Conservation in Long-Range Planning
Santa Rosa is committed to integrating water conservation into future supply and demand solutions for both the water system and the wastewater treatment/reuse system. By reducing the demand of current water customers and assuring that all new system uses are efficient, the amount of water Santa Rosa will need through the purview of the current General Plan has been reduced by 15%. In the long-range wastewater planning process, reduction of flow from current wastewater customers and assurance of efficiency from all new connections is a crucial component of the Incremental Recycled Water Program (IRWP).
Conservation in Water Supply Planning
Santa Rosa receives all of its urban water supply from three sources: the Sonoma County Water Agency (SCWA) and the City's Farmers Lane Wells, which supply all potable uses, and most irrigation uses; and the Santa Rosa Subregional Water Reuse System which supplies some irrigation uses.
Santa Rosa has been implementing a water conservation program since the 1976-77 drought. In 1998, the City became a signatory of the California Urban Water Conservation Council. As a signatory, the City is committed to and has fully implemented the Best Management Practices (BMPs) regarding water conservation. Through 2007, Santa Rosa has saved a total of 26,905 acre-feet per year of water due to implementation of the BMPs.
Future water conservation efforts will focus on sustaining the existing water conservation savings as well as achieving additional savings from new and emerging technologies.
Conservation in Wastewater Flow Projections
Santa Rosa owns and operates the Sub-regional Wastewater Treatment and Reclamation system, which treats and disposes of effluent from the cities of Santa Rosa, Rohnert Park, Cotati and Sebastopol as well as the South Park Sanitation District. The service area has an estimated population of 220,000, and the 2004 average dry weather flow was 16.5 million gallons per day (MGD).
In 2004, Santa Rosa completed the Final Recycled Water Master Plan and Environmental Impact Report for the Incremental Recycled Water Program (IRWP). The primary objective of the IRWP is to provide wastewater treatment, recycling, and disposal for the Santa Rosa Subregional Reclamation System to accommodate projected growth as indicated in the adopted general plans of each Subregional System member effective as of July 2002. Water conservation is an essential program element of the Final Recycled Water Master Plan. As of 2000, partners in the subregional system had implemented conservation measures to reduce wastewater flow by 488 million gallons per year (1.33 million gallons per day). By 2020, a total of 300 million gallons of additional water savings is expected through the implementation of water conservation programs by each of the subregional partners.