Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
REEDHYCALOG L.P. HOUSTON ROLLER CONE
6501 NAVIGATION BLVD, HOUSTON, TX, 77011
Parent company: GRANT PRIDECO
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 | n-Hexane | 1,1,1-Trichloroethane | Methanol | Copper | Cobalt | Total (lbs) |
| 2007 | — | — | — | — | 2 | 2 |
| 2006 | — | — | — | 8 | 1 | 9 |
| 2005 | — | — | — | — | 1 | 2 |
| 2004 | — | — | — | — | 2 | 3 |
| 2001 | — | — | — | 3 | — | 3 |
| 2000 | — | — | — | 1 | — | 1 |
| 1999 | 2,929 | — | 200 | 2 | — | 3,131 |
| 1998 | 12,898 | — | 296 | 7 | — | 13,201 |
| 1997 | 31,378 | — | 337 | 5 | — | 31,720 |
| 1996 | 21,091 | — | 322 | 14 | — | 21,427 |
| 1995 | 42,700 | 5,848 | 322 | — | — | 48,870 |
| 1994 | — | — | 308 | 14 | — | 322 |
| 1993 | — | 6,300 | 308 | 250 | — | 6,858 |
| 1992 | — | 6,900 | 308 | — | — | 7,208 |
| 1991 | — | 750 | 308 | — | — | 1,058 |
| 1990 | — | 3,700 | — | — | — | 3,700 |
| 1989 | — | 39,300 | — | — | — | 39,300 |
| 1988 | — | 45,000 | — | — | — | 45,000 |
▎ 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.