Facility detail

U.S. ARMY UMATILLA CHEMICAL DEPOT

78798 ORDNANCE RD, HERMISTON, OR, 978389544

Parent company: US DEPARTMENT OF DEFENSE

Carcinogen PBT — 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 Ethylene glycol Manganese Phosphorus (yellow or white) Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) Lead Total (lbs)
2011 36 1 37
2010 60 1 61
2009 212 64 276
2008 6 12 18
2007 6 25 12 71
2006 890 74 964
2005 1,228 1,062 69 2,359
2004 0
2002 5 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.