Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
M-I DRILLING FLUIDS COMPANY BROWNSVILLE
S SIDE RD PORT OF BROWNSVILLE, BROWNSVILLE, TX, 78520
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) | ||||
| 1991 | 1,500 | 1,500 | ||||
| 1990 | 2,442 | 2,442 | ||||
| 1989 | 1,600 | 1,600 | ||||
| 1988 | 1,617 | 1,617 | ||||
| 1987 | 6,534 | 6,534 | ||||
▎ 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.