Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
9 BRIDGE ST, WEYMOUTH, MA, 02191
Parent company: CALPINE CORP
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 | Ammonia | Lead compounds | Polycyclic aromatic compounds | Total (lbs) | ||
| 2024 | 21,036 | — | 4 | 21,040 | ||
| 2023 | 16,805 | — | — | 16,805 | ||
| 2022 | 22,854 | — | 5 | 22,859 | ||
| 2021 | 20,800 | — | — | 20,800 | ||
| 2020 | 15,200 | — | — | 15,200 | ||
| 2018 | 17,400 | — | 4 | 17,404 | ||
| 2017 | 24,400 | — | — | 24,400 | ||
| 2015 | 21,108 | — | — | 21,108 | ||
| 2008 | 11,470 | — | — | 11,470 | ||
| 2007 | 13,463 | — | — | 13,463 | ||
| 2006 | 47,656 | 282 | 1 | 47,939 | ||
▎ 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.