Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HANSON AGGREGATES PACIFIC SOUTHWEST INC
9229 HARRIS PLANT RD, SAN DIEGO, CA, 92163
Parent company: LEHIGH HANSON
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 | Polycyclic aromatic compounds | Lead compounds | Lead And Lead Compounds | Mercury compounds | Mercury And Mercury Compounds | Total (lbs) |
| 2020 | — | — | 0 | — | 0 | 0 |
| 2019 | — | — | 0 | — | 0 | 0 |
| 2018 | — | — | 0 | — | 0 | 0 |
| 2017 | — | 2 | — | 0 | — | 2 |
| 2007 | — | 0 | — | — | — | 0 |
| 2006 | — | 0 | — | 0 | — | 0 |
| 2005 | — | 0 | — | — | — | 0 |
| 2003 | 24 | — | — | — | — | 24 |
| 2002 | 26 | — | — | — | — | 26 |
| 2001 | 226 | — | — | — | — | 226 |
▎ 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.