Section 5043 Of Article 7. Rates And Collection From California Health And Safety Code >> Division 5. >> Part 3. >> Chapter 5. >> Article 7.

. The governing body may establish variable rates for different classes of users, or for different parts of the area, where all or any portion of the sewage works have been previously installed and financed under other laws or methods, so that the variable rates may be most equitable and just to all concerned.