Palo Alto: Milestone reached on construction of water-cleaning levee
Construction is complete on the first experimental levee along the San Francisco Bay shoreline that will clean treated wastewater and discharge it into the Bay. Now, all that’s needed is for the levee to be plugged in to the source of treated water. On Wednesday, officials invited press to visit the Palo Alto Horizontal Levee Pilot Project, which sits between the Regional Water Quality Control Plan and the upland marshes of the Baylands in the lower south of San Francisco Bay. What’s experimental is the way the levee is engineered. The top layer is a thick, loamy clay soil covered in native plants. Treated effluent, or cleaned wastewater from the treatment plant, will flow from beneath the surface in a dense layer of gravel and sand.
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