Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HUTCHINSON TECHNOLOGY INC
2435 ALPINE RD, EAU CLAIRE, WI, 54703
Parent company: TDK USA CORP
Carcinogen
— 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 | N-Methyl-2-pyrrolidone | Nitric acid | Hydrogen fluoride | Chlorine | Certain glycol ethers | Total (lbs) |
| 2023 | 984 | — | — | — | — | 990 |
| 2022 | 747 | — | — | — | — | 759 |
| 2021 | 393 | — | — | — | — | 409 |
| 2020 | 691 | — | — | — | — | 703 |
| 2019 | 1,513 | — | — | — | — | 1,528 |
| 2018 | 2,631 | — | — | — | — | 2,649 |
| 2017 | 7,599 | — | — | — | — | 7,613 |
| 2016 | 10,144 | — | — | — | — | 10,144 |
| 2015 | 2,657 | — | — | — | — | 2,660 |
| 2014 | 2,573 | — | — | — | — | 2,573 |
| 2013 | 2,742 | — | — | — | — | 2,742 |
| 2012 | 3,405 | — | — | — | — | 3,405 |
| 2011 | 1,989 | — | — | — | — | 1,989 |
| 2010 | 1,019 | — | — | — | — | 1,019 |
| 2009 | 639 | — | — | — | — | 639 |
| 2008 | 364 | — | — | 0 | — | 364 |
| 2007 | — | — | 276 | 3 | — | 279 |
| 2006 | — | — | — | 1 | — | 1 |
| 2000 | — | — | — | — | 65 | 65 |
| 1999 | — | 570 | — | — | 65 | 635 |
| 1998 | — | 570 | — | — | 65 | 635 |
| 1997 | — | 2,565 | — | 220 | 12 | 2,797 |
| 1996 | — | 1,500 | — | — | — | 1,500 |
▎ 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.