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Phase III – Detailed Evaluation of Alternatives and Recommendation of Wastewater Management Plan

Workshop – January 3, 2007. Lunenburg Comprehensive Wastewater Management Plan. Phase III – Detailed Evaluation of Alternatives and Recommendation of Wastewater Management Plan. Project Administration. Next Workshop Meeting Completion schedule for Phase III Draft Report - January 2007

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Phase III – Detailed Evaluation of Alternatives and Recommendation of Wastewater Management Plan

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  1. Workshop – January 3, 2007 Lunenburg Comprehensive Wastewater Management Plan Phase III – Detailed Evaluation of Alternatives and Recommendation of Wastewater Management Plan

  2. Project Administration • Next Workshop Meeting • Completion schedule for Phase III • Draft Report - January 2007 • Review Draft Report - February 2007 • ENF submittal - End of February 2007 • Public Hearing - Winter - March 2008

  3. Impact Analysis • Economic • Construction Costs • Based on similar projects, and vendor pricing • O&M Costs • A total of the annual costs - 20 year planning period • Environmental Factors • CWMP Guidelines • EOEA permit requirements • Town of Lunenburg

  4. Environmental Analysis • Treatment and Effluent Quality • Drinking Water • Water Balance • Wetlands, Flood Plain, and Agricultural • Endangered and Protected Species • Septage Disposal • Odors, Air Quality and Noise • Open Space, Recreation, and Surface Water • Growth and Development • Aesthetic

  5. Selection Methodology Environmental and economic factors Weighted factors • Weighting are specific to each Area • Weighting based on a scale of 1 to 3 • 1 is a minor factor • 3 is a major factor Ranked alternatives • Each alternative ranked on a scale of 1 to 5 • 1 is most well suited • 5 is least well suited Rankings multiplied by weightings Weighted rankings were summed

  6. Decision Matrix Total weighted ranking scores Decision matrix incorporates weighted rankings for each study area • Lowest ranking - Most well suited • Highest ranking - Least well suited Each Area - Viable alternative with lowest ranking • Selected for the recommended plan

  7. Updated Tech Memo #1 –Refined Needs Areas • Land Board Comments • Needs Analysis Criteria • Title 5 System Inspections • Soils/Drainage Class • Depth to Bedrock • Lot Sizes • Water Supply Protection • Depth to Groundwater • Lunenburg Water Resource Protection District • Areas with Regulated Setbacks • Floodplains • Areas of Critical Environmental Concern • Priority/Estimated Habitat Areas • Historic District

  8. Questions and Comments

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