Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
FREEPORT-MCMORAN SIERRITA, INC.
Quick Summary
- •Released 1,673,550 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
-
6200 W. DUVAL MINE ROAD
GREEN VALLEY, AZ 85622
View on map ↗ - County
- PIMA County
- Industry
- Mining, Quarrying, and Oil and Gas Extraction
- NAICS (North American Industry Classification)
- 212234
- Inspections
- 3 · last Apr 3, 2025
- Total Penalties
- $0 · last Jan 21, 2009
- Registry ID
- 110000471837
How This Compares
#8
of 245 TRI reporters in AZ
#49
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
1
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)
-42% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 2,877,448 | — |
| 2016 | 1,040,156 | -64% |
| 2017 | 1,673,550 | +61% |
| 2018 | 2,969,104 | +77% |
| 2019 | 2,009,313 | -32% |
| 2020 | 1,455,867 | -28% |
| 2021 | 1,848,383 | +27% |
| 2022 | 2,151,052 | +16% |
| 2023 | 2,477,965 | +15% |
| 2024 | 1,681,898 | -32% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Lead compounds | 1,226,128 | 127 | — | 1,226,001 | 13,216 | |
| Manganese | 130,250 | 250 | — | 130,000 | — | |
| Arsenic | 86,000 | — | — | 86,000 | — | ♦ Carcinogen |
| Cobalt | 86,000 | — | — | 86,000 | — | ♦ Carcinogen |
| Nickel | 60,005 | 5 | — | 60,000 | — | ♦ Carcinogen |
| Chromium | 38,005 | 5 | — | 38,000 | — | |
| Molybdenum trioxide | 22,800 | 22,800 | — | — | — | ♦ Carcinogen |
| Copper compounds | 12,650 | 9,150 | — | 3,500 | 250 | |
| n-Butyl alcohol | 8,050 | 250 | — | 7,800 | 1,200 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4,900 | 4,900 | — | — | — | |
| Mercury compounds | 3,260 | 0 | — | 3,260 | — | |
| Ammonia | 3,100 | 3,100 | — | — | 5 | |
| Chlorine | 750 | 750 | — | — | — |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Lead compounds | 1,673,175 | 175 | — | 1,673,000 | 30 | |
| Manganese | 340,250 | 250 | — | 340,000 | — | |
| Nickel | 140,005 | 5 | — | 140,000 | — | ♦ Carcinogen |
| Cobalt | 88,000 | — | — | 88,000 | — | ♦ Carcinogen |
| Arsenic | 88,000 | — | — | 88,000 | — | ♦ Carcinogen |
| Chromium | 76,005 | 5 | — | 76,000 | — | |
| n-Butyl alcohol | 22,300 | 1,300 | — | 21,000 | 5 | |
| Molybdenum trioxide | 21,800 | 21,800 | — | — | — | ♦ Carcinogen |
| Copper compounds | 16,250 | 9,650 | — | 6,600 | — | |
| Ammonia | 4,500 | 4,500 | — | — | 5 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4,100 | 4,100 | — | — | — | |
| Mercury compounds | 2,830 | 0 | — | 2,830 | — | |
| Chlorine | 750 | 750 | — | — | — |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Sodium nitrite | — | — | — | — | — | |
| Lead compounds | 1,434,071 | 71 | — | 1,434,000 | 28,630 | |
| Manganese | 320,250 | 250 | — | 320,000 | — | |
| Chromium | 100,005 | 5 | — | 100,000 | — | |
| Arsenic | 87,000 | — | — | 87,000 | — | ♦ Carcinogen |
| Cobalt | 87,000 | — | — | 87,000 | — | ♦ Carcinogen |
| Nickel | 69,005 | 5 | — | 69,000 | — | ♦ Carcinogen |
| n-Butyl alcohol | 20,100 | 1,100 | — | 19,000 | 3,400 | |
| Molybdenum trioxide | 13,000 | 13,000 | — | — | — | ♦ Carcinogen |
| Copper compounds | 9,200 | 500 | — | 8,700 | 255 | |
| Ammonia | 3,900 | 3,900 | — | — | 5 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 3,800 | 3,800 | — | — | — | |
| Mercury compounds | 2,970 | 0 | — | 2,970 | — | |
| Chlorine | 750 | 750 | — | — | — |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Butyraldehyde | — | — | — | — | — | |
| Lead compounds | 1,072,069 | 69 | — | 1,072,000 | 11 | |
| Manganese | 270,250 | 250 | — | 270,000 | — | |
| Chromium | 240,005 | 5 | — | 240,000 | — | |
| Cobalt | 79,000 | — | — | 79,000 | — | ♦ Carcinogen |
| Arsenic | 78,000 | — | — | 78,000 | — | ♦ Carcinogen |
| Nickel | 45,005 | 5 | — | 45,000 | — | ♦ Carcinogen |
| n-Butyl alcohol | 19,000 | — | — | 19,000 | — | |
| Copper compounds | 17,800 | 500 | — | 17,300 | — | |
| Molybdenum trioxide | 13,000 | 13,000 | — | — | — | ♦ Carcinogen |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4,800 | 4,800 | — | — | — | |
| Ammonia | 4,200 | 4,200 | — | — | 5 | |
| Mercury compounds | 2,404 | 0 | — | 2,404 | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 2,100 | — | — | 2,100 | — | |
| Chlorine | 750 | 750 | — | — | — |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| n-Butyl alcohol | — | — | — | — | — | |
| Lead compounds | 601,071 | 71 | — | 601,000 | 1,506 | |
| Chromium | 320,005 | 5 | — | 320,000 | — | |
| Manganese | 280,250 | 250 | — | 280,000 | — | |
| Cobalt | 91,000 | — | — | 91,000 | — | ♦ Carcinogen |
| Arsenic | 90,000 | — | — | 90,000 | — | ♦ Carcinogen |
| Nickel | 52,005 | 5 | — | 52,000 | — | ♦ Carcinogen |
| Molybdenum trioxide | 6,700 | 6,700 | — | — | — | ♦ Carcinogen |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4,400 | 4,400 | — | — | — | |
| Ammonia | 4,000 | 4,000 | — | — | 5 | |
| Copper compounds | 3,355 | 255 | — | 3,100 | 250 | |
| Mercury compounds | 2,331 | 0 | — | 2,331 | — | |
| Chlorine | 750 | 750 | — | — | — |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| n-Butyl alcohol | — | — | — | — | — | |
| Sodium nitrite | — | — | — | — | — | |
| Lead compounds | 679,087 | 87 | — | 679,000 | 206 | |
| Manganese compounds | 570,250 | 250 | — | 570,000 | 250 | |
| Chromium | 220,005 | 5 | — | 220,000 | — | |
| Copper compounds | 210,750 | 500 | — | 210,250 | 250 | |
| Zinc compounds | 96,005 | 5 | — | 96,000 | 5 | |
| Cobalt | 78,000 | — | — | 78,000 | — | ♦ Carcinogen |
| Arsenic | 77,000 | — | — | 77,000 | — | ♦ Carcinogen |
| Nickel | 53,005 | 5 | — | 53,000 | — | ♦ Carcinogen |
| Molybdenum trioxide | 12,000 | 12,000 | — | — | — | ♦ Carcinogen |
| Ammonia | 5,100 | 5,100 | — | — | 5 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4,800 | 4,800 | — | — | — | |
| Mercury compounds | 2,560 | 0 | — | 2,560 | 15 | |
| Chlorine | 750 | 750 | — | — | — |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| n-Butyl alcohol | — | — | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Manganese compounds | 1,200,250 | 250 | — | 1,200,000 | 250 | |
| Lead compounds | 652,084 | 84 | — | 652,000 | 2,112 | |
| Copper compounds | 478,800 | 500 | — | 478,300 | 250 | |
| Chromium | 300,005 | 5 | — | 300,000 | — | |
| Zinc compounds | 190,005 | 5 | — | 190,000 | — | |
| Nickel | 110,005 | 5 | — | 110,000 | — | ♦ Carcinogen |
| Cobalt compounds | 15,005 | 5 | — | 15,000 | — | ♦ Carcinogen |
| Molybdenum trioxide | 11,000 | 11,000 | — | — | — | ♦ Carcinogen |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4,900 | 4,900 | — | — | — | |
| Ammonia | 3,400 | 3,400 | — | — | 255 | |
| Mercury compounds | 2,900 | 0 | — | 2,900 | 1 | |
| Chlorine | 750 | 750 | — | — | — |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| n-Butyl alcohol | — | — | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Manganese compounds | 570,250 | 250 | — | 570,000 | — | |
| Lead compounds | 506,045 | 45 | — | 506,000 | 392 | |
| Chromium | 250,005 | 5 | — | 250,000 | — | |
| Copper compounds | 153,755 | 255 | — | 153,500 | — | |
| Nickel | 120,005 | 5 | — | 120,000 | — | ♦ Carcinogen |
| Zinc compounds | 53,005 | 5 | — | 53,000 | — | |
| Molybdenum trioxide | 7,400 | 7,400 | — | — | 5 | ♦ Carcinogen |
| Ammonia | 6,300 | 6,300 | — | — | 5 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 3,700 | 3,700 | — | — | — | |
| Mercury compounds | 2,330 | 0 | — | 2,330 | — | |
| Chlorine | 755 | 755 | — | — | — |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| n-Butyl alcohol | — | — | — | — | — | |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| Lead compounds | 442,041 | 41 | — | 442,000 | 9,511 | |
| Chromium | 270,005 | 5 | — | 270,000 | — | |
| Manganese compounds | 190,250 | 250 | — | 190,000 | 250 | |
| Nickel | 110,005 | 5 | — | 110,000 | — | ♦ Carcinogen |
| Copper compounds | 22,850 | 250 | — | 22,600 | 250 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 2,500 | 2,500 | — | — | — | |
| Ammonia | 1,500 | 1,500 | — | — | 10 | |
| Chlorine | 755 | 755 | — | — | — | |
| Molybdenum trioxide | 250 | 250 | — | — | — | ♦ Carcinogen |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | — | — | — | — | — | |
| n-Butyl alcohol | — | — | — | — | — | |
| Manganese compounds | 1,200,255 | 255 | — | 1,200,000 | 250 | |
| Lead compounds | 718,083 | 82 | — | 718,001 | 143 | |
| Zinc compounds | 390,005 | 5 | — | 390,000 | 61,600 | |
| Chromium | 240,005 | 5 | — | 240,000 | — | |
| Nickel compounds | 150,010 | 10 | — | 150,000 | 5 | ♦ Carcinogen |
| Copper compounds | 123,900 | 500 | — | 123,400 | 5,700 | |
| Cobalt compounds | 27,005 | 5 | — | 27,000 | 250 | ♦ Carcinogen |
| Molybdenum trioxide | 17,000 | 17,000 | — | — | — | ♦ Carcinogen |
| Ammonia | 4,700 | 4,700 | — | — | 5 | |
| Mercury compounds | 3,230 | 0 | — | 3,230 | 21 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 2,500 | 2,500 | — | — | — | |
| Chlorine | 755 | 755 | — | — | — |
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 |
|---|---|---|---|---|
| n-Butyl alcohol | — | — | — | 1,200 |
| Lead compounds | — | 13,216 | — | — |
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 | — | 12,600 | — | — |
|
CLEAN HARBORS ARAGONITE, LLC
ARAGONITE, UT
|
Lead compounds | — | — | — | — |
|
THERMO FLUIDS INC - PHOENIX
PHOENIX, AZ
|
Lead compounds | 0 | — | — | — |
|
CLEAN HARBORS LAPORTE
LA PORTE, TX
|
Lead compounds | — | 616 | — | — |
|
CLEAN HARBORS GRASSY MOUNTAIN
KNOLLS, UT
|
Lead compounds | — | — | — | — |
|
CLEAN HARBORS GRASSY MOUNTAIN
KNOLLS, UT
|
Mercury compounds | — | — | — | — |
|
CLEAN HARBORS ARAGONITE, LLC
ARAGONITE, UT
|
Mercury compounds | — | — | — | — |
|
CLEAN HARBORS ARIZONA LLC
PHOENIX, AZ
|
Mercury compounds | — | — | — | — |
|
BUICK RESOURCE RECYCLING FACILITY LLC THE
BOSS, MO
|
Copper compounds | 250 | — | — | — |
|
CLEAN HARBORS ARIZONA LLC
PHOENIX, AZ
|
n-Butyl alcohol | — | — | — | 1,200 |
Transfers to Publicly-Owned Treatment Works (POTWs)
Toxic chemicals transferred to municipal wastewater treatment plants during the most recent TRI reporting year. Quantities in pounds.
| Chemical | Transferred (lbs) | POTW |
|---|---|---|
| Ammonia | 5 | PIMA COUNTY - INA ROAD WWTP, TUCSON |
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 |
|---|---|---|---|---|
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Oct 25, 2011 | Nov 15, 2011 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Aug 11, 2009 | Aug 3, 2010 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Contingency Plan and Emergency Procedures | Aug 11, 2009 | Aug 3, 2010 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Oct 15, 1998 | Apr 23, 1999 | 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, dissolved [as Cu] | DMR, Limited - Numeric Violation | 8.80 mg/L | 0.02 | +58,368% | May 2026 | 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.
INSPECTION REPORT SENT NO VIOL NO RESPONSE
RCRA (Hazardous Waste)
· Case RCRA-AZD982478216-7 · Dec 18, 2014
NOC/NOTICE OF OPPORTUNITY TO CORRECT
RCRA (Hazardous Waste)
· Case RCRA-AZD982478216-3 · Jan 10, 2012
INSPECTION REPORT WRITTEN
RCRA (Hazardous Waste)
· Case RCRA-AZD982478216-4 · Nov 30, 2011
RECEIVED FACILITY DOCUMENTATION
RCRA (Hazardous Waste)
· Case RCRA-AZD982478216-2 · Nov 15, 2011
INSPECTION REPORT SENT NO VIOL NO RESPONSE
RCRA (Hazardous Waste)
· Case RCRA-AZD982478216-001 · Jun 29, 2010
Judicial
· Case 09-1998-0114 · Aug 12, 2004
$1,400,000
Judicial
· Case 09-1993-0024 · Apr 9, 1996
$88,000
CWA 309A AO For Compliance
Clean Water Act
· Case 09-1993-N032 · Mar 15, 1993
CWA 309G2B AO For Class II Penalties
Clean Water Act
· Case 09-1988-N037 · Jun 15, 1989
$7,500
CWA 309A AO For Compliance
Clean Water Act
· Case 09-1988-N038 · Nov 24, 1987
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