City of Morgan Hill Water System Master Plan 2017

City of Morgan Hill Water System Master Plan

TABLE OF CONTENTS

PAGE NO.

4.7 BOOSTER STATIONS .......................................................................................4-9 4.8 PRESSURE REDUCING VALVES .....................................................................4-9 5.0 CHAPTER 5 – DOMESTIC WATER DEMANDS ................................................................5-1 5.1 EXISTING DOMESTIC WATER DEMANDS.......................................................5-1 5.2 FUTURE DOMESTIC WATER DEMANDS .........................................................5-1 5.3 RECYCLED WATER DEMANDS........................................................................5-1 5.4 MAXIMUM DAY AND PEAK HOUR DEMANDS .................................................5-5 5.5 DIURNAL DEMAND PATTERNS........................................................................5-5 6.0 CHAPTER 6 - HYDRAULIC MODEL DEVELOPMENT......................................................6-1 6.1 OVERVIEW ........................................................................................................6-1 6.2 MODEL SELECTION..........................................................................................6-1 6.3 HYDRAULIC MODEL DEVELOPMENT..............................................................6-1 6.3.1 Skeletonization .....................................................................................6-1 6.3.2 Pipes and Nodes ..................................................................................6-2 6.3.3 Digitizing and Quality Control................................................................6-2 6.3.4 Demand Allocation ...............................................................................6-2 6.4 MODEL CALIBRATION ......................................................................................6-3 6.4.1 Calibration Plan and SCADA ................................................................6-3 6.4.2 EPS Calibration ....................................................................................6-3 6.4.3 Use of the Calibrated Model .................................................................6-3 7.0 CHAPTER 7 - EVALUATION AND PROPOSED IMPROVEMENTS ..................................7-1 7.1 OVERVIEW ........................................................................................................7-1 7.2 FIRE FLOW ANALYSIS......................................................................................7-1 7.3 LOW PRESSURES ANALYSIS ..........................................................................7-4 7.4 HIGH PRESSURE ANALYSIS............................................................................7-4 7.5 WATER SUPPLY REQUIREMENTS ..................................................................7-4 7.5.1 Existing Supply Requirements ..............................................................7-4 7.5.2 Future Supply Requirements ................................................................7-9 7.6 WATER STORAGE REQUIREMENTS...............................................................7-9 7.6.1 Existing Storage Requirements ............................................................7-9 7.6.2 Future Storage Requirements...............................................................7-9 7.6.3 Recommended New Storage Facilities .................................................7-9 7.7 PUMP STATION CAPACITY ANALYSIS............................................................7-12 7.7.1 Existing Pump Station Capacity Requirements .....................................7-16 7.7.2 Future Pump Station Capacity Requirements .......................................7-16 7.8 PIPELINE IMPROVEMENTS TO SERVE FUTURE GROWTH...........................7-16 7.8.1 Boys Ranch Pressure Zone ..................................................................7-16 7.8.2 Nob Hill Pressure Zone.........................................................................7-22 7.8.3 Holiday Pressure Zones .......................................................................7-23 7.9 PIPELINE REPAIR AND REPLACEMENT .........................................................7-23 8.0 CHAPTER 8 – CAPITAL IMPROVEMENT PROGRAM .....................................................8-1 8.1 COST ESTIMATE ACCURACY ..........................................................................8-1 8.2 COST ESTIMATE METHODOLOGY..................................................................8-2 8.2.1 Unit Costs.............................................................................................8-2 8.2.2 Construction Cost Index .......................................................................8-2

June 2017

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City of Morgan Hill Water System Master Plan