Useful Tools For Water Conservation:Water Budgets - Helix

Jeff Barnes, CLIAWater Conservation Specialist

Useful Tools For Water Conservation: Water Budgets

Water Budget: Definition

Simple Definition:

Maximum Water Allowed On A Given Site

State Standards:

Beneficial Water Use

No More Than Needed

Water Budget: Definition

AREA

RAINFALL

Water Budget: Calculation

Example

( Landscape Area x ( ETo x ET adj )) x 0.623 748

= Water Budget in HCF

( 43,560 sf x ( 13.8 x 0.7 )) x 0.623 748

= 350 HCF (July/August in El Cajon)

WATERSMART TARGET: LANDSCAPE AREA MEASUREMENT

WATERSMART TARGET REPORT: PERFORMANCE TRACKING

Water Budgets: Benefits

FAIRRate Structure Model/Basis

Good Performance 

Gauge

ID PotentialSite Savings

Useful/Fair Allocation

Tool

SITE AGENCYPROMOTE G

OOD W

ATER M

ANAGEM

ENT

ID Water Conservation 

Goals

CustomerCommunication

Tool

Jeff Barnes, CLIAWater Conservation Specialist

(619) 667‐6202 jeff.barnes@helixwater.org