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(b) Newly constructed FSEs. <br />(1) A newly constructed FSE(s) shall install grease interceptors prior to commencing the discharge of <br />wastewater to the sewer system. <br />(2) Existing FSEs undergoing remodeling or a change in operations shall be required to install a grease <br />interceptor prior to commencing the discharge of wastewater to the sewer system. <br />(c) Existing FSEs. Existing FSEs are not required to install a grease interceptor unless the FOG control program <br />manager makes a determination that the existing FSE currently or potentially adversely impacts the sewer <br />system by causing or contributing to: <br />(1) FOG hot spots; <br />(2) Interference; <br />(3) SSOs; or <br />(4) The FSE is not implementing or complying with BMPs as listed in the rules and regulations. <br />(5) The FSE(s) shall install grease interceptors within one hundred eighty (180) days after receipt of official <br />notice to install the interceptor unless the FSE obtains a conditional waiver as discussed below. <br />(d) Conditional waiver of interceptor requirement. The FOG control program manager may provide a written <br />waiver of the requirement to install a grease interceptor, listing the conditions upon which the waiver is <br />granted, upon a finding of one or more of the following conditions set forth in subsections (1), (2), and (3): <br />(1) The FSE can substantively demonstrate that it employs an alternative pretreatment technology that is <br />equivalent to or better than a grease interceptor in controlling its FOG discharge. <br />(2) There is no potential for FOG from the FSEs to cause or contribute to SSOs. <br />(3) The FSE discharges of FOG are negligible and do not cause a significant impact to the sewer system. <br />(4) The FSE may use or may be required to install grease traps in lieu of installation of a grease interceptor <br />when: <br />(A) Installation of an interceptor cannot physically be accomplished; <br />(B) There is not adequate slope for gravity flow between kitchen plumbing fixtures and the grease <br />interceptor and/or between the grease interceptor and the private collection lines or the public <br />sewer; and <br />(C) No alternative pretreatment can be installed. Sizing and installation of grease traps shall conform <br />to the current edition of the California Plumbing Code. Grease traps shall be maintained in <br />efficient operating conditions by periodic removal of their full content, including sewage, FOG, <br />floating materials, sludge, and solids. The maintenance frequency for all FSEs with grease traps is <br />specified in FOG Control Program Rules and Regulations. <br />(e) Revocation of waiver. The program manager may revoke a waiver upon a determination of one (1) or more <br />of the following: <br />(1) Quantity of FOG discharge, as measured or as indicated by the size of FSEs based on seating capacity, <br />number of meals served, menu, water usage, amount of on -site consumption of prepared food, and <br />other conditions, has changed since the granting of the waiver such that the FSE is contributing to FOG <br />discharges. <br />(2) Adequacy of implementation and compliance with BMPs. <br />(3) Change in sewer size, grade, and condition based on visual information. <br />(Supp. No. 30) <br />Created: 2025-01-29 11:22:14 [EST] <br />Page 34 of 54 <br />