Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PUBLIC SERVICE CO OF COLORADO VALMONT STATION
1800 N 63RD ST, BOULDER, CO, 80301
Parent company: XCEL ENERGY
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)) | Hydrogen fluoride | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Lead compounds | Manganese compounds | Total (lbs) |
| 2017 | 65,986 | — | — | 999 | — | 66,987 |
| 2016 | 289,136 | 1,400 | 6,100 | 3,879 | 19,224 | 319,756 |
| 2015 | 177,057 | 6,255 | 820 | 3,105 | — | 187,265 |
| 2014 | 105,781 | 5,688 | — | 1,531 | — | 113,023 |
| 2013 | 106,742 | 5,594 | — | 1,580 | — | 113,945 |
| 2012 | 57,033 | 5,431 | — | 718 | — | 63,210 |
| 2011 | 122,101 | 5,410 | — | 2,083 | — | 129,638 |
| 2010 | 138,826 | 5,894 | 753 | 2,555 | — | 148,066 |
| 2009 | 110,189 | 3,920 | 2,989 | 1,049 | — | 118,185 |
| 2008 | 221,276 | 5,750 | 2,149 | 4,126 | — | 233,347 |
| 2007 | 267,633 | 5,747 | 2,773 | 5,031 | — | 281,237 |
| 2006 | 230,298 | 4,800 | 3,500 | 4,278 | — | 242,927 |
| 2005 | 270,851 | 5,600 | 3,300 | 4,361 | — | 284,160 |
| 2004 | 270,641 | 4,900 | 3,900 | 4,431 | — | 283,905 |
| 2003 | 301,292 | 1,600 | — | 3,550 | — | 306,478 |
| 2002 | 290,853 | 61,000 | 13,000 | 5,134 | — | 370,025 |
| 2001 | 320,929 | 140,000 | 29,000 | 5,147 | — | 495,118 |
| 2000 | 361,006 | 140,000 | 29,000 | — | — | 530,054 |
| 1999 | 101,076 | 75,000 | — | — | — | 176,076 |
| 1998 | 240,903 | 135,000 | 27,000 | — | — | 402,903 |
▎ 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.