Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
EKC TECHNOLOGY INC.
2520 BARRINGTON CT, HAYWARD, CA, 94545
Parent company: DUPONT DE NEMOURS INC
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 | Catechol | N-Methyl-2-pyrrolidone | 1,2,4-Trimethylbenzene | Phenol | Tetrachloroethylene | Total (lbs) |
| 2024 | 64 | 48 | — | — | — | 121 |
| 2023 | 95 | 53 | — | — | — | 157 |
| 2022 | 205 | 77 | — | — | — | 291 |
| 2021 | 281 | 83 | — | — | — | 380 |
| 2020 | 248 | 75 | — | — | — | 337 |
| 2019 | 206 | 58 | — | — | — | 279 |
| 2018 | 122 | 69 | — | — | — | 224 |
| 2017 | 252 | 77 | — | — | — | 344 |
| 2016 | 228 | 75 | — | — | — | 318 |
| 2015 | 245 | 75 | — | — | — | 336 |
| 2014 | 247 | 81 | — | — | — | 344 |
| 2013 | 222 | 80 | — | — | — | 316 |
| 2012 | 207 | 92 | — | — | — | 312 |
| 2011 | 231 | 112 | — | — | — | 364 |
| 2010 | 218 | 112 | — | — | — | 343 |
| 2009 | 190 | 85 | — | — | — | 291 |
| 2008 | 249 | 101 | — | — | — | 367 |
| 2007 | 243 | 113 | — | — | — | 374 |
| 2006 | 238 | 109 | — | — | — | 364 |
| 2005 | 205 | 103 | — | — | — | 325 |
| 2004 | 488 | 512 | — | — | — | 1,027 |
| 2003 | 529 | 649 | 58 | 1 | 63 | 1,307 |
| 2002 | 357 | 137 | 11 | 2 | 47 | 560 |
| 2001 | 239 | 519 | 50 | 2 | 53 | 888 |
| 2000 | 238 | 524 | 51 | 2 | 55 | 904 |
| 1999 | 238 | 432 | 46 | 5 | 72 | 838 |
| 1998 | 340 | 962 | 92 | 10 | 63 | 1,506 |
| 1997 | — | 140 | — | 4 | — | 209 |
| 1996 | 56 | 242 | 66 | 22 | 50 | 501 |
| 1995 | 34 | 23 | 315 | 16 | 70 | 589 |
| 1994 | 15 | — | — | 14 | 49 | 143 |
| 1993 | 13 | — | — | 12 | 42 | 102 |
| 1992 | — | — | — | 17 | 4 | 28 |
| 1991 | 3 | — | — | 20 | 28 | 161 |
| 1990 | — | — | — | 43 | — | 68 |
| 1989 | 250 | — | — | 250 | — | 750 |
| 1988 | — | — | — | 250 | — | 250 |
▎ 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.