Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
UNITED STATES DRILL HEAD CO
5298 RIVER RD, CINCINNATI, OH, 45233
Parent company: NA
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 | Copper | Total (lbs) | ||||
| 2005 | 99 | 99 | ||||
| 2004 | 101 | 101 | ||||
| 2003 | 143 | 143 | ||||
| 2002 | 143 | 143 | ||||
| 2001 | 308 | 308 | ||||
| 2000 | 608 | 608 | ||||
| 1999 | 390 | 390 | ||||
| 1998 | 449 | 449 | ||||
| 1997 | 419 | 419 | ||||
| 1996 | 406 | 406 | ||||
| 1995 | 463 | 463 | ||||
| 1994 | 526 | 526 | ||||
| 1993 | 404 | 404 | ||||
| 1992 | 414 | 414 | ||||
| 1991 | 524 | 524 | ||||
| 1990 | 500 | 500 | ||||
| 1989 | 500 | 500 | ||||
▎ 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.