Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PROMEGA CORP
277 GRANADA DR, SAN LUIS OBISPO, CA, 93401
Parent company: PROMEGA 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 | Dichloromethane | Methanol | Toluene | Acetone | Acetonitrile | Total (lbs) |
| 2024 | 1,126 | — | — | — | — | 1,126 |
| 2023 | 923 | 400 | — | — | — | 1,323 |
| 2022 | 1,913 | 417 | — | — | — | 2,330 |
| 2021 | 1,481 | 373 | — | — | — | 1,854 |
| 2020 | 1,401 | 1,093 | — | — | 294 | 2,788 |
| 2019 | 1,389 | 427 | — | — | — | 1,816 |
| 2018 | 1,545 | 391 | — | — | — | 1,936 |
| 2017 | 1,658 | 509 | — | — | — | 2,166 |
| 2016 | 1,166 | 407 | — | — | — | 1,573 |
| 2015 | 1,774 | 455 | — | — | — | 2,229 |
| 2014 | 2,044 | 493 | — | — | — | 2,537 |
| 2013 | 1,455 | 353 | — | — | — | 1,808 |
| 2012 | 1,384 | 419 | — | — | — | 1,804 |
| 2011 | 1,241 | 316 | — | — | — | 1,557 |
| 2010 | 867 | 238 | — | — | — | 1,106 |
| 2009 | 1,233 | — | — | — | — | 1,233 |
| 2008 | 1,269 | — | — | — | — | 1,269 |
| 2007 | 1,196 | 268 | — | — | — | 1,464 |
| 2006 | 903 | — | — | — | — | 903 |
| 2005 | 498 | — | — | — | — | 498 |
| 2004 | 100 | 34 | — | — | — | 134 |
| 2003 | 56 | 94 | — | — | — | 150 |
| 2002 | 302 | 10 | — | — | — | 312 |
| 2001 | 555 | 50 | — | — | — | 605 |
| 2000 | 90 | 27 | — | — | 57 | 174 |
| 1999 | 55 | 50 | 5 | — | — | 110 |
| 1998 | 100 | 220 | 6 | — | — | 326 |
| 1997 | 250 | 98 | — | — | — | 348 |
| 1996 | 276 | 690 | 241 | — | — | 1,207 |
| 1995 | 1,000 | 255 | 1,000 | — | — | 2,255 |
| 1994 | 1,414 | 342 | 14 | — | — | 1,770 |
| 1993 | 1,427 | — | — | — | — | 1,427 |
| 1991 | 1,560 | — | — | — | — | 1,560 |
| 1990 | 1,600 | — | — | — | — | 1,600 |
| 1989 | — | 500 | — | 500 | — | 1,000 |
▎ 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.