| City of Santa Clara General Guidelines for Recycled
Water Use |
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| The following guidelines are provided by the
City of Santa Clara for assistance in the correct use of recycled
water. These are derived from requirements enacted by the San
Francisco Bay Regional Water Quality Control Board and from
State regulations (Department of Health Services (Title 22).
These guidelines are intended to provide the basic requirements
for use of recycled water for landscape irrigation. Additional
information is included in the Water Department Rules and Regulations
which are available upon request. To operate your system in
compliance with current regulations, at a minimum you must:
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| Provide Notice To The Public |
| Conspicuous notification signs must be posted
at adequate intervals around the area to insure people know
recycled water is being used to irrigate the landscape and this
water is not potable. Signs should state "RECYCLED
WATER" and include the statement: "RECYCLED WATER " in English and Spanish.
Additional signage may be required in certain circumstances. |
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| Equipment Labels, Signs And Notice |
PIPE: All buried
piping supplied with recycled water and continuously under
pressure shall be marked with warning tape or with stenciled
lettering to identify it as carrying recycled water. On new
construction, the irrigation system piping beyond the control
valves shall also be labeled. Warning tape shall be 3"
wide and shall have the words "CAUTION:
RECYCLED WATER LINE" printed in black on a purple background color. Stenciled pipe shall be
tinted purple and shall be marked "Do Not Drink " in 5/8" minimum letters, repeated
every 12" (pre-stenciled purple PVC pipe is commercially
available).
All above grade piping and/or pumping appurtenances shall
be colored purple and shall be labeled with the words
"RECYCLED WATER". |
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| Irrigation System Valves And Controllers |
| All irrigation system controllers shall have
warning labels installed as supplied by the Water Department.
All irrigation system valves (gate, manual control, electric
control, pressure reducing, and/or pressure relief) shall be
installed in boxes below grade and shall have labels or tags
permanently affixed with the words "RECYCLED
WATER". No hose bibs are allowed connected to a
recycled water system. Irrigation hose connections are allowed
via a "quick connect" coupling if installed within
a below-grade box or other enclosure and provided with proper
warning labels. |
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| Use Of Potable Water |
Any property where recycled water is used shall
have an approved back-flow device installed on the potable water
service. If recycled water is to be supplemented with potable
water, there must be an air gap separation at all times between
the recycled water and potable water supplies.
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| Separation Between Water, Sewer And Recycled
Water Pipes |
For recycled water mains located in a public
right-of-way there must be a ten (10) foot separation for each
between water, sewer and recycled water mains. For a description
of alternatives see Water Department Standard Drawing W-2550-2.
On-site separation requires recycled piping to be four (4) feet
away from potable piping when parallel and one (1) foot lower
than potable water piping where they cross.
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| Public Contact And Approved Application Areas |
- Public contact shall be minimized by proper design of
irrigation system to prevent run-off, excessive ponding,
over-spray or wind drift of irrigation water to areas where
it is not permitted or not under control of the owner.
- Recycled water shall not be applied to public access sidewalks,
roadways, passing vehicles, drinking water facilities or
enter areas where food is handled or eaten.
- Irrigation shall be scheduled to be applied at night,
between the hours of 9 pm and 6 am.
- Any day-time use of recycled water (between the hours
of 6 am and 9 pm) shall be under direct control and observation
by an individual familiar with these regulations.
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| New Development/Retrofit Requirements |
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| [ More Links ] |
Recycled Water
Recycled
Water Rates |
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