No food service establishment (FSE) shall discharge or cause
to be discharged into the sewer system polar or nonpolar FOG that
exceeds a concentration specified in Sec. 70-86 or a lower concentration
that accumulates and/or causes or contributes to blockages in the
sewer system or at the sewer system lateral which connects the food
service establishment to the sewer system.
In additions to the prohibitions found in Sec. 70-86, the following
prohibitions shall apply to all food service establishments:
(1) Discharge of wastes through food grinders and/or garbage-disposal-type
devices to sewer lines intended for grease control device service
is prohibited unless an appropriately sized solids trap is installed
immediately after such grinder or device.
(2) Discharge of food waste, including food grinder waste that cannot
pass through a one-quarter-inch sieve, is prohibited.
(3) Discharge of wastes that do not require separation (e.g., urinals,
toilets, wash basins, etc.) to sewer lines intended for grease control
device service is prohibited.
(4) Introduction of any additives into a food service establishment's
wastewater system for the purpose of emulsifying FOG or biologically/chemically
treating FOG for grease remediation or as a supplement to interceptor
maintenance is prohibited, unless a specific written authorization
from the Director is obtained prior to use.
(5) Disposal of bulk waste cooking oil into drainage pipes connected
to the POTW, with or without a grease interceptor, is prohibited.
To the extent practical, all waste cooking oils shall be collected
and stored properly in receptacles such as barrels or drums for recycling
or other acceptable methods of disposal.
(6) Discharge to the POTW of any waste and solid materials removed from
a solids interceptor is prohibited. Solids removed from solids interceptors
shall be disposed of according to applicable regulations.
Separate grease control devices shall be installed at food service
establishment located on a single real property parcel unless otherwise
approved by the Director. Maintenance of grease control devices shall
be the responsibility of the FSE operator unless a lease or other
contractual document specifies otherwise.