10-07-80 CCM - Laserfiche WebLink

Home Browse Search

LAKE ELMO CITY COUNCIL MEETING, OCTOBER 7, 1980 -4- .LITTLE SUNFISH./CTMA.RR.ON FLOODING PUBLI.0 IiFARTNG: T^ayor Armstrong opened the public hearing at 8:15 p.m„ Engineer Bohrer presented his Preliminary Report on Alterr.Lat.ives to remove the flood waters from Little Sunfish and _protect the Cimarron Treatment Pl.ant,. Alternatives include: a flood protection dike around the treatment plant - estimated cost $15,000; 2„ pumping the flood waters to Horseshoe Lake - estimated cost $10,800; 3, construction of a controlled gravity outlet to Horseshoe Lake - estimated cost $33,200. The Engineer'stated several other alternatives were considered but were not feasible. These are listed in his report. The Engineer recommended Alternate 1 as an immediate means of protecting the treatment plant this fall and Alternate 3 be initiated in the spring of 1981 as a permanent measure, The Engineer stated, without some improvement, the treatment plant stands. a 90% chance of being flooded by the spring run-off. Audience Comments: Tom Noyes, Bonestroo and Associates, questioned the feasibility of Alternate I and its impact with possible damage,on the treatment tank if the water outside the dike surrounding the plant were raised 5 ft. The Enuineer did not believe this would be a problem unless the soil underneath the tank is saturateda He does not believe this to be the case, :but, agreed this should Pe.Studied.further. Noyes recommendM pumping be started, as soon as possible. Cimar.ron's position is that the City adopt Alternatives 2 and 3. Mr. Taylor stated that if there is any possibility of getting the pipe from Little Sunfish to Horseshoe in the ground before winter it would be the best solution. Mayor Armstrong said Alternate 3 cannot be initiated without Valley Branch and DNR approval. Mrs. Leslie asked where the additional nonding areas are in Cimarron that were mentioned when the Citv considered using Cimarron"s treatment plant? Mr. Noyes indicated he was not aware of additional ponding areas on Cimarron's property. Additional ponds were not considered necessary at the time. Al Lehman, Civil Engineer, 3M - has been monitoring the water levels on Tartan Park's property since 1975, He feels it will be necessary to pump much more than the proposed 125 acre feet because of ground water storage. Valley Branch has required them to handle their excess water on -site and not discharge it downstream. He expressed concern about damage to property in West Lakeland, Councilman Mottaz said he does not think permits from Valley Branch and the DNR for Alternate 3 could be obtained before six months.