Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
2800 N FRAZIER, CONROE, TX, 77303
Parent company: NATIONAL OILWELL VARCO LP
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
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 | Toluene | Methyl ethyl ketone | Xylene (mixed isomers) | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | Ethylbenzene | Total (lbs) |
| 2024 | — | — | — | — | — | 46 |
| 2023 | — | — | — | — | — | 6 |
| 2001 | 10,855 | 10,555 | 12,215 | 5,220 | 3,205 | 42,050 |
| 2000 | 8,605 | 9,282 | 6,244 | 7,123 | — | 31,254 |
| 1998 | 4,700 | 4,300 | — | — | — | 9,000 |
▎ 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.