Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NORTH AMERICAN REFRACTORIES CO
RT 879, CURWENSVILLE, PA, 168330056
Parent company: NORTH AMERICAN REFRACTORIES CO
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 | Aluminum oxide (fibrous forms) | Phosphoric acid | Phenol | Ethylene glycol | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Total (lbs) |
| 2000 | — | — | — | — | 40 | 40 |
| 1999 | — | — | — | — | 156 | 156 |
| 1998 | — | 750 | — | — | — | 1,000 |
| 1997 | — | 2,621 | — | 512 | — | 3,133 |
| 1996 | — | 3,120 | — | 850 | — | 3,970 |
| 1995 | — | 5,218 | — | 1,268 | — | 6,486 |
| 1994 | — | 4,368 | 5 | 755 | — | 5,383 |
| 1993 | — | 2,320 | 5 | 500 | — | 3,080 |
| 1992 | — | 1,900 | 750 | 255 | — | 3,160 |
| 1991 | — | 3 | 750 | 755 | — | 1,763 |
| 1990 | — | 9,300 | 1,157 | 1,533 | 1,103 | 13,348 |
| 1989 | — | 4,900 | 4,900 | 4,100 | 750 | 15,150 |
| 1988 | 467,557 | — | 7,195 | — | — | 474,752 |
▎ 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.