Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MARTIN MARIETTA MAGNESIA SPECIALTIES INC
1800 EASTLAKE RD, MANISTEE, MI, 49660
Parent company: MARTIN MARIETTA MATERIALS INC
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 | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Total (lbs) | |||
| 1995 | 102,145 | — | 102,145 | |||
| 1994 | 58,086 | — | 58,086 | |||
| 1993 | 45,083 | — | 45,083 | |||
| 1992 | 85,083 | — | 85,083 | |||
| 1991 | 96,094 | — | 96,094 | |||
| 1990 | 93,100 | — | 93,100 | |||
| 1989 | 270,125 | — | 270,125 | |||
| 1988 | 280,079 | 1 | 280,080 | |||
| 1987 | 19,048 | — | 19,048 | |||
▎ 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.