Facility detail

TESORO REFINING & MARKETING CO LLC

W MARCH POINT RD, ANACORTES, WA, 98221

Parent company: MARATHON PETROLEUM CORP

Carcinogen PBT — EPA classifications across all reporting years

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Year-over-year total releases

Reported on-site TRI releases in pounds, grouped by reporting year.

Top chemical totals

The 10 chemicals with the highest cumulative on-site releases across all available years.

Full release table

Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.

Year	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Xylene (mixed isomers)	Toluene	n-Hexane	Propylene	Total
2024	53,187	7,389	15,423	5,670	311	125,476
2023	46,085	7,367	12,213	5,304	356	109,499
2022	64,123	7,528	10,106	11,326	337	133,771
2021	60,771	8,236	9,046	7,558	319	128,017
2020	43,872	8,722	12,505	7,393	316	117,840
2019	56,067	12,210	16,131	9,437	326	145,185
2018	55,460	9,930	13,160	9,823	346	137,980
2017	60,151	10,395	13,431	7,007	342	143,279
2016	89,120	8,423	13,327	6,863	311	182,324
2015	73,551	10,892	13,459	6,938	1,326	198,980
2014	91,636	8,645	14,349	12,474	1,450	207,259
2013	91,207	8,164	13,429	12,467	1,938	214,387
2012	120,091	9,075	14,773	11,354	1,924	234,491
2011	158,095	7,672	11,208	11,430	2,339	240,380
2010	52,734	20,406	21,495	15,885	6,551	159,190
2009	44,546	27,714	28,071	28,568	11,797	230,567
2008	53,490	26,413	28,755	48,782	13,365	225,458
2007	173,930	29,552	29,512	59,049	13,047	362,286
2006	227,333	28,817	31,592	50,845	22,480	422,451
2005	348,706	34,699	31,925	60,186	27,427	578,336
2004	438,620	41,491	37,112	59,203	20,443	666,403
2003	510,875	40,645	36,879	25,563	19,758	709,182
2002	420,844	44,267	45,457	30,903	23,079	696,040
2001	574,650	44,963	41,501	23,182	72,680	1,214,962
2000	613,000	44,330	44,530	26,090	31,680	972,819
1999	440,000	31,800	34,020	14,750	39,680	627,235
1998	153,000	33,810	29,552	31,030	17,000	322,343
1997	—	70,260	62,100	46,000	17,000	288,174
1996	—	70,260	62,100	46,000	17,000	288,174
1995	—	55,001	48,500	42,800	13,700	239,643
1994	—	54,020	47,000	—	14,400	268,174
1993	—	51,260	47,555	—	18,000	213,123
1992	—	40,760	28,240	—	15,100	135,067
1991	230	43,360	30,100	—	15,400	140,374
1990	250	51,740	34,960	—	15,850	166,040
1989	250	47,660	44,870	—	60,950	217,720
1988	—	—	41,870	—	—	105,350
1987	—	60,100	—	—	14,000	87,780