Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NOV RIG SOLUTIONS PAMPA
11659 US HWY 60, PAMPA, TX, 79065
Parent company: NATIONAL OILWELL VARCO LP
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 | Manganese | Chromium | Aluminum oxide (fibrous forms) | Toluene | Nickel | Total (lbs) |
| 2014 | — | — | — | 16,572 | — | 26,225 |
| 2012 | — | — | — | 23,600 | — | 23,600 |
| 2011 | — | — | — | 23,803 | — | 23,803 |
| 2010 | — | — | — | 2,826 | — | 2,826 |
| 2009 | — | — | — | 5,808 | — | 5,808 |
| 2005 | — | — | — | 2,226 | — | 2,226 |
| 2004 | 70 | 47 | — | — | 39 | 156 |
| 2003 | 18 | 43 | — | — | 11 | 72 |
| 2002 | 927 | 272 | — | — | — | 1,199 |
| 2001 | 7,747 | 4,594 | — | — | 263 | 12,874 |
| 2000 | 38,287 | 48,097 | — | — | 6,935 | 93,319 |
| 1998 | 13,412 | 11,045 | — | — | — | 24,457 |
| 1997 | 19,882 | 16,126 | — | — | — | 36,008 |
| 1996 | 20,605 | 15,828 | — | — | — | 36,433 |
| 1995 | 16,867 | 12,268 | — | — | — | 29,135 |
| 1994 | 12,375 | 9,923 | — | — | 255 | 22,813 |
| 1993 | 13,036 | 9,590 | — | 10,283 | 255 | 33,419 |
| 1992 | 14,055 | 5,281 | — | — | 255 | 19,851 |
| 1991 | 23,741 | 13,830 | — | 7,994 | 255 | 45,830 |
| 1990 | 32,564 | 7,527 | — | — | 500 | 40,601 |
| 1989 | 23,975 | 5,541 | 40,693 | — | 500 | 71,459 |
| 1988 | — | 4,400 | 39,900 | — | 500 | 45,050 |
| 1987 | — | 2,250 | 63,000 | — | — | 65,500 |
▎ 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.