Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
5001 E. DRAKE ROAD, PAULDEN, AZ, 86334
Parent company: UNACEM N.A. INC
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
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 | Benzene | Copper | Naphthalene | Total (lbs) |
| 2024 | — | 3,800 | — | — | — | 3,942 |
| 2023 | — | 4,000 | — | — | — | 4,066 |
| 2022 | — | 4,400 | — | — | — | 4,475 |
| 2021 | — | 6,400 | — | — | — | 6,463 |
| 2020 | — | 5,400 | — | — | — | 5,473 |
| 2019 | — | 5,600 | — | — | — | 5,667 |
| 2018 | — | 9,600 | — | — | — | 9,661 |
| 2017 | — | 9,600 | — | — | — | 9,654 |
| 2016 | — | 4,180 | — | — | — | 4,232 |
| 2015 | 79,689 | 10,755 | — | — | — | 90,483 |
| 2014 | 79,689 | 10,755 | 9,082 | 3,008 | 965 | 104,612 |
| 2013 | 44,647 | 8,360 | 5,102 | 1,690 | 542 | 60,748 |
| 2012 | 41,942 | 13,679 | 4,768 | — | — | 60,393 |
| 2011 | — | 35,300 | — | — | — | 35,302 |
▎ 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.