California Code, Health and Safety Code - HSC § 40515

(a) Any public utility owned by a municipal corporation within the south coast district shall provide public notice, pursuant to subdivision (b), before submitting to the board of the south coast district any application for a permit to construct or operate any facility, machine, or contrivance that would be used for water treatment and would emit toxic air contaminants.

(b) A public utility specified in subdivision (a) shall mail, post, deliver, or use any other practical method to notify all residents and persons who own property within 330 feet of the property containing the proposed facility, machine, or contrivance. The notice shall include a description of the proposed facility, machine, or contrivance and an explanation of the right to petition the south coast district board to hold a hearing pursuant to Section 40509.