Half Moon Bay Municipal Code Art. II Prohibitions And Regulations

Every owner, tenant, entity, or person receiving public sewer collection service from the city shall have a duty to not cause, permit or allow the accumulation of FOG in the city sewer system. Such persons and entities shall use industry best management practices and city-approved methods to reduce FOG accumulation in the city public sewer collection system and shall adhere to the following prohibitions:

A. Disposal of fats, oils and grease, or any food waste containing fats, oils and grease, directly into drains leading to the sewer system is prohibited.

B. Discharge of yellow grease, or any waste or mixed material mixed with yellow grease, into the sanitary sewer system from a food service establishment is prohibited. No yellow grease from a food service establishment shall be mixed with grease trap or grease interceptor waste.

C. Introduction of any additives into the wastewater collection system for the purpose of emulsifying FOG or biologically or chemically treating any substance introduced into any wastewater system for purpose of treatment or pretreatment of wastewater, unless a specific written authorization by the public works director is obtained, is prohibited.

D. Disposal of insoluble waste from trash or materials enclosure into the sanitary sewer system without an approved oil and sand separator is prohibited.

E. Installation of food grinders (or garbage grinders) in any new construction or renovation of a structure designed to house an FSE or FM/P is prohibited. All FSEs that undergo a change in operations or remodeling shall remove any existing food grinders concurrent with such change or remodeling, except as otherwise expressly allowed by the public works director.

F. Discharge of wastewater from commercially operated dishwashers or food grinders (or garbage grinders) to sewer pipes conveying wastewater to an interceptor or any other grease capturing equipment is prohibited unless such connections or modifications to existing units are approved and issued a building permit by the city.

G. Discharge of wastewater at temperatures in excess of one hundred forty degrees Fahrenheit to or through any grease capturing equipment is prohibited.

H. Operation of sand and grease interceptors/traps if the unit has accumulated waste and/or solids, including FOG, food solids, sand or other insoluble materials, accounting for twenty-five percent or more of its wetted depth measured from the static water level to the interior tank bottom, with FOG and solids accumulation, exceeding twenty-five percent of the total operating depth of the grease interceptor/trap is prohibited.

I. Discharge of any FOG or any other solid materials removed from the grease control device to the public sewer collection system is prohibited. Grease removed from grease interceptors shall be waste hauled to an approved disposal site as part of the operation and maintenance requirements for grease interceptors.

J. Connection of non-grease-laden sources of wastewater to a sewer line intended for grease interceptor service is prohibited.

(Ord. C-2023-03 § 2 (Att. A), 2023)

All FSEs, commercial and industrial businesses and other entities with the potential to introduce FOG or insoluble waste into the city's public sewer collection system shall implement best management practices (BMP) in their operations, in accordance with the requirements and guidelines established by the city's FOG control program, to minimize the discharge of FOG, sand and other insoluble waste to the grease control device and/or the public sewer. This may include facility and kitchen practices and employee training that are essential to minimizing FOG and insoluble waste discharge.

(Ord. C-2023-03 § 2 (Att. A), 2023)

A. All FSEs, commercial and industrial businesses and other entities with the potential to introduce fats, oils, grease, sand or other insoluble waste into the city's public sewer collection system shall participate in the city's FOG control program as described in Article VI of this chapter.

B. No person shall discharge, or cause to be discharged, any wastewater from FSEs, commercial or industrial businesses, or other entities, directly or indirectly into the public sewer without first obtaining a FOG wastewater discharge permit (FOG WDP) pursuant to this chapter and the city's FOG control program.

(Ord. C-2023-03 § 2 (Att. A), 2023)

A. FSEs and commercial and industrial businesses discharging FOG into city's sewer system shall install, operate, properly maintain and service approved types and adequately sized grease control devices (GCD) in accordance with this section, and any permits, authorizations, rules and regulations issued by the public works director, the FOG WDP outlined in Article VI of this chapter, and applicable building codes and regulations. All fixtures, equipment and drain lines located in food preparation and clean up areas that are potential sources of FOG discharge shall be connected to a grease control device.

B. All FSEs and business establishments shall properly store and recycle or dispose of fats, oils and grease diverted from their liquid waste streams in accordance with all laws and regulations applicable to such storage, recycling and disposal.

C. Commercial and industrial businesses discharging sand and grit into city's sewer system shall install, operate, properly maintain and service approved types and adequately sized sand and grit control or grease control devices (GCD) in accordance with this section, and any permits, authorizations, rules and regulations issued by the public works director, the FOG WDP outlined in Article VI of this chapter, and applicable building codes and regulations.

D. All wastewater dischargers must at all times comply with the provisions of this section, all other applicable local, state and federal laws, including but not limited to applicable provisions of the San Mateo County health and building and plumbing codes, and applicable rules, regulations, permits and authorizations issued by the city of Half Moon Bay.

(Ord. C-2023-03 § 2 (Att. A), 2023)