Waste Management – Wisconsin

A phytoremediation project outside Milwaukee at a cleaning and storage facility for Waste Management trucks.

Offshoots, Inc, was involved in a large phytoremediation project in Wisconsin at a cleaning and storage facility for Waste Management trucks outside Milwaukee. Water from cleaning the trucks was running off of the 8 acres of pavement, leaching into the local environment and ending up in Lake Michigan. Offshoots, Inc, worked with Waste Management to clean up the wastewater stream, designing a planted system so the runoff moves through a series of phytoremediation and rhizofiltration treatment trains.

Offshoots, Inc, designed approximately 12 phytotechnology mechanisms to treat the water before its eventual release into the water table. The contaminated water first moves through a degradation bog of cottonwood trees, followed by tree degradation buffers, herbaceous filters, vegetation, tile drains, bioswales, degradation willow plantings, and finishing with a constructed wetland. The whole project is surrounded by a Wisconsin native prairie pollinator meadow: a low maintenance, low water-use grassland of native plantings chosen to support local pollinators year-round.