Grease, oil and sand interceptors shall be provided by any user when, in the opinion
of the district, it is necessary for the proper handling of liquid wastes containing
grease in excessive amounts or any flammable wastes, sand or other waste harmful to
the district's sewer system or treatment facilities. All interceptors shall be of
a type and capacity approved by the district and shall be so located as to be readily
and easily accessible for cleaning and inspection.
Grease and oil interceptors shall be constructed of impervious materials capable of
withstanding abrupt and extreme changes in temperature and shall be of substantial
construction and equipped with easily removable covers, which, when bolted in place,
shall be gas-tight and water-tight.
When installed, all grease, oil and sand interceptors shall be maintained by and at
user's expense, in continuously efficient operation.
All food service establishments shall install, operate and maintain appropriately
designed interceptors to control fats, oils and grease. Multiple food service establishments
may be served by a single interceptor when located on a single parcel of land. The
operation of fats, oils and grease control devices by food service establishments
shall include industry best management practices such as:
(a)
Removal of accumulated material when the material depth exceeds twenty-five percent
of the design hydraulic depth, but not less frequently than every six months. Collection
of accumulated material shall be by appropriately licensed waste haulers and disposal
shall be pursuant to federal, state and local laws.
(b)
Use of drain screens.
(c)
Dry wiping to remove and disposal of food waste to trash receptacles.
(d)
Collection of waste cooking oil.
(e)
Maintenance of exhaust filters.
(f)
Employee training.
(g)
Kitchen signage.
(h)
Record keeping.
The following prohibitions shall apply to all food services establishments:
(a)
The installation of food grinders in new construction and the use of food grinders
in existing construction after one hundred eighty days of the effective date of the
ordinance codified in this section unless authorized by the district manager.
(b)
The introduction of additives for the purpose of emulsifying or biologically or chemically
treating fats, oils and grease for remediation or as a supplement to interceptor maintenance.
(c)
The disposal of waste cooking oil into a sewer drainage system.
(d)
The discharge of wastewater from dishwashers to any trap or interceptor.
(e)
The discharge of any waste removed or unauthorized bypass from the trap or interceptor
to the sewer system.
