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Lunenburg CWMP Phase II – Management Techniques and Alternatives Identification and Screening Lunenburg Comprehensive Wastewater Management Plan Workshop.

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Presentation on theme: "Lunenburg CWMP Phase II – Management Techniques and Alternatives Identification and Screening Lunenburg Comprehensive Wastewater Management Plan Workshop."— Presentation transcript:

1 Lunenburg CWMP Phase II – Management Techniques and Alternatives Identification and Screening Lunenburg Comprehensive Wastewater Management Plan Workshop – August 27, 2007

2 Lunenburg CWMP 2 Project Management/Public Involvement Phase I -Existing Conditions (filed May 2007) Phase II -Alternatives Identification and Screening Phase III - Detailed Evaluation of Alternatives and Recommended Plan Phase IV – Report CWMP Phases

3 Lunenburg CWMP 3 Phase I CWMP Summary Existing conditions Water demand/supply sources  Lunenburg Water District Water balance  3 local sub basins of the Nashua River Wastewater needs assessment  11 Areas of Further Study

4 Lunenburg CWMP 4 Project Management/Public Involvement Phase I -Existing Conditions Phase II -Alternatives Identification and Screening Phase III - Detailed Evaluation of Alternatives and Recommended Plan Phase IV - Report CWMP Phases

5 Lunenburg CWMP 5 Phase II - Alternatives Identification and Screening Proposed Alternatives  Collection  Treatment  Effluent Disposal Review Criteria  Technical  Environmental  Institutional  Economic

6 Lunenburg CWMP 6 Review wastewater management alternatives Identify and short list potential wastewater treatment and effluent disposal sites Provide short list of treatment, collection and effluent disposal alternatives Phase II CWMP

7 Lunenburg CWMP 7 Draft Phase II report Section 1 – Introduction Section 2 - WW Management Alternatives Reviewed as Tech Memo #1 Section 3 - Potential Treatment/Disposal Site Locations Reviewed as Tech Memo #2 Section 4 - Short Listed Alternatives Section 5 – Assessment of Management Techniques Section 6 - Public Participation

8 Lunenburg CWMP 8 Technical Memorandum #2 Potential wastewater treatment and effluent disposal sites  To be used if a decentralized treatment process is part of the recommended plan Townwide search identified 23 potential sites Performed preliminary hydrogeological evaluation  Soils, depth to bedrock, and effluent disposal rates Short listed 9 sites by sub basin  Based on 11 technical and environmental factors

9 Lunenburg CWMP 9 Questions and Comments

10 Lunenburg CWMP 10 Individual on-site systems (Title 5) Innovative/Alternative (I/A) on-site systems  Jet System  Presby  FAST Private satellite systems  Village at Flat Hills  Woodlands Village Sewer connections – regional/centralized  Leominster  Fitchburg How is Lunenburg Wastewater Disposed of Now?

11 Lunenburg CWMP 11 Individual On-Site Title 5 Septic tank/leach field I/A On-Site Systems Types of Wastewater Systems

12 Lunenburg CWMP 12 Types of Wastewater Systems Satellite -- Defined service area, GWD permit Village at Flat Hill

13 Lunenburg CWMP 13 Types of Wastewater Systems Satellite -- Defined service area, GWD permit Woodlands Village

14 Lunenburg CWMP 14 Centralized - Traditional municipal facility Types of Wastewater Systems Fitchburg East WWTF

15 Lunenburg CWMP 15 Centralized - Traditional municipal facility Types of Wastewater Systems Leominster WWTF

16 Lunenburg CWMP 16 Population Projections 2005 Actual: 9, EOEA Projection 11,133 1,579 additional residents per EOEA projections Existing Planned Developments 956 planned units 3,555 existing units Basis for 2026 Projected Flows

17 Lunenburg CWMP 17 Centralized Systems  Publicly owned and operated Decentralized Systems  Individual on-site  Cluster  Satellite  Typically privately owned and operated Types of Wastewater Systems

18 Lunenburg CWMP 18 Off-site   Regional solutions   Centralized treatment   Satellite systems On-site   Cluster   Continued use of on-site systems –Title 5 –I/A Systems –Septage Management Plans Proposed Alternatives - Treatment


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