14.10.120 Additional Pretreatment Measures.
A. The Director may immediately and effectively halt or prevent any discharge of pollutants to the POTW which reasonably appear to present an imminent endangerment to the health or welfare of Persons. In such cases, the Director will provide the User advance notice if possible, but shall not delay a response to imminent endangerment.
B. The Director may halt or prevent any discharge to the POTW which presents or may present an endangerment to the environment or which threatens to interfere with the operation of the POTW (including the collection system and pump stations). In such cases, the Director shall attempt to provide not only notice to the affected User(s), but the opportunity to respond.
C. Any User causing the Director to exercise the emergency authorities provided for under Section 14.10.120(A) and Section 14.10.120(B) shall be responsible for reimbursement of all related costs to the City.
D. The Director may require Users to reduce or curtail certain discharges to the POTW, designate that certain wastewater be discharged only into specific sewers, relocate and/or consolidate points of discharge, separate sewage wastestreams from industrial wastestreams, and take all other measures to protect the POTW and determine the User’s compliance with the requirements of this Ordinance.
E. The Director, based on the determination that such facilities or devices are necessary for implementation of pretreatment requirements, may require any Person or User to install and maintain, on their property and at their expense, pretreatment facilities, devices and equipment that may include, but not be limited to, any of the following:
1. A sample taking facility accessible to the Director;
2. A suitable storage and/or flow equalization tank;
3. A Grease, oil, and/or grit trap and/or interceptor;
4. An approved hazardous gas detection meter;
5. An amalgam separator and/or a silver recovery unit; or
6. Other pretreatment facilities, devices, equipment, and/or units as may be necessary to treat nondomestic wastewater prior to entering the POTW.
Persons who operate restaurants, cafes, lunch counters, cafeterias, bars, hotels, school kitchens, butcher shops, or other establishments where food (polar) grease may be introduced into the POTW shall be required to install pretreatment facilities to prevent the discharge of fat waste, oil, and grease into the POTW. Such pretreatment facilities shall be either a grease interceptor or grease trap as determined by the Director and located outside the building, and installed in the wastewater line leading from sinks, drains, or other fixtures where fat waste, oil, and grease may be discharged to the POTW. Grease traps inside the kitchen area will only be allowed under special circumstances and shall only be approved by the Director on a case-by-case basis. Persons may be required to retrofit facilities which were constructed prior to the adoption of this Ordinance.
Persons installing any pretreatment facility or device shall ensure they are of the type and capacity approved by the Director and conform to any separate requirements established by the City. Persons shall locate pretreatment facilities or devices in areas easily accessible for cleaning and inspection by representatives of the Director. Persons shall be responsible for all periodic inspection, cleaning, maintenance, and repair of such facilities.
F. Persons shall maintain pretreatment facilities or devices in a manner that shall prevent Pass Through into the POTW at all times. The Director shall be authorized to establish routine maintenance schedules of such pretreatment facilities or devices for the purpose of inspection, maintaining effective treatment and pollutant removal, and reducing pollutant loadings to the POTW. The City shall be allowed access to pretreatment facilities or devices for the purpose of inspection and/or to verify compliance with this Ordinance. Waste removed from a pretreatment facility or device shall not be disposed of in the POTW. A record of disposal may be required to be maintained for review by the City. The use of hot water, enzymes, bacteria, chemicals, or other agents for the purpose of causing the contents of a pretreatment facility or device to be discharged into the POTW is prohibited. Persons may be required to retrofit facilities that were constructed prior to the adoption of this Ordinance. (Ord. M-3970 §2, 2010)