Urban Water Management Plan 2015

Table 7-3 Single Dry Year Supply and Demand Comparison

2020

2025

2030

2035

2040

(AF)

(AF)

(AF)

(AF)

(AF)

Supply

60,705 60,705 60,705 60,705 60,705 61,765 65,542 69,468 72,811 74,068

Demand

Difference

-1,060

-4,837

-8,763

-12,106 -13,363

Table 7-4 Multiple Dry Years Supply and Demand Comparison

2020

2025

2030

2035

2040

(AF)

(AF)

(AF)

(AF)

(AF)

Supply

60,705 61,765 -1,060 54,315 61,765 -7,450 41,535 61,765

60,705 65,542 -4,837 54,315 65,542

60,705 69,468 -8,763 54,315 69,468

60,705 72,811

60,705 74,068

First year (2013)

Demand

Difference

-12,106 -13,363

Supply

54,315 72,811

54,315 74,068

Second year (2014)

Demand

Difference

-11,227 -15,153 -18,496 -19,753

Supply

41,535 65,542

41,535 69,468

41,535 72,811

41,535 74,068

Third year (2015)

Demand

Difference

-20,230 -24,007 -27,933 -31,276 -32,533

7.4 REGIONAL SUPPLY RELIABILITY Law

As discussed previously, the City uses groundwater as its sole source of supply. In order to reduce the burden on groundwater resources during periods of prolonged drought, the City has water conservation ordinances that can be implemented to prevent and prohibit the wasting of water, while also encouraging the community to conserve. The City’s supply reliability is dependent on the rate of available recharge for the groundwater subbasins beneath the City. SCVWD imports raw water through the State Water Project and federal Central Valley Project for the purpose of recharging the groundwater subbasins they 10620 (f) An urban water supplier shall describe in the plan water management tools and options used by that entity that will maximize resources and minimize the need to import water from other regions.

August 2016

7-7

City of Morgan Hill 2015 Urban Water Management Plan