Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SIMKINS IND INC
201 RIVER RD, CATONSVILLE, MD, 21228
Parent company: SIMKINS IND 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 | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Sodium hydroxide (solution) | Chlorine | Total (lbs) | ||
| 1990 | 162,840 | — | 250 | 163,090 | ||
| 1989 | 108,000 | — | — | 108,000 | ||
| 1988 | — | 240,000 | 250 | 240,250 | ||
▎ 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.