Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ROGGEN PLANT
35409 WELD COUNTY ROAD 18, ROGGEN, CO, 80652
Parent company: PHILLIPS 66
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 | n-Hexane | Cyclohexane | Toluene | Benzene | Xylene (mixed isomers) | Total (lbs) |
| 2024 | 2,300 | 1,800 | 1,000 | 780 | 780 | 7,340 |
| 2023 | 2,110 | 2,900 | 900 | 1,215 | 700 | 8,382 |
| 2022 | 2,700 | 168 | 985 | 705 | 742 | 5,428 |
▎ 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.