Facility detail

SENECA GAS PROCESSING PLANT

26645 ZEP ROAD EAST, SUMMERFIELD, OH, 43788

Parent company: MARATHON PETROLEUM CORP

Year-over-year total releases

Reported on-site TRI releases in pounds, grouped by reporting year.

Top chemical totals

The 10 chemicals with the highest cumulative on-site releases 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.

Year n-Hexane Total
2024 9,054 9,054
2023 5,419 5,419
2022 16,106 16,106