Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PARLEX CORP
ONE PARLEX PL, METHUEN, MA, 01844
Parent company: NA
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 | Freon 113 (CFC-113) | Ammonia | Nitric acid | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Sodium hydroxide (solution) | Total (lbs) |
| 2005 | — | 12 | 3 | 2 | — | 17 |
| 2004 | — | 12 | 5 | 3 | — | 20 |
| 2003 | — | 12 | 6 | 3 | — | 21 |
| 2002 | — | 30 | 7 | 4 | — | 41 |
| 2001 | — | 50 | 8 | 5 | — | 63 |
| 2000 | — | 850 | 325 | 278 | — | 1,463 |
| 1999 | — | 620 | 284 | 619 | — | 1,533 |
| 1998 | — | 710 | 2,205 | — | — | 2,925 |
| 1997 | — | 500 | 343 | — | — | 853 |
| 1996 | — | 420 | 374 | — | — | 804 |
| 1995 | — | — | 409 | — | — | 419 |
| 1994 | — | 620 | 334 | 494 | — | 1,480 |
| 1993 | — | 1,000 | 322 | 380 | — | 1,702 |
| 1992 | 25,000 | 860 | 245 | 281 | — | 26,386 |
| 1991 | 28,900 | 1,640 | 145 | 270 | — | 31,015 |
| 1990 | 26,700 | 255 | 255 | 500 | — | 27,960 |
| 1989 | 30,420 | — | 28 | 318 | — | 31,016 |
| 1988 | — | 82 | — | — | 318 | 400 |
| 1987 | — | — | — | — | 837 | 837 |
▎ 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.