2040 Comprehensive Plan: Envision Shakopee

Addressing inflow, infiltration, and blockage is a continual challenge. Inflow refers to clear water entering the sanitary sewer system from a single point such as a sump pump, foundation drain, or sewer access covers. Infiltration is the seepage of groundwater into sewer pipes through cracks or joints. Blockage occurs when pipes are clogged or obstructed by solids or tree roots. Unlike sewage wastewater, water from inflow and infiltration is clean and does not require treatment. Minimizing the volume of inflow and infiltration preserves pipe capacity for sewage conveyance, reducing treatment costs and potentially guards against premature infrastructure improvements. Blockage must clearly be avoided for the system to work effectively. The city makes an extra effort to upgrade manholes and mains to address inflow and infiltration in its annual street construction projects. ISSUES&OPPORTUNITIES

ISSUES » » Growing frequency and size of major rain events, drought, extreme heat, ice storms and snow events » » Flooding and erosion » » Aging infrastructure » » Ongoing operations and maintenance expense » » Growth and demand for services OPPORTUNITIES » » Completion of projects with mutual benefits to water quality, water quantity, natural resources, recreation, beautification and health » » New technologies and innovations » » Improve aesthetics, recreation and natural habitats

305