Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NGK METALS CORP
150 TUCKERTON RD, READING, PA, 196123367
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 | Copper compounds | Freon 113 (CFC-113) | Beryllium compounds | 1,1,1-Trichloroethane | Trichloroethylene | Total (lbs) |
| 2000 | 42 | — | 28 | — | — | 70 |
| 1999 | 167 | — | 111 | — | — | 278 |
| 1998 | 167 | — | 111 | — | — | 278 |
| 1997 | 4,800 | — | 207 | — | — | 21,017 |
| 1996 | 21,305 | — | 12,111 | — | — | 45,787 |
| 1995 | 28,312 | — | 23,112 | — | — | 61,602 |
| 1994 | 94,295 | — | 17,112 | — | 1,700 | 113,509 |
| 1993 | 42,360 | — | 8,114 | — | 50,000 | 100,852 |
| 1992 | 271,641 | — | 48,265 | 32,000 | — | 358,104 |
| 1991 | 173,128 | — | 30,250 | 62,000 | — | 270,190 |
| 1990 | 232,369 | 33,700 | 40,234 | 43,000 | — | 355,213 |
| 1989 | 202,506 | 115,800 | 36,233 | 20,000 | — | 385,681 |
| 1988 | 63,634 | 88,400 | 12,378 | — | — | 164,543 |
| 1987 | — | — | — | — | — | 50 |
▎ 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.