Facility detail

US OIL & REFINING CO

3001 MARSHALL AVE, TACOMA, WA, 98421

Parent company: PAR PACIFIC HOLDINGS INC

Carcinogen PBT — EPA classifications across all reporting years

Year-over-year total releases

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

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

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

Year	Ammonia	Toluene	Xylene (mixed isomers)	n-Hexane	Benzene	Total
2024	45,342	9,805	8,763	15,474	2,395	89,489
2023	44,872	10,143	8,756	11,235	2,442	85,290
2022	46,357	11,667	9,271	11,158	2,465	88,584
2021	46,492	9,729	8,452	11,355	2,506	86,122
2020	76,592	9,427	8,639	11,894	1,930	116,237
2019	102,310	8,932	10,610	16,067	1,889	149,773
2018	92,622	9,761	8,417	7,161	1,055	126,180
2017	96,699	14,033	8,935	7,610	1,521	135,051
2016	97,830	11,420	8,300	6,300	1,320	130,738
2015	77,731	8,610	12,700	6,040	1,299	111,972
2014	86,628	13,380	14,920	13,290	1,890	139,041
2013	81,224	14,255	14,540	12,680	1,667	133,189
2012	85,726	11,740	10,710	7,240	1,447	124,081
2011	84,726	13,179	14,400	6,850	1,436	128,738
2010	59,428	12,479	8,720	6,990	1,835	95,627
2009	77,824	13,310	10,720	8,920	2,600	120,921
2008	72,022	7,542	7,060	9,170	2,290	104,815
2007	75,230	6,702	7,390	12,680	1,691	111,409
2006	84,932	6,603	5,731	7,332	1,770	111,877
2005	34,226	5,852	5,210	7,780	1,848	60,464
2004	24	5,252	4,670	7,720	2,175	25,348
2003	—	4,640	4,357	4,710	2,031	19,909
2002	—	5,045	4,223	6,826	2,319	22,416
2001	—	4,652	3,695	7,585	2,366	21,950
2000	—	4,699	4,848	4,048	2,121	18,272
1999	—	4,725	5,185	2,985	2,138	17,072
1998	—	5,645	6,579	3,759	2,872	21,514
1997	—	22,482	25,506	—	9,042	61,413
1996	—	22,627	25,635	—	9,120	61,782
1995	—	21,340	24,055	—	8,605	58,123
1994	—	22,097	25,010	—	8,960	60,608
1993	—	23,046	25,886	—	9,525	63,031
1992	—	14,296	14,110	—	6,417	37,436
1991	—	17,525	17,892	—	6,880	45,487
1990	—	15,680	16,000	—	6,252	40,585
1989	—	5,997	1,873	—	7,619	16,108
1988	—	23,984	—	—	29,696	54,043
1987	—	—	—	—	16,140	16,140