Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
AINSWORTH ENGINEERED USA LLC COOK OSB
9358 US 53 S, COOK, MN, 55723
Parent company: AINSWORTH LUMBER CO LTD
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 | Formaldehyde | Methanol | Acetaldehyde | Acrolein | Lead | Total (lbs) |
| 2007 | 5,692 | 9,295 | — | — | 2 | 14,991 |
| 2006 | 9,101 | 21,760 | — | — | — | 30,861 |
| 2005 | 7,743 | 15,738 | — | — | 3 | 23,484 |
| 2004 | 7,978 | 17,238 | — | — | 3 | 25,219 |
| 2003 | 28,934 | 14,615 | 35,301 | 21,626 | 416 | 100,892 |
| 2002 | 28,943 | 14,363 | 33,536 | 20,545 | — | 97,391 |
| 2001 | 27,178 | 13,233 | 23,055 | 13,700 | 350 | 77,520 |
| 2000 | 12,011 | 31,263 | — | — | — | 43,274 |
| 1999 | 26,848 | 31,263 | — | — | — | 58,111 |
| 1998 | 21,054 | 12,623 | — | — | — | 33,677 |
| 1997 | 29,674 | 66,263 | — | — | — | 95,937 |
| 1996 | 130,040 | 93,634 | — | — | — | 223,674 |
| 1995 | 138,982 | 100,040 | — | — | — | 239,022 |
| 1994 | 111,338 | — | — | — | — | 111,338 |
| 1993 | 111,418 | — | — | — | — | 111,418 |
| 1992 | 125,978 | — | — | — | — | 125,978 |
| 1991 | 147,938 | — | — | — | — | 147,938 |
| 1990 | 142,470 | — | — | — | — | 142,470 |
| 1989 | 147,258 | — | — | — | — | 147,258 |
| 1988 | 144,410 | — | — | — | — | 144,410 |
| 1987 | 136,970 | — | — | — | — | 136,970 |
▎ 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.