Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SEMCO INC
1025 POLE LN RD, MARION, OH, 43302
Parent company: SEMCO 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 | 1,1,1-Trichloroethane | Copper | Total (lbs) | |||
| 2019 | — | 332 | 332 | |||
| 2018 | — | 86 | 86 | |||
| 2017 | — | 76 | 76 | |||
| 2016 | — | 5 | 5 | |||
| 2015 | — | 5 | 5 | |||
| 2003 | — | 1 | 1 | |||
| 2002 | — | 65 | 65 | |||
| 2001 | — | 65 | 65 | |||
| 2000 | — | 65 | 65 | |||
| 1999 | — | 65 | 65 | |||
| 1998 | — | 65 | 65 | |||
| 1997 | — | 65 | 65 | |||
| 1996 | — | 48 | 48 | |||
| 1995 | — | 65 | 65 | |||
| 1994 | — | 65 | 65 | |||
| 1993 | — | 214 | 214 | |||
| 1992 | 13,000 | 153 | 13,153 | |||
| 1991 | 13,000 | 5 | 13,005 | |||
| 1990 | 14,000 | 5 | 14,005 | |||
| 1989 | 15,000 | — | 15,000 | |||
▎ 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.