Reports and Documents

Diablo Water District has partnered with Ironhouse to explore the feasibility of advanced purified water. In 2021, The District and Ironhouse completed a recycled water feasibility study to analyze alternatives to expand the use of Ironhouse’s high-quality recycled water use within the community. The study looked at different options for installing new purple pipes to deliver recycled water for landscape irrigation and considered options for using recycled water as a source for purified water that would exceed drinking water standards. Several considerations for each option were analyzed including volume of new water supply, offset of drinking water supply, constructability, and cost.

Recycled water from Ironhouse would be purified in a new advanced water treatment facility. The project could provide over two million gallons per day of a new water supply. The study recommended further evaluation of advanced purified water.

• Recycled Water Feasibility Study (pdf) 2/10/21