For an industry dedicated to digging through dirt and dredging water, it’s about as clean as you can get.
Crushing, sorting and washing stone is the full extent of aggregate processing, and it only uses water – not one single chemical is used in the processing of stone, sand and gravel. And the water that is used is recycled in a closed loop and used again and again.
It’s also important to note that pits and quarries don’t have an adverse effect on groundwater. In fact, in some cases they’re actually beneficial because the rainfall and snowmelt they capture increase cold groundwater flow for fish habitats.
On top of all that, our industry is strictly regulated by the Aggregate Resources Act (ARA), among others.