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4. Stubbs Bay is approximately 200 acres in size, with nearly 60% considered to be littoral (15 feet deep or less <br />per M.R. part 6280.0100, sub 9). Generally, the littoral zone is the part of a lake where rooted aquatic plants <br />can grow, though the maximum depth at which plants can grow depends on water clarity and so varies from <br />lake to lake and even from year to year within the same lake. Stubbs Bay's maximum depth is 30 feet. <br />5. The bay's immediate catchment has an area of approximately 1924 acreS2, yielding a lake:catchment ratio of <br />approximately 10:1. The total upstream watershed for the bay is approximately 10,896 acreS3. <br />6. Agriculture, consisting of approximately 80% pasture and 20% cultivated crops, covers approximately 21% of <br />the land area in the catchment basin, with natural vegetation (forest, wetlands, shrub/scrub, and grasslands) <br />covering a third (34%)4. <br />7. Curlyleaf pondweed (Potamogeton crispus, CLP) and Eurasian watermilfoil (Myriophyllum spicatum, EWM) <br />have both been present in the lake for many years. The lake association has been treating them with <br />herbicides. <br />8. The Minnehaha Creek Watershed District (MCWD) classifies Stubbs Bay's water quality as poor due to <br />excessive phosphorus levels, and the Minnesota Pollution Control Agency (MPCA) lists the bay as impaired <br />due to excessive nutrients. The impairment results in nuisance algae growth that limits recreational use of <br />the bay. The bay is also listed as impaired for aquatic consumption due to mercury in fish tissues <br />9. Aerial photos show a large semi -ditched wetland complex that enters the northwestern portion of the lake. <br />Ditched wetlands can lead to more phosphorus loading, especially in urban areas where nutrients are <br />flowing into the wetland via stormwater, and the ditching process itself can release high -phosphorus pore <br />water from the wetland sediments'. <br />10. The overall trophic status for the bay is 60, which is high mesotrophic-low eutrophic. <br />11. Flowering rush (eutomus umbellatus) and starry stonewort (Nitellopsis obtusa) are found in nearby <br />waterbodies and could be introduced into the bay. <br />12. Zebra mussels (Dreissena polymorpha) were discovered in the bay in 2010. <br />13. The proposed method of the LID formation is by citizen petition. <br />1. MN DNR Lakefinder (https://www.dnr.state.mn.us/lakefind/index.html) <br />2. USGS Stream5tats (Stream5tats I U.S. Geological Survey) <br />3. MNDNR - Division of Ecological and Water Resources - Watershed Delineation Project <br />4. 2016 Land Cover Dataset, U.S. Geological Survey <br />5. MPCA Website, Lakes and streams water quality dashboard <br />6. Dennis Wasley, MPCA, Personal Communication <br />279 <br />