Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ROYAL CHEMICAL CO
2498 AMERICAN AVE, HAYWARD, CA, 94545
Parent company: CHEMICAL SERVICES GROUP
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 | Nitric acid | Nonylphenol Ethoxylates | Certain glycol ethers | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Sodium nitrite | Total (lbs) |
| 2024 | 167 | 37 | 23 | — | — | 226 |
| 2023 | 167 | 37 | 23 | — | — | 226 |
| 2022 | 234 | 49 | 35 | 1 | 8 | 327 |
| 2021 | 244 | 70 | 30 | 28 | 9 | 380 |
| 2020 | 143 | 51 | 31 | 18 | 14 | 257 |
▎ 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.