Lumber waste, hazelnut shells and oyster shells hold big promise

Read the full story in the Portland Business Journal.

A fresh investment in a Portland environmental startup will help confirm whether its mix of lumber waste, hazelnut shells and other materials effectively removes toxic metals from stormwater.

The Portland Development Commission and Oregon BEST are investing $136,000 so Sunmark Environmental can work with an Oregon State University research team to confirm its product, EarthLite Stormwater Filter Media, removes 80 percent to 100 percent of the toxic metals that leach off of metal roofs and from brake linings, brake fluid and other sources and reach the water system.

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