Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
CALPORTLAND CO NATIONAL CITY READY-MIXED
601 W 12TH ST, NATIONAL CITY, CA, 91950
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 | Aluminum (fume or dust) | Lead compounds | Lead And Lead Compounds | Lead | Mercury And Mercury Compounds | Total (lbs) |
| 2021 | 23 | — | 0 | — | — | 23 |
| 2020 | — | — | 0 | — | 0 | 0 |
| 2019 | — | — | 0 | — | 0 | 0 |
| 2018 | — | — | 0 | — | 0 | 0 |
| 2017 | — | 7 | — | — | — | 7 |
| 2016 | — | — | — | 0 | — | 0 |
| 2015 | — | — | — | 0 | — | 0 |
| 2014 | — | — | — | 0 | — | 0 |
▎ 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.