10-25-2021 Council Packet - Laserfiche WebLink

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2 10/4/2021 VI. Old Business A. CBLID web page on City of Orono website: Nielsen discussed the CBLID web page that the City of Orono maintains for us. The City has been helpful, and does not charge the CBLID for presence on the site. Our web page is a good source of information. The CBLID web address is: http://www.ci.orono.mn.us/423/Carman-Bay-Lake-Im- provement-District-CBL. Or, simply go to the City of Orono web site, and do a search for “Carman Bay LID”. The site includes information on all documents that established the LID, the purpose of the LID, bylaws, board meeting minutes, annual reports, and more. Also there is a white paper, “Outline of Aquatic Plant Management for CBLID and Individual Homeowners,” that was recently created by Board Member Mark Kieper. In two pages it outlines what the CBLID can do and what homeowners can do, and answers frequently asked questions. All residents are encouraged to look at the website. VII. New Business A. 2021 Carman Bay treatment update Nielsen described the 2021 CBLID Bay treatment. This is the 4th year the CBLID has been treating invasive weeds (overall, the Bay has been treating since 2008, before the CBLID was established.) We have had good success over the years, and this year was no exception. Currently the LID is treating for two identified invasive species in Carman Bay, Eurasian Water Milfoil (milfoil) and Curly Leaf Pondweed (CLP). The CLP comes early in the season and milfoil later. Before treating, we must do a delineation survey. This survey is done by a separate entity, not our treatment vendor, that creates a map to show where the CLP and milfoil are located. Then our treatment vendor, PLM, and the DNR develop a treatment plan for us, and the DNR issues a permit. The CLP survey is done in early May, and we treated 20 acres on May 21st for CLP. Our Bay has 115 littoral acres (the area where weeds can grow, defined as areas of less than 15 feet water depth in the Bay.) We have been consistently treating about 20 acres over the last few years. We were told if we treat for CLP 7 years consecutively, there is a good chance we can eliminate it for a few years. This is encouraging news, as we are in our 5th year of treatments for CLP. The milfoil survey is done later, in June, as the milfoil plants start growing later. We treated for milfoil on June 14. This year we encouraged our vendor, PLM, to treat before July 4th whereas in 2020 the treatment was done after July 4th. Our goal is to make the Bay look good by the 4th, and it did look better this year with the earlier treatment. Going forward we will encourage treatment by the 4th. Whether they can treat or not does depend on several factors like wind, water temperature and when the milfoil starts growing. This year we treated 11-1/2 acres, last year 6-1/2 acres, and in 2019 37 acres. The acreage treated does fluctuate from year to year, and the variability makes it difficult to budget for treatment the next year. Even though our treatment area doubled this year, our costs went up only about 20%, or about $1,000. That is because our applicator used a combina- tion of ProcellaCor and Diquat. ProcellaCor is a powerful, focused herbicide that is specific for milfoil and very expensive, while Diquat is a broad-spectrum herbicide that is much less expensive. There are about 30 different varieties of plants in our Bay. As long as we can keep the native plant diversity in our Bay, the DNR will allow us to use Diquat. We want to continue to use it to keep our costs lower.