Facility detail

STONE INDUSTRIAL

9207 51ST AVE, COLLEGE PARK, MD, 20740

Parent company: PRECISION PRODUCTS GROUP

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	Dichloromethane	Methyl ethyl ketone	1,1,1-Trichloroethane	Toluene	Formaldehyde	Total (lbs)
2016	—	—	—	714	—	714
2015	—	—	—	509	—	509
2013	—	—	—	755	—	755
2012	—	—	—	755	—	755
2011	—	—	—	755	—	755
2010	—	—	—	755	—	755
2007	—	—	—	755	—	755
2006	—	—	—	755	—	755
2005	—	—	—	755	—	755
2004	—	—	—	755	—	755
2003	—	4,094	—	755	—	4,849
2002	—	—	—	755	—	755
2001	—	4,110	—	755	—	4,865
2000	—	4,940	—	3	—	4,943
1999	—	4,565	—	932	—	5,497
1998	—	4,320	—	707	—	5,027
1997	—	4,020	—	695	—	4,715
1996	—	3,523	—	728	—	4,251
1995	—	4,356	—	1,808	—	6,164
1994	—	9,050	—	3,572	—	12,622
1993	52,613	37,124	—	—	—	89,737
1992	97,212	80,587	15,236	—	—	193,035
1991	88,507	67,600	15,825	—	—	171,932
1990	90,000	78,000	28,000	—	500	196,500
1989	90,000	78,000	28,000	—	500	196,500
1988	90,300	—	28,296	—	500	119,096
1987	—	70,450	—	—	—	70,450

▎ 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.