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Community <br />Activity <br />Priority <br />Estimated Cost <br />Comments <br />LL -W2 <br />Remove sediment <br />Medium <br />$2,500.00 <br />Removal of accumulated sediment <br />should also remove reed canary <br />grass and seed source for reed <br />canary grass. <br />LL -W2 <br />Install sediment trap <br />Medium <br />$300.00 <br />Needed to reduce sedimentation in <br />at parking lot <br />wetland and could provide <br />secondary benefit to reduce <br />nutrients to Langton Lake. <br />LL -W2 <br />Direct street flow to <br />Medium <br />$500.00 <br />Berm to be constructed to direct <br />storm pond <br />flows to the storm pond and catch <br />basin. Currently drainage from <br />street is going over curb directly <br />into wetlands. <br />LL -W2 <br />Remove buckthorn <br />High <br />$500 -1,000 <br />Cut and treat all stumps with 25- <br />per acre, 40- <br />50% solution of Roundup or <br />100 volunteer <br />Garlon. <br />hours per acre <br />Community LL -W4 <br />Shallow Marsh <br />Qualitative Rank: Low <br />Acres: 0.01 acres (0.3 total) <br />This basin does not appear on the National Wetland Inventory map and may have formed as a <br />result of the trail forming a berm. This also could have been created as a storm pond and taken <br />on wetland characteristics. It currently has a skimmer structure that does not function due to the <br />lack of water in the basin. <br />The basin receives hydrology primarily from the 16 -inch RCP stormwater inlet on the east side <br />of the wetland. The dominant vegetation includes cattail, black willow, and an even age stand of <br />small green ash. Invasive shrubs include glossy buckthorn and amur maple. Since this wetland is <br />adjacent to the trail, cleaning it up could provide better aesthetics. Due to the connectivity to the <br />lake, removal of sedimentation and small trees and shrubs could provide for better stormwater <br />treatment. <br />City of Roseville 114 <br />Parks Natural Resource Management <br />