Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ELKEM CARBON KEOKUK
365 CARBIDE LN, KEOKUK, IA, 526326003
Parent company: ELKEM METALS INC
Carcinogen
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 | Naphthalene | Phenanthrene | Polycyclic aromatic compounds | Anthracene | Total (lbs) | |
| 2006 | 281 | 96 | 27 | — | 404 | |
| 2005 | 964 | 330 | 93 | — | 1,387 | |
| 2004 | 927 | 317 | 93 | — | 1,337 | |
| 2003 | — | 253 | 74 | — | 327 | |
| 2002 | — | 310 | 92 | — | 402 | |
| 2001 | — | 250 | 124 | — | 374 | |
| 2000 | — | 250 | 330 | — | 580 | |
| 1990 | — | — | — | 10 | 10 | |
| 1988 | — | — | — | 750 | 750 | |
▎ 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.