BOSTON WATER AND SEWER COMMISSION PROPOSED CAPITAL IMPROVEMENT PROGRAM 2021‐2023 Henry F. Vitale Executive Director November 2020 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 Irene McSweeney, P.E., Chief of Operations Paul Canavan, Director of Operations Gerard Dwyer, Chief Administrative Officer Janis Smith, General Counsel Nelson W. Piacenza, Chief Financial Officer & Treasurer Peter Hunt, Chief Information Officer Hussein Dayib, Director of Organizational Diversity Cary McGuire, P.E., Director of Engineering Charlie Jewell, Director of Planning & Sustainability Peter Salvatore, P.E., Director of Construction Robert Capogreco, Director of Finance Prepared by the Finance Division ii Table of Contents EXECUTIVE SUMMARY ............................................................................................................. 1 DISCUSSION OF MANAGEMENT OBJECTIVES AND ACCOMPLISHMENTS ................................... 2 OBJECTIVES ................................................................................................................................ 3 PROJECT HIGHLIGHTS ................................................................................................................ 4 WATER DISTRIBUTION SYSTEM ................................................................................................. 5 SEWER SYSTEM .......................................................................................................................... 6 CONSENT DECREE ...................................................................................................................... 7 PROJECTS ASSOCIATED WITH THE CONSENT DECREE & WATER QUALITY IMPROVEMENTS ..... 8 DEDICATED INFILTRATION INFLOW 4:1 PROJECTS………………………………………………………………….9 WASTEWATER AND STORM DRAINAGE FACILITIES PLAN ........................................................ 11 SUPPORT PROJECT EXPENDITURES .......................................................................................... 11 STORMWATER PROJECT EXPENDITURES ................................................................................. 12 MASSACHUSETTS WATER RESOURCES AUTHORITY (MWRA) .................................................. 13 FUNDING SOURCES AND FINANCIAL IMPACT .......................................................................... 15 WATER DISTRIBUTION SYSTEM ............................................................................................. 23 OBJECTIVES .............................................................................................................................. 24 2021‐2023 WATER DISTRIBUTION SYSTEM CAPITAL PROGRAM ............................................. 25 WATER MAIN REPLACEMENT PROGRAM ............................................................................... 31 WATER MAIN REPLACEMENT PROGRAM 2021 SUMMARY .................................................... 32 METHODOLOGY FOR SELECTING WATER MAINS FOR REHABILITTION .................................... 32 WATER REPLACEMENT .......................................................................................................... 33 NEW PROJECTS ........................................................................................................................ 33 ONGOING PROJECTS ................................................................................................................ 33 PROJECT CASH FLOW ............................................................................................................... 37 WATER DISTRIBUTION SYSTEM SPECIAL PROJECTS ................................................................ 39 NEW PROJECTS ........................................................................................................................ 39 ONGOING PROJECTS ................................................................................................................ 39 PROJECT CASH FLOW ............................................................................................................... 41 THE SEWER SYSTEM ............................................................................................................... 43 OBJECTIVES .............................................................................................................................. 44 iii 2021‐2023 SEWER SYSTEM CAPITAL PROGRAM ..................................................................... 44 WASTEWATER PROJECT HIGHLIGHTS ...................................................................................... 44 PROJECT CASH FLOW ............................................................................................................... 45 SEWER RENEWAL AND REPLACEMENT .................................................................................. 52 NEW PROJECTS ........................................................................................................................ 52 ONGOING PROJECTS ................................................................................................................ 53 PROJECT CASH FLOW ............................................................................................................... 57 INCREASED CAPACITY PROJECTS ............................................................................................ 59 NEW PROJECTS ........................................................................................................................ 59 ONGOING PROJECTS ................................................................................................................ 59 PROJECT CASH FLOW ............................................................................................................... 60 SEWER SEPARTATION ............................................................................................................ 62 NEW PROJECTS ........................................................................................................................ 63 ONGOING PROJECTS ................................................................................................................ 63 PROJECT CASH FLOW ............................................................................................................... 64 SEWER SYSTEM SPECIAL ........................................................................................................ 66 NEW PROJECTS ........................................................................................................................ 66 ONGOING PROJECTS ................................................................................................................ 66 PROJECT CASH FLOW ............................................................................................................... 69 DEDICATED INFILTRATION INFLOW 4:1 PROJECTS ................................................................. 71 SUPPORT PROJECTS ............................................................................................................... 81 OBJECTIVES .............................................................................................................................. 81 METERING ............................................................................................................................. 85 NEW PROJECTS ........................................................................................................................ 85 ONGOING PROJECTS ................................................................................................................ 85 PROJECT CASH FLOW ............................................................................................................... 85 INFORMATION TECHNOLOGY ................................................................................................ 87 NEW PROJECTS ........................................................................................................................ 87 ONGOING PROJECTS ................................................................................................................ 88 PROJECT CASH FLOW ............................................................................................................... 88 ADMINISTRATIVE EQUIPMENT .............................................................................................. 90 NEW PROJECTS ........................................................................................................................ 90 ONGOING PROJECTS ................................................................................................................ 91 iv PROJECT CASH FLOW ............................................................................................................... 92 STORMWATER/GREEN INFRASTRUCTURE/LOW IMPACT DEVELOPMENT PROJECTS .............. 95 NEW PROJECTS ........................................................................................................................ 97 ONGOING PROJECTS ................................................................................................................ 98 PROJECT CASH FLOW ............................................................................................................... 99 APPENDIX A‐ GLOSSARY ....................................................................................................... 102 APPENDIX B‐ KEY ABBREVIATIONS ......................................................................................