09-28-1992 Council Packet - Laserfiche WebLink

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Milfoil Update hv l\ttiicia McCullough, U'fivca/fl Bay From the DNR... In a discussion with Ti>in Sak. Milfoil Cin^rclinaior for the Department of Natural Kesouacs, the following update was obtained regarding the milfoil problem in general. • There have been fewer re^K>fts of new infestations of lakes and waterways this year than last; in 1991, there were reports of 14-15 new lakes infested as well as several ptxils on nver backwaters; this year there have b^n only 5 new lakes reporting infestation as well as the St. ('roix River The weather could be impacting this. With the cooler summer, the growth is slower and mav not bt discovered until next year. Divunguishing milf(M! from other aquatic growth is not possible until it reaches the surface. • Three lakes had programs for treatm^^nt this past year that were cix>pcrative efforts among the takeshoiv c ;n'*rs, the conservation districts, the County and tl«; State. Three lakes that were treated were Crooked Lake in Anoka, and Little Green and Lllen Lakes in Chisago ('ounty. After 3 months. Crooked Lake still appears to be free from milfoil, but a 12-18 month period will be necessary before reaching conclusions. • The legislature has provided luntling for research for milfoil eradkatMso for the past several years, even though the Stale has been in a defk ii budget ntuation. The Department of N.nural Resources has made advMKei m funding fi>r milfoil ircMment leseardi. • The mifor ttttif rritiiH lo fifid itir moai effective tfcaimant for die dottars expended to ireai mtifml CtwiMcai irraimcids hast been used lo dale m as macRaaacal rrnvuvai through harsetung ItBtogxal ifiWMi. eg. through hmgut or msuct patfiogeiis. m being tailed by the DNK and tn a foioi program amh the University of Mimsesuu There baa not been enich pnvait msai^rmeai IT. ttut type of treatment bcxaMie the rket It net f|jL\ A* Cipitee eeeifired eie poft ^ From the LMCD... Gene Strommen. Lxccutivc Director of the Lake .Minnetonka Conservation Distnet, provided the following update on the status of the proposed treatment program for St. Alban ’s D.iy. • The program is progressing. • The LMCD has completed its aquatic plant inventory, funded by the LMCD. to develop the needed baselmc data This study cost $7,500. Two major steps need to occur before the treatment program becomes a reality: • ('oncerns have been raised about the impact of the proposed treatment program on the fish population, particularly the young of that year, or new hatch. Discussions arc currently under way with the DNK Fisheries division and the Minnesota Sp«>rtfishtng Cungrtu to work together to raise fTH>ncy privately lo d** a fish inventory ilus fall, as well as a '''*w hatch inventory next Spring, and the following year, to ttetermine if there is any adverse impact The anticipated cost of this inventory is SI0.000 per year for two years The threat, it appears, is not the chemical ’s impact cm the ycHing hatch, tnit the removal of cover, e g., milfoil and vHher aquatic vcgeution. makint tbc young hatch more vulnerable to the prediKir fulL • The funding needs to be secured. The cotf of the treaiment program will be spproximalely $30,000. Hennepin Conservation Ditfnct has ptedged emo* half of the costs thren^h nudehmg funds, m appnmmateiy $15,000 The LMCD will to takeahorc owners m AJban'i Bay. BKiiiding both mannas and pnvaie homes, lo lane die balance of approtimaieiy $15,000 For many owners, the raquemed conmbution will aoi he iMi^ Afferent hwa dm money dmi duty hove tlMCD 3