Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
COLUMBIAN CHEMICALS CO
713 INDUSTRIAL RD, EL DORADO, AR, 71730
Parent company: PHELPS DODGE CORP
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 | Carbon disulfide | Carbonyl sulfide | Polycyclic aromatic compounds | Lead compounds | Benzo[g,h,i]perylene | Total (lbs) |
| 2001 | 22,000 | 5,100 | 7 | 27 | 6 | 27,148 |
| 2000 | 10,000 | 2,300 | 22 | — | 12 | 12,335 |
| 1999 | 520,000 | 120,000 | — | — | — | 640,000 |
| 1998 | 710,000 | 160,000 | — | — | — | 870,000 |
| 1997 | 670,000 | 160,000 | — | — | — | 830,000 |
| 1996 | 400,000 | 92,000 | — | — | — | 492,000 |
| 1995 | 43,000 | 97,000 | — | — | — | 140,000 |
| 1994 | 703,823 | 162,095 | — | — | — | 865,918 |
| 1993 | 589,679 | 139,780 | — | — | — | 729,459 |
| 1992 | 592,546 | 137,248 | — | — | — | 729,794 |
| 1991 | 548,831 | 121,875 | — | — | — | 670,706 |
| 1990 | 475,695 | 109,780 | — | — | — | 585,475 |
| 1989 | 515,906 | 118,445 | — | — | — | 634,351 |
| 1988 | — | 145,098 | — | — | — | 145,098 |
▎ 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.