Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HOMESTAKE MINE
630 E SUMMIT ST, LEAD, SD, 57754
Parent company: HOMESTAKE MINING CO
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 | Arsenic compounds | Arsenic | Manganese compounds | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Copper compounds | Total (lbs) |
| 2004 | — | — | — | 132,200 | — | 134,656 |
| 2003 | 105,818 | — | — | 122,500 | 22,081 | 639,424 |
| 2002 | 85,716 | — | — | 257,600 | 19,716 | 915,859 |
| 2001 | 2,596,449 | — | — | 210,176 | — | 2,912,207 |
| 2000 | 3,040,692 | — | — | 221,400 | — | 3,332,374 |
| 1999 | 4,400,583 | — | — | 201,700 | — | 4,680,147 |
| 1998 | — | 9,900,619 | 6,169,836 | 206,344 | 359,460 | 16,700,173 |
▎ 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.