Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
W N STEVENSON CO
246 ROCK HILL RD, BALA CYNWYD, PA, 19004
Parent company: NA
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 | Methyl ethyl ketone | Toluene | Methyl isobutyl ketone | n-Hexane | Dichloromethane | Total (lbs) |
| 1999 | 412 | 151 | 109 | 56 | 45 | 839 |
| 1998 | 231 | 265 | 107 | — | 4 | 670 |
▎ 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.