Interceptor Conveyance

Interceptor system

Photograph of interceptor waiting to be installed.Individual wastewater service connections from homes, businesses, and other properties are typically made to the local community sewer collection systems in the streets. The local community collection systems transport wastewater to service points, usually at the city border, where the wastewater is transferred into the Metropolitan Council Environmental Services (MCES) interceptor system. The MCES interceptor system meters and transports the wastewater flows to one of nine regional wastewater treatment plants. The interceptor sewers range in size up to 14 feet in diameter.

This regional wastewater transportation system is comprised of over 600 miles of pipelines, 60 lift stations, 21 rain gauges and over 220 metering sites. In addition to operating and maintaining this system, MCES manages an inflow and infiltration program as part of the Water Resources Management Policy Plan.

Inflow and infiltration

Inflow and infiltration is clear water that enters the sewer system from a variety of sources. Infiltration occurs when groundwater seeps into sewer pipes through cracks, leaky pipe joints and/or deteriorated manholes; inflow occurs through rainfall/storm water that enters the wastewater system. More about inflow and infiltration (I/I).

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Odor Control Hotline: 651-602-4511

Interceptor permits

Connection permits: Developers and communities who will be making a direct connection to MCES interceptor facilities must complete a connection permit application in addition to any required sanitary sewer extension permits. Developers must work with the municipality where the project is located to submit the connection permit application. Additional information about the connection permit application is available on the form.

Encroachment agreements: Work over and in Metropolitan Council Environmental Services easements is only allowed with permission from MCES. Encroachment agreements may be required for projects that impact MCES easements, even if no direct connection to MCES sewers is involved. Additional information about encroachment agreements is available on the form.

MCES interceptor sewer planning and construction projects

The following information includes current MCES interceptor sewer projects. 

For additional information, please refer to one of the following MCES Interceptor Services contacts.