Consultant's Report - Minnesota State Legislature

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Rich Rezanka would like us to refere.nce the Whitefish chain of lakes (North of Ossawinnamakee Lake) with respect to potential infestation through overland transport. Matt commented that this reference could be included in the global outreach section. Tim Bratsrup clarified our explanation of the flow between Ossawinnamakee Lake and Pelican Lake. Water will not flow from Ossawinnamakee to Pelican, but can sometimes go from Pelican to Ossawimlamakee, although the water between Pelican and Ossawinnamakee is stagnant most of the time. Tim also confirmed that all other connections to the lake were not significant enough that they needed to be referenced or reviewed. Ryan Keith and Meghan Oh inquired about supplemental water quality data that would describe the water quality during the non-summer months. Gary replied that there might be temperature data from a different lake that could be utilized for the purpose of this report. There was a discussion about the specifications on the lake outlet structure. FishPro detected some discrepancies between reported numbers for the crest elevation and other structural design numbers for the outlet. Gary commented that he would talk to Glenn about the discrepancies on the elevations at the outlet and will utilize the sketch provided by FishPro to update the dimensions ofthe outlet structure. Matt asked about the location of the fisheries sampling sites and Tim replied that all four sampling points are in Pelican Brook, starting at the confluence with the Pine River and working back. Gaty clarified that the power point slides sent to FishPro by MN DNR reference the invertebrate sampling sites #1 and #2, not the four fisheries sampling sites. They both confirmed that Pelican Brook is 8 miles long, not 5.5 miles. In relation to description of the water body beyond Pelican Brook, Tim and Gary commented that there was a river survey completed for the Pine River. The group .decided to address inclusion ofPine River characteristics when Section VI is prepared. 5. Section IV. Ryan mentioned that we plan to add a glossary and Gary agreed that a glossary would be helpful. Gary was happy with the amount ofinformation in Section IV and commented that we do not need to elaborate, other than providing a glossary. Gary also commented that the ANS discussion does not add anything to the report in his opinion, but Tim thought that it was a nice reference. Gary decided that the section should not be removed but should also not be added to. 6. Zebra mussel discussion. Ryan inquired about the zebra mussels obtained from the sampling events. Gary commented that the zebra mussels were collected in the late summer. He also informed us that zebra mussels are typically found at about 10 to 17 ft in Ossawinnamakee Lake, which corresponds to the location of the thermocline (between 15 and 20 ft according to Gary). 7. Section V. Matt explained that FishPro's goal was to list as much as we could and that we plan to expand the section in relation to implementation.
Gary commented that he was not sure what we meant by "habitual characteristics" and Meghan replied that water quality characteristics might be a better term. Gary inquired about the supplemental treatments that will be included. Matt mentioned that Gunderboom manufactures large permeable curtains that could be utilized to prevent spread of zebra mussels from the lake into the outlet stream. He also asked if electrical barriers are encompassed in the treatment ofzebra mussels (not fish) and Matt mentioned that we would document more specifics on electrical ban'ier treatments. Gary commented that the management and monitoring should not be expanded. It is important to add it so that people see that it relates back to the treatment issues and MN DNR has been implementing these practices for a number of years. In relation to rapid response, the reader should get the impression that a rapid response does not necessarily lead to eradication or immediate treatment, but could include initiation of any procedure that would potentially aid in controlling nuisance populations. He also commented that page V-I7 in this section is restating what was previously talked about. There was a discussion about natural dispersal and the physical constraints of Pelican Brook. Matt commented that we could mention the turbulence factors in Section VI of the report and then proceed to discuss treatment options. We also briefly discussed the possibility of an altered habitat area in Pelican Brook. Gary informed us that MN DNR could look into developing such an area if they desired more information about this option. 8. Section VI. Gary commented that the population and dispersal control definitions are not obvious upon first glance. Matt verbally clarified the definitions, 'and Gary followed the explanation well. The group agreed that the definitions could be revised so that they are easier for the reader to follow. Ryan inquired about a specific point that could be utilized to initiate an emergency response plan, as discussed in the study. Gary commented that MN DNR does not currently have a particular point, but he intended to think more about this response point. In response to Ryan's question relating to treatment options that should not be considered, Gary mentioned that chlorine and bromine are not viable due to EPA regulatory concerns; chemical components with no regulatory approval are not worth spending time on. We also discussed electrical treatments; Gary would like us to include electrical barriers as a discussion point even ifthey are not probable. 9. The meeting was concluded just before 3:00 p.m. CST. The next meeting will be a conference call on a date to be determined, after the 95% submittal. Non-verbatim minutes were prepared by: Meghan Oh, FishPro/Cochran & Wilken, Inc. Cc: All in attendance
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List ofTables MINNESOTA DEPARTMENT
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I. Introduction Purpose MINNESOTA D
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Feasibility Study To Limit the Spre
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Hydrological Characteristics MINNES
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Outlet Structure MINNESOTA DEPARTME
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lBhsl Nllrtq Osso'winnomakee Pelica
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Age and Growth MINNESOTA DEPARTMENT
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Works Cited MINNESOTA DEPARTMENT OF
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Table V-1. Methods Available for Co
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Cavitation MINNESOTA DEPARTMENT OF
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Potassium Salts MINNESOTA DEPARTMEN
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Works Cited MINNESOTA DEPARTMENT OF
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Combined Treatments MINNESOTA DEPAR
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Feasibility Study To Limit the Spre
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METHOD OF INVESTIGATION MINNESOTA D
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VII-B. Treatment Alternatives Expan
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Message Page 3 of4 3/21/2005 best.
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I \ I iV!1';UJIOOiS for Estimaling
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FishPro Consulting Engineers and Sc
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./}' 03/16/2005 14:40 FAX 217585189
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Page 157: FINAL REPORT OF THE EFFECTS OF CUTR
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Page 186 and 187: VII-F. Meeting Summaries
Page 190 and 191: VII-G. List of Abbreviations Used
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Consultant's Report - Minnesota State Legislature

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