Facility detail

WESTPORT LLC

1807 N NYHUS ST, WESTPORT, WA, 98595

Parent company: WESTPORT LLC

Carcinogen — EPA classifications across all reporting years

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Year-over-year total releases

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

Top chemical totals

The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) 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.

All values in pounds (lbs)
Year	Styrene	Acetone	Total (lbs)
2024	755	—	755
2023	2,280	—	2,280
2022	2,186	—	2,186
2021	3,588	—	3,588
2020	2,294	—	2,294
2019	5,192	—	5,192
2018	7,127	—	7,127
2017	9,285	—	9,285
2016	8,078	—	8,078
2015	17,453	—	17,453
2014	11,729	—	11,729
2013	20,201	—	20,201
2012	23,873	—	23,873
2011	33,113	—	33,113
2010	14,230	—	14,230
2009	20,493	—	20,493
2008	46,340	—	46,340
2007	59,221	—	59,221
2006	47,394	—	47,394
2005	39,720	—	39,720
2004	25,813	—	25,813
2003	19,562	—	19,562
2002	21,592	—	21,592
2001	21,592	—	21,592
2000	19,063	—	19,063
1999	22,214	—	22,214
1998	19,777	—	19,777
1997	12,546	—	12,546
1996	10,207	—	10,207
1995	8,904	—	8,904
1992	6,223	20,894	27,117
1991	4,300	20,200	24,500
1990	3,170	20,040	23,210
1989	17,500	38,900	56,400

▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.