2017 - 2019 Capital Improvement Program Boston Water and Sewer Commission BOSTON WATER AND SEWER COMMISSION CAPITAL IMPROVEMENT PROGRAM 2017-2019 Henry F. Vitale Executive Director November 2016 BOARD OF COMMISSIONERS Michael J. Woodall, Chair Muhammad Ali-Salaam, Commissioner Cathleen Douglas Stone, Commissioner Henry F. Vitale, Executive Director John P. Sullivan, P.E., Chief Engineer Paul Canavan, Director of Operations Stephen P. Shea, P.E., Director of Engineering Charlie Jewell, Director of Planning Irene McSweeney, P.E., Director of Construction Gerard Dwyer, Chief Administrative Officer Bonnie Gottschalk, General Counsel Nelson W. Piacenza, Chief Financial Officer & Treasurer Robert Capogreco, Director of Finance Prepared by the Finance Division ii CONTENTS EXECUTIVE SUMMARY .................................................................................................................... 1 DISCUSSION OF MANAGEMENT OBJECTIVES AND ACCOMPLISHMENTS .................................. 1 PROJECT HIGHLIGHTS ................................................................................................................. 5 PROJECTS ASSOCIATED WITH THE CONSENT DECREE & WATER QUALITY IMPROVEMENTS .... 6 INTRODUCTION ............................................................................................................................... 9 BACKGROUND ............................................................................................................................. 9 WATER DISTRIBUTION SYSTEM EXPENDITURES ....................................................................... 17 SEWER SYSTEM EXPENDITURES ................................................................................................ 18 SUPPORT PROJECT EXPENDITURES ........................................................................................... 18 STORMWATER PROJECT EXPENDITURES .................................................................................. 19 MASSACHUSETTS WATER RESOURCES AUTHORITY (MWRA) .................................................. 20 FUNDING SOURCES AND FINANCIAL IMPACT .......................................................................... 22 WATER DISTRIBUTION SYSTEM .................................................................................................... 23 OBJECTIVES ............................................................................................................................... 24 2017-2019 WATER DISTRIBUTION SYSTEM CAPITAL PROGRAM ............................................. 24 WATER MAIN REPLACEMENT PROGRAM ..................................................................................... 29 WATER MAIN REPLACEMENT PROGRAM 2017 SUMMARY ..................................................... 31 METHODOLOGY FOR SELECTING WATER MAINS FOR REHABILITATION ................................. 31 WATER REPLACEMENT ................................................................................................................. 32 NEW PROJECTS ......................................................................................................................... 32 ONGOING PROJECTS ................................................................................................................. 33 PROJECT CASH FLOW ................................................................................................................ 36 WATER RELINE PROJECTS ............................................................................................................. 38 NEW PROJECTS ......................................................................................................................... 38 ONGOING PROJECTS ................................................................................................................. 38 PROJECT CASH FLOW ................................................................................................................ 38 WATER DISTRIBUTION SYSTEM SPECIAL PROJECTS ...................................................................... 40 NEW PROJECTS ......................................................................................................................... 40 ONGOING PROJECTS ................................................................................................................. 40 iii PROJECT CASH FLOW ................................................................................................................ 44 THE SEWER SYSTEM ...................................................................................................................... 47 DEDICATED INFILTRATION INFLOW 4:1 PROJECTS ................................................................... 49 OBJECTIVES ............................................................................................................................... 51 2017-2019 SEWER SYSTEM CAPITAL PROGRAM ...................................................................... 52 WASTEWATER PROJECTS HIGHLIGHTS ..................................................................................... 52 SEWER RENEWAL AND REPLACEMENT ......................................................................................... 58 NEW PROJECTS ......................................................................................................................... 58 ONGOING PROJECTS ................................................................................................................. 59 PROJECT CASH FLOW ................................................................................................................ 62 INCREASED CAPACITY PROJECTS .................................................................................................. 64 NEW PROJECTS ......................................................................................................................... 64 ONGOING PROJECTS ................................................................................................................. 65 PROJECT CASH FLOW ................................................................................................................ 66 SEWER SEPARATION ..................................................................................................................... 68 NEW PROJECTS ......................................................................................................................... 68 ONGOING PROJECTS ................................................................................................................. 68 PROJECT CASH FLOW ................................................................................................................ 69 INFILTRATION AND INFLOW ......................................................................................................... 71 NEW PROJECTS ......................................................................................................................... 71 ONGOING PROJECTS ................................................................................................................. 71 PROJECT CASH FLOW ................................................................................................................ 72 SEWER SYSTEM SPECIAL ............................................................................................................... 74 NEW PROJECTS ......................................................................................................................... 74 ONGOING PROJECTS ................................................................................................................. 74 PROJECT CASH FLOW ................................................................................................................ 78 SUPPORT PROJECTS ...................................................................................................................... 81 OBJECTIVES ............................................................................................................................... 81 METERING ................................................................................................................................. 85 NEW PROJECTS ......................................................................................................................... 85 ONGOING PROJECTS ................................................................................................................. 86 PROJECT CASH FLOW ................................................................................................................ 86 INFORMATION TECHNOLGY ..................................................................................................... 88 iv NEW PROJECTS ......................................................................................................................... 89 ONGOING PROJECTS ................................................................................................................. 89 PROJECT CASH FLOW ................................................................................................................ 91 ADMINISTRATIVE EQUIPMENT ..................................................................................................... 93 NEW PROJECTS ......................................................................................................................... 93 ONGOING PROJECTS ................................................................................................................. 93 PROJECT CASH FLOW