Facility detail

CHOLLA POWER PLANT

4801 FRONTAGE RD, JOSEPH CITY, AZ, 86032

Parent company: PINNACLE WEST CAPITAL 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 compounds (except for barium sulfate (CAS No. 7727-43-7))	Hydrogen fluoride	Manganese compounds	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Vanadium compounds	Total
2024	—	2,710	—	—	3,873	64,016
2023	—	4,284	—	—	4,699	93,672
2022	—	5,541	—	908	6,243	127,590
2021	38,057	4,080	12,417	—	3,090	64,490
2020	94,566	7,627	34,865	1,035	8,378	168,761
2019	75,988	6,223	23,011	915	5,950	127,155
2018	84,728	8,454	37,724	1,172	8,980	169,270
2017	140,831	9,093	50,801	1,176	11,576	245,882
2016	107,759	5,479	37,366	813	7,325	180,944
2015	399,481	12,841	160,085	1,773	32,599	703,705
2014	540,490	17,000	200,493	2,600	48,140	964,276
2013	650,690	27,000	180,794	3,000	54,190	1,091,740
2012	541,095	29,325	191,135	3,703	65,866	1,048,859
2011	573,380	29,564	270,692	4,022	66,473	1,181,643
2010	572,010	27,397	212,536	3,115	74,280	1,137,295
2009	1,431,327	121,985	237,849	19,372	113,486	2,225,206
2008	1,102,300	400,000	451,506	67,000	88,340	2,350,783
2007	951,500	420,000	140,910	58,000	81,360	1,899,669
2006	1,301,800	400,000	130,710	170,000	85,240	2,364,205
2005	1,302,100	440,000	130,600	190,000	89,270	2,417,681
2004	860,970	250,000	110,480	170,000	86,220	1,726,788
2003	680,920	180,000	110,510	120,000	100,280	1,444,665
2002	420,320	140,000	80,345	300,000	60,130	1,182,319
2001	430,710	160,000	82,516	330,000	62,240	1,232,705
2000	437,716	187,250	81,751	205,250	37,276	1,092,054
1999	489,705	199,250	90,471	219,250	—	1,142,541
1998	455,601	194,250	84,441	213,250	—	1,207,226