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Alcoa

Rank in Toxic 100 Water: 24
Surface Water releases 2014 (lbs): 73,717
POTW (sewerage plant) transfers 2014 (lbs): 344,061
Pounds released post-treatment 2014 (lbs): 74,267
Total Surface Water and POTW Toxic Hazard 2014: 874,244,113
Percentage of national total 2014 surface water and POTW hazard: 0.336%

Chemicals displayed below: (
display facilities) (display chemicals at facilities)
(Click on column headers to re-sort table: current sort is by water RSEI hazard.)
(Links on chemical names lead to Scorecard chemical health effects.)
Arsenic and arsenic compounds 343 0 343 514,500,000 58.85%
Chromium and chromium compounds 446 91 467 233,659,591 26.73%
Polycyclic aromatic compounds 93 0 93 120,341,002 13.77%
Lead and lead compounds 144 22 152 2,735,170 0.31%
Copper and copper compounds 1,525 204 1,581 2,372,016 0.27%
Manganese and manganese compounds 36,833 96 36,892 261,931 0.03%
Nickel and nickel compounds 1,235 490 1,538 139,917 0.02%
Glycol ethers 409 0 409 73,620 0.01%
Benzo(g,h,i)perylene 3 0 3 60,000 0.01%
Cyanide compounds 150 23 173 34,513 0.00%
Beryllium and beryllium compounds 38 0 38 19,000 0.00%
Nitrate compounds 26,987 342,909 26,987 17,002 0.00%
Barium and barium compounds 2,627 0 2,627 13,135 0.00%
Zinc and zinc compounds 2,069 60 2,089 6,895 0.00%
n-Butyl alcohol 525 0 525 5,250 0.00%
Mercury and mercury compounds 0 0 0 4,000 0.00%
Hydrogen fluoride 0 29 28 712 0.00%
4,4'-Isopropylidenediphenol 0 114 16 327 0.00%
Ethylene glycol 64 0 64 32 0.00%
Naphthalene 0 0 0 0 0.00%
1,2,4-Trimethylbenzene 0 0 0 0 0.00%
Ethylbenzene 0 0 0 0 0.00%
Methyl isobutyl ketone 0 0 0 0 0.00%
Toluene 0 0 0 0 0.00%
Dimethyl phthalate 0 0 0 0 0.00%
Carbonyl sulfide 0 0 0 0 0.00%
Xylene (mixed isomers) 0 0 0 0 0.00%
Aluminum (fume or dust) 0 0 0 0 0.00%
Cobalt and cobalt compounds 225 24 241 0 0.00%
Vanadium and vanadium compounds 0 0 0 0 0.00%
Hydrochloric acid 0 0 0 0 0.00%
Ammonia 0 0 0 0 0.00%
Sulfuric acid 0 0 0 0 0.00%
Nitric acid 0 0 0 0 0.00%
Chlorine 0 0 0 0 0.00%
Dinitrotoluene (mixed isomers) 0 0 0 0 0.00%
Dioxin and dioxin-like compounds 0 0 0 0 0.00%

Toxic hazard: Pounds of direct releases to surface water and estimated releases from transfers to Publicly Operated Treatment Works (POTW's) reported in the US Environmental Protection Agency's Toxics Release Inventory for the year 2014, weighted by toxicity of chemicals. Weights are from the EPA's Risk-Screening Environmental Indicators project. For details, see technical notes.

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.

Quantity of toxic post-treatment releases: Pounds of toxic chemicals released directly to surface water plus released after treatment at POTW's.

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