Facility detail

CALPORTLAND CO RILLITO PLANT

11115 N CASA GRANDE HWY, RILLITO, AZ, 85654

Parent company: TAIHEIYO CEMENT USA INC

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)	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Ammonia	Chromium compounds (except for chromite ore mined in the Transvaal Region)	Lead compounds	Total (lbs)
2024	—	—	469	—	—	547
2023	—	—	554	—	56	638
2022	—	—	586	—	53	665
2021	—	—	1,526	—	54	1,607
2020	—	—	4,702	—	—	4,784
2019	—	—	1,298	—	42	1,379
2018	—	—	—	—	50	87
2017	—	—	—	—	50	77
2016	—	—	—	—	34	78
2015	63,364	—	—	—	37	63,462
2014	63,863	—	—	—	48	63,979
2013	44,000	—	—	—	37	44,083
2012	45,200	—	—	—	24	45,279
2011	45,800	—	—	—	31	45,894
2010	50,809	—	—	—	22	50,899
2009	27,478	—	—	—	35	27,546
2008	47,235	—	—	—	56	47,357
2007	—	—	—	23	29	53
2006	—	—	—	—	34	34
2005	—	—	—	30	34	64
2004	—	—	—	32	35	67
2003	—	—	—	32	36	69
2001	—	—	—	29	77	107
2000	—	—	—	24	—	25
1999	—	—	—	23	—	23
1998	—	—	—	19	—	81
1997	—	—	—	19	—	81
1996	—	—	—	18	—	76
1995	—	104,478	—	17	—	104,495
1994	—	176,400	—	17	—	176,417
1993	—	—	—	500	—	510
1992	—	—	—	500	—	1,000
1991	—	—	—	500	—	500

▎ 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.