06/27/2001 Env Bd Packet - Laserfiche WebLink

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• ENVIRONMENTAL BOARD MEETING APRIL 25, 2001 Donlin expressed concern over a 500 year event, and wanted to know where the water would go in those instances. She noted there had been three such events in 10 days in 1992. Mr. Payton indicated a 100 year event of 5.9 inches would discharge over a 48 hour period. Emergency overflow would move toward Highway 35W, the flow direction would not change. Trehus indicated the water would eventually flow into George Watch Lake, and in an event over two inches would move too quickly. Mr. Payton explained he did not have the numbers for the water volume. The total capacity of the pond was 9.9 acre ft. of storage, however, all surfaces receive water. He explained the flow will either go over the land or underground. Trehus urged a reviewal of the Environmental Assessment Worksheet by the Board before the City Council approved the project. Asieson noted the proposal was to be submitted after the present meeting and it would receive approval before the next meeting. Wessel stated final approval was to come in July. O'Connell inquired about the treatment of oils and gases in the water. Mr Payton explained that because petroleum products float, there would be a skimming feature. The Board discussed lighting and signage. Kukoneninqui:red whether Target would be willing to use a non - backlit logo. Mr. Payton answered the sign should be visible to the East and West where there were mainly busine es.. Vice Chair Mach asked if all the stores had -filar lighting and signage. Mr. Payton responded the store plans accommodate the requirements of the planning and zoning in each city. The issue of parking spaces was discussed in 'relation to the ordinances and the requirements of the stores. 'iffiin Grundhofer :noted the City requirements were exceeded by 103 spaces. Mr. Payton address edtthe green space in relation to parking. He explained that questions remain as to where the green space is distributed. If within the parking lot, they could create visual barriers causingxaccidents. If it were a block on the side, it would create an unbrokenpavement. Trehus urged Target/Ryan to reduce the number of spaces and explore green parking, because ofie potential degradation of George Watch Lake. Mr. Payton answered impervious of green parking was difficult to maintain with shopping carts, and dirt mud tracking in the stores. 3