09/02/2008 Council Packet - Laserfiche WebLink

Home Search

MCES No. 69 -01 Metropolitan Service to Sewer District 4 Lino Lakes Sewer District 4 is not currently served by an MCES facility. Future sewer service to this area is expected to be provided by way of the White Bear Township sewer system, ultimately discharging to MCES Interceptor 69 -01 (the Forest Lake Interceptor). Recent projects have extended service to the Lino Lakes boundary at three locations: an 18 -inch gravity sewer on the west side of Centerville Road, the North Oaks Company's Rapp Farm lift station at the west end of Wilkinson Lake, and a White Bear Township sewer along the west side of Bald Eagle Lake. The capacity potentially available for Lino Lakes in the White Bear Township system is approximately 2.5 MGD. MCES Future Service to District 5 MCES recently constructed the Lino Lakes Relief Interceptor, which extends west from the MCES Interceptor 70 -29 along Washington County Highway 8 to the Lino Lakes boundary. This sewer will serve District 5. Available capacity for Lino Lakes at this location is 5.6 MGD. THE FUTURE IMPROVEMENTS TO MCES INTERCEPTORS The MCES is in the process of updating their comprehensive planning for the "Northeast Region," which includes Lino Lakes, Centerville, North Oaks, Forest Lake, Hugo, Forest Lake Township, White Bear Lake, and White Bear Township. They anticipate the need to provide additional capacity in the Forest Lake Interceptor and downstream facilities to serve the future needs of those communities. The MCES also anticipates the need to upgrade portions of the North Suburban Interceptor to serve future development in Lino Lakes and Blaine. The proposed Southeast Anoka County Interceptor is a key part of the North Suburban Interceptor improvement program. The Lino Lakes Sewer Plan, as well as the Comprehensive Plans of neighboring communities, will be used by MCES to assess the scope and timing of future interceptor improvements. Intercommunity Connections: An existing intercommunity connection to Shoreview serves 13 lots on the north side of Ash Street (County Road J) west of Hodgson Road in Sub - District 1A. In addition, several homes along Sunset Avenue south of Elm Street are served by the Blaine sewer system. As a result of joint planning by the cities of Lino Lakes and White Bear Township, the White Bear Township sewer system has capacity available to serve Lino Lakes District 4. However, no formal agreement exists between the city and township; this agreement should be pursued by the City. Infiltration and Inflow: Infiltration and Inflow (I & I) consists of clear water that enters a sanitary sewer system from a variety of sources that include ground water (from cracks in pipes, leaky joints, and deteriorated manholes), storm water (from rain leaders), and illegal connections (basement sump pumps and foundation drains). This is currently identified by the Metropolitan Council as a significant concern in many Metropolitan Municipalities. I & I flowing into the Metropolitan system reduces available interceptor capacity and adds unnecessary treatment expense. Lino Lakes is not on the MCES list of communities who must take action to control I & I so no mitigation plan is required or provided. However, the City has recognized the importance of controlling these sources of unintended flow. In 2001, the City completed an Inflow and Infiltration Study which included analyses of sub -areas of the City including lift stations and flow meters. Areas for priority attention were identified, correction work was addressed, and the MCES approved the results. The City considers this an ongoing responsibility to monitor and correct as necessary. Capital Improvement Plan: The Plan provides recommendations for the staged expansion of the City's sanitary sewer system to meet the projected growth and development plan. Figure 7 -4, Sanitary Sewer System with Staging shows the 7 -20 • • •