Facility detail

SOLENIS LLC

3366 NW YEON AVE, PORTLAND, OR, 97210

Parent company: OLYMPUS WATER US HOLDING CORP

Carcinogen — EPA classifications across all reporting years

Year-over-year total releases

Reported on-site TRI releases in pounds (lbs), grouped by reporting year.

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 Epichlorohydrin Formaldehyde Formic acid Naphthalene Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) Total (lbs)
2024 3,365 — 20 — — 3,385
2023 3,475 — 23 — — 3,498
2022 3,475 — 23 — — 3,498
2021 3,364 — 21 — — 3,385
2020 3,362 — 21 — — 3,383
2019 3,362 — 22 — — 3,384
2018 3,365 — 22 — — 3,387
2017 3,365 — 22 — — 3,387
2016 3,365 — 23 — — 3,388
2015 3,369 — 22 — — 3,391
2014 3,363 — 21 — — 3,384
2013 3,362 — 20 176 — 3,558
2012 3,361 — 19 175 — 3,555
2011 3,357 — 21 171 — 3,549
2010 3,359 — 23 175 — 3,557
2009 3,363 — 23 181 — 3,567
2008 3,362 — 24 179 — 3,565
2007 3,364 — 23 180 — 3,567
2006 3,364 — 25 185 — 3,574
2005 3,356 — 33 177 — 3,566
2004 3,419 — 7 203 — 3,629
2003 3,389 — 6 — — 3,395
2002 3,375 — — — — 3,375
2001 3,905 — — — — 3,905
2000 3,916 — — — — 3,916
1999 3,915 — — — — 3,915
1998 3,904 — 3 — — 3,907
1997 2,408 795 7 — — 3,210
1996 4,762 1,506 7 — — 6,275
1995 4,778 1,711 774 — — 7,263
1994 4,767 2,254 2,003 — — 9,024
1993 4,230 390 — — — 4,620
1992 2,620 1,840 — — — 4,460
1991 98 540 — — — 638
1990 140 2,983 — — 10 3,133
1989 1,351 1,490 — — 500 3,341
1988 — — — — — 500
1987 1,493 — — — — 1,493

▎ 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.