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2015-04-07 P & Z Packet
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2015-04-07 P & Z Packet
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Priority Lakes List <br /> The Priority Lakes List provides useful information for the management of the region's lakes and <br /> their watersheds. The Priority Lake List: <br /> • Indicates the criteria for categorizing a lake as a Council Priority Lake. <br /> • Identifies basic lake characteristics that can influence the management of the lake and <br /> its watershed. This type of information can be used to rapidly assess, on a large scale, <br /> the appropriate management techniques and challenges for a lake and its watershed. <br /> For example, it can be useful in reviewing watershed and surface water management <br /> plans, or prioritizing limited funding for lake/watershed improvement projects. <br /> The lakes that were on the Priority Lakes List for the 2030 Water Resources Management <br /> Policy Plan are included in the updated priority lakes list for the 2040 Water Resources Policy <br /> Plan, as well as 20 lakes that are new to the Priority Lakes List. For this Policy Plan, the <br /> reference "Spring Lake / U.S. Lock and Dam #2 Pool" was changed to "Spring Lake" because <br /> Spring Lake is just a portion of the much larger Pool #2. <br /> Priority Lakes Criteria <br /> The lakes on the Priority Lakes List were chosen if they met at least one of the following criteria: <br /> • High regional recreational value which includes the requirement that the surface area of <br /> the lake must be at least 100 acres <br /> • Water supply lake <br /> • Good water quality <br /> • Special significance for wildlife habitat <br /> High Regional Recreational Value. A lake is considered to have high regional recreational <br /> value if: <br /> • The lake has a public boat access. <br /> • The lake has an adjacent park. <br /> • The lake has a surface area of at least 100 acres. <br /> Water Supply Lake. A lake is considered a water supply lake if it is listed as having a drinking- <br /> water beneficial use as defined in Minnesota Rule 7050 and it is identified as a drinking water <br /> source (principal or reserve) in a water management plan by a local unit of government. <br /> Good `Fater QuaNty. A lake is considered to have good water quality if the annual summer <br /> (May-September) trophic status indicators are relatively low, as follows: <br /> • Mean water clarity (Secchi transparency)greater than or equal to 3 meters. <br /> • Mean chlorophyll-a (trichromatic) concentration less than or equal to 10 ug/L. <br /> • Mean total phosphorus concentration less than or equal to 23 ug/L. <br /> Good water quality lakes are restricted to those with a surface area of 10 acres or larger. <br /> Wildlife Significance. The Council's recently updated comprehensive development guide, <br /> Thrive MSP 2040, discusses the importance of ecological resources, habitat, and a healthy <br /> natural environment. There are several lakes in the Twin Cities metropolitan area that have <br /> special significance for wildlife habitat, including some where wild rice grows. A lake is <br /> considered to have special significance for wildlife habitat if it meets at least one of the following <br /> conditions: <br /> 66 <br />
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