Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MARTIN MARIETTA COMPOSITES INC SPARTA FACILITY
114 INDUSTRIAL PARK DR, SPARTA, NC, 28675
Parent company: MARTIN MARIETTA MATERIALS 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 | Styrene | Copper compounds | Copper | Silver | Total (lbs) | |
| 2009 | 4,164 | — | — | — | 4,164 | |
| 2008 | 4,658 | — | — | — | 4,658 | |
| 2007 | 1,374 | — | — | — | 1,374 | |
| 2006 | 3,361 | — | — | — | 3,361 | |
| 2005 | 6,391 | — | — | — | 6,391 | |
| 2004 | 477 | — | — | — | 477 | |
| 2002 | — | 38 | — | — | 38 | |
| 2001 | — | 255 | — | — | 255 | |
| 2000 | — | 255 | — | — | 255 | |
| 1999 | — | 255 | — | — | 255 | |
| 1998 | — | — | 255 | 255 | 510 | |
| 1997 | — | — | 255 | 255 | 510 | |
| 1996 | — | — | 255 | — | 255 | |
▎ 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.