Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
M-I DRILLING FLUIDS CO BATTLE MOUNTAIN
W OF BATTLE MOUNTAIN ON HWY 40, BATTLE MOUNTAIN, NV, 89820
Parent company: M-I DRILLING FLUIDS LLC
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 | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | Total (lbs) | ||||
| 1992 | 3,050 | 3,050 | ||||
| 1991 | 3,150 | 3,150 | ||||
| 1990 | 1,250 | 1,250 | ||||
| 1989 | 750 | 750 | ||||
| 1988 | 4,276 | 4,276 | ||||
▎ 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.