Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
WOLFSPEED INC. (RTP)
3026 CORNWALLIS RD, RESEARCH TRIANGLE PARK, NC, 27709
Parent company: WOLFSPEED INC
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 | Acetone | N-Methyl-2-pyrrolidone | Methanol | Hydrogen fluoride | Ammonia | Total (lbs) |
| 2024 | — | 2,192 | — | 1,228 | — | 3,419 |
| 2023 | — | 2,427 | — | 2,371 | — | 4,798 |
| 2022 | — | 2,281 | — | — | — | 2,290 |
| 2021 | — | 2,512 | — | 3,324 | — | 5,836 |
| 2020 | — | 2,406 | — | — | — | 2,406 |
| 2019 | — | 2,248 | — | — | — | 2,248 |
| 2018 | — | 1,163 | — | — | — | 1,172 |
| 2017 | — | 1,546 | — | — | — | 1,555 |
| 2016 | — | 930 | — | — | — | 940 |
| 2015 | — | 1,102 | — | — | — | 1,102 |
| 2014 | — | 1,505 | — | — | — | 1,505 |
| 2013 | — | 668 | — | — | — | 668 |
| 2012 | — | 250 | 1,009 | — | — | 1,259 |
| 2011 | — | 250 | 1,505 | — | — | 1,755 |
| 2010 | — | 77 | 1,594 | — | — | 1,671 |
| 2009 | — | 33 | 1,602 | — | — | 1,635 |
| 2008 | — | 24 | 1,325 | — | — | 1,349 |
| 2007 | — | 10 | 1,022 | — | — | 1,032 |
| 2006 | — | 5 | — | — | — | 5 |
| 1997 | — | — | — | — | — | 575 |
| 1996 | — | 1,316 | — | 266 | — | 2,212 |
| 1995 | — | — | — | — | — | 86 |
| 1994 | — | — | — | — | — | 100 |
| 1993 | 21,557 | — | — | — | — | 21,557 |
| 1992 | 9,960 | — | — | — | — | 9,960 |
| 1991 | 10,280 | — | — | — | — | 10,280 |
| 1990 | 18,999 | — | — | — | — | 18,999 |
| 1989 | 18,050 | — | — | — | — | 18,050 |
| 1988 | — | — | — | — | 1,239 | 1,239 |
▎ 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.