Grey water
Grey water movements and courses in the Southern California area: The group Greywateraction has an upcoming November conference. I will be attending this. http://greywateraction.org/workshop/2012/11/15/california-greywater-conference Some news of San Diego movements towards greywater use: http://www.nctimes.com/news/local/san-marcos/environment-group-seeks-to-harvest-low-hanging-fruit-for-water/article_9f8f82b4-1d8d-5ae7-be7e-066fad595623.html The Sky Mountain Institute is an active S. Cal group promoting grey water use: http://www.skymountain.org/pdf/Graywater_Harvesting_2012_Flyer.pdf There is also this one at the Solar Living Institute: http://www.solarliving.org/courses/sustainable-living/601/wa-101-install-a-greywater-system/