1. Massachusetts Water Resources Authority Presentation to American Council of Engineering Companies April 11, 2013 Michael J. Hornbrook Chief Operating Officer

2. RECENTLY COMPLETED AND ONGOING PROJECTS

3. Progress On Water System Redundancy 3 Hultman Aqueduct Rehab/ MetroWest Interconnections Southern Spine Section 18, 50 & 51 Rehab Spot Pond Storage Tank & Pump Station (under construction) Stoneham/Reading Interconnection Section 89 Globe Valve Replacement Hultman Aqueduct Rehab/ MetroWest Interconnections Southern Spine Section 18, 50 & 51 Rehab Spot Pond Storage Tank & Pump Station (under construction) Stoneham/Reading Interconnection Section 89 Globe Valve Replacement

4. Lynnfield/Saugus Pipelines: Fay, Spofford & Thorndike, LLC 12,000 feet of new water mains under Route 1; including new 12-inch main for Saugus Completed December 2012 4

5. Northern Intermediate High – Stoneham Interconnections: Dewberry Engineers, Inc. 2,200-foot-long, 36-inch-diameter emergency pipeline connection between Stoneham and Reading Completed January 2012 5

6. Lower Hultman Aqueduct Rehab: Jacobs Engineering Group, Inc. 13.2 miles of joint and leak repair Interconnections to MetroWest Tunnel 94% complete 6

7. Upper Hultman Aqueduct Rehab: Jacobs Engineering Group, Inc. Inspection and rehab of 9,600 feet of Upper Hultman 75% complete 7

8. Spot Pond Storage Tank and Emergency Pump Station: Hazen & Sawyer PC, Design – CDM Smith, Owner’s Rep 20-million gallon buried, concrete storage tank and emergency pump station 21% complete

9. Gillis Pump Station Improvements (VFDs) Dewberry Engineering, Inc. Construction Notice to Proceed: June 2013 Estimated Cost: $3.9 million

10. Wachusett Aqueduct Pump Station: Fay, Spofford & Thorndike, LLC 10 Construction Notice to Proceed: April 2014 Estimated Cost: $45.6 million

11. Northern Intermediate High Redundancy: Fay, Spofford & Thorndike, LLC 11 Section 89 & 29 - Phase 1 Construction Notice to Proceed: January 2015 Estimated Cost : $21.3 million Section 89 & 29 - Phase 2 Construction Notice to Proceed: May 2015 Estimated Cost : $21.7 million

12. Southern Extra High Redundancy - Study: Kleinfelder Northeast, Inc. 12 Design Award: January 2014 Construction Notice to Proceed: July 2016 Estimated Cost: $28.3 million

13. Carroll Treatment Plant UV: AECOM Technical Services, Inc. Addition of ultraviolet disinfection facilities to meet new SDWA regulations 87% complete 13

14. Quabbin Water Treatment Plant UV: AECOM Technical Services, Inc. Addition of ultraviolet disinfection facilities to meet new SDWA regulations 3% complete 14

15. Brookline Sewer Separation – Microtunneling: Beta Group, Inc. Installation of 4,500 feet of new storm drain by microtunneling Plus 5,080 feet of storm drain and sewer by open trench 97% complete 15

16. Brookline Outfall Cleaning: Dewberry Engineers, Inc. To ensure that the outfall has adequate hydraulic capacity to convey Brookline’s separated stormwater to the Charles River Basin Completed August 2012 16

17. Cambridge CSO Stormwater Wetland: Kleinfelder Northeast, Inc. Construction of 4 x 8 box culvert storm drain and and wetland basin 90% complete 17

18. Alewife Brook CSO Control Plan: Kleinfelder Northeast, Inc. Sewer Separation - Huron Ave Construction Notice to Proceed: July 2013 Estimated Cost: $17.5 million Sewer Separation – Concord Ave Construction Notice to Proceed: January 2014 Estimated Cost: $7.3 million

19. Deer Island – North Main Pump Station VFDs: Malcolm Pirnie, Inc., Design – Fay, Spofford & Thorndike, LLC, EDCS Replacing obsolete variable frequency drives 18% complete 19

20. Deer Island: Scum Skimmer Replacement Fay, Spofford & Thorndike, LLC 20 Construction Notice to Proceed: June 2013 Estimated Cost: $20.0 million

21. Deer Island Butterfly Valve Replacement – North Main Pump Station And Winthrop Terminal Facility: AECOM Construction Notice to Proceed: June 2013 Estimated Cost: $10 million

22. Chelsea Headworks Rehabilitation: Malcolm Pirnie/ARCADIUS US, Inc. 22 Construction Notice to Proceed: February 2015 Estimated Cost: $52.1 million

23. Clinton Wastewater Treatment Plant Aeration: Fay, Spofford & Thorndike, LLC Installing fine bubble diffusers in aeration tanks obtain a better oxygen transfer rate and reduce electricity consumption 99% complete 23

24. Clinton Wastewater Treatment Plant Digester Rehab: Fay, Spofford & Thorndike, LLC Clean and rehab digesters and rehab the tanks (replace covers, piping, valves, gas lancers and mixers) to operate under new NPDES permit Construction Notice to Proceed: June 2013 Estimated Construction Cost: $3.2 million 24

25. Clinton Treatment Plant Phosphorous Removal 25 Phosphorous Reduction Facility Chlorine Contact Tank Design Award: June 2013 Construction Notice to Proceed: August 2016 Estimated Cost: $5.8 million

26. MWRA’s Capital Improvement Program Over 80% of MWRA’s capital spending has been for projects mandated by federal or state regulators

27. Future Capital Spending 27 FY2014 will mark the beginning of a new five-year cap for MWRA’s CIP - $350 million lower than the current cap The lowest projected spending since the Boston Harbor Clean-up began in 1990

28. As of December 31th, 2012, the total Indebtedness is $5.8 billion For the first time, MWRA will be paying off more principal on debt than annual capital spending Paying Down Debt 28

29. UPCOMING CONTRACT AWARDS

30. Upcoming Design Contracts 30 ProjectPhaseNotice to Proceed Estimated Contract Amount ($000s) FY13 Anticipated Awards Weston Aqueduct Supply MainsWeston Aqueduct Supply Mains 3 – MEPA/DesignMay-13$32,979 Clinton Wastewater Treat PlantPhosphorous Removal Design/ESDCJun-13$900 Carroll Water Treatment PlantTechnical Assistance 7Jun-13$750 Carroll Water Treatment PlantTechnical Assistance 8Jun-13$750

31. Upcoming Design Contracts 31 ProjectPhaseNotice to Proceed Estimated Contract Amount ($000s) FY14 Anticipated Awards Capital Maintenance Planning & Development As-Needed Design Contract 11Aug-13$1,600 Capital Maintenance Planning & Development As-Needed Design Contract 12Aug-13$1,600 Capital Maintenance Planning & Development As-Needed Design Contract 13Aug-13$1,600 DI Treatment Plant Asset Protection Heating Ventilation Air Conditioning Equipment Replacement - Design/ESDC Aug-13$3,500 DI Treatment Plant Asset Protection Fire Alarm System Replacement-DesignSep-13$2,100 Wastewater Meter System- Equipment Repl. Planning / StudySep-13$100 DI Treatment Plant Asset Protection Thermal Power Plant Fuel System Modifications Resident Engineer Inspection Sep-13$800 Spot Pond Supply Mains Rehabilitation Section 4 Webster Ave Bridge Pipe Rehabitation Design Sep-13$500 DI Treatment Plant Asset Protection Digester & Storage Tank Rehab Design/ESDCOct-13$3,000 DI Treatment Plant Asset Protection Clarifier Ph 2 DesignNov-13$3,000

32. IN OTHER NEWS

33. E-Procurement: Phased Approach MWRA has been working to get procurements on-line Contracts Portal expected to go live this summer 33 Register for an account Supply company details to ensure event notification Preview upcoming bid events Submit bid responses electronically Edit bid responses until bid event closes

34. E-Procurement: Supplier Portal Went Live Last Week 34