Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
CALPORTLAND CO MOJAVE PLANT
9350 OAK CREEK RD, MOJAVE, CA, 93501
Parent company: TAIHEIYO CEMENT USA INC
Carcinogen
PBT
— EPA classifications across all reporting years
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) | Ammonia | Lead compounds | Manganese compounds | Lead And Lead Compounds | Total (lbs) |
| 2024 | — | 6,952 | — | — | 378 | 7,369 |
| 2023 | — | 7,011 | 373 | — | — | 7,438 |
| 2022 | — | 6,131 | 324 | — | — | 6,502 |
| 2021 | — | 6,682 | 387 | — | — | 7,111 |
| 2020 | — | 4,190 | — | — | 383 | 4,638 |
| 2019 | — | 5,291 | 406 | — | — | 5,766 |
| 2018 | — | 714 | — | — | 388 | 1,158 |
| 2017 | — | 740 | 414 | — | — | 1,203 |
| 2016 | — | 680 | 373 | — | — | 1,105 |
| 2015 | 57,407 | 680 | 359 | — | — | 58,530 |
| 2014 | 66,089 | 1,952 | 400 | — | — | 68,588 |
| 2013 | 101,773 | 1,816 | 347 | — | — | 104,040 |
| 2012 | 36,151 | — | 394 | — | — | 36,616 |
| 2011 | 35,197 | — | 372 | — | — | 35,636 |
| 2010 | 37,881 | — | 399 | — | — | 38,363 |
| 2009 | 33,017 | — | 386 | — | — | 33,485 |
| 2008 | 36,599 | — | 431 | — | — | 37,100 |
| 2007 | 36,936 | — | 193 | — | — | 37,143 |
| 2006 | 36,211 | — | 190 | — | — | 36,414 |
| 2005 | 37,955 | — | 198 | — | — | 38,167 |
| 2004 | 35,824 | — | 211 | — | — | 36,188 |
| 2003 | 35,984 | — | 188 | — | — | 36,328 |
| 2002 | 39,056 | — | 221 | — | — | 39,439 |
| 2001 | 35,984 | — | 212 | — | — | 36,430 |
| 2000 | 38,357 | — | — | 345 | — | 38,727 |
| 1999 | 44,460 | — | — | — | — | 44,460 |
| 1998 | 41,892 | — | — | 1,240 | — | 43,140 |
| 1997 | 42,398 | — | — | — | — | 42,405 |
| 1996 | — | — | — | — | — | 7 |
| 1995 | 39,451 | — | — | — | — | 39,461 |
| 1994 | 37,175 | — | — | — | — | 37,185 |
| 1993 | 36,800 | — | — | — | — | 36,810 |
| 1992 | 34,692 | — | — | — | — | 34,702 |
| 1991 | 38,517 | — | — | — | — | 38,527 |
| 1990 | 35,950 | — | — | — | — | 35,960 |
▎ 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.