Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
AUSTIN POWDER MINING LLC
2178 HILITE RD, GILLETTE, WY, 82718
Parent company: AUSTIN POWDER HOLDINGS CO
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 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Ammonia | Total (lbs) | |||
| 2007 | 38 | — | 38 | |||
| 2006 | 445 | — | 445 | |||
| 2005 | 330 | — | 330 | |||
| 2003 | 750 | 250 | 1,000 | |||
| 2002 | 321 | 14 | 335 | |||
| 2001 | 322 | 14 | 336 | |||
| 2000 | 346 | 10 | 356 | |||
| 1999 | 322 | 9 | 331 | |||
| 1998 | 322 | 9 | 331 | |||
| 1997 | 322 | 9 | 331 | |||
| 1996 | 388 | 11 | 399 | |||
▎ 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.