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Inflow and Infiltration (I&I)

Inflow and infiltration are terms used to describe storm-water and groundwater that enters into the sewer system. Inflow is storm-water that enters directly into a sanitary sewer system. Sanitary sewer systems are designed to carry only wastewater.  Infiltration is excess water that gets into the sewer system through open joints, cracks, and breaks in the pipes. The I & I department conducts routine testing and inspections to determine where inflow and infiltration problems exist. Various methods used to identify problem areas include smoke and dye testing, flow monitoring, visual manhole inspections and televising lines.

Construction inspectors in this department ensure that Greenwood Metropolitan District’s design manual and sanitary sewer ordinances are being followed by developers, contractors and plumbers. Greenwood Metropolitan District’s inspectors inspect all new construction, home or business service line connections and when a residential or business service line is replaced.