Urban Water Management Plan 2015

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August 2016 i City of Morgan Hill
2015 Urban Water Management Plan
City of Morgan Hill
2015 Urban Water Management Plan
Table of Contents Page No.
1.
1.1 B ACKGROUND AND PURPOSE............................................................................................................................... 1-1
1.2 URBAN WATER MANAGEMENT PLANNING AND THE CALIFORNIA WATER CODE ............................................................ 1-1
1.3 URBAN WATER MANAGEMENT PLANS IN RELATION TO OTHER PLANNING E FFORTS....................................................... 1-3
1.4 R EPORT ORGANIZATION ..................................................................................................................................... 1-3
1.5 PUBLIC PARTICIPATION AND PLAN ADOPTION ......................................................................................................... 1-4
1.6 UWMP S AND GRANT OR LOAN E LIGIBILITY ........................................................................................................... 1-5
1.7 PREVIOUS URBAN WATER MANAGEMENT PLANS..................................................................................................... 1-5
2.
2.1 B ASIS FOR PREPARING A PLAN ............................................................................................................................. 2-1
2.2 R EGIONAL PLANNING ......................................................................................................................................... 2-1
2.3 INDIVIDUAL OR REGIONAL PLANNING AND COMPLIANCE ........................................................................................... 2-2
2.4 F ISCAL OR CALENDAR Y EAR AND UNITS OF MEASURE ............................................................................................... 2-2
2.5 COORDINATION AND OUTREACH .......................................................................................................................... 2-2
3.0
3.1 GENERAL DESCRIPTION....................................................................................................................................... 3-1
3.1.1 Location.................................................................................................................................................... 3-1
3.1.2 Water Service Area................................................................................................................................... 3-1
3.1.3 Land Use................................................................................................................................................... 3-1
3.2 CLIMATE DATA ................................................................................................................................................. 3-1
3.3 S ERVICE AREA POPULATION AND DEMOGRAPHICS ................................................................................................... 3-3
4.
4.1 R ECYCLED VERSUS POTABLE AND RAW WATER DEMAND .......................................................................................... 4-1
4.2 WATER USES BY SECTOR..................................................................................................................................... 4-1
4.2.1 Historical Water Use ................................................................................................................................ 4-1
4.2.2 Projected Water Use ................................................................................................................................ 4-2
4.2.3 Maximum Day Demand ........................................................................................................................... 4-5
4.3 DISTRIBUTIONS SYSTEM W ATER LOSSES ................................................................................................................ 4-5
4.4 E STIMATING FUTURE WATER S AVINGS .................................................................................................................. 4-6
4.5 WATER USE FOR LOWER INCOME HOUSEHOLDS...................................................................................................... 4-7
4.6 CLIMATE CHANGE.............................................................................................................................................. 4-7
5.0
5.1 2010 UWMP BASELINE AND TARGETS................................................................................................................. 5-1
5.2 UPDATING C ALCULATIONS FROM THE 2010 UWMP ............................................................................................... 5-2
5.2.1 Update of Target Method ........................................................................................................................ 5-2
5.2.2 Required Use of 2010 U.S. Census Data ................................................................................................... 5-2
5.3 B ASELINE PERIODS............................................................................................................................................. 5-3
5.3.1 Determination of the 10-15 Year Baseline Period (Baseline GPCD) ......................................................... 5-3
5.3.2 Determination of the 5-year Baseline Period (Target Confirmation) ....................................................... 5-4
5.4 S ERVICE AREA POPULATION ................................................................................................................................ 5-5