Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
HELENA SAND & GRAVEL
2750 CANYON FERRY RD, HELENA, MT, 59602
Parent company: CRH AMERICAS INC
PBT
— EPA classifications across all reporting years
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 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Lead compounds | Total |
|---|---|---|---|
| 2018 | 611 | 37 | 648 |
| 2017 | 812 | 32 | 844 |
| 2016 | 1,560 | 58 | 1,618 |
| 2015 | 1,344 | 55 | 1,399 |