Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HYCROFT MINE
54980 JUNGO ROAD, WINNEMUCCA, NV, 89445
Parent company: HYCROFT MINING CORP
Carcinogen
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 | Mercury compounds | Ammonia | Cyanide compounds | Hydrogen cyanide | Total (lbs) |
| 2022 | — | 3 | — | — | — | 393 |
| 2021 | — | 92,328 | — | — | — | 93,064 |
| 2020 | — | 88,582 | — | — | — | 89,535 |
| 2019 | 22,061 | — | — | 860 | — | 31,689 |
| 2017 | — | 4 | — | 230 | — | 347 |
| 2016 | — | 7 | — | 19,000 | — | 19,280 |
| 2015 | 125,273 | 49,882 | — | 18,000 | — | 194,047 |
| 2014 | 2,798,541 | 1,107,251 | 68,035 | — | 51,000 | 4,028,012 |
| 2013 | 1,696,214 | 670,333 | — | 19,000 | — | 2,388,478 |
| 2012 | 1,034,391 | 390,023 | — | 11,964 | — | 1,436,431 |
| 2011 | 770,594 | 305,023 | — | 11,000 | — | 1,086,620 |
| 2010 | 768,895 | 304,245 | — | 13,150 | — | 1,086,290 |
| 2009 | 720,255 | 250,376 | — | 7,364 | — | 977,995 |
| 2008 | 385,547 | 134,023 | — | 19,000 | — | 538,570 |
| 2000 | — | — | 127,614 | — | — | 127,614 |
| 1999 | — | — | 412,670 | — | — | 412,670 |
| 1998 | — | — | 128,500 | — | 31,900 | 160,701 |
▎ 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.