Chapter 7.35
OIL/WATER SEPARATORS

Sections:

7.35.010    Oil/water separators required.

7.35.010 Oil/water separators required.

Whenever an industrial or commercial business generates mineral/petroleum oils exceeding 100 milligrams per liter to be discharged to the sanitary sewer, pretreatment is required. Businesses that typically need oil/water separators include, but are not limited to, quicklime stations, transportation fueling facilities, vehicle/heavy equipment repair shops, and businesses using steam or pressure washers. Except where otherwise specifically permitted, no wastes other than those requiring treatment or separation shall be discharged into any interceptor. An oil/water separation device, if required, shall be installed by the property owner as specified in and in compliance with the district’s current oil/water separators specifications, which are located on the district’s website and are available on request. Water discharged from any oil/water separator to the sanitary sewer system shall not contain in excess of 100 milligrams per liter of petroleum oil, nonbiodegradable cutting oil or mineral products, and shall be in compliance with Cross Valley Water District and King County/Metro regulations for discharge to the sanitary sewer. [Res. 2022-5-2 § 7.]