Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ARCH WOOD PROTECTION INC
2852 RAYSTONE DR, VALPARAISO, IN, 46383
Parent company: LONZA INC
Carcinogen
— 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 | Phosphoric acid | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Copper compounds | Arsenic compounds | Total (lbs) |
| 2019 | — | — | — | — | — | 2 |
| 2017 | — | — | — | 2 | — | 2 |
| 2016 | — | — | — | 2 | — | 2 |
| 2015 | — | — | — | 2 | — | 2 |
| 2008 | — | — | — | 2 | — | 2 |
| 2007 | 176 | — | — | 2 | — | 178 |
| 2006 | 489 | — | — | 2 | — | 491 |
| 2005 | 288 | — | — | 2 | — | 290 |
| 2004 | — | — | — | 2 | — | 2 |
| 2003 | — | — | 20 | 10 | 10 | 40 |
| 2002 | — | — | 19 | 11 | 10 | 40 |
| 2001 | — | — | 19 | 10 | 10 | 39 |
| 2000 | — | — | 19 | 11 | 10 | 40 |
| 1994 | — | 5 | 5 | 5 | 5 | 20 |
| 1993 | — | 5 | 5 | 5 | 5 | 20 |
| 1992 | — | 5 | 5 | 5 | 5 | 20 |
| 1991 | — | 5 | 5 | 5 | 5 | 20 |
| 1990 | — | 5 | 5 | 5 | 5 | 20 |
| 1989 | — | 250 | — | — | — | 250 |
| 1988 | — | 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.