Facility detail

SPRINGERVILLE GENERATING STATION

12 MILES N 12 MILES E, SPRINGERVILLE, AZ, 85938

Parent company: UNS ENERGY CORP

Carcinogen PBT — EPA classifications across all reporting years

Year-over-year total releases

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

The 10 chemicals with the highest cumulative on-site releases across all available years.

Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.

Year	Barium	Barium compounds (except for barium sulfate (CAS No. 7727-43-7))	Manganese	Vanadium (except when contained in an alloy)	Barium And Barium Compounds	Total
2024	—	1,685,548	—	—	—	2,219,778
2023	—	1,659,785	—	—	—	2,451,146
2022	—	1,910,216	—	—	—	2,731,837
2021	—	1,757,605	—	—	—	2,651,134
2020	—	1,912,051	—	—	—	2,819,542
2019	—	2,062,352	—	—	—	3,006,509
2018	—	—	—	—	2,416,613	3,613,531
2017	2,326,200	—	350,579	135,617	—	3,354,961
2016	2,600,507	—	411,769	151,818	—	3,755,425
2015	2,840,928	—	399,975	160,084	—	4,042,235
2014	2,590,342	—	436,706	158,260	—	3,875,979
2013	2,779,894	—	481,251	173,339	—	4,253,226
2012	2,014,596	—	411,723	166,427	—	3,274,558
2011	2,847,659	—	488,588	157,345	—	4,231,272
2010	2,932,596	—	360,852	167,548	—	4,150,144
2009	1,692,911	—	307,736	114,095	—	2,658,394
2008	2,007,387	—	456,038	149,882	—	3,194,773
2007	2,255,027	—	494,496	164,755	—	3,553,538
2006	2,106,009	—	461,979	157,352	—	3,361,041
2005	1,312,508	—	492,796	142,980	—	2,378,751
2004	1,823,597	—	438,676	217,996	—	2,870,442
2003	1,913,329	—	457,237	228,308	—	3,006,803
2002	1,509,150	—	400,827	257,499	—	2,754,149
2001	1,300,413	—	460,145	210,068	—	2,441,499
2000	1,000,455	—	330,147	290,131	—	2,038,539
1999	1,022,067	—	329,501	—	—	1,767,611
1998	930,872	—	301,226	—	—	1,628,787