We Turn it into Recycled Water
And use it in a variety of ways



The California State Water Resources Control Board governs the permitting of recycled water projects and develops uniform water recycling criteria. State discharge standards for recycled water and its reuse are regulated by the State Water Resources Control Board’s 2019 Water Recycling Policy.

As part of its long term planning, the state of California aims to increase the production and use of recycled water across the nearly 700 wastewater treatment facilities in the state.

Title 22 of California’s Code of Regulations refers to state guidelines for how treated and recycled water is discharged and used. Title 22 lists specific uses allowed for different types of recycled water. Look below for examples of how Californians are currently using recycled water.

Water Environment Federation: Water Recycling and Title 22


Recycled Water Uses:

There are different kinds of recycled water. For simplicity, we have organized its various uses. For a full breakdown of the allowable uses for each kind of treated effluent, check out specific uses

Irrigation Of:
  • Parks and playgrounds
  • School yards
  • Residential landscaping
  • Golf courses
  • Cemeteries
  • Freeway landscaping
  • Industrial or commercial cooling or air conditioning
Food (Need to Organize)
  • Some Food Crops
  • Food crops, surface-irrigated, above-ground edible portion, and not contacted by recycled water
  • Food crops where recycled water contacts the edible portion of the crop, including all root crops
  • Food crops undergoing commercial pathogen destroying processing before consumption by humans
  • Ornamental nursery stock and sod farms with unrestricted public access
  • Ornamental nursery stock, sod farms not irrigated less than 14 day before harvest
  • Non-edible vegetation with access control to prevent use as a park, playground or school yard
  • Irrigating the root systems of Orchards, Vineyards
  • Orchards with no contact between edible portion and recycled water
  • Vineyards with no contact between edible portion and recycled water
  • Non food-bearing trees, including Christmas trees not irrigated less than 14 days before harvest 
  • Pasture for milk animals for human consumption
  • Fodder and fiber crops and pasture for animals not producing milk for human consumption
  • Seed crops not eaten by humans
  • Any other irrigation uses not prohibited by other provisions of the California Code of Regulations
Supply for impoundment (human made lakes, water bodies):
  • Non-restricted recreational impoundments, with supplemental monitoring for pathogenic organisms 
  • Restricted recreational impoundments and publicly accessible fish hatcheries
  • Landscape impoundments without decorative fountains


Other Uses
  • Flushing toilets and urinals
  • Priming drain traps
  • Flushing sanitary sewers
  • Fire fighting 
  • Decorative fountains
  • Artificial snow making
  • Commercial laundries
  • Commercial car washes
  • Industrial processes water


  • Consolidation of backfill material around potable water pipelines
  • Backfill consolidation around non-potable piping
  • Soil compaction
  • Mixing concrete
  • Dust control on roads and streets
  • Cleaning roads, sidewalks, and outdoor work areas