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Rio Tinto

Rank in Toxic 100 Water Polluters: 24
Surface Water releases 2022 (lbs): 9,971
POTW (sewerage plant) transfers 2022 (lbs): 27
Total Surface Water and POTW Toxic Hazard 2022: 588,185,597
Percentage of national total 2022 surface water and POTW hazard: 0.2%
EJ: Near Poor Share: 14%
EJ: Minority Share: 20%

You can also view this company's penalties in Violation Tracker.
You can also look at this company's state, local, and Federal subsidies in Subsidy Tracker.
This company is rank 21 on the Toxic 100 Air Polluters list.
This company has information in PERI's Greenhouse 100 Polluters database.

Chemicals at facilities displayed below: (display facilities) (display chemicals)
(Click on column headers to re-sort table: current sort is by Toxic Hazard
(quantity x toxicity) descending.)
(Links on facility names lead to full TRI reports. Links on chemical names lead to New Jersey Right To Know Hazardous Substance Fact Sheets that have information on health effects.)
Facility NameCityStateChemicalSurface water releases (lbs)POTW transfers (lbs)Toxic Hazard
(quantity x toxicity) down arrow
Percent of total company hazardSplit *
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTArsenic compounds1960294,000,00049.98%
KENNECOTT UTAH COPPER MINE CONCENTRATORS & POWER PLANTBINGHAM CANYONUTArsenic compounds700105,000,00017.85%
KENNECOTT UTAH COPPER MINE CONCENTRATORS & POWER PLANTBINGHAM CANYONUTChromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) 500085,000,00014.45%
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTChromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) 500085,000,00014.45%
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTThallium compounds50007,000,0001.19%
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTVanadium compounds50007,000,0001.19%
KENNECOTT UTAH COPPER MINE CONCENTRATORS & POWER PLANTBINGHAM CANYONUTAntimony compounds50001,250,0000.21%
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTAntimony compounds50001,250,0000.21%
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTLead compounds450810,0000.14%
KENNECOTT UTAH COPPER MINE CONCENTRATORS & POWER PLANTBINGHAM CANYONUTCopper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.)3540531,0000.09%
KENNECOTT UTAH COPPER MINE CONCENTRATORS & POWER PLANTBINGHAM CANYONUTCyanide compounds1,8450369,0000.06%
KENNECOTT UTAH COPPER MINE CONCENTRATORS & POWER PLANTBINGHAM CANYONUTLead compounds150270,0000.05%
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTCopper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.)1180177,0000.03%
MATALCO INC.BLUFFTONINChromium016160,0000.03%50%
OHIO VALLEY ALUMINUM CO INCSHELBYVILLEKYChromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) 150150,2000.03%50%
OHIO VALLEY ALUMINUM CO INCSHELBYVILLEKYLead 70125,7840.02%50%
KENNECOTT UTAH COPPER MINE CONCENTRATORS & POWER PLANTBINGHAM CANYONUTSilver compounds5000100,0000.02%
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTSilver compounds5000100,0000.02%
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTSelenium compounds160032,0000.01%
OHIO VALLEY ALUMINUM CO INCSHELBYVILLEKYCopper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.)20029,5500.01%50%
MATALCO INC.BLUFFTONINCopper01624,0000.00%50%
KENNECOTT UTAH COPPER MINE CONCENTRATORS & POWER PLANTBINGHAM CANYONUTNickel compounds232021,1120.00%
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTNickel compounds7707,0070.00%
KENNECOTT UTAH COPPER MINE CONCENTRATORS & POWER PLANTBINGHAM CANYONUTSelenium compounds2805,6000.00%
KENNECOTT UTAH COPPER MINE CONCENTRATORS & POWER PLANTBINGHAM CANYONUTCresol (mixed isomers)25005,0000.00%
KENNECOTT UTAH COPPER MINE CONCENTRATORS & POWER PLANTBINGHAM CANYONUTManganese compounds50003,5500.00%
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTManganese compounds50003,5500.00%
MATALCO INC.BLUFFTONINLead 003,2400.00%50%
MATALCOWISCONSIN RAPIDSWILead 002,3400.00%50%
MATALCO (US) INCCANTONOHLead 001,6200.00%50%
MATALCO (US) INCCANTONOHCopper011,5000.00%50%
MATALCOWISCONSIN RAPIDSWICopper011,5000.00%50%
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTNitrate compounds (water dissociable; reportable only when in aqueous solution)1,00006300.00%
US BORAX INC.WILMINGTONCAZinc compounds5221770.00%
MATALCO INC.BLUFFTONINManganese0161140.00%50%
OHIO VALLEY ALUMINUM CO INCSHELBYVILLEKYManganese compounds100730.00%50%
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTZinc compounds30110.00%
KENNECOTT UTAH COPPER SMELTER & REFINERYMAGNAUTAmmonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing)500000.00%

For explanations of most columns above, including the EJ Shares, see the technical notes.

Toxic hazard: Pounds of direct releases to surface water and pounds transferred to Publicly Operated Treatment Works (POTW's) reported in the US Environmental Protection Agency's Toxics Release Inventory for the year 2022, weighted by toxicity of chemicals. Weights are from the EPA's Risk-Screening Environmental Indicators project.

Quantity of toxic surface water releases and POTW transfers: Pounds of toxic chemicals released directly to surface water at each TRI facility or transferred off-site to a POTW, without weighting for toxicity or population.

* Split: if 50% appears in this column, then the facility's releases have been split among two 50/50% ownership parent companies for their parent company data, although the full pounds and hazard are displayed here.

Combined Toxic / Greenhouse 100 Lists
Toxic 100 Water Polluters Top Company List
Toxic 100 Air Polluters Top Company List
Greenhouse 100 Polluters Top Company List
Greenhouse 100 Suppliers Top Company List
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