Agenda - Council - 06/26/2012 - Laserfiche WebLink

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C. SYSTEM EXTENSIONS FOR 2030 MUSA The sanitary sewer trunk system extension and improvement required to service the 2030 MUSA are shown on Figure 1 in the Appendix. The extensions are required generally in three areas which are individually discussed below. The proposed facilities are sized to accommodate the ultimate sewer flow from the entire service area for each extension including the areas outside of the 2030 MUSA boundary. This provides flexibility for allowing future MUSA expansions. 1. SUBDISTRICT M3 This subdistrict is located in the southwest corner of the City south of Highway 10. Service to this area will require extensions from the 30-inch trunk sewer on Sunwood Drive. The majority of the area will be serviced by lift station MLS-2 which will discharge to an 18-inch gravity sewer extended to the south side of Highway 10. The proposed trunk sewer on Bowers Drive will provide lateral benefit to the adjacent properties and the trunk cost is therefore limited to the oversizing and over depth costs. The total estimated cost of the trunk sewer improvements to service the M3 subdistrict is $1,831,000. Lateral sewer extensions from the proposed trunk will be required and these costs are not included. 2. SUBDISTRICT M4 This subdistrict is located north of Highway 10 and west of Armstrong Boulevard. Service to this area will require extensions from the 18-inch sewer on Bunker Lake Boulevard. The total estimated cost of the 12-inch and 15-inch gravity sewer extensions is $414,500. 3. SUBDISTRICTS R21 THROUGH R25 These subdistricts are located north of Trott Brook in the north central portion of the City. Service to this area will require extensions from existing lift station RLS-3 in the Brookfield development. Subdistricts R21 and R22 on the west side of CSAH 5 can be City of Ramsey Page 4-4 Comprehensive Sanitary Sewer Plan - 2012 Prepared by Bolton & Menk, Inc.