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          | References |  | 
        
          | Ludwig, Art.
            Builder's Greywater Guide: Installation of Greywater Systems in New
            Construction and Remodeling. Santa Barbara: Oasis Design, 1995. |  | 
        
          |  |  | 
        
          | Ludwig, Art. Create an
            Oasis with Greywater: Your complete Guide to Choosing, Building and
            Using Greywater Systems. Santa Barbara: Oasis Deign, 2000. |  | 
        
          |  |  | 
        
          | Lehr, Valentine A. "Grey Water
            Systems." American Society of Sanitary Engineering 1986, online
            31 Jan. 2001. |  | 
        
          |  |  | 
        
          | Ludwig, Art. Builder's Greywater Guide:
            Installation of Greywater Systems in New Construction and Remodeling.
            Santa Barbara: Oasis Design, 1995. |  | 
        
          |  |  | 
        
          | Ludwig, Art.
            Create an Oasis with Greywater: Your complete Guide to Choosing, Building
            and Using Greywater Systems. Santa Barbara: Oasis Deign, 2000. 
 |  | 
        
          |  |  | 
        
          | Washington State Department
            of Health - Office of Environmental Health & Safety Wastewater Management Program
 http://www.doh.wa.gov/ehp/ts/waste.htm
 
 |  | 
        
          |  |  | 
        
          | "Water
            Conserving On-Site Wastewater Treatment Systems" http://www.doh.wa.gov/ehp/ts/WW/WaterConservSystems-2000.pdf
 |  | 
        
          |  |  | 
        
          | Campbell, Craig and Michael
            Ogdon. Constructed Wetlands in the Sustainable Landscape. John Wiley
            & Sons, NY. 1999. |  | 
        
          |  |  | 
        
          | The Humanure Handbook. Jenkins Publishing,
            PO Box 607, Grove City, PA 16127. To order, phone: 1-800-639-4099.
            www.jenkinspublishing.com |  | 
        
          |  |  | 
        
          | http://www.rmi.org
            RockyMountain Institute: a nonprofit organization that fosters the
            efficient and restorative use of resources to create a more secure,
            prosperous, and life-sustaining world |  | 
        
          |  |  | 
        
          | http://www.greenbuilder.com
            Sustainable Building Sourcebook |  | 
        
          |  |  | 
        
          | http://www.sustainable.doe.gov
            Center for Excellence in Sustainable Development |  | 
        
          |  |  |  | 
        
          |  | http://www.clivusmultrum.com |  | 
        
          |  |  |  | 
        
          |  | http://www.epa.gov/ |  | 
        
          |  |  |  | 
        
          |  | http://www.greywater.com/ |  | 
        
          |  |  |  | 
        
          |  | http://www.nutricyclesystems.com/ |  | 
        
          |  |  |  | 
        
          |  | http://www.oasisdesign.net |  | 
        
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          |  | http://www.riles.org |  |