2012-02-16_AgendaPacket - Laserfiche WebLink

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tLake Vegetation Management Plan Section VI: Treatment Plan (map marked with areas where control of plants is anticipated): A. Commons Area ( >150' from shore) ❑ Mechanical Control: Maximum total treatment acresl46 acres to be treated, 50 % of littoral area Narrative: Mechanical control of aquatic plants is allowed up to 50% of the littoral area (M.R. 6280). The cumulative amount of mechanical and chemical aquatic plant control may not exceed 50% of the littoral area. Currently, mechanical treatment is not anticipated. ® Herbicide Control: In 2010, an estimated 146 acres to be treated, —50 % of littoral area. For a detailed description of the treatment plan see Appendix 1. A second treatment may be authorized if the 1st treatment has failed or conditions have changed and Eurasian Watermilfoil has proliferated post initial treatment. The DNR will consider all second treatment requests and are pending inspection by the DNR. ❑ Other: # # ## acres to be treated, # # ## % of littoral area Narrative: Traditionally the Lake Owasso Association has treated a 10 acre area off shore in the south arm of the lake and a 5 acre area in the north section of the lake. The DNR will consider and grant such requests on a case by case basis, depending on the plant species and abundance in the requested areas. B. Individual Permit Standards Chemical Treatment of Submerged Plants: 50 feet or half of the frontage whichever is less feet along shore 50 feet lakeward. Narrative: Any permit applications received from riparian landowners for chemical treatment of native submersed plant on Lake Owasso after the lake -wide treatment will be considered on an individual basis. Removal of native submersed vegetation will be limited to only that area necessary to allow reasonable use, with the maximum area being no more than 50 feet wide, or half of the owner's frontage whichever is less, by 50 feet lakeward plus a 15 foot wide channel to open water that may extend from the lakeward side of the 50 x 50 foot area. No removal of sparse native vegetation through the use of chemicals will be permitted. Permit requests are subject to inspection and the aforementioned limits are maximums allowed for native species control. Selective control of invasive submerged aquatic plant species may be allowed to treat up to the entire frontage of the shoreline given that the stand of invasive species is nearly a monoculture, very dense and matted, and there are not many native species present that would be affected by the "selective treatment ". Lake Owasso LVMP 4