Facility detail

INTERPLASTIC CORP

5019 HUNT ST, PRYOR, OK, 74361

Parent company: IP CORP

Carcinogen PBT — 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	Maleic anhydride	Phthalic anhydride	Dicyclopentadiene	Total (lbs)
2024	10,058	—	163	113	391	10,841
2023	13,450	—	95	103	97	14,343
2022	17,193	—	105	38	190	18,426
2021	15,411	—	324	2,672	344	18,950
2020	11,056	—	415	1,340	125	13,028
2019	13,981	—	464	1,163	217	15,917
2018	11,564	—	479	1,053	107	13,312
2017	14,445	—	467	1,001	104	16,020
2016	13,698	—	444	979	95	15,221
2015	9,022	—	422	783	54	10,286
2014	7,515	—	437	733	60	8,749
2013	5,776	—	405	674	52	6,930
2012	5,654	—	358	585	45	6,661
2011	4,784	—	249	546	25	5,620
2010	3,903	—	183	593	24	4,723
2009	2,997	—	234	764	24	4,037
2008	11,720	—	282	668	501	13,240
2007	9,250	—	25,500	255	255	35,525
2006	2,615	—	730	272	47	3,759
2005	5,100	—	120	322	662	6,212
2004	4,342	—	118	554	2,884	7,905
2003	5,930	—	120	556	2,122	8,780
2002	11,680	—	270	896	1,904	14,839
2001	31,122	—	486	1,102	1,866	34,734
2000	33,346	—	500	1,830	500	36,431
1999	38,026	—	250	1,368	250	39,904
1998	42,054	—	128	258	159	49,295
1997	119,303	—	282	284	289	120,240
1996	166,991	—	196	410	156	167,856
1995	101,276	—	255	1,733	255	103,536
1994	43,520	—	176	1,909	—	45,615
1993	44,398	80,100	261	1,015	—	126,029
1992	115,012	152,886	250	1,757	—	272,358
1991	58,681	87,614	250	1,774	—	150,094
1990	105,689	165,198	250	1,330	—	272,717
1989	33,469	10,336	279	2,119	—	46,331
1988	—	293	9	1,536	—	1,839
1987	—	—	1,000	—	—	1,128

▎ 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.