Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
OCEAN STATE POWER
1575 SHERMAN FARM RD, HARRISVILLE, RI, 02830
Parent company: LS POWER DEVELOPMENT LLC
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 | Ammonia | Naphthalene | Polycyclic aromatic compounds | Benzo[g,h,i]perylene | Total (lbs) | |
| 2024 | 171,550 | — | — | — | 171,550 | |
| 2023 | 143,296 | — | — | — | 143,296 | |
| 2022 | 121,770 | — | — | — | 121,770 | |
| 2021 | 190,414 | — | — | — | 190,414 | |
| 2020 | 81,596 | — | — | — | 81,596 | |
| 2019 | 57,427 | 10,929 | — | — | 68,356 | |
| 2018 | 55,471 | — | — | — | 55,471 | |
| 2017 | 104,237 | — | — | — | 104,237 | |
| 2016 | 76,102 | — | 52 | 0 | 76,155 | |
| 2015 | 128,402 | — | 61 | 0 | 128,464 | |
| 1998 | 366,400 | — | — | — | 366,400 | |
▎ 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.