Compliance Report

State of California • MWELO Title 23
MWELO.org
ID: #99482-X • JAN 14 2026
Project Overview
Site Details
Project Name
Smith Backyard Renovation
Address
1234 Dublin Blvd
Dublin, CA 94568
APN
941-1234-001
Supply
Potable
Applicant
Name / Company
Tony's Landscape Services
License No.
C-27 987654
Total Landscape Area
3,000 SQ. FT.
Mandatory Declaration

"I agree to comply with the requirements of the Water Efficient Landscape Ordinance (MWELO) and submit a complete Landscape Documentation Package."

Signature of Applicant
Date
MWELO.org
Hydrozone Table
Reference ETo
Dublin, CA (45.3 in)
Hydrozone / Description PF Irrigation IE ETAF Area (sf) ETAF × Area ETWU (gal)
Zone 1: Front Lawn
High
 0.80 Rotor (MP) 0.80 1.00 300 300.0 8,426
Zone 2: Shrubs
Moderate
 0.50 Drip 0.81 0.62 800 493.8 13,870
Zone 3: Native
Low
 0.20 Drip 0.81 0.25 1,400 345.7 9,710
Zone 4: Edibles (SLA)
High
 1.00 Drip 0.81 1.23 500 617.3 17,337
Project Totals 3,000 1,756.8 49,343
Calculations:
ETAF = (PF / IE)
ETWU = (ETo × 0.62 × ETAF × Area)
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Water Budget Calculations
Equations Used
MAWA (Maximum Allowance)
MAWA = (ETo) × (0.62) × [(ETAF × LA) + ((1-ETAF) × SLA)]
ETWU (Estimated Use)
ETWU = (ETo) × (0.62) × Σ(PF × Area / IE)
Allowed Budget (MAWA)
52,661
Gallons / Year
Estimated Use (ETWU)
49,343
Gallons / Year
Budget Utilization
0 Gal Used: 49,343 Limit: 52,661

COMPLIANT

This design is 6.3% under the maximum water budget.

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Certificate of Completion
Instructions

This document must be filled out by the installer AFTER the project is installed. Do not sign this until the irrigation system is operational.

Statement of Installation

"I hereby certify that the landscape project has been installed per the approved plans and specifications, and complies with the Water Efficient Landscape Ordinance."

Required Attachments
Irrigation Scheduling Parameters
Maintenance Schedule
Soil Management Report
Signature of Installer
Date
Company Name
MWELO.org
Water Efficient Landscape Worksheet
Appendix B Format
Reference ETo: 45.3
Project Applicant must fill this worksheet.
Hydrozone # /
Description		 Plant
Factor (PF)		 Irrigation
Method		 Irrig.
Eff. (IE)		 ETAF
(PF/IE)		 Landscape
Area (SF)		 ETAF x
Area		 Est. Total Water
Use (ETWU)
Regular Landscape Areas
1 - Front Lawn 0.80 Spray 0.80 1.00 300 300.0 8,426
2 - Shrubs 0.50 Drip 0.81 0.62 800 493.8 13,870
3 - Native 0.20 Drip 0.81 0.25 1,400 345.7 9,710
Totals 2,500 (A) 1,139.5 (B)
Special Landscape Areas (SLA)
4 - Edible Garden 1.00 Drip 0.81 1.23 500 617.3 17,337
Totals 500 (C) 617.3 (D)
Total ETWU 49,343
Maximum Allowed Water Allowance (MAWA) 52,661
ETAF Calculations
Regular Landscape Areas
Total ETAF x Area (B) 1,139.5
Total Area (A) 2,500
Average ETAF (B ÷ A) 0.46
All Landscape Areas
Total ETAF x Area (B+D) 1,756.8
Total Area (A+C) 3,000
Sitewide ETAF (B+D) ÷ (A+C) 0.59
Formulas
MAWA (Annual Gallons Allowed)
(ETo)(0.62)[(ETAF × LA) + ((1-ETAF) × SLA)]
ETWU (Annual Gallons Required)
ETo × 0.62 × ETAF × Area
*0.62 is a conversion factor that converts acre-inches per acre per year to gallons per square foot per year.
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