Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MIDWESTERN PIPELINE SERVICES
1025 KAISER RD, NAPA, CA, 94558
Parent company: NA
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 | Xylene (mixed isomers) | Acetone | Certain glycol ethers | Total (lbs) | ||
| 2002 | 11,191 | — | — | 11,191 | ||
| 2001 | 3,636 | — | — | 3,636 | ||
| 1999 | 9,435 | — | — | 9,435 | ||
| 1998 | 3,736 | — | — | 3,736 | ||
| 1993 | 3,530 | — | — | 3,530 | ||
| 1992 | 10,282 | — | 3,412 | 13,694 | ||
| 1991 | 41,915 | 26,961 | 13,267 | 82,143 | ||
| 1990 | 38,470 | 18,620 | 11,850 | 68,940 | ||
| 1989 | 24,200 | — | — | 24,200 | ||
▎ 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.