Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
BLACKHAWK FOUNDRY & MACHINE CO
323 S CLARK ST, DAVENPORT, IA, 52802
Parent company: NA
Carcinogen
PBT
— EPA classifications across all reporting years
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 | Phenol | Dibutyl phthalate | Manganese | Formaldehyde | 1,1,1-Trichloroethane | Total (lbs) |
| 2008 | — | — | 80 | — | — | 400 |
| 2007 | — | — | 98 | — | — | 526 |
| 2006 | — | — | 80 | — | — | 435 |
| 2005 | — | — | 80 | — | — | 435 |
| 2004 | — | — | 80 | — | — | 435 |
| 2003 | 1,320 | — | 60 | — | — | 1,814 |
| 2002 | 1,440 | — | — | — | — | 1,730 |
| 2001 | 1,780 | — | — | — | — | 5,561 |
| 2000 | 2,122 | — | — | — | — | 2,122 |
| 1999 | 650 | — | — | — | — | 661 |
| 1998 | 890 | — | — | — | — | 903 |
| 1997 | 808 | — | — | — | — | 819 |
| 1996 | 825 | — | — | — | — | 835 |
| 1995 | 882 | — | — | — | — | 893 |
| 1994 | 772 | — | — | — | — | 782 |
| 1993 | 7,900 | — | 2,710 | 325 | — | 10,992 |
| 1992 | 6,605 | — | 2,710 | — | — | 9,372 |
| 1991 | 61,400 | — | 2,850 | — | — | 64,318 |
| 1990 | 58,000 | — | 2,750 | 6,100 | — | 67,350 |
| 1989 | 37,000 | 66,000 | 500 | — | 5,000 | 115,500 |
| 1988 | 37,000 | 66,000 | — | — | — | 104,750 |
| 1987 | — | — | — | — | — | 1,000 |
▎ 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.