Plumbing and Toilets

• Plumbing Care and Handbook
• Toilet Testing Website
• Toiletology 101
  
  

Garden Information

• Ruth Bancroft Garden website
• The Gardens of Heather Farms
  
• Markham Arboretum in Concord
• UC Davis Arboretum
• Xeriscape
• Water Conservation Garden, San Diego, California
• Sunset magazine's Idea Gardens — Los Angeles, California Arboretum
• Mediterranean Climate Gardening
• California Native Plant Society
• Be Water-Wise, tips on gardening efficiently
• Guide to landscaping in a water-saving manner
• "Guide to Estimating Irrigation Water Needs," including a complete guide to California plants

Irrigation Sources

• Irrigation Association
• Irrigation and Green Industry Network
• "Guide to Estimating Irrigation Water Needs," including a complete guide to California plants
• Irrigating the Home Landscape

Swimming Pools

• National Spa Pool Industry [NSPI]
• Tips for your Pool

Other Utilities

• EBMUD's water conservation website
• CIMIS
• Water Education Foundation
• Metropolitan Water District of Southern California
• San Diego County Water Authority Conservation
• Santa Clara Valley Water District Conservation
• American Water Works Association
• Irvine Ranch Water District
• Seattle Public Utilities
• PG&E