Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MINERAL RIDGE MINE
1 COYOTE RD, SILVERPEAK, NV, 89047
Parent company: SCORPIO GOLD (US) CORP
PBT
— 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 | Lead compounds | Cyanide compounds | Mercury compounds | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Total (lbs) | |
| 2019 | — | 1,500 | — | — | 1,500 | |
| 2018 | — | 1,400 | — | — | 1,400 | |
| 2017 | 16 | 2,200 | — | — | 2,216 | |
| 2016 | 120,132 | 1,500 | 135 | 400 | 122,167 | |
| 2015 | — | 1,200 | 713 | 960 | 2,873 | |
| 2014 | — | 1,400 | 587 | — | 1,987 | |
| 2013 | 43,943 | 1,700 | 451 | 470 | 46,564 | |
| 2012 | 38,633 | 610 | 403 | — | 39,646 | |
| 2011 | 18,950 | 550 | 252 | — | 19,752 | |
▎ 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.