Facility detail

TRI-STATE GENERATION & TRANSMISSION-NUCLA STATION

30739 DD30 RD, NUCLA, CO, 81424

Parent company: NA

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	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Hydrogen fluoride	Vanadium compounds	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Manganese compounds	Total (lbs)
2019	—	—	—	—	—	1
2018	—	—	—	—	—	1
2017	—	—	—	—	—	1
2016	358	—	—	—	—	362
2015	27,100	—	—	—	129	27,237
2014	27,854	—	—	—	122	27,983
2013	24,000	—	—	—	255	24,262
2012	36,700	—	37	—	189	36,936
2011	38,400	—	500	—	500	39,425
2010	31,600	—	—	—	—	31,612
2009	42,500	—	500	—	255	43,273
2008	45,900	—	500	—	255	46,687
2007	45,000	—	500	—	255	45,782
2006	46,500	—	47	—	205	46,780
2005	47,000	—	47	—	27	47,102
2004	46,550	—	50	—	27	46,674
2003	39,730	—	44	—	—	39,793
2002	43,953	—	56	2,306	—	46,333
2001	41,801	—	53	—	—	41,928
2000	41,125	—	52	—	—	41,223
1999	41,000	—	—	—	—	41,005
1998	76,000	9,400	—	—	—	85,405

▎ 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.