Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
ASARCO INC LEADVILLE UNIT BLACK CLOUD MINE
748 COUNTY RD 2A, LEADVILLE, CO, 80461
Parent company: ASARCO INC
Carcinogen
PBT
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Zinc compounds | Lead compounds | Copper compounds | Cadmium compounds | Cyanide compounds | Total |
|---|---|---|---|---|---|---|
| 1999 | 132,100 | 98,632 | 9,311 | — | — | 240,044 |
| 1998 | 5,620,814 | 798,676 | 159,802 | 14,783 | 2,009 | 6,596,087 |