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-6- <br />June 23, 1975 <br />Mr. Dimke, Mr. Goyer, Mr. Hamilton, Mr. McLennan, and Mr. Cardinal, members <br />of the board of managers from Rice Creek Watershed were introduced to the <br />audience. <br />Mayor Johnson reiterated the problems the City is experiencing with water and <br />asked if these gentlemen could shed some light into the problems: 1. abnormal <br />heavy rainfall and heavy snow melt, 2. shopping center with two holding ponds <br />not working, 3. ditch partially filled in which needs cleaning. <br />Mr. Lyle Nelson, 2357 Sherwood Road, asked that Item 4 be added to the list <br />as another problem: 4. fill being deposited in the park. <br />Mr. McLennan drew a sketch of the shopping center location and indicated <br />the holding ponds and what was intended for drainage in the design as such. <br />He said the plan was brought before them by Robert Gottsacker, designer for <br />Paster Enterprises. The Rice Creek Watershed board of managers reviewed the <br />plans. The design was not done by Rice Creek Watershed, it was approved going <br />through the permit process of Rice Creek Watershed. The land was high and <br />sandy. Water percolated through the ground rapidly. On the storm event on <br />April 28, baffles on the roof were set wrong. That was corrected. The pond <br />to the south has been functioning normally. <br />Warren Johnson said water ponded on the north side of the center and did not <br />even flow into the pond. <br />Mayor Johnson stated the pond should be emptied in six to eight days after <br />a rain and was not at present functioning as designed. <br />Mayor Johnson stated that when both of the ponds were dug they were supposed <br />to be above the water table but when they were dug they were below the water <br />table. <br />Mr. McLennan said storage capacity in the ponds has not been available. <br />Water was pumped last Wednesday, and result were positive. Mr. Paster <br />proposed pond be emptied at a slow rate to drain ponds to desired level <br />in a matter of a few days regardless of the water table. On Saturday the <br />level of the ponds was not overflowing. <br />Mr. Johnson said where the driveway left the shopping center catch basin the <br />top of the catch basin was ten inches above the water in the ponds. On Friday <br />night at 10:30 p.m., the water was rushing over the top of it and also on <br />Saturday. <br />Mr. McLennan said the catch basin cover is to be replaced because the present <br />opening is not large enough. <br />Mr. Johnson said the first flood took tons of sand into the catch basin and <br />it is probably plugged because it sure is not taking the flow of water. <br />Mr. Casey said he can produce pictures of water running over the catch basin. <br />Mr. McLennan said Mr. Paster proposes running an underground culvert from the <br />north pond to the south through the culvert under Long Lake Road. <br />Councilman Baumgartner asked if this would be a permanent installation. <br />Mr. Rolfer asked about draining the ditch. <br />