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Sustainable Wastewater Solution for Serenbe: A Smart Growth Community Project

Read about the turnkey decentralized wastewater system designed to support the sustainable development of the Serenbe community in Palmetto, Georgia. The solution implemented offers various environmental and economic benefits while ensuring long-term operational efficiency. Learn more about the innovative features and benefits of this solution in this comprehensive case study.

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Sustainable Wastewater Solution for Serenbe: A Smart Growth Community Project

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  1. Serenbe Palmetto, GA Case Study

  2. Project Summary Location: Palmetto, Georgia Acreage: 900 Units:Approx. 165 residential units, 115 Live/work units, 6 Commercial units Product Type:Smart Growth community with interconnected, variably-sized settlements, including small villages, hamlets and farmsteads. Master Plan:Two (2) distinct Hamlets (i.e. stand-alone communities), each arranged in an Omega design with 140 residential and commercial units Topography: Gently rolling Soil: Sandy loam

  3. Phase I. Summary Selborne Community Units:140 units, including approximately 50 live/work and 4 commercial Home Prices:$150,000 to over $1 million Absorption Rate:3-4 years

  4. Project Considerations • Municipal sewer service was not available • Community was planned with environmental sustainability as a top priority • Highest and best use achieved through clustered development with substantial open space • Minimize upfront capital investment, and spread cost over life of project. • Maximize economic return by providing project design flexibility; offering multiple products and price points. • Solution must provide for professional operation, maintenance and customer service

  5. Solution • Turnkey decentralized wastewater system • Design • Build • Operate • Collection System • Individual septic tanks with gravity collection • Treatment • Recirculating Sand/Gravel Filter combined with a Constructed Wetland • Disposal • Subsurface Drip Irrigation

  6. Ownership & Management • Once system is constructed and approved, ownership is transferred to Utility as “Contribution In-Aid” (non-taxable transaction). • Utility will own, operate and maintain system in perpetuity. (including individual and central system components ) • Utility is certified as wastewater system operator by the State of Georgia Department of Public Health? • Utility provides performance bond to the State Health Department and evidence of financial viability to the Public Service Commission

  7. Developer Benefits • Turn-key solution • Minimize upfront capital cost • Maximize development design flexibility • Utility company assumes operational liability • State of Georgia monitors system performance and financial viability of Utility • Ability to re-use treated effluent for community irrigation • Proven technology

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