• Main San Gabriel Basin Watermaster
    www.watermaster.org

• Foothill Water Coalition

           www.foothillwc.org

• Chino Basin Watermaster

           www.cbwm.org

• Association of Groundwater Agencies
    www.agwa.org

• San Gabriel Valley Water Association
    www.sgvwa.org

• Foothill Municipal Water District
    www.fmwd.com

• Inland Empire Utilities Agency   

          www.ieua.org

• Metropolitan Water District
    www.mwdh2o.com

• San Gabriel Valley Municipal Water District
    www.sgvmwd.org

• Three Valleys Municipal Water District

          www.threevalleys.com

• Upper San Gabriel Valley Municipal Water District
    www.usgvmwd.org

• Greater Los Angeles County Region  

              (Integrated Regional Water Management Plan- IRWMP)

           www.lawaterplan.org