Grease, oil and sand interceptors shall be installed by the user when, in the opinion of the director, they are necessary for the proper handling of liquid wastes containing grease, flammable waste, sand or other harmful ingredients.
A. 
Toilets, urinals, wash basins and other fixtures containing fecal material shall not flow through the interceptor.
B. 
No wastewater having excessive temperatures which will cause pass through of grease, shall be discharged to the grease interceptor for any duration.
C. 
No chemicals shall be added to the interceptor that will cause pass through of grease.
D. 
Abandoned grease interceptors shall be emptied and filled as required for abandoned septic tanks (Section 722.0 et seq., of the California Plumbing Code; 24 CCR Section 722.0 et seq.).
(Ord. 941 § 2, 2015)
The director shall administer an interceptor program which is intended to prevent grease, sand, flammable liquids, and other substances which are likely to block or create a hazard within the sewerage system from entering the system through use of interceptors or traps. The director may require any nondomestic user to install an interceptor or trap according to the guidelines set forth in the city's Standard Plans and Specifications or other program prior to connection to the city or at any time after connection to the city sanitary sewer if the director discovers or determines subsequent to the connection that the building, facility, or operation of that user produces a waste with characteristics that would require installation of a trap or interceptor pursuant to this chapter. The premises owner and the entity which applies for the connection or industrial user permit (e.g., the owner/proprietor of the business) shall install a proper interceptor or trap device. The director shall determine whether a grease trap, grease interceptor, or other interceptor is required on a case-by-case basis based on an evaluation of objective criteria including, but not limited to, factors such as those listed hereunder:
A. 
The type of facility (e.g., a restaurant, bakery, cheese factory, yogurt shop, gas station, lube facility).
B. 
The volume of the user's business or operation (such as number of meals served, number of seats, hours of operation).
C. 
Size and nature of facilities (including kitchen facilities) based on size, type, number of fixtures, and type of processing or cooking equipment used.
D. 
The type of service provided or operation undertaken (such as dine-in meal service versus carry-out meal service).
E. 
The type of foods or other materials used in the cooking, processing, or manufacturing operations carried on within the user's facility.
F. 
The overall potential for grease-laden, flammable, or sand-laden discharges.
G. 
The existence of devices, procedures, or processes which are designed to minimize the amount of grease, sand, oil, or other flammable liquids from entering the sewer system.
The design, location, and procedures for operation of a required interceptor or trap shall be approved by the director. Such approval shall be obtained prior to the user's connection of the facility to the city's sewerage system, in the event of new construction or remodeling. In instances where a user has already connected and the director determines that an interceptor or trap must be installed, the user shall promptly provide for the installation of the interceptor or trap within a reasonable time frame (as may be set by the director), including providing such design plans and operational plans as may be required. The installation of an interceptor or trap as required by this chapter on an existing user facility shall occur within reasonable time not to exceed one hundred twenty days after the user has been provided notice of the requirement that an interceptor or trap be installed. This one hundred twenty-day limit may only be extended by written agreement of the director.
(Ord. 941 § 2, 2015)
Maintenance shall be conducted by user in order to ensure the proper operation of interceptors and traps. If the operations of a specific user modify the need to follow the specified standards, the user can request a variance from the director in writing on a form provided by the director. Unless the director issues a written variance to a user, the user shall meet the specified minimum maintenance standards of this section:
A. 
Access to interceptors and traps shall be maintained to allow inspection and maintenance to be performed. Inspections shall be performed at appropriate frequency to ensure adequate operation of the interceptor or trap and to evaluate effectiveness of best management practices to control sources of pollutants.
B. 
Interceptors shall be operated so that the accumulated grease and solid waste does not meet or exceed twenty-five percent of the unit's capacity. Determinations shall normally be made by measuring the depth of the layers within a unit.
C. 
Interceptors shall be cleaned at least once every ninety days. Interceptor cleaning shall be conducted to pump all the liquid and solid contents of the unit, and the sides will be cleaned of any substantial build-up of grease and solid wastes.
D. 
Traps shall be cleaned according to the manufacturer's recommended frequency (e.g., daily, weekly) when conducted by user's employees, and shall be pumped of all the liquid and solid contents using a licensed and permitted waste hauler at least once every ninety days.
1. 
The user may clean smaller traps in lieu of using a licensed and permitted waste hauler at least once every ninety days provided that all the standards for cleaning traps are met, including, but not limited to, removal of all liquids and solids and not decanting wastes. The user shall document the proper disposal of the wastes removed from the trap as well as the frequency of pumping.
E. 
Decanting of wastes removed from an interceptor or trap is prohibited when a licensed and permitted waste hauler is used to clean a unit. Wastes removed from the interceptor or trap shall not be reintroduced into the unit cleaned or any other connection to the sewerage system unless the location is specifically authorized in a current waste hauler permit.
F. 
The user shall maintain records documenting proper maintenance of the interceptor or trap. The disposal location (name, address, phone number for off-site facilities) for wastes removed from an interceptor or trap shall be recorded and made available for inspection upon request.
(Ord. 941 § 2, 2015)
Failure of any user who is required to maintain an interceptor or trap pursuant to this chapter and/or pursuant to lawful director direction, shall be subject to each of the enforcement provisions set forth in this chapter. The enforcement provisions of this chapter shall apply to the failure to instruct personnel, or to maintain, pump, and/or institute a proper grease or flammable substance reduction program.
(Ord. 941 § 2, 2015)