Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HI-SHEAR CORP
2600 SKYPARK DR, TORRANCE, CA, 90505
Parent company: NA
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 | 1,1,1-Trichloroethane | Methyl ethyl ketone | Nitric acid | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Toluene | Total (lbs) |
| 2020 | — | — | 55 | 52 | — | 117 |
| 2019 | — | — | 69 | 107 | — | 186 |
| 2018 | — | — | 57 | 104 | — | 171 |
| 2017 | — | — | 64 | 102 | — | 176 |
| 2016 | — | — | 63 | 98 | — | 171 |
| 2015 | — | — | 230 | 248 | — | 488 |
| 2014 | — | — | 242 | 461 | — | 716 |
| 2013 | — | — | 230 | 306 | — | 546 |
| 2012 | — | — | 218 | 399 | — | 627 |
| 2011 | — | — | 206 | 407 | — | 623 |
| 2010 | — | — | 194 | 600 | — | 804 |
| 2009 | — | — | 183 | 336 | — | 529 |
| 2008 | — | — | 171 | 395 | — | 576 |
| 2007 | — | — | 10 | 161 | — | 181 |
| 2006 | — | — | 10 | 10 | — | 30 |
| 2005 | — | — | 10 | 10 | — | 30 |
| 2004 | — | — | 10 | 10 | — | 30 |
| 2003 | — | 669 | 10 | 40 | — | 729 |
| 2002 | — | 615 | 10 | 5 | — | 634 |
| 2001 | — | 1,103 | 10 | — | — | 1,117 |
| 2000 | — | 481 | 10 | 5 | — | 501 |
| 1999 | — | 918 | 255 | 5 | — | 1,178 |
| 1998 | — | 1,220 | 255 | 5 | — | 1,490 |
| 1997 | — | 2,783 | 255 | 5 | 842 | 3,890 |
| 1996 | — | 1,334 | 255 | 5 | — | 1,599 |
| 1995 | — | 1,343 | 233 | 5 | — | 1,694 |
| 1994 | — | 2,591 | 369 | — | — | 3,263 |
| 1993 | — | 8,206 | 230 | — | — | 8,573 |
| 1992 | — | 5,155 | — | — | — | 5,155 |
| 1991 | 184,790 | 29,717 | 5 | — | — | 214,517 |
| 1990 | 283,330 | 29,650 | — | — | — | 312,980 |
| 1989 | 431,000 | 54,100 | 250 | — | — | 485,850 |
| 1988 | 328,000 | 44,000 | 250 | — | — | 373,000 |
▎ 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.