06-18-07 Item 2D, Comp Plan Update Kickoff

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the cost of providing attenuation within the MDS to recover the capacity lost to excessive III. The III goal established for the City of Arden Hills is the allowable peak hourly flow rate as shown in Table I and varies based on annual average flow. The Council's metering program shows that the city's 2004 annual average flow at meter M051 was 0.47 mgd thus the current III goal for this connection point from your community is an allowable peak hourly flow of 1.63 mgd. The current annual average flow at meter M052 is 0.046 mgd thus the current III goal for this connection point from your community is an allowable peak hourly flow of .19 mgd. The current annual average flow at meter M054 is .2 mgd thus the current III goal for this connection point for your community is an allowable peak hourly flow of 0.76 mgd. The current annual average flow at meter M059 is 0.33 mgd thus the current III goal for this connection point for your community is an allowable peak hourly flow of 1.2 mgd. Specific Requirements for the Sewer Element ofthe City's Comprehensive Plan The Council has completed a review of the current information in the city's existing comprehensive plan and has determined that the following information is needed to update the sewer element of the city's comprehensive plan/local sewer policy plan: . A sewer map showing the city's existing service area and proposed trunk sewer system through 2030 and ultimate sewer service area, . A table showing the projected population, households, employment and flow forecasts by interceptor for the city for 2010,2020 and 2030. . A description of the city's III program. What efforts does the city make in the maintenance of its sanitary disposal system? Does the city prohibit the connection of sump pumps, rain leaders and passive drain tile from the sanitary sewer system? 2. Surface Water Management In 1995, Minnesota Statutes section 473.859, subd. 2, was amended to make the local water management plan required by Minnesota Statutes section 103B.235 a part of the land use plan of the local comprehensive plan. Section 103B.235 provides that a local water management plan should be prepared once a watershed plan for the area has been approved. Section 103B.235 also generally identifies the content requirements for the plan. The local water management plan must be submitted to both the watershed management organization within whose watershed the community is located and to the Metropolitan Council for its review. For guidelines on the contents of local water management plans, please refer to Appendix B2-b ofthe Council's Water Resources Management Policy Plan. Council records indicate that Arden Hills is located entirely within the Rice Creek Watershed District (see attached map). The most recent version of the Rice Creek watershed plan was approved by BWSR in 1997. Arden Hills completed its update to its W- 4