A  water storage tank was proposed near the southern end of Fountaingrove Lake; the city of Santa Rosa has approved this project to add to the municipal drinking water supply, subject to erosion control measures to protect Fountaingrove Lake from excessive siltation.
The city of Santa Rosa approved a water reservoir near the southern end of Fountaingrove Lake to enhance the municipal drinking water supply. This project is subject to erosion control measures designed to prevent excessive siltation in the lake.