City of Morgan Hill Water System Master Plan 2017

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City of Morgan Hill
Water System Master Plan
TABLE OF CONTENTS PAGE NO.
June 2017 ii City of Morgan Hill
Water System Master Plan
4.7 BOOSTER STATIONS .......................................................................................4-9
4.8 PRESSURE REDUCING VALVES .....................................................................4-9
5.0
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.
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.
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.
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