Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HARTWELL RANCHO CUCAMONGA
9810 6TH ST, RANCHO CUCAMONGA, CA, 91730
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 | 1,1,1-Trichloroethane | Total (lbs) | ||||
| 1994 | 779 | 779 | ||||
| 1993 | 2,200 | 2,200 | ||||
| 1992 | 6,900 | 6,900 | ||||
| 1991 | 11,000 | 11,000 | ||||
| 1990 | 750 | 750 | ||||
| 1989 | 750 | 750 | ||||
▎ 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.