1. Spring 2009 Town Meeting Article 41 East Framingham Sewer Improvement Project (EFSIP) May 2009 Town of Framingham Department of Public Works "Preserving Your Investment in the Public Infrastructure"

2. Project Background Project Background Comprehensive Wastewater Management Plan (CWMP) Objectives Comprehensive Wastewater Management Plan (CWMP) Objectives  Promoted enhanced management of system  Change from reactive to proactive management  Addressed critical and urgent needs  Maintain regulatory compliance  Precursor to large-scale planned capital improvements Largest Project Identified in the CWMP Largest Project Identified in the CWMP

3. Project Area EFSIP is the single largest project in the Capital Improvement Program

4. Regulatory Requirements Regulatory Requirements Settlement Agreement with MWRA Settlement Agreement with MWRA  Reduce sulfide loads and minimize corrosion in MWRA system downstream  Sulfide concentration limit of 0.3 mg/l  Requires approximately 90% reduction in sulfide loadings Administrative Consent Order with MADEP Administrative Consent Order with MADEP  EFSIP is specifically identified in ACO due to multiple SSOs  Design complete December 2009  Commence construction by July 2010  Complete construction December 2013

5. EFSIP Project Area Facts EFSIP Project Area Facts Project area primarily consists of two large pump stations and long lengths of force main piping Project area primarily consists of two large pump stations and long lengths of force main piping  Both Saxonville and Speen St pump stations require constant repair and are beyond their useful lives  30,000 feet total length force main  Saxonville force main was designed for industrial use that was never realized  Speen St force main is largely located in Natick  Speen St force main is a piecemeal piping system comprised of sections of pipe ranging from 1910 to 1978  The use of the long sections of force main created a shallow sewer infrastructure or “spine” for all east Framingham

6. EFSIP Project Area Facts EFSIP Project Area Facts Hydrogen Sulfide Related Odors and Corrosion Hydrogen Sulfide Related Odors and Corrosion  Generation of large sulfide loads  80% of sulfide is generated in force mains  Reason for the Settlement Agreement with MWRA Historical Piece-Meal Development of System Historical Piece-Meal Development of System  Numerous pumping stations  High annual electricity costs/O&M  Unknown piping locations Sanitary Sewer Overflows (SSOs)Sanitary Sewer Overflows (SSOs)  Force main breaks

7. Results of Sulfide Corrosion Speen Street Force Main MWRA Framingham Extension Sewer

8. EFSIP Project Objectives EFSIP Project Objectives Maintain Compliance With ACO and MWRA Agreement Maintain Compliance With ACO and MWRA Agreement Address Deteriorating Infrastructure and Capacity Issues Address Deteriorating Infrastructure and Capacity Issues  Pumping stations  Force mains  Gravity sewers Lower Sulfide Generation and Loadings to MWRA Lower Sulfide Generation and Loadings to MWRA Minimize Energy Consumption and O&M Minimize Energy Consumption and O&M  Eliminate pumping stations Re-Thinking the Overall Sewer Flow Re-Thinking the Overall Sewer Flow Paradigm of Eastern Framingham

9. Overall Project 1. Construct large diameter interceptor 2. Eliminate 2 pumping stations 3. Construct new major pumping station and force main (replace existing Saxonville PS) 4. Construct gravity sewer along rail trail 5. Eliminate 1 major pumping station and 2 long force mains 6. Following project eliminate additional pumping station

10. EFSIP Summary Net Elimination of 3 Pumping Stations Net Elimination of 3 Pumping Stations Combine 2 Existing Pumping Stations (Saxonville and Speen) Into One New Facility Combine 2 Existing Pumping Stations (Saxonville and Speen) Into One New Facility Net Elimination of 23,000 ft of Force Main Net Elimination of 23,000 ft of Force Main 7,000 ft New Force Main 7,000 ft New Force Main 18,000 ft New Gravity Interceptor Sewer 18,000 ft New Gravity Interceptor Sewer

11. New Pumping Station PRELIMINARY

12. Conceptual Facility Layout Preliminary Pump Station Location

13. Project Costs Approximate Capital Expenditure by Fiscal Year ($ Millions) FY 2010 FY 2011 FY 2012 FY 2013 Total $4.9$16.8$14.9$3.8$40.4 The cost of replacing this infrastructure in-kind is the same as reconfiguring it the right way.