Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
WELL STIMULATION
20322 HUFSMITH KOHRVILLE RD, TOMBALL, TX, 77375
Parent company: NRG MANUFACTURING
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 | Ethylene glycol | n-Hexane | Naphthalene | Manganese | Zinc compounds | Total (lbs) |
| 2019 | 8,717 | 763 | 759 | 29 | — | 10,271 |
| 2018 | 11,622 | 1,017 | 1,013 | 40 | 33 | 13,734 |
| 2017 | 2,049 | — | — | 5 | — | 2,057 |
▎ 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.