02-18-1997 Planning Commission Minutes

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• MINUTES OF THE ORONO PLANNING COMMISSION MEETING HELD ON FEBRUARY 18, 1997 ( #7 - #2209 Spring Hill Golf Club - Continued) Ken Adolph of Schoell and Madson addressed the surface runoff issue. He reported that the three watersheds drain north to south to Long Lake. All stormwater will run through one of three proposed stormwater basins before it flows through the three culverts which run to Long Lake. Nutrient removal will occur north of Spring Hill Road according to NURP requirements and include 100 additional non -golf acres to the north. Runoff rates will be maintained to pre - development ratios. The irrigation well will pump into the basin and be drawn back out in a recycling pattern. McMillan asked if the basin will be maintained at a consistent level. Adolph said there will be changes throughout the day from the water being pumped in and out. The water level is anticipated to peak during the early evening hours and reach a low point in the morning. McMillan was told that the outlet would be monitored. He noted that the details on the nutrient treatments and runoff were included in the EAW Document. Adolph reported that the area where bluff impacts are anticipated was mined at one time resulting in the bluffs being man made. He noted the areas to be altered. There will be some retaining walls required within the tee area and the side of a slope will be cut down in order to view the fairway. Minor intrusion into the bluff will also occur by the driveway. Adolph said this could be changed with the use of additional retaining walls. • There is a 10 °lo grade in the driveway from Spring Hill Road requiring retaining walls on the uphill side. McMillan was informed that there will be no construction south of Spring Hill Road. • McMillan inquired if increased flowage is expected under Spring Hill Road. Adolph said the basin will be built to a size to handle the existing rate. He noted there is little hard surface being added. Higher runoff rates will occur on the greens but will be contained. The discussion was opened to the public. Dick Krueger, 1175 Willow Brook Drive, Orono, said his property abuts the golf course. He is concerned with the preservation of the Big Woods. He indicated that while a golf course was the best option, the golf course will come first before the preservation of the woods. He noted there will be a 50% decrease in the woods resulting in the Big Woods being lost. Krueger said the Big Woods originally ran from St. Cloud to Northfield and only 1100 acres remain in Hennepin County; 400 acres are being preserved and the remainder being developed. Krueger said the DNR had designated this 48 acre site for being undeveloped. 17