Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
6455 N THORNYDALE RD, TUCSON, AZ, 85741
Parent company: BERKSHIRE HATHAWAY INC
Reported on-site TRI releases in pounds, grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases across all available years.
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| Year | Cobalt | Chromium | Nickel | Total |
|---|---|---|---|---|
| 2024 | 1 | 13 | 8 | 22 |
| 2023 | — | 9 | 5 | 14 |
| 2022 | 2 | 6 | 6 | 14 |
| 2021 | 48 | 56 | 53 | 157 |
| 2020 | 54 | 62 | 50 | 166 |
| 2019 | 56 | 64 | 51 | 171 |
| 2018 | 40 | 46 | 37 | 123 |
| 2017 | 39 | 45 | 36 | 120 |
| 2016 | 11 | 17 | 15 | 43 |
| 2015 | 58 | 66 | 52 | 176 |
| 2014 | 59 | 67 | 53 | 179 |
| 2013 | 50 | 55 | 42 | 147 |
| 2012 | 32 | 36 | 28 | 96 |
| 2011 | 55 | 60 | 46 | 161 |
| 2010 | 46 | 51 | 40 | 137 |
| 2009 | 71 | 50 | 16 | 137 |
| 2008 | 61 | 47 | 18 | 127 |
| 2007 | 70 | 80 | 61 | 211 |
| 2006 | 99 | 108 | 87 | 294 |
| 2005 | 500 | 500 | 500 | 1,500 |
| 2004 | 500 | 500 | 500 | 1,500 |
| 2003 | 500 | 500 | 500 | 1,500 |
| 2002 | 750 | 750 | 750 | 2,250 |
| 2001 | 750 | 750 | 750 | 2,250 |
| 2000 | 505 | 750 | 750 | 2,005 |
| 1999 | 1,005 | 750 | 750 | 2,505 |
| 1998 | 1,250 | 750 | 750 | 2,750 |
| 1997 | 1,250 | 750 | 750 | 2,750 |
| 1996 | 750 | 750 | 750 | 2,250 |
| 1995 | 255 | 255 | 255 | 765 |
| 1994 | 255 | 255 | 255 | 765 |
| 1993 | 255 | 255 | 255 | 765 |
| 1992 | 255 | 255 | 255 | 765 |
| 1991 | 255 | 255 | 255 | 765 |
| 1990 | 10 | 7 | 2 | 19 |