(1) Grease, oil, and sand interceptors shall be provided when, in the opinion of the Provo City Industrial Pretreatment Coordinator, they are necessary for the proper handling of wastewater containing excessive amounts of grease and oil, or sand; except that such interceptors shall not be required for residential users. All interceptor units shall be of a type and capacity approved by the Provo City Industrial Pretreatment Coordinator, and shall be so located to be easily accessible for cleaning and inspection.

(2) Where installed, all grease, oil, and sand interceptors shall be cleaned and maintained in continuous efficient operation at all times by and at the sole expense of the user. It shall be unlawful to use any kind of emulsifier in any grease trap, interceptor, or drain in any building or at any location, unless approved in writing by the Provo City Industrial Pretreatment Coordinator.

(3) Users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.

(4) Sampling manholes shall be located in an area to allow for ease of cleaning, sampling and inspection by the user and the City. If located in a parking area, parking shall not be allowed on the sampling manhole.