ASARCO LLC RAY MINE OPERATIONS
Quick Summary
- •Released 1,383,736 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
-
N MINERAL CREEK RD
KEARNY, AZ 85237
View on map ↗ - County
- PINAL County
- Industry
- Mining, Quarrying, and Oil and Gas Extraction
- NAICS (North American Industry Classification)
- 212230
- Inspections
- 4 · last Mar 24, 2025
- Total Penalties
- $0 · last Jun 20, 2007
- Registry ID
- 110000471338
How This Compares
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.
Qtrs Non-Compliant
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.
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 1,736,731 | — |
| 2016 | 2,331,711 | +34% |
| 2017 | 1,383,736 | -41% |
| 2018 | 2,060,307 | +49% |
| 2019 | 0 | -100% |
| 2020 | 303,809 | — |
| 2021 | 628,009 | +107% |
| 2022 | 1,057,864 | +68% |
| 2023 | 1,480,256 | +40% |
| 2024 | 1,048,671 | -29% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Cobalt compounds | — | — | — | — | — | ♦ Carcinogen |
| Ammonia | — | — | — | — | — | |
| Lead compounds | 951,439 | 174 | — | 951,265 | 197,476 | |
| Chromium | 42,233 | 3 | — | 42,230 | — | |
| Manganese | 31,517 | 17 | — | 31,500 | — | |
| Nickel | 13,485 | 3 | — | 13,483 | — | ♦ Carcinogen |
| Copper compounds | 7,217 | 6,838 | — | 379 | 21,869 | |
| 1,2,4-Trimethylbenzene | 1,486 | 1,486 | — | — | — | |
| n-Hexane | 990 | 990 | — | — | — | |
| Mercury compounds | 156 | 22 | — | 135 | — | |
| Naphthalene | 149 | 149 | — | — | — | ♦ Carcinogen |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Cobalt compounds | — | — | — | — | — | ♦ Carcinogen |
| Ammonia | — | — | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Lead compounds | 1,350,293 | 172 | — | 1,350,122 | 218,521 | |
| Chromium | 52,710 | 4 | — | 52,706 | — | |
| Manganese | 43,786 | 15 | — | 43,771 | — | |
| Nickel | 28,881 | 3 | — | 28,878 | — | ♦ Carcinogen |
| Copper compounds | 4,316 | 3,931 | — | 385 | 26,078 | |
| Mercury compounds | 270 | 20 | — | 250 | — |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Cobalt compounds | — | — | — | — | — | ♦ Carcinogen |
| Ammonia | — | — | — | — | — | |
| Lead compounds | 972,139 | 143 | — | 971,996 | — | |
| Manganese | 36,935 | 21 | — | 36,914 | — | |
| Chromium | 32,098 | 6 | — | 32,092 | — | |
| Nickel | 10,783 | 5 | — | 10,778 | — | ♦ Carcinogen |
| Copper compounds | 5,702 | 5,230 | — | 472 | — | |
| Mercury compounds | 208 | 20 | — | 187 | — |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Cobalt compounds | — | — | — | — | — | ♦ Carcinogen |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Ammonia | — | — | — | — | — | |
| Lead compounds | 487,670 | 68 | — | 487,602 | 21,321 | |
| Chromium | 89,511 | — | — | 89,511 | — | |
| Nickel | 26,595 | 2 | — | 26,593 | — | ♦ Carcinogen |
| Manganese | 16,567 | 16 | — | 16,551 | — | |
| Copper compounds | 7,475 | 2,996 | — | 4,479 | — | |
| Mercury compounds | 191 | 16 | — | 176 | — |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Cobalt compounds | — | — | — | — | — | ♦ Carcinogen |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Ammonia | — | — | — | — | — | |
| Lead compounds | 201,916 | 15 | — | 201,901 | 148,525 | |
| Chromium | 40,013 | — | — | 40,013 | — | |
| Nickel | 31,664 | 2 | — | 31,662 | — | ♦ Carcinogen |
| Manganese | 22,627 | 18 | — | 22,609 | — | |
| Copper compounds | 7,504 | 3,384 | — | 4,120 | — | |
| Mercury compounds | 85 | 13 | — | 72 | — |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Cobalt compounds | — | — | — | — | — | ♦ Carcinogen |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Cobalt compounds | — | — | — | — | — | ♦ Carcinogen |
| Lead compounds | 1,614,234 | 213 | — | 1,614,021 | 43,816 | |
| Copper compounds | 165,784 | 1,072 | — | 164,712 | — | |
| Chromium | 132,596 | — | — | 132,596 | — | |
| Zinc compounds | 121,800 | 0 | — | 121,800 | — | |
| Nickel | 22,890 | — | — | 22,890 | — | ♦ Carcinogen |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 2,316 | 2,316 | — | — | — | |
| Ammonia | 613 | 613 | — | — | — | |
| Mercury compounds | 73 | 0 | — | 73 | — |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Cobalt compounds | — | — | — | — | — | ♦ Carcinogen |
| Ammonia | — | — | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Lead compounds | 1,190,468 | 232 | — | 1,190,237 | 138,395 | |
| Chromium | 156,495 | — | — | 156,495 | — | |
| Nickel | 26,006 | — | — | 26,006 | — | ♦ Carcinogen |
| Copper compounds | 8,346 | 3,201 | — | 5,145 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 2,316 | 2,316 | — | — | — | |
| Mercury compounds | 104 | 0 | — | 104 | — |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Cobalt compounds | — | — | — | — | — | ♦ Carcinogen |
| Lead compounds | 1,583,028 | 99 | — | 1,582,929 | 77,951 | |
| Manganese compounds | 465,843 | 6 | — | 465,837 | — | |
| Nickel compounds | 207,915 | 0 | — | 207,915 | — | ♦ Carcinogen |
| Chromium | 60,453 | 0 | — | 60,453 | — | |
| Copper compounds | 10,383 | 4,822 | — | 5,562 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 3,474 | 3,474 | — | — | — | |
| Ammonia | 425 | 425 | — | — | — | |
| Mercury compounds | 188 | 0 | — | 188 | — |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Cobalt compounds | — | — | — | — | — | ♦ Carcinogen |
| Lead compounds | 1,235,743 | 76 | — | 1,235,666 | — | |
| Manganese compounds | 340,546 | 10 | — | 340,536 | — | |
| Nickel compounds | 81,012 | 0 | — | 81,012 | — | ♦ Carcinogen |
| Chromium | 62,664 | 2 | — | 62,662 | — | |
| Copper compounds | 12,315 | 4,854 | — | 7,461 | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 3,474 | 3,474 | — | — | — | |
| Ammonia | 849 | 849 | — | — | — | |
| Mercury compounds | 129 | 0 | — | 129 | — |
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 |
|---|---|---|---|---|
| Lead compounds | — | 197,476 | — | — |
| Copper compounds | — | 21,869 | — | — |
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 |
|---|---|---|---|---|---|
|
BUICK RESOURCE RECYCLING FACILITY LLC THE
BOSS, MO
|
Lead compounds | — | 197,476 | — | — |
|
BUICK RESOURCE RECYCLING FACILITY LLC THE
BOSS, MO
|
Copper compounds | — | 21,869 | — | — |
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 - Failure to Submit Timely Permit Renewal Application | Jan 8, 2026 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Sep 9, 2025 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Jan 13, 2023 | — | Open |
| cwa | Effluent Violations - Numeric effluent violation | Dec 9, 2022 | — | Open |
| cwa | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | Jul 31, 2019 | — | Open |
| cwa | Management Practice Violations - Improper Operation and Maintenance | Jul 31, 2019 | — | Open |
| cwa | Reporting Violations - Failure to Notify | Jul 31, 2019 | — | Open |
| cwa | Management Practice Violations - Best Management Practice Deficiencies | Jul 31, 2019 | — | Open |
| rcra | Violation of a Federal or State Statute | Oct 9, 2018 | Mar 11, 2019 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Preparedness and Prevention | Oct 9, 2018 | Mar 11, 2019 | Resolved |
| cwa | Schedule Event unachieved and not reported | Apr 23, 2010 | May 23, 2010 | 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 | 0.16 mg/L | 0.03 | +452% | Mar 2025 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.12 mg/L | 0.03 | +314% | Dec 2023 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.05 mg/L | 0.02 | +194% | Nov 2019 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.02 | +19% | Jul 2019 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.02 | +44% | Apr 2019 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +25% | Apr 2019 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.02 | +13% | Mar 2019 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.02 | +19% | Feb 2019 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.04 mg/L | 0.02 | +131% | Dec 2018 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.04 mg/L | 0.02 | +131% | Mar 2018 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +10% | Mar 2018 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.07 mg/L | 0.02 | +344% | Feb 2018 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +190% | Feb 2018 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.02 | +50% | Jan 2018 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +215% | Jan 2018 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.06 mg/L | 0.02 | +263% | Dec 2017 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +140% | Dec 2017 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +345% | Nov 2017 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.02 | +113% | Nov 2017 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.02 | +81% | Oct 2017 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +310% | Sep 2017 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.02 | +81% | Sep 2017 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.02 | +69% | Aug 2017 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +20% | Jul 2017 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.03 mg/L | 0.02 | +113% | Jul 2017 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.04 mg/L | 0.02 | +125% | Jun 2017 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.04 mg/L | 0.02 | +119% | May 2017 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.02 | +50% | Apr 2017 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.02 | +31% | Feb 2017 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.06 mg/L | 0.02 | +256% | Jan 2017 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +5% | Dec 2016 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.09 mg/L | 0.02 | +450% | Dec 2016 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.08 mg/L | 0.02 | +369% | Nov 2016 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +500% | Nov 2016 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 1.80 mg/L | 0.02 | +11,150% | Oct 2016 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +65% | Oct 2016 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.06 mg/L | 0.02 | +281% | Sep 2016 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.10 mg/L | 0.02 | +525% | Sep 2016 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +140% | Sep 2016 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +10% | Sep 2016 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.44 mg/L | 0.02 | +2,650% | Aug 2016 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.00 | +800% | Aug 2016 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.06 mg/L | 0.02 | +275% | Jun 2016 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +55% | Jun 2016 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.07 mg/L | 0.02 | +319% | Mar 2016 | Resolved |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.01 mg/L | 0.00 | +330% | Dec 2015 | Open |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.16 mg/L | 0.02 | +900% | Dec 2015 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.06 mg/L | 0.02 | +275% | Sep 2015 | Resolved |
| Copper, total recoverable | DMR, Limited - Numeric Violation | 0.04 mg/L | 0.02 | +156% | Jun 2015 | Open |
| Selenium, total recoverable | DMR, Limited - Numeric Violation | 0.00 mg/L | 0.00 | +50% | Jun 2015 | 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.