Test Your Recycling Knowledge
From easy to hard
Berkeley
Greywater Action offers workshops on installing Greywater systems, and their web site is packed with information on Greywater, composting toilets, rainwater harvesting, dams, river restoration, sewers, and more. Web site also includes information on their publications, including "Dam Nation". Online Contact Form: [greywateraction.org/contact](http://greywateraction.org/contact)
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