Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
WESTMORELAND SAN JUAN MINING LLC - SAN JUAN MINE
16 MILES WEST OF FARMINGTON CR 6800, WATERFLOW, NM, 87421
Parent company: WESTMORELAND MINING LLC
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 | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | Manganese compounds | Vanadium compounds | Barium | Copper compounds | Total (lbs) |
| 2024 | — | 15,017 | — | — | — | 37,837 |
| 2022 | 336,956 | 84,874 | 33,254 | — | 23,658 | 559,415 |
| 2021 | 496,756 | 123,243 | 48,410 | — | 34,757 | 929,546 |
| 2020 | 612,885 | 150,919 | 60,290 | — | 42,990 | 1,017,277 |
| 2019 | — | — | 66,002 | — | — | 1,127,231 |
| 2018 | — | — | 59,638 | — | — | 981,517 |
| 2017 | 1,600,000 | 390,000 | 160,000 | — | 110,000 | 2,662,146 |
| 2016 | 1,600,000 | 390,000 | 160,000 | — | 110,000 | 2,661,115 |
| 2015 | 1,600,000 | 370,000 | 150,000 | — | 110,000 | 2,611,206 |
| 2014 | 1,900,000 | 440,000 | 180,000 | — | 140,000 | 3,152,648 |
| 2013 | 2,000,000 | 430,000 | 180,000 | — | 140,000 | 3,210,470 |
| 2012 | 1,900,000 | 470,000 | 190,000 | — | 140,000 | 3,181,075 |
| 2011 | 2,100,001 | 490,001 | 200,000 | — | 150,000 | 3,462,560 |
| 2010 | 2,077,292 | 183,820 | 187,483 | — | 136,719 | 3,050,661 |
| 2009 | 2,400,074 | 550,014 | 220,002 | — | 170,040 | 3,838,442 |
| 2008 | 2,112,319 | 512,056 | 209,907 | — | 145,342 | 3,469,524 |
| 2007 | 2,500,000 | 470,250 | 190,000 | — | 140,000 | 3,746,490 |
| 2006 | 2,600,000 | 480,100 | 190,000 | — | 150,000 | 3,880,100 |
| 2005 | 2,589,514 | 492,517 | 89,339 | — | 24,794 | 3,354,200 |
| 2004 | 2,885,522 | 494,604 | 81,625 | — | 25,639 | 3,661,868 |
| 2003 | 2,212,231 | 403,255 | 75,147 | — | 18,205 | 2,847,911 |
| 2002 | 1,713,651 | 297,475 | 65,933 | — | 34,989 | 2,289,647 |
| 2001 | 1,946,688 | 198,977 | — | — | 42,587 | 2,451,869 |
| 2000 | — | — | — | 2,138,189 | — | 2,646,699 |
| 1999 | 1,507,675 | 206,672 | — | — | 42,907 | 1,986,334 |
| 1998 | 2,100,000 | 320,000 | — | — | 190,000 | 3,113,000 |
▎ 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.