Reduce, Reuse, Revitalize: Upper Villa Park Volume Reduction and Stormwater Reuse Project

Capitol Region Watershed District (CRWD), in partnership with the City of Roseville, will construct a volume reduction/capture-reuse irrigation facility below the Upper Villa Park Softball field in the City of Roseville. This project will protect Lake McCarrons and the Villa Park Wetland System (VPWS) by reducing runoff volumes and the pollutants associated with urban stormwater such as Total Phosphorus (TP), Total Suspended Solids (TSS), heavy metals, and petroleum products among others. Lake McCarrons is currently unimpaired, though excess phosphorus loading threatens water quality, aquatic health, and recreational use. The VPWS drains 753 acres to the northwest of Lake McCarrons. Despite previous phosphorus load reduction efforts, CRWD monitoring data indicates VPWS continues to export phosphorus to Lake McCarrons. The Villa Park Wetland Management Plan recommendations a two phase approach for reducing phosphorus loading from the Villa Park subwatershed. The first recommended action to dredge the wetland cells was completed by CRWD in September 2013. This project will implement the next phase, to reduce volume and pollutant loading to the wetland through Best Management Practices (BMPs), such as bio-retention basins or infiltration systems.

In addition to volume reduction through infiltration, the system will be designed to store and reuse a portion of the runoff to irrigate the softball field. Up to 1.3 million gallons of potable water use will be eliminated by providing a storage tank to satisfy the estimated 4 acre-feet irrigation demand over the growing season. Once the reuse tank is full, excess water will then be directed to the infiltration area, eliminating the need to install real time controls to draw the tank down and provide storage prior to a rain event.