Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HENLOPEN MANUFACTURING CO INC
401 PARK RD, WATERTOWN, CT, 06795
Parent company: HENLOPEN MANUFACTURING CO INC
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 | 1,1,1-Trichloroethane | Trichloroethylene | Methyl ethyl ketone | Aluminum oxide (fibrous forms) | Total (lbs) | |
| 2000 | — | 22,540 | — | — | 22,540 | |
| 1999 | — | 11,400 | — | — | 11,400 | |
| 1998 | — | 18,487 | 675 | — | 19,162 | |
| 1997 | — | 17,455 | 952 | — | 18,407 | |
| 1996 | — | 19,290 | 572 | — | 19,862 | |
| 1995 | — | 16,966 | 668 | — | 17,634 | |
| 1994 | — | 17,893 | 1,314 | — | 19,207 | |
| 1993 | 19,957 | 10,023 | 1,800 | — | 31,780 | |
| 1992 | 83,023 | — | 398 | — | 83,421 | |
| 1991 | 124,890 | — | — | — | 124,890 | |
| 1990 | 126,828 | — | — | — | 126,828 | |
| 1989 | 123,315 | — | — | 250 | 123,565 | |
| 1987 | 75,000 | — | — | — | 75,000 | |
▎ 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.