One place I would look is ...
Published by William J Cooper
1 Comment
I think its Municipal Water District of Orange County (MWDOC), in fact. As far as I am aware they recycle water to just short of drinking standards before pumping it into their aquifer and leaving it there for several years. Then they pump it up again and treat it for consumption. This has several benefits - it pressurizes the aquifer to keep seawater out; processes in the aquifer rock help "treat" the water; and lets the public think they are drinking groundwater rather than having to get them used to the idea of recycled water! :)
Published by Peter Williams, Founder and Principal at Peter Williams Solutions LLC