Appendix B: Comprehensive Sanitary Sewer Plan Update - 2017

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2. Subdistrict M4 This subdistrict is located north of Highway 10 and west of Armstrong Boulevard. The trunk sanitary sewer facilities have been modified to reflect the findings of the 2015 Future Business Park study that was completed for this area of the City. Lift station MLS- 5 was added to the improvements required for this subdistrict. All project costs have been updated to 2017 unit prices. Because portions of these improvements have been, or are programmed to be constructed in 2017, we included some in the Capital Improvement Plan and others in the future improvements plan. 3. Subdistricts R21 Through R25 These subdistricts are located north of Trott Brook in the north central portion of the City. No layout revisions to these trunk extensions were made. All trunk line project costs have been updated to current 2017 unit prices. 4. System Extension for 167t' Avenue Future MUSA Study Area The Future MUSA Study Area identifies an area to better understand the feasibility of extending a trunk sewer line to the 167th Avenue/Saint Francis Boulevard (TH 47) land use node. Municipal Water service exists to the area, but Sanitary Sewer does not. The City has a land use goal to revitalize this node and surrounding area, and the availability of Sanitary Sewer is a major variable in future land use decisions. The MUSA boundary does not currently include this area. Findings from this study area will be utilized to influence the City's 2040 Comprehensive Plan Update and discussions with private developers currently proposing certain land use scenarios. C. TRUNK SANITARY SEWER SYSTEM COSTS Attached are the updated cost estimates related to the above revisions, totaling $7,571,929. These costs include 25% for indirect costs such as administration, engineering, legal and financing. Additionally, we have included a 20% contingency for unforeseen improvements which may be required during the study period, for a total cost of $9,086,315 in 2017 dollars. The City's current Capital Improvement Plan was used to determine expenditures for the years 2017 to 2020. For the years 2021 to 2040, the above described costs were spread evenly over the 20 year period, while being inflated at a rate of 3% per year. D. DEVELOPMENTAL IMPACT ON THE COMPREHENSIVE SANITARY SEWER STUDY Actual and projected development within the City of Ramsey since the 2012 Comprehensive Sanitary Sewer Study are summarized as follows: • Actual Total Connections from 2012-2015 are as follows: - 2012: 295 - 2013: 164 - 2014: 66 - 2015: 258 - Avg: 196 City of Ramsey, Minnesota — R16.110056 Page 2 Comprehensive Sewer Plan Update Prepared by Bolton & Menk, Inc.