Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
WEYERHAEUSER CO
HWY 227 N, MOUNTAIN PINE, AR, 71956
Parent company: WEYERHAEUSER CO
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 | Methanol | Formaldehyde | Benzene | Naphthalene | Methyl isobutyl ketone | Total (lbs) |
| 2005 | — | — | — | — | — | 531 |
| 2004 | — | — | — | — | — | 558 |
| 2003 | — | — | — | — | — | 314 |
| 2002 | — | — | — | — | — | 272 |
| 2001 | 63,926 | — | — | — | — | 64,372 |
| 2000 | 79,218 | — | — | — | — | 79,218 |
| 1999 | 93,796 | 34,100 | 27,600 | 27,220 | 14,600 | 208,916 |
| 1998 | 63,847 | — | — | — | — | 63,847 |
| 1997 | 49,700 | — | — | — | — | 49,700 |
| 1996 | 14,895 | — | — | — | — | 14,895 |
| 1995 | 11,200 | — | — | — | — | 11,450 |
| 1994 | 15,959 | — | — | — | — | 15,959 |
| 1993 | 11,259 | — | — | — | — | 11,259 |
| 1992 | 11,000 | — | — | — | — | 11,000 |
| 1991 | 22,000 | — | — | — | — | 22,000 |
| 1990 | 23,384 | 8,351 | — | — | — | 31,735 |
| 1989 | 36,900 | 7,500 | — | — | — | 44,400 |
| 1988 | 25,000 | 5,150 | — | — | — | 37,600 |
| 1987 | 20,790 | — | — | — | — | 20,790 |
▎ 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.