | 59,430 | |
| Mercury compounds | 25 | 3 | — | 22 | 8 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 7 | 7 | — | — | 204,333 |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Styrene | — | — | — | — | — | ♦ Carcinogen |
| Methanol | 140,430 | 250 | — | 140,180 | 46,238 | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 13,339 | — | — | 13,339 | 5,848 | |
| Lead compounds | 5,513 | 2 | — | 5,511 | 2,199 | |
| Propylene | 1,090 | 1,090 | — | — | — | |
| Nickel compounds | 85 | 85 | — | — | 409,432 | ♦ Carcinogen |
| Copper compounds | 64 | 64 | — | — | 45,560 | |
| Mercury compounds | 21 | 5 | — | 17 | 5 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 11 | 11 | — | — | 489,042 |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Styrene | — | — | — | — | — | ♦ Carcinogen |
| Methanol | 108,392 | 250 | — | 108,142 | 15,235 | |
| Lead compounds | 7,884 | 3 | — | 7,881 | 2,777 | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 6,310 | — | — | 6,310 | 36,975 | |
| Propylene | 1,112 | 1,112 | — | — | — | |
| Mercury compounds | 329 | 5 | — | 324 | 6 | |
| Copper compounds | 66 | 66 | — | — | 49,729 | |
| Nickel compounds | 63 | 63 | — | — | 421,105 | ♦ Carcinogen |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 11 | 11 | — | — | 564,929 |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Propylene | — | — | — | — | — | |
| Copper compounds | — | — | — | — | 52,000 | |
| Styrene | — | — | — | — | — | ♦ Carcinogen |
| Nickel compounds | 263,464 | 33 | — | 263,431 | 377,900 | ♦ Carcinogen |
| Methanol | 191,876 | 1,000 | — | 190,876 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 16,526 | — | — | 16,526 | 1,700 | |
| Lead compounds | 5,968 | 2 | — | 5,966 | 2,790 | |
| Mercury compounds | 16 | — | — | 16 | 3 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 1 | — | — | 1 | 486,010 |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Styrene | — | — | — | — | — | ♦ Carcinogen |
| Propylene | — | — | — | — | — | |
| Methanol | 164,800 | 1,000 | — | 163,800 | — | |
| Lead compounds | 5,127 | 0 | — | 5,127 | 1,407 | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 1,150 | — | — | 1,150 | 3,900 | |
| Nickel compounds | 78 | 78 | — | — | 180,001 | ♦ Carcinogen |
| Mercury compounds | 49 | — | — | 49 | 14 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 5 | — | — | 5 | 120,000 | |
| Copper compounds | 1 | — | — | 1 | 32,008 |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Styrene | — | — | — | — | — | ♦ Carcinogen |
| Mercury compounds | 31 | 0 | — | 31 | 7 |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Diisocyanates | — | — | — | — | — | |
| Propylene | — | — | — | — | — | |
| Styrene | — | — | — | — | — | ♦ Carcinogen |
| Nickel compounds | 240,964 | 142 | — | 240,822 | 220,000 | ♦ Carcinogen |
| Methanol | 224,498 | 498 | — | 224,000 | — | |
| Lead compounds | 7,074 | 1 | — | 7,073 | 4,107 | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 3,100 | — | — | 3,100 | 7,100 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 542 | 2 | — | 540 | 140,000 | |
| Copper compounds | 211 | 1 | — | 210 | 54,000 | |
| Mercury compounds | 6 | — | — | 6 | 4 |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Propylene | — | — | — | — | — | |
| Diisocyanates | — | — | — | — | — | |
| Styrene | — | — | — | — | — | ♦ Carcinogen |
| Nickel compounds | 220,492 | 112 | — | 220,380 | 180,000 | ♦ Carcinogen |
| Methanol | 217,477 | 477 | — | 217,000 | — | |
| Lead compounds | 7,423 | 1 | — | 7,422 | 3,317 | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 4,800 | — | — | 4,800 | 8,700 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 242 | 2 | — | 240 | 110,000 | |
| Copper compounds | 91 | 1 | — | 90 | 43,000 | |
| Mercury compounds | 7 | — | — | 7 | 3 |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Propylene | — | — | — | — | — | |
| Methanol | 220,387 | 387 | — | 220,000 | — | |
| Nickel compounds | 120,693 | 73 | — | 120,620 | 120,000 | ♦ Carcinogen |
| Lead compounds | 6,765 | 1 | — | 6,764 | 2,181 | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 2,400 | — | — | 2,400 | 11,000 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 391 | 1 | — | 390 | 76,000 | |
| Copper compounds | 150 | — | — | 150 | 30,000 | |
| Mercury compounds | 8 | — | — | 8 | 3 |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Styrene | — | — | — | — | — | ♦ Carcinogen |
| Propylene | — | — | — | — | — | |
| Methanol | 221,386 | 386 | — | 221,000 | — | |
| Lead compounds | 8,137 | 1 | — | 8,137 | 3,230 | |
| Nickel compounds | 2,605 | 5 | — | 2,600 | 160,000 | ♦ Carcinogen |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 1,602 | 2 | — | 1,600 | 100,000 | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 780 | — | — | 780 | 7,900 | |
| Copper compounds | 620 | — | — | 620 | 38,000 | |
| Mercury compounds | 7 | — | — | 7 | 3 |
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 |
|---|---|---|---|---|
| Nickel compounds | — | 157,859 | — | — |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | 330,000 |
Off-Site Transfer Destinations
Facilities to which toxic chemicals were transferred for disposal, recycling, energy recovery, or treatment during the most recent TRI reporting year. Quantities in pounds.
| Destination | Chemical | Disposal | Recycling | Energy Rec. | Treatment |
|---|---|---|---|---|---|
|
STILLWATER MINE - HERTZLER
NYE, MT
|
Mercury compounds | — | — | — | — |
|
STILLWATER MINE - HERTZLER
NYE, MT
|
Nickel compounds | — | — | — | — |
|
STILLWATER MINE - HERTZLER
NYE, MT
|
Chromium compounds (except for chromite ore mined in the Transvaal Region) | — | — | — | — |
|
STILLWATER MINE - HERTZLER
NYE, MT
|
Methanol | — | — | — | — |
|
STILLWATER MINE - HERTZLER
NYE, MT
|
Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 2,901 | — | — | — |
|
STILLWATER MINE - HERTZLER
NYE, MT
|
Copper compounds | — | — | — | — |
|
STILLWATER MINE - HERTZLER
NYE, MT
|
Lead compounds | — | — | — | — |
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 | Permit Violations - Violation Specified in Comment | Mar 5, 2025 | Jun 18, 2025 | Resolved |
| cwa | Effluent Violations - Unapproved Bypass | Mar 5, 2025 | Jun 18, 2025 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Mar 5, 2025 | Jun 18, 2025 | Resolved |
| cwa | Permit Violations - Application Incomplete | Mar 5, 2025 | Jun 18, 2025 | Resolved |
| cwa | Monitoring Violations - Invalid/Unrepresentative Sample | Mar 5, 2025 | Jun 18, 2025 | Resolved |
| cwa | Management Practice Violations - Failure to Maintain Records | Mar 5, 2025 | Jun 18, 2025 | Resolved |
| cwa | Schedule Event achieved late but reported | Feb 15, 2025 | — | Open |
| cwa | Schedule Event unachieved but reported | Feb 15, 2024 | Apr 19, 2024 | Resolved |
| cwa | Schedule Event reported late | Feb 15, 2024 | — | Open |
| cwa | Schedule Event achieved late but reported | Feb 15, 2024 | — | Open |
| cwa | Schedule Event unachieved and not reported | Feb 15, 2024 | Apr 19, 2024 | Resolved |
| cwa | Reporting Violations - Improper/ Incorrect Reporting | Aug 4, 2022 | Oct 27, 2022 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 28, 2021 | Aug 1, 2023 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jan 28, 2020 | Aug 1, 2023 | Resolved |
| cwa | WW Storm Water Non-Construction - Failure to properly install/implement BMPs | Aug 8, 2013 | Aug 8, 2013 | Resolved |
| cwa | WW Storm Water Non-Construction - Failure to develop any or adequate SWPPP/SWMP | Aug 8, 2013 | Oct 9, 2013 | Resolved |
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 |
|---|---|---|---|---|---|---|
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.01 | +124% | Dec 2025 | Open |
| Lead, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +20% | Dec 2025 | Open |
| Lead, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +20% | Dec 2025 | Open |
| Lead, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +50% | Dec 2025 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +177% | Dec 2025 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.01 | +124% | Dec 2025 | Open |
| Lead, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +20% | Mar 2025 | Open |
| Lead, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +20% | Mar 2025 | Open |
| Lead, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +10% | Sep 2024 | Open |
| Lead, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +10% | Sep 2024 | Open |
| Lead, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +38% | Sep 2024 | Open |
| Solids, total suspended | DMR, Limited - Overdue | 159.30 mg/L | 100.00 | +59% | Jun 2024 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 26.87 mg/L | 1.00 | +2,587% | Jun 2024 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 2.38 mg/L | 1.00 | +138% | Jun 2024 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 2.52 mg/L | 1.00 | +152% | Jun 2024 | Resolved |
| Copper, total [as Cu] | DMR, Limited - Overdue | 0.05 mg/L | 0.01 | +840% | Jun 2024 | Resolved |
| Copper, total [as Cu] | DMR, Limited - Overdue | 0.04 mg/L | 0.01 | +600% | Jun 2024 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.13 mg/L | 0.08 | +70% | May 2024 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.07 mg/L | 0.05 | +62% | May 2024 | Resolved |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.13 mg/L | 0.08 | +70% | May 2024 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.13 mg/L | 0.10 | +34% | May 2024 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.11 mg/L | 0.08 | +46% | Apr 2024 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.11 mg/L | 0.08 | +46% | Apr 2024 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.08 mg/L | 0.05 | +77% | Apr 2024 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +6% | Apr 2024 | Open |
| Zinc, total recoverable | DMR, Limited - Numeric Violation | 0.11 mg/L | 0.10 | +16% | Apr 2024 | Open |
| Solids, total suspended | DMR, Limited - Overdue | 1,475.00 mg/L | 100.00 | +1,375% | Jun 2023 | Resolved |
| Copper, total [as Cu] | DMR, Limited - Overdue | 0.02 mg/L | 0.01 | +265% | Jun 2023 | Resolved |
| Solids, total suspended | DMR, Limited - Overdue | 1,273.33 mg/L | 100.00 | +1,173% | Jun 2023 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 39.73 mg/L | 1.00 | +3,873% | Jun 2023 | Resolved |
| Solids, total suspended | DMR, Limited - Overdue | 138.50 mg/L | 100.00 | +39% | Jun 2023 | Resolved |
| Solids, total suspended | DMR, Limited - Overdue | 446.00 mg/L | 100.00 | +346% | Jun 2023 | Resolved |
| Copper, total [as Cu] | DMR, Limited - Overdue | 0.01 mg/L | 0.01 | +60% | Jun 2023 | Resolved |
| Copper, total [as Cu] | DMR, Limited - Overdue | 0.16 mg/L | 0.01 | +3,100% | Jun 2023 | Resolved |
| Solids, total suspended | DMR, Limited - Overdue | 1,054.50 mg/L | 100.00 | +955% | Jun 2023 | Resolved |
| Copper, total [as Cu] | DMR, Limited - Overdue | 0.26 mg/L | 0.01 | +5,160% | Jun 2023 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 4.82 mg/L | 1.00 | +382% | Jun 2023 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 58.05 mg/L | 1.00 | +5,705% | Jun 2023 | Resolved |
| Copper, total [as Cu] | DMR, Limited - Overdue | 0.17 mg/L | 0.01 | +3,210% | Jun 2023 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 10.56 mg/L | 1.00 | +956% | Jun 2023 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 91.60 mg/L | 1.00 | +9,060% | Jun 2023 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 87.27 mg/L | 1.00 | +8,627% | Mar 2023 | Resolved |
| Solids, total suspended | DMR, Limited - Overdue | 328.00 mg/L | 100.00 | +228% | Dec 2022 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 6.40 mg/L | 1.00 | +540% | Dec 2022 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 18.30 mg/L | 1.00 | +1,730% | Jun 2022 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 2.20 mg/L | 1.00 | +120% | Jun 2022 | Resolved |
| Solids, total suspended | DMR, Limited - Overdue | 525.00 mg/L | 100.00 | +425% | Jun 2022 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 1.27 mg/L | 1.00 | +27% | Mar 2022 | Resolved |
| Iron, total [as Fe] | DMR, Limited - Overdue | 69.60 mg/L | 1.00 | +6,860% | Mar 2019 | Resolved |
| Solids, total suspended | DMR, Limited - Overdue | 1,680.00 mg/L | 100.00 | +1,580% | Mar 2019 | Resolved |
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