Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
CHINOOK GROUP INC
41420 FOREST BLVD AT CITY RD 415, NORTH BRANCH, MN, 55056
Parent company: CHINOOK GROUP
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 | Zinc compounds | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Copper compounds | Total |
|---|---|---|---|---|
| 1992 | — | 58 | 155 | 213 |
| 1991 | 3,014 | 148 | 30 | 3,192 |
| 1990 | 500 | 500 | 500 | 1,500 |