EmissionsLookup
Non-Compliance TRI Reporter Clean Air Act Clean Water Act RCRA

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

#9 of 245 TRI reporters in AZ
#52 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
5
Water (CWA)
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
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) -40% overall
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.

Judicial
· Case 09-1980-0007
NOC/NOTICE OF OPPORTUNITY TO CORRECT
RCRA (Hazardous Waste) · Case RCRA-AZD000626606-6 · Oct 26, 2018
INSPECTION REPORT WRITTEN
RCRA (Hazardous Waste) · Case RCRA-AZD000626606-5 · Oct 18, 2018
RECEIVED FACILITY DOCUMENTATION
RCRA (Hazardous Waste) · Case RCRA-AZD000626606-4 · Mar 31, 2017
RECEIVED FACILITY DOCUMENTATION
RCRA (Hazardous Waste) · Case RCRA-AZD000626606-3 · Mar 23, 2017
RECEIVED FACILITY DOCUMENTATION
RCRA (Hazardous Waste) · Case RCRA-AZD000626606-2 · Mar 7, 2017
INSPECTION REPORT WRITTEN
RCRA (Hazardous Waste) · Case RCRA-AZD000626606-1 · Mar 3, 2017
Judicial
· Case 09-2006-0123 · Jul 9, 2009
Administrative - Formal
· Case 09-2008-2511 · May 27, 2008
Administrative - Formal
· Case 09-2005-0248 · Dec 8, 2005
$62,411
Administrative - Formal
· Case 09-2004-0423 · Dec 16, 2004
$80,000
Judicial
· Case 09-1991-0034 · May 22, 1998
$3,000,000
CWA 309A AO For Compliance
Clean Water Act · Case 09-1991-N022 · Jul 1, 1991
CWA 309A AO For Compliance
Clean Water Act · Case 09-1985-N010 · Jul 19, 1985
Judicial
· Case 09-1976-0005 · Jun 22, 1981
Judicial
· Case 09-1976-0002 · Feb 14, 1977
$6,000

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