Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
SCHLUMBERGER TECHNOLOGY CORP
7030 ARDMORE, HOUSTON, TX, 77054
Parent company: SCHLUMBERGER HOLDINGS CORP
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Chromium | Copper | Propylene | Nickel | Total |
|---|---|---|---|---|---|
| 2003 | 5 | — | — | 4 | 9 |
| 2002 | 9 | — | — | 6 | 15 |
| 2001 | 25 | — | 68 | 6 | 99 |
| 2000 | 5 | — | — | 10 | 15 |
| 1999 | 417 | — | — | — | 417 |
| 1998 | 250 | — | — | 10 | 260 |
| 1996 | 500 | — | — | — | 500 |
| 1995 | 417 | — | — | — | 417 |
| 1994 | 415 | — | — | — | 415 |
| 1993 | 417 | — | — | — | 417 |
| 1992 | 418 | 56 | — | — | 474 |
| 1991 | 415 | 56 | — | — | 471 |
| 1990 | 417 | 56 | — | 5 | 478 |
| 1989 | 42 | 2 | — | — | 44 |
| 1988 | 5 | 2 | — | — | 7 |