Monterey Municipal Code § 30-10 Requirement for grease trap, grease interceptor, or other device

a.A food service establishment or any other business discharging fats, oil, and grease, or other similar material, shall have an operable grease trap, grease interceptor or other comparable device(s) as determined by Monterey One Water, the City Engineer, and/or the City’s Chief of Inspection Services/Building Official to be an adequate substitute for a grease trap or grease interceptor. A properly sized interceptor or trap shall be considered first, in conformity with the sizing matrix set forth by Monterey One Water. Should space limitations or other exceptional circumstances prevent their installation, the City may grant waivers to the requirement for grease interceptors in this section.

b.All drains from food preparation and cleanup areas including, but not limited to, pre-wash sinks, floor drains, pots and pans sinks, scullery sinks, dishwashers and garbage can wash areas shall be connected to such interceptor. Food waste disposal units are only allowed where a grease interceptor has been installed and must be connected to that interceptor.

c. Sizing Formula.The size of a grease trap or grease interceptor shall be as determined by Monterey One Water. Notwithstanding the foregoing, grease traps required by this chapter shall be no smaller than an 80-gallon liquid capacity trap unless otherwise approved by the Chief of Inspection Services/Building Official. (Ord. 3684 § 9, 2024; Ord. 3446 § 1, 2010; Ord. 3424 § 1, 2009)

a.Existing food service establishments must not cause blockages of their own sanitary sewer lateral or City sewer mains which contribute to sanitary sewer overflows or increased maintenance of the sewer system. Food service establishments not otherwise required to upgrade their grease control equipment or that have been granted a waiver pursuant to this article may be required to upgrade their equipment in accordance with the Grease Source Control Program adopted by resolution by the City of Monterey.

b.New construction of food service establishments shall be required to comply with Section 30-10(a) through (c) except that waivers will not be considered.

c.Existing food service establishments shall install and/or upgrade grease source control equipment consistent with Monterey One Water sizing matrix standards, the California Plumbing Code as applicable, and the requirements of the Chief of Inspection Services/Building Official consistent with all applicable codes and agreements.

1.Food service establishments are required to:

i.Install an interceptor sized according to Monterey One Water’s Grease Equipment Sizing Matrix, or

ii.At a minimum, install a grease trap sized according to inspection records, no smaller than 80-gallon liquid capacity, unless a hardship can be proven and the Chief of Inspection Services/Building Official approves a smaller size.

2.Food service establishments that choose to install a grease trap instead of an interceptor will be required to pay a monthly grease pretreatment waiver fee as adopted by Resolution 07-079 by the City of Monterey.

3.Food service establishments that fail to install adequate grease pretreatment equipment by:

i.September 1, 2010, or within one year of notification of requirement, will be charged double the initial waiver fee; and

ii.By September 1, 2011, or within two years of notification of requirement, will be charged triple the initial waiver fee.

d.Existing food service establishments undergoing a facility remodel shall install and/or upgrade grease source control equipment consistent with the policies herein, the cost of which shall not be less than 15 percent of the total cost of remodel. (Ord. 3684 § 9, 2024; Ord. 3446 § 1, 2010)