Article 2. Liquid Waste of California Health And Safety Code >> Division 104. >> Part 7. >> Chapter 7. >> Article 2.

Liquid waste shall be disposed of through the approved plumbing system and shall discharge into the public sewerage or into an approved private sewage disposal system.

Equipment compartments that are subject to accumulation of moisture due to conditions such as condensation, food or beverage drip, or water from melting ice, shall be sloped to an outlet that allows for complete draining.

(a) If provided, a grease trap or grease interceptor shall not be located in a food or utensil handling area unless specifically approved by the enforcement agency.
  (b) Grease traps and grease interceptors shall be easily accessible for servicing.
  (c) Notwithstanding subdivision (a), those food facilities approved with a grease trap or grease interceptor that are in operation before the effective date of this part are not required to comply with this section.