Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
W. R. GRACE & CO CONN
4750 BLAFFER ST, HOUSTON, TX, 77026
Parent company: W R GRACE & CO
Carcinogen
— 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 | Vanadium (except when contained in an alloy) | Molybdenum trioxide | Nickel And Nickel Compounds | Nickel compounds | Total (lbs) | |
| 2024 | 0 | 0 | 0 | — | 0 | |
| 2023 | 0 | 0 | — | 0 | 0 | |
| 2006 | 2 | — | — | — | 2 | |
| 2005 | 1 | — | — | — | 1 | |
| 2004 | 1 | — | — | — | 1 | |
| 2003 | 1 | — | — | — | 1 | |
▎ 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.