Useful Tools For Water Conservation:
Water Budgets
Jeff Barnes, CLIA
Water Conservation Specialist

Water Budget: Definition
Simple Definition:
Maximum Water Allowed On A Given Site
State Standards:
Beneficial Water Use
No More Than Needed

Water Budget: Definition
RAINFALL
AREA

Water Budget: Calculation
( 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
Example 748
= 350 HCF (July/August in El Cajon)

WATERSMART TARGET: LANDSCAPE AREA MEASUREMENT

WATERSMART TARGET REPORT: PERFORMANCE TRACKING

Water Budgets: Benefits
SITE AGENCY
PROMOTE GOOD WATER MANAGEMENT
ID FAIR
Potential Rate Structure
Site Savings Model/Basis
Good Useful/Fair
Performance Allocation
Gauge Tool
Customer ID
Communication Water Conservation
Tool Goals

Jeff Barnes, CLIA
Water Conservation Specialist
(619) 667‐6202
jeff.barnes@helixwater.org