PERI: Toxic 100 Index

Tesoro

Rank in Toxic 100 Water: 59
Surface Water releases 2014 (lbs): 40,304
POTW (sewerage plant) transfers 2014 (lbs): 420,013
Pounds released post-treatment 2014 (lbs): 91,037
Total Surface Water and POTW Toxic Hazard 2014: 70,157,656
Percentage of national total 2014 surface water and POTW hazard: 0.027%

Chemicals displayed below: (display facilities) (display chemicals at facilities)
(Click on column headers to re-sort table: current sort is by pounds released post-treatment.)
(Links on chemical names lead to Scorecard chemical health effects.)

Chemical	Surface water releases (lbs)	POTW transfers (lbs)	Post-treatment releases (lbs)	Toxic Hazard (quantity x toxicity)	Percent of total company hazard
Nitrate compounds	31,000	0	31,000	19,530	0.03%
Ammonia	7,147	32,255	20,081	0	0.00%
Hydrogen sulfide	638	54,020	12,847	23,123,735	32.96%
Methanol	0	160,000	12,688	12,688	0.02%
Diethanolamine	0	46,874	3,722	2,642,476	3.77%
Zinc and zinc compounds	110	6,584	2,339	7,718	0.01%
Cresol (mixed isomers)	0	20,581	1,570	31,407	0.04%
Phenol	61	18,786	1,536	5,068	0.01%
Xylene (mixed isomers)	41	34,521	1,398	6,988	0.01%
Toluene	17	19,870	1,018	13,240	0.02%
Manganese and manganese compounds	774	0	774	5,495	0.01%
Benzene	13	8,265	501	27,580,399	39.31%
Ethylbenzene	8	4,466	464	509,885	0.73%
Nickel and nickel compounds	390	74	436	39,646	0.06%
1,2,4-Trimethylbenzene	7	6,592	395	790,538	1.13%
Naphthalene	5	1,378	60	3,013	0.00%
Lead and lead compounds	28	53	47	854,029	1.22%
Cyclohexane	3	370	45	26	0.00%
Hydrogen cyanide	33	0	33	56,100	0.08%
Tetrachloroethylene (Perchloroethylene)	0	207	23	48,469	0.07%
Phenanthrene	4	210	16	0	0.00%
Anthracene	2	200	14	45	0.00%
n-Hexane	9	4,525	12	199	0.00%
Polycyclic aromatic compounds	7	0	7	9,490,957	13.53%
Cumene	0	156	3	30	0.00%
Carbon disulfide	3	0	3	30	0.00%
Styrene	0	26	1	7	0.00%
Mercury and mercury compounds	1	0	1	13,000	0.02%
Chromium and chromium compounds	1	0	1	500,000	0.71%
Vanadium and vanadium compounds	1	0	1	140	0.00%
Benzo(g,h,i)perylene	0	0	0	4,000	0.01%
Dioxin and dioxin-like compounds	0	0	0	4,398,800	6.27%
Ethylene	0	0	0	0	0.00%
Isoprene	0	0	0	0	0.00%
Biphenyl	0	0	0	0	0.00%
1,3-Butadiene	0	0	0	0	0.00%
Propylene (Propene)	0	0	0	0	0.00%
Carbonyl sulfide	0	0	0	0	0.00%
Molybdenum trioxide	0	0	0	0	0.00%
Hydrochloric acid	0	0	0	0	0.00%
Hydrogen fluoride	0	0	0	0	0.00%
Sulfuric acid	0	0	0	0	0.00%
Glycol ethers	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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