Facility detail

DIAMOND SHAMROCK REFINING CO LP

6701 FM 119, SUNRAY, TX, 79086

Parent company: VALERO ENERGY 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, 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	Ammonia	Methanol	Toluene	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	Benzene	Total
2024	166,850	245,042	55,300	123,735	50,605	910,536
2023	231,437	452,046	88,000	76,879	62,500	1,542,810
2022	232,405	31,790	53,505	28,250	45,105	968,289
2021	231,405	26,250	55,605	33,250	48,605	934,025
2020	195,405	27,250	78,305	34,250	79,705	870,723
2019	249,255	27,250	96,400	44,250	93,203	824,121
2018	273,617	61,564	111,478	50,522	102,507	1,003,753
2017	243,043	59,250	129,068	60,100	74,451	951,000
2016	254,472	51,598	150,239	116,483	127,139	1,468,068
2015	483,368	49,101	67,736	13,358	60,985	1,196,251
2014	370,865	49,998	73,070	114,846	85,297	1,073,774
2013	254,299	32,681	47,623	77,324	63,301	1,274,719
2012	266,294	31,501	63,804	112,509	50,309	783,666
2011	341,416	15,848	102,214	191,937	69,157	1,018,982
2010	299,369	22,090	83,197	425,123	63,593	1,175,288
2009	172,440	139,772	44,739	100,550	32,949	727,135
2008	208,791	168,618	138,928	88,258	39,804	795,930
2007	260,401	158,506	129,444	90,685	34,447	790,787
2006	388,149	151,476	57,753	95,631	53,793	1,153,755
2005	459,398	35,458	62,065	59,201	63,773	922,736
2004	143,696	109,389	72,838	40,044	70,851	871,111
2003	160,318	112,574	55,336	—	36,071	763,869
2002	109,331	13,721	37,649	—	31,664	360,964
2001	8,788	32,774	22,157	—	17,894	260,316
2000	34,276	23,333	30,105	—	19,481	307,979
1999	14,044	16,492	64,415	—	32,622	576,525
1998	118,659	481,924	46,253	—	26,130	926,241
1997	112,172	275,968	68,614	—	31,105	767,616
1996	60,260	153,890	45,255	—	24,110	674,075
1995	449,744	241,639	50,735	—	19,221	1,138,037
1994	467,100	26,285	54,138	—	16,375	911,823
1993	639,422	26,765	62,438	—	22,852	1,069,344
1992	680,101	236,108	44,684	—	17,674	1,255,155
1991	261,110	215,745	62,180	—	23,360	828,165
1990	500,890	310,405	53,500	—	24,490	1,202,145
1989	780,890	417,071	58,900	—	20,770	1,504,247
1988	—	8,716	47,300	—	24,400	166,038
1987	—	—	—	—	15,880	150,360