California Greywater Compliance Guide

📑 Table of Contents

📋 State-Level Regulations (Applies Statewide)

This state follows standard plumbing codes. Check with local jurisdictions for specific requirements.

Los Angeles County

County Website • 626-458-4357
15 major cities
6.2M population
County/Water District Incentives
1 active program:
  • Turf Replacement + Greywater Integration Rebate
💧 Water Districts Serving Los Angeles County (2)
Pasadena Water and Power
1 Active Program:
Visit Website • 626-744-4005
15 Major Cities in Los Angeles County:
Los Angeles Pop: 3899k Incentive
Follows county/state regulations
Programs: LADWP Flow Monitoring Device Rebate; LADWP Greywater System Rebate Program; LADWP Rain Barrel Rebate Program; LADWP Smart Hose Bib Controller Rebate; LADWP Turf Replacement Rebate - Enhanced; LADWP Turf Replacement Rebate Program; MWD SoCal Water$mart Turf Replacement
Contact: City Website
Long Beach Pop: 467k Incentive
Follows county/state regulations
Programs: MWD SoCal Water$mart Turf Replacement
Contact: City Website
Santa Clarita Pop: 229k Incentive
Follows county/state regulations
Programs: MWD SoCal Water$mart Turf Replacement
Contact: City Website
Glendale Pop: 197k Permit Incentive
Follows county/state regulations
Permit: $275 (14 days)
Programs: Glendale Water & Power Laundry-to-Landscape Rebate; MWD SoCal Water$mart Turf Replacement
Contact: City Website
Lancaster Pop: 174k Permit Incentive
Follows county/state regulations
Permit: $275 (14 days)
Programs: MWD SoCal Water$mart Turf Replacement
Contact: City Website
Palmdale Pop: 169k Permit Incentive
Follows county/state regulations
Permit: $275 (14 days)
Programs: MWD SoCal Water$mart Turf Replacement
Contact: City Website
Pomona Pop: 152k Permit Incentive
Follows county/state regulations
Permit: $275 (14 days)
Programs: MWD SoCal Water$mart Turf Replacement
Contact: City Website
Torrance Pop: 147k Permit Incentive
Follows county/state regulations
Permit: $275 (14 days)
Programs: MWD SoCal Water$mart Turf Replacement
Contact: City Website
Pasadena Pop: 139k Permit Incentive
Follows county/state regulations
Permit: $275 (14 days)
Programs: FREE Laundry-to-Landscape Installation Program; Pasadena Greywater System Rebate; MWD SoCal Water$mart Turf Replacement
Contact: City Website
East Los Angeles Pop: 119k Permit Incentive
Follows county/state regulations
Permit: $275 (14 days)
Programs: MWD SoCal Water$mart Turf Replacement
Contact: City Website
Downey Pop: 111k Permit Incentive
Follows county/state regulations
Permit: $275 (14 days)
Programs: MWD SoCal Water$mart Turf Replacement
Contact: City Website
El Monte Pop: 109k Permit Incentive
Follows county/state regulations
Permit: $275 (14 days)
Programs: MWD SoCal Water$mart Turf Replacement
Contact: City Website
Inglewood Pop: 109k Permit Incentive
Follows county/state regulations
Permit: $275 (14 days)
Programs: MWD SoCal Water$mart Turf Replacement
Contact: City Website
West Covina Pop: 105k Permit Incentive
Follows county/state regulations
Permit: $275 (14 days)
Programs: MWD SoCal Water$mart Turf Replacement
Contact: City Website
Norwalk Pop: 103k Permit Incentive
Follows county/state regulations
Permit: $275 (14 days)
Programs: MWD SoCal Water$mart Turf Replacement; City of Norwalk Municipal Water Meter Upgrade Program
Contact: City Website

San Diego County

County Website • Contact via website
7 major cities
2.3M population
County/Water District Incentives
8 active programs:
  • Helix Water District Turf Replacement Rebate
  • Olivenhain MWD Smart Irrigation Controller Rebate
  • Otay Water District Conservation Rebate Program
  • Padre Dam Landscape Transformation Program
  • Vallecitos Water District Turf Replacement
  • San Diego Greywater Laundry System Rebate (No Permit)
  • San Diego Rain Barrel/Cistern Rebate (City)
  • San Diego Greywater Permit System Rebate
💧 Water Districts Serving San Diego County (7)
Helix Water District
1 Active Program:
Visit Website
Olivenhain Municipal Water District
1 Active Program:
Visit Website
Otay Water District
1 Active Program:
Visit Website
Padre Dam Municipal Water District
1 Active Program:
Visit Website
Vallecitos Water District
1 Active Program:
Visit Website
7 Major Cities in San Diego County:
San Diego Pop: 1387k Incentive
Follows county/state regulations
Programs: San Diego Greywater System Rebate
Contact: City Website
Chula Vista Pop: 275k
Follows county/state regulations
Contact: City Website
Oceanside Pop: 174k Incentive
Follows county/state regulations
Programs: City of Oceanside Turf Replacement Rebate and Biogas Expansion Project
Contact: City Website
Escondido Pop: 151k
Follows county/state regulations
Contact: City Website
Carlsbad Pop: 115k
Follows county/state regulations
Contact: City Website
El Cajon Pop: 105k
Follows county/state regulations
Contact: City Website
Vista Pop: 102k
Follows county/state regulations
Contact: City Website

Orange County

County Website • Contact via website
7 major cities
1.4M population
County/Water District Incentives
7 active programs:
  • IRWD Weather-Based Irrigation Controller Rebate
  • IRWD Turf Removal Rebate Program
  • Municipal Water District of Orange County Greywater Rebate
  • MWDOC Spray-to-Drip Conversion Program
  • Moulton Niguel Water District Advanced Metering Infrastructure (AMI) Project
  • Moulton Niguel Water District Commercial and HOA Landscape Water Use Efficiency Program
  • Municipal Water District of Orange County Sustainable Landscapes Program (Phase 2)
💧 Water Districts Serving Orange County (3)
7 Major Cities in Orange County:
Santa Ana Pop: 310k
Follows county/state regulations
Contact: City Website
Irvine Pop: 308k
Follows county/state regulations
Contact: City Website
Huntington Beach Pop: 199k
Follows county/state regulations
Contact: City Website
Garden Grove Pop: 173k
Follows county/state regulations
Contact: City Website
Fullerton Pop: 144k
Follows county/state regulations
Contact: City Website
Orange Pop: 140k
Follows county/state regulations
Contact: City Website
Costa Mesa Pop: 112k
Follows county/state regulations
Contact: City Website

Santa Clara County

County Website • Contact via website
3 major cities
1.3M population
County/Water District Incentives
4 active programs:
  • Valley Water Graywater Rebate Program
  • Valley Water District Greywater Rebate Program
  • Valley Water Irrigation Equipment Upgrade Program
  • Valley Water Enhanced Graywater Rebate Program
💧 Water Districts Serving Santa Clara County (2)
3 Major Cities in Santa Clara County:
San Jose Pop: 1013k
Follows county/state regulations
Contact: City Website
Sunnyvale Pop: 156k
Follows county/state regulations
Contact: City Website
Santa Clara Pop: 128k
Follows county/state regulations
Contact: City Website

Riverside County

County Website • Contact via website
7 major cities
1.1M population
County/Water District Incentives
5 active programs:
  • CVWD Desert Turf Buyback Program
  • EMWD Residential Greywater System Rebate
  • EMWD Turf Replacement Program
  • RCWD Agricultural and Landscape Efficiency Program
  • Western MWD Water Use Efficiency Rebates
💧 Water Districts Serving Riverside County (5)
Eastern Municipal Water District
2 Active Programs:
Visit Website
Coachella Valley Water District
1 Active Program:
Visit Website
Rancho California Water District
1 Active Program:
Visit Website
Western Municipal Water District
1 Active Program:
Visit Website
7 Major Cities in Riverside County:
Riverside Pop: 315k Incentive
Follows county/state regulations
Programs: Riverside Public Utilities Water Conservation Rebates
Contact: City Website
Moreno Valley Pop: 209k
Follows county/state regulations
Contact: City Website
Corona Pop: 157k Incentive
Follows county/state regulations
Programs: Corona Department of Water & Power Conservation Rebates
Contact: City Website
Murrieta Pop: 115k
Follows county/state regulations
Contact: City Website
Jurupa Valley Pop: 111k
Follows county/state regulations
Contact: City Website
Temecula Pop: 110k
Follows county/state regulations
Contact: City Website
Menifee Pop: 103k
Follows county/state regulations
Contact: City Website

San Bernardino County

County Website • Contact via website
6 major cities
1.0M population
County/Water District Incentives
1 active program:
  • CVWD Turf Replacement Program
💧 Water Districts Serving San Bernardino County (2)
Cucamonga Valley Water District
1 Active Program:
Visit Website
6 Major Cities in San Bernardino County:
San Bernardino Pop: 222k Incentive
Follows county/state regulations
Programs: San Bernardino Water Conservation Rebate Program
Contact: City Website
Fontana Pop: 215k
Follows county/state regulations
Contact: City Website
Rancho Cucamonga Pop: 178k
Follows county/state regulations
Contact: City Website
Ontario Pop: 175k Incentive
Follows county/state regulations
Programs: Ontario Municipal Utilities Water Efficiency Program
Contact: City Website
Victorville Pop: 135k
Follows county/state regulations
Contact: City Website
Rialto Pop: 104k
Follows county/state regulations
Contact: City Website

Alameda County

County Website • Contact via website
3 major cities
0.8M population
County/Water District Incentives
4 active programs:
  • EBMUD Spray to Drip Irrigation Conversion
  • EBMUD Greywater Assistance Program
  • EBMUD Laundry-to-Landscape Graywater Rebate
  • East Bay MUD Laundry-to-Landscape and Lawn-to-Garden Rebate Programs
💧 Water Districts Serving Alameda County (2)
3 Major Cities in Alameda County:
Oakland Pop: 441k
Follows county/state regulations
Contact: City Website
Fremont Pop: 231k
Follows county/state regulations
Contact: City Website
Hayward Pop: 163k
Follows county/state regulations
Contact: City Website