Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
KNIGHT METALCRAFT CORP
LONGVIEW DR, PORTLAND, TN, 37148
Parent company: ERICO INTERNATIONAL INC
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Copper compounds | Nickel compounds | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Sodium hydroxide (solution) | Total |
|---|---|---|---|---|---|---|
| 1991 | 500 | 500 | 500 | 500 | — | 2,000 |
| 1990 | 255 | 255 | 250 | — | — | 760 |
| 1987 | — | — | — | — | 500 | 500 |