Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MARATHON OIL CO REFINERY
5000 W 86TH ST, INDIANAPOLIS, IN, 46268
Parent company: NA
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 | Aluminum oxide (fibrous forms) | Ethylene | Xylene (mixed isomers) | Toluene | Propylene | Total (lbs) |
| 1996 | — | — | — | — | — | 5 |
| 1994 | — | — | 134 | 228 | — | 638 |
| 1993 | — | 39,005 | 39,240 | 35,810 | 15,096 | 161,378 |
| 1992 | — | 38,005 | 24,220 | 21,710 | 15,059 | 121,143 |
| 1991 | — | 54,005 | 22,140 | 18,200 | 23,400 | 153,504 |
| 1990 | — | 57,000 | 11,000 | 11,200 | 21,000 | 131,190 |
| 1989 | — | 33,250 | 30,000 | 33,000 | 11,150 | 150,930 |
| 1988 | 144,250 | 4,750 | 39,400 | — | — | 216,520 |
| 1987 | 240,250 | — | — | — | 9,200 | 250,200 |
▎ 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.