Facility detail

KOCH MEMBRANE SYSTEMS

10054 OLD GROVE RD, SAN DIEGO, CA, 92131

Parent company: KOCH CHEMICAL TECHNOLOGY CO 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	1,1,1-Trichloroethane	1,4-Dioxane	Acetone	N,N-Dimethylformamide	Dichloromethane	Total (lbs)
2010	—	2,989	—	1,000	—	4,989
2009	—	2,435	—	1,000	—	4,935
2008	—	2,518	—	1,000	—	4,523
2007	—	1,936	—	1,000	—	3,441
2006	—	2,425	—	1,340	—	4,270
2005	—	3,151	—	1,000	—	4,656
2004	—	579	—	1,645	—	2,444
2003	—	591	—	1,772	—	2,868
2002	—	500	—	1,895	—	3,400
2001	—	500	—	2,052	—	3,307
2000	—	610	—	2,114	—	3,167
1999	—	646	—	2,002	—	3,073
1998	—	820	—	2,101	—	3,609
1997	—	643	—	2,933	—	4,118
1996	—	913	—	2,404	—	3,804
1995	—	349	—	922	—	1,906
1994	—	804	—	—	—	997
1993	—	552	2,947	—	—	3,593
1992	15,085	808	2,154	—	—	18,047
1991	10,312	2,101	8,066	—	—	20,479
1990	17,524	2,281	5,697	—	—	25,913
1989	9,486	2,111	3,482	—	—	15,079
1988	—	6,840	8,760	—	—	15,600
1987	—	—	—	—	10,200	10,200

▎ 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.