Urban Water Management Plan 2015

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August 2016 ii City of Morgan Hill
2015 Urban Water Management Plan
City of Morgan Hill
2015 Urban Water Management Plan
Table of Contents Page No.
5.5 GROSS W ATER USE ........................................................................................................................................... 5-7
5.6 B ASELINE DAILY PER CAPITA W ATER USE............................................................................................................. 5-11
5.7 2015 AND 2020 T ARGETS................................................................................................................................ 5-12
5.7.1 5-Year Baseline – 2020 Target Confirmation ......................................................................................... 5-13
5.8 2015 COMPLIANCE DAILY PER CAPITA WATER USE ............................................................................................... 5-14
5.9 R EGIONAL A LLIANCE ........................................................................................................................................ 5-14
6.
6.1 PURCHASED OR IMPORTED WATER ....................................................................................................................... 6-1
6.2 GROUNDWATER ................................................................................................................................................ 6-1
6.2.1 Basin Description...................................................................................................................................... 6-1
6.2.1.1 Groundwater Basin .......................................................................................................................................... 6-1
6.2.1.2 Basin Boundaries.............................................................................................................................................. 6-3
6.2.1.3 Groundwater Quality ....................................................................................................................................... 6-3
6.2.2 Groundwater Management ..................................................................................................................... 6-4
6.2.2.1 Groundwater Management Plan ..................................................................................................................... 6-4
6.2.2.2 Integrated Water Resource Plan...................................................................................................................... 6-5
6.2.3 Overdraft Conditions................................................................................................................................ 6-5
6.2.4 Historical Groundwater Pumping............................................................................................................. 6-6
6.3 S URFACE WATER............................................................................................................................................... 6-6
6.4 S TORMWATER .................................................................................................................................................. 6-6
6.5 WASTEWATER AND R ECYCLED W ATER ................................................................................................................... 6-6
6.5.1 Recycled Water Coordination................................................................................................................... 6-8
6.5.2 Wastewater Collection, Treatment, and Disposal.................................................................................... 6-8
6.5.2.1 Wastewater Collected Within Service Area ..................................................................................................... 6-8
6.5.2.2 Wastewater Treatment and Discharge Within Service Area............................................................................ 6-9
6.5.3 Recycled Water System............................................................................................................................ 6-9
6.5.4 Recycled Water Beneficial Uses ............................................................................................................. 6-10
6.5.4.1 Current and Planned Uses of Recycled Water ............................................................................................... 6-10
6.5.4.2 Planned Versus Actual Use of Recycled Water .............................................................................................. 6-12
6.5.5 Actions to Encourage and Optimize Future Recycled Water Use........................................................... 6-13
6.6 DESALINATED W ATER OPPORTUNITIES ................................................................................................................ 6-14
6.7 E XCHANGES OR TRANSFERS ............................................................................................................................... 6-14
6.8 F UTURE WATER PROJECTS ................................................................................................................................ 6-14
6.9 S UMMARY OF E XISTING AND PLANNED S OURCES OF WATER.................................................................................... 6-15
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7.1 CONSTRAINTS ON W ATER SOURCES ...................................................................................................................... 7-1
7.1.1 Legal Factors ............................................................................................................................................ 7-1
7.1.2 Environmental Factors ............................................................................................................................. 7-1
7.1.3 Water Quality Factors .............................................................................................................................. 7-1
7.1.4 Climatic Factors........................................................................................................................................ 7-2
7.2 R ELIABILITY BY T YPE OF Y EAR ............................................................................................................................... 7-2
7.2.1 Types of Years .......................................................................................................................................... 7-2
7.2.2 Sources for Water Data............................................................................................................................ 7-3
7.3 S UPPLY AND DEMAND A SSESEMENT ..................................................................................................................... 7-3