Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
COMMONWEALTH UTILITIES CORP (CUC)
SONGSONG VILLAGE, ROTA, MP, 96951
Parent company: COMMONWEALTH UTILITIES CORP
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 | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Naphthalene | Ethylbenzene | Zinc compounds | Polycyclic aromatic compounds | Total (lbs) |
| 2019 | — | 8 | — | 0 | — | 8 |
| 2018 | — | 8 | — | 0 | — | 8 |
| 2017 | — | 8 | — | 0 | — | 8 |
| 2016 | — | 7 | — | 0 | — | 8 |
| 2015 | — | 10 | — | 1 | — | 11 |
| 2014 | — | 3 | — | 2 | — | 5 |
| 2013 | — | 10 | — | 11 | — | 21 |
| 2012 | 2,512 | 103 | 63 | 13 | 25 | 2,737 |
| 2011 | — | 12 | — | — | — | 12 |
| 2010 | — | 15 | — | — | — | 15 |
▎ 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.