Facility detail

PENRAY COS INC

440 DENNISTON CT, WHEELING, IL, 60090

Parent company: PLZ AEROSCIENCE CORP

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	Toluene	Acetone	Tetrachloroethylene	n-Hexane	Total (lbs)
2018	—	78	—	114	—	338
2017	—	335	—	173	—	742
2016	—	284	—	272	—	833
2015	—	887	—	213	—	1,314
2014	—	12	—	43	—	130
2013	—	15	—	19	—	97
2012	—	—	—	—	—	162
2011	—	65	—	455	219	1,156
2010	—	75	—	515	219	1,216
2009	—	75	—	515	726	1,723
2007	—	58	—	494	716	1,681
2006	—	143	—	509	1,368	2,102
2005	—	1,593	—	377	1,740	5,986
2004	—	4,134	—	526	3,364	14,506
2003	—	96	—	289	1,644	2,387
2002	—	135	—	352	—	971
2001	—	157	—	309	1,195	1,898
2000	—	160	—	223	690	1,161
1999	—	282	—	198	—	583
1998	—	314	—	211	235	860
1997	—	260	—	260	1,158	1,978
1996	—	183	—	211	—	496
1995	—	423	—	260	—	1,035
1994	3,383	1,385	—	1,331	—	6,659
1993	5,886	1,281	2,722	270	—	10,803
1992	15,334	3,673	5,978	—	—	29,307
1991	12,290	635	2,265	—	—	15,563
1990	14,878	638	2,807	—	—	19,150
1989	7,879	1,298	4,368	622	—	14,644
1988	7,369	1,208	1,498	2,737	—	18,296
1987	—	—	—	2,604	—	3,065

▎ 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.