Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
UNISEA INC.
88 SALMON WAY, DUTCH HARBOR, AK, 99692
Parent company: NA
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 | Chlorine | Total (lbs) | |||
| 2024 | 3,809 | — | 3,809 | |||
| 2023 | 2,198 | — | 2,198 | |||
| 2022 | 2,816 | — | 2,816 | |||
| 2021 | 4,842 | — | 4,842 | |||
| 2020 | 2,023 | — | 2,023 | |||
| 2019 | 1,974 | — | 1,974 | |||
| 2018 | 4,545 | — | 4,545 | |||
| 2016 | 3,406 | — | 3,406 | |||
| 2015 | 1,852 | — | 1,852 | |||
| 2013 | 3,382 | — | 3,382 | |||
| 2009 | 1,000 | — | 1,000 | |||
| 2007 | 7 | — | 7 | |||
| 2004 | 3,425 | — | 3,425 | |||
| 2003 | 7,767 | — | 7,767 | |||
| 2002 | 5,027 | — | 5,027 | |||
| 2001 | 4,309 | — | 4,309 | |||
| 2000 | 8,551 | — | 8,551 | |||
| 1998 | 250 | — | 250 | |||
| 1997 | 350 | — | 350 | |||
| 1996 | 1,700 | — | 1,700 | |||
| 1994 | 250 | 10 | 260 | |||
| 1993 | 250 | 10 | 260 | |||
| 1992 | 250 | 10 | 260 | |||
| 1991 | 250 | 5 | 255 | |||
| 1990 | 250 | — | 250 | |||
▎ 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.