CA Water Code Section 10951

An in-bay car wash or a conveyor car wash permitted and constructed after January 1, 2014, shall do either of the following:

(a)

Install, use, and maintain a water recycling system that recycles and reuses at least 60 percent of the wash and rinse water.

(b)

Use recycled water provided by a water supplier for at least 60 percent of its wash and rinse water.