Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HOOVER TREATED WOOD PRODUCTS INC.
385 WATERWAY RD, OXFORD, PA, 19363
Parent company: GRAHAM HOLDINGS CO
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 | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Copper compounds | Arsenic compounds | Arsenic | Chromium | Total (lbs) |
| 1995 | 10 | 10 | 10 | — | — | 30 |
| 1994 | 10 | 10 | 10 | — | — | 30 |
| 1993 | — | — | — | 15 | 10 | 35 |
| 1992 | 15 | 260 | 15 | — | — | 290 |
| 1990 | 10 | 10 | 10 | — | — | 30 |
| 1989 | 250 | 250 | 250 | — | — | 750 |
| 1988 | 250 | 250 | 250 | — | — | 750 |
| 1987 | 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.