Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
SEMCO INC
7704 ENON DR, ROANOKE, VA, 24019
Parent company: NA
Carcinogen
PBT
— 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 | Manganese | Lead | Total |
|---|---|---|---|---|
| 2003 | 1,445 | 21 | 6 | 1,472 |
| 2002 | 1,445 | 21 | 6 | 1,472 |
| 2001 | 1,445 | 21 | 6 | 1,472 |
| 2000 | 1,445 | 21 | 6 | 1,472 |
| 1999 | 1,445 | 21 | 6 | 1,472 |
| 1998 | 1,445 | 21 | 6 | 1,472 |