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Uses of Recycled Water
Allowed in California
This summary1 was prepared by the WateReuse
Association, from the September 1998 draft of proposed Title-22
revisions and supersedes previous versions. Recycled water produced by
South Bay Water Recycling meets disinfected tertiary treatment
levels highlighted in the tables below.
|
Treatment Levels |
| Irrigation |
Disinfected Tertiary Recycled
Water |
Disinfected Secondary-2.2
Recycled Water |
Disinfected Secondary-23
Recycled Water |
Undisinfected Secondary
Recycled Water |
| Food
crops where recycled water contacts the edible portion of the crop,
including all root crops |
Allowed |
Not allowed |
Not allowed |
Not allowed |
| Parks
and playgrounds |
Allowed |
Not allowed |
Not allowed |
Not allowed |
| School
yards |
Allowed |
Not allowed |
Not allowed |
Not allowed |
| Residential
landscaping |
Allowed |
Not allowed |
Not allowed |
Not allowed |
| Unrestricted
access golf courses |
Allowed |
Not allowed |
Not allowed |
Not allowed |
| Any
other irrigation uses not prohibited by other provisions of the
California Code of Regulations |
Allowed |
Not allowed |
Not allowed |
Not allowed |
| Food
crops where edible portion is produced above ground and not contacted
by recycled water |
Allowed |
Allowed |
Not allowed |
Not allowed |
| Cemeteries |
Allowed |
Allowed |
Allowed |
Not allowed |
| Freeway
landscaping |
Allowed |
Allowed |
Allowed |
Not allowed |
| Restricted
access golf courses |
Allowed |
Allowed |
Allowed |
Not allowed |
| Ornamental
nursery stock and sod farms |
Allowed |
Allowed |
Allowed |
Not allowed |
| Pasture
for milk animals |
Allowed |
Allowed |
Allowed |
Not allowed |
| Nonedible
vegetation with access control to prevent use as a park, playground
or school yard |
Allowed |
Allowed |
Allowed |
Not allowed |
| Orchards
with no contact between edible portion and recycled water |
Allowed |
Allowed |
Allowed |
Allowed |
| Vineyards
with no contact between edible portion and recycled water |
Allowed |
Allowed |
Allowed |
Allowed |
| Non
food-bearing trees, including Christmas trees not irrigated less
than 14 days before harvest |
Allowed |
Allowed |
Allowed |
Allowed |
| Fodder
crops (e.g. alfalfa) and fiber crops (e.g. cotton) |
Allowed |
Allowed |
Allowed |
Allowed |
| Seed
crops not eaten by humans |
Allowed |
Allowed |
Allowed |
Allowed |
| Food
crops that undergo commercial pathogen-destroying processing before
consumption by humans |
Allowed |
Allowed |
Allowed |
Allowed |
| Ornamental
nursery stock, sod farms not irrigated less than 14 days before
harvest |
Allowed |
Allowed |
Allowed |
Allowed |
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|
Treatment Levels |
| Supply
for Impoundment |
Disinfected Tertiary Recycled Water |
Disinfected Secondary-2.2 Recycled Water |
Disinfected Secondary-23 Recycled Water |
Undisinfected Secondary Recycled Water |
| Non-restricted
recreational impoundments, with supplemental monitoring for pathogenic
organisms |
|
Not allowed |
Not allowed |
Not allowed |
| Restricted
recreational impoundments and publicly accessible fish hatcheries |
Allowed |
Allowed |
Not allowed |
Not allowed |
| Landscape
impoundments without decorative fountains |
Allowed |
Allowed |
Allowed |
Not allowed |
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|
Treatment Levels |
| Supply
for Cooling or Air Conditioning |
Disinfected Tertiary Recycled Water |
Disinfected Secondary-2.2 Recycled Water |
Disinfected Secondary-23 Recycled Water |
Undisinfected Secondary Recycled Water |
| Industrial
or commercial cooling or air conditioning involving cooling tower,
evaporative condenser, or spraying that creates a mist |
Allowed 3 |
Not allowed |
Not allowed |
Not allowed |
| Industrial
or commercial cooling or air conditioning not involving a cooling
tower, evaporative condenser, or spraying that creates a mist |
Allowed |
Allowed |
Allowed |
Not allowed |
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|
Treatment Levels |
| Other
Uses |
Disinfected Tertiary Recycled Water |
Disinfected Secondary-2.2 Recycled Water |
Disinfected Secondary-23 Recycled Water |
Undisinfected Secondary Recycled Water |
| Groundwater
recharge |
Allowed under special case-by-case permits
by RWQCBs
4 |
| Flushing
toilets and urinals |
Allowed |
Not
allowed |
Not
allowed |
Not
allowed |
| Priming
drain traps |
Allowed |
Not
allowed |
Not
allowed |
Not
allowed |
| Industrial
process water that may contact workers |
Allowed |
Not
allowed |
Not
allowed |
Not
allowed |
| Structural
fire fighting |
Allowed |
Not
allowed |
Not
allowed |
Not
allowed |
| Decorative
fountains |
Allowed |
Not
allowed |
Not
allowed |
Not
allowed |
| Commercial
laundries |
Allowed |
Not
allowed |
Not
allowed |
Not
allowed |
| Consolidation
of backfill material around potable water pipelines |
Allowed |
Not
allowed |
Not
allowed |
Not
allowed |
| Artificial
snow making for commercial outdoor uses |
Allowed |
Not
allowed |
Not
allowed |
Not
allowed |
| Commercial
car washes |
Allowed |
Not
allowed |
Not
allowed |
Not
allowed |
| Industrial
boiler feed |
Allowed |
Allowed |
Allowed |
Not
allowed |
| Nonstructural
fire fighting |
Allowed |
Allowed |
Allowed |
Not
allowed |
| Backfill
consolidation around nonpotable piping |
Allowed |
Allowed |
Allowed |
Not
allowed |
| Soil
compaction |
Allowed |
Allowed |
Allowed |
Not
allowed |
| Mixing
concrete |
Allowed |
Allowed |
Allowed |
Not
allowed |
| Dust
control on roads and streets |
Allowed |
Allowed |
Allowed |
Not
allowed |
| Cleaning
roads, sidewalks and outdoor work areas |
Allowed |
Allowed |
Allowed |
Not
allowed |
| Flushing
sanitary sewers |
Allowed |
Allowed |
Allowed |
Allowed |
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1 Refer to the full text
of the latest version of Title-22:
California Water Recycling Criteria.
2
With "conventional tertiary treatment." Additional monitoring
for two years or more is necessary with direct filtration.
3 Drift Eliminators and/or biocides are required
if public or employees can be exposed to mist.
4 Refer to Groundwater Recharge Guidelines, California Department of Health Services.
Updated: 11-4-08 |
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