Urban Water Management Plan 2015

August 2016

7-4

City of Morgan Hill

2015 Urban Water Management Plan

These potential water use increases can be offset, in part, by increasing water conservation

measures.

The supply available to the City during the various hydrologic water years, summarized in

Table

7-1

, is assumed to be equal to the estimated rate of natural groundwater recharge, recycled water

consumption for users in the City of Gilroy, and the raw and surface water deliveries managed

and negotiated by SCVWD. The SCVWD 2015 UWMP estimates the percent of normal year

supply available during the single dry and multiple dry water years; these percentages are applied

to rate of recharge during the normal water year to determine the available supply during the

single dry and multiple dry water years.

The demand projections for the various hydrologic water years are summarized on the following

pages in

Table 7-2

Table 7-3

, and

Table 7-4

. These tables include the total projected water

demands through 2040, and estimates for total estimated water supply based on the hydrologic

water years. A water budget, as derived from SCVWD groundwater planning estimates, has been

included for the Llagas subbasin and Coyote Valley subarea respectively on

Table 7-2A

and

Table 7-2B

. These tables document the estimated total supply and demand during normal water

years.

Table 7-2 Normal Year Supply and Demand Comparison

2020

2025

2030

2035

2040

(AF)

Supply

63,900 67,800 71,500 73,300 73,400

Demand

61,765 65,542 69,468 72,811 74,068

Difference

2,135 2,258 2,032

489

-668