Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
METAL PREP
501 N GREENWOOD ST, HOUSTON, TX, 77011
Parent company: NCI GROUP 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 | Certain glycol ethers | Mixture | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Total (lbs) | ||
| 2008 | — | — | 1 | 1 | ||
| 2007 | — | — | 1 | 1 | ||
| 2006 | 25,695 | — | — | 25,695 | ||
| 2005 | 20,441 | — | — | 20,441 | ||
| 2004 | 22,944 | — | — | 22,944 | ||
| 2002 | 24,593 | — | — | 24,593 | ||
| 2001 | 24,735 | — | — | 24,735 | ||
| 2000 | 30,199 | — | — | 30,199 | ||
| 1999 | 30,423 | — | — | 30,423 | ||
| 1998 | 32,876 | — | — | 32,876 | ||
| 1997 | 40,640 | — | — | 40,640 | ||
| 1996 | 43,709 | — | — | 43,709 | ||
| 1995 | 42,035 | — | — | 42,035 | ||
| 1994 | 60,396 | — | — | 60,396 | ||
| 1993 | 54,500 | — | — | 54,500 | ||
| 1992 | 42,600 | — | — | 42,600 | ||
| 1991 | 36,000 | — | — | 36,000 | ||
| 1990 | — | 32,893 | — | 32,893 | ||
▎ 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.