The City ordinance defines these systems as any sanitary sewer pipe originating or located at least partially on a common interest development collecting wastewater from more than one building sanitary sewer, including, but not limited to apartment buildings, business complexes, mobile home parks, condominiums, or townhomes. This excludes single-family residential property with an accessory dwelling unit.
All private sanitary sewer collection systems are required to be inspected for any defects and any repairs needed by a Qualified Plumbing Contractor every two years if the system collects wastewater from ten or more building sanitary sewers, or every five years if the system collects wastewater from less than ten building sanitary sewers, to meet the city’s standards as specified by the Utility Inspections at Property Sale Inspection Report (PDF).
These types of properties are not exempt from this program. However, a property that was constructed in 2008 or later is exempt from this requirement. Note this date alters each year. For example, in 2024 any property that is constructed in 2009 or later will be exempt. 
Note: Townhome, condominium, apartment complex, and duplexes may be either PSSCS or PSL depending on the connection between the building and the city sewer main. Contact the City if clarification is needed for the property.