Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
CYANCO CO LLC
5505 CYANCO DR., WINNEMUCCA, NV, 89445
Parent company: CYANCO CORP
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 | Ammonia | Hydrogen cyanide | Cyanide compounds | Nitric acid | Total (lbs) | |
| 2024 | 9,224 | 1,171 | — | — | 10,394 | |
| 2023 | 11,507 | 169 | — | — | 11,676 | |
| 2022 | 816 | 245 | — | — | 1,061 | |
| 2021 | 212 | 3,504 | 50 | — | 3,766 | |
| 2020 | 102 | 2,206 | 750 | — | 3,058 | |
| 2019 | 1,662 | 3,300 | — | 10 | 4,972 | |
| 2018 | 255 | 162 | — | 10 | 428 | |
| 2017 | 500 | 250 | — | — | 750 | |
| 2016 | 255 | 500 | — | — | 755 | |
| 2015 | 255 | 1,177 | — | — | 1,432 | |
| 2014 | 255 | 1,190 | — | — | 1,445 | |
| 2013 | 145 | 341 | — | — | 486 | |
| 2012 | 375 | 3,725 | — | — | 4,100 | |
| 2011 | 374 | — | 910 | — | 1,283 | |
| 2010 | 356 | — | 679 | — | 1,035 | |
| 2009 | 354 | — | 476 | — | 830 | |
| 2008 | 325 | — | 62 | — | 387 | |
| 2007 | 325 | — | 63 | — | 388 | |
| 2006 | 329 | — | 255 | — | 584 | |
| 2005 | 323 | — | 5 | — | 328 | |
| 2004 | 320 | 7 | — | — | 327 | |
| 2003 | 314 | 706 | — | — | 1,020 | |
| 2002 | 2,317 | 40 | — | — | 2,357 | |
| 2001 | 306 | 27 | — | — | 333 | |
| 2000 | 299 | 30 | — | — | 329 | |
| 1999 | 289 | 33 | — | — | 322 | |
| 1998 | 307 | 25 | — | — | 332 | |
| 1997 | 307 | 24 | — | — | 331 | |
| 1996 | 252 | 13 | — | — | 265 | |
| 1995 | 247 | 8 | — | — | 255 | |
| 1994 | 2,048 | 10 | — | — | 2,058 | |
| 1993 | 2,091 | 10 | — | — | 2,101 | |
| 1992 | 1,955 | — | 250 | — | 2,205 | |
| 1991 | 998 | — | 23 | — | 1,021 | |
| 1990 | 432 | — | 11 | — | 443 | |
▎ 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.