Facility detail

SIMPLOT PHOSPHATES LLC

515 S HWY 430, ROCK SPRINGS, WY, 82901

Parent company: J R SIMPLOT CO

Carcinogen PBT — EPA classifications across all reporting years

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Year-over-year total releases

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

Top chemical totals

The 10 chemicals with the highest cumulative on-site releases 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.

Year	Hydrogen fluoride	Chromium compounds (except for chromite ore mined in the Transvaal Region)	Zinc compounds	Ammonia	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Total
2024	1,218,462	404,966	292,659	171,911	50,312	2,365,009
2023	992,299	400,009	289,202	168,207	28,582	2,115,816
2022	944,560	432,245	312,406	154,020	29,278	2,145,028
2021	804,942	381,887	313,754	138,400	33,693	1,908,404
2020	955,572	—	278,742	138,546	26,639	1,954,346
2019	1,083,567	408,321	295,241	121,990	19,849	2,194,931
2018	1,181,580	—	324,601	119,630	15,146	2,384,196
2017	1,316,415	463,797	336,071	71,300	16,318	2,499,150
2016	1,281,520	474,845	334,938	46,101	17,441	2,451,793
2015	1,302,164	471,503	340,503	44,276	19,207	2,526,240
2014	1,090,127	401,767	290,139	39,184	13,824	2,135,578
2013	1,026,912	305,319	251,066	39,139	15,924	1,940,769
2012	1,061,936	319,271	262,286	39,019	17,419	1,996,935
2011	1,029,629	307,948	252,942	54,269	23,429	1,936,007
2010	1,107,494	329,167	270,373	56,924	29,428	2,026,852
2009	899,656	278,546	228,791	22,076	25,788	1,650,091
2008	810,382	293,489	241,066	11,267	29,319	1,586,463
2007	1,004,503	316,051	259,600	11,632	33,005	1,851,324
2006	1,187,285	333,479	273,915	40,369	32,005	2,095,540
2005	1,227,591	337,291	277,046	50,419	25,005	2,137,799
2004	1,255,740	339,497	278,858	59,519	32,005	2,153,198
2003	22,200	—	—	47,519	32,005	137,859
2002	22,500	—	—	61,519	33,005	152,458
2001	22,300	—	—	50,519	34,005	139,993
2000	21,000	—	—	31,250	33,005	96,332
1999	20,750	—	—	12,250	34,005	80,010
1998	21,000	—	—	21,677	105,221	163,073
1997	4,750	—	—	6,559	100,524	134,109
1996	4,800	—	—	47,281	96,940	163,588
1995	8,500	—	—	31,550	47,651	88,637
1994	5,000	—	—	27,615	17,216	50,764
1993	11,978	—	—	27,958	41,277	129,449
1992	7,556	—	—	65,908	30,975	105,521
1991	7,893	—	—	106,098	76,961	218,338
1990	7,700	—	—	132,150	10,200	150,231
1989	8,300	—	—	141,150	10,600	166,901
1988	—	—	—	154,950	377,400	532,350
1987	—	—	—	—	10,022	10,022