Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
WELLS ENTERPRISES INC ENGINEERING CENTER
1 ROCKY RD SW, LE MARS, IA, 51031
Parent company: WELLS ENTERPRISES 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 | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Nickel compounds | Manganese compounds | Total (lbs) | ||
| 2008 | 5 | 5 | — | 10 | ||
| 2007 | 5 | 5 | — | 10 | ||
| 2006 | 5 | 5 | — | 10 | ||
| 2005 | 5 | 5 | — | 10 | ||
| 2004 | 5 | 5 | — | 10 | ||
| 2003 | 5 | 5 | — | 10 | ||
| 2002 | 250 | 250 | 250 | 750 | ||
| 2001 | 5 | 5 | — | 10 | ||
| 2000 | 5 | 5 | 5 | 15 | ||
| 1999 | 5 | 5 | — | 10 | ||
| 1998 | 5 | 5 | 5 | 15 | ||
▎ 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.