Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NOV MISSION PRODUCTS SAN ANGELO
6738 HWY 87 N, SAN ANGELO, TX, 76901
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 | Styrene | Xylene (mixed isomers) | Manganese | Chromium | Cobalt | Total (lbs) |
| 2015 | 809 | — | — | — | — | 809 |
| 2014 | 3,616 | — | — | — | — | 3,616 |
| 2013 | 4,700 | — | — | — | — | 4,700 |
| 2012 | 8,480 | 200 | — | — | — | 8,680 |
| 2011 | 4,880 | — | — | — | — | 4,880 |
| 2010 | 4,899 | 1,834 | — | — | — | 6,733 |
| 2009 | 2,278 | — | — | — | — | 2,278 |
| 2008 | 6,416 | 17,925 | — | — | — | 24,341 |
| 2007 | 99,300 | — | — | — | — | 99,300 |
| 2006 | 104,927 | 74,940 | 98 | 0 | 0 | 179,966 |
| 2005 | 89,237 | 38,534 | — | — | — | 127,771 |
| 2004 | 84,326 | 29,350 | — | — | — | 113,676 |
| 2003 | 32,884 | — | — | — | — | 32,884 |
| 2002 | 32,592 | — | — | — | — | 32,592 |
| 2001 | 13,276 | — | — | — | — | 13,276 |
▎ 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.