City of Antioch Completes UV Water-Recirculation Plant and Solar Shade Sails at Prewett Family Park Spray Plaza

Parks and water-conservation engineers with the City of Antioch Parks and Recreation Department completed a closed-loop ultraviolet water-recirculation filtration plant, non-slip elastomeric deck resurfacing, and cantilevered solar shade sails on Sunday afternoon at the interactive spray play plaza inside Prewett Family Park and the Antioch Water Park at 4701 Lone Tree Way in Antioch. Serving more than 95,000 East Contra Costa children and families from spring through warm October weekends, the zero-depth spray ground is a centerpiece of the 100-acre Lone Tree Way civic and recreation complex.

Previously, a portion of the spray feature nozzles operated on a single-pass potable water drain line during peak summer afternoons. Under the autumn water-efficiency retrofit, mechanical contractors installed a 4,500-gallon subterranean fiberglass capture tank, high-rate multimedia sand filters, and a dual-stage medium-pressure ultraviolet (UV) and ozone sanitation loop that recycles 96 percent of spray water at swimming-pool clarity, conserving an estimated 1.4 million gallons of municipal drinking water each year.

Across the 5,200-square-foot splash pad, crews applied a cushioned, barefoot-friendly porous rubberized safety surface in cool blue and terracotta tones. Structural installers also erected six hurricane-rated tensioned HDPE shade sails over the perimeter parent seating alcoves, topped by a 14-kilowatt solar awning on the filter building roof that powers the variable-frequency recirculation pumps.

The $460,000 water-park conservation project was approved by the Antioch City Council using a California Department of Water Resources Urban Community Drought Relief grant and park maintenance reserves. Families can check seasonal facility schedules on the City of Antioch Recreation & Water Park Portal.