06/26/2002 Env Bd Packet - Laserfiche WebLink

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Agenda Item 5A Environmental Board Meeting Date: June 26, 2002 Topic: Stoneybrook Development/Preliminary Plat Background: The following minutes are from the March 27th Environmental Board Meeting. At that time the Stoneybrook Preliminary Plat was discussed and passed on to the Planning and Zoning Board. ACTION ITEMS A. Stoneybrook, Preliminary Plat, Rezone, MUSA/Comp Plan Amendment Asleson indicated that there were three development areas. He reviewed the background material. The property was guided for low- density sewered residential development in the Comprehensive Plan. The developer was requesting MUSA allocation, and rezoning from R -Rural to R -1X -Low Density Residential, and approval for a 111 -lot subdivision. There were 19.2 acres of wetland, with 2.06 requiring mitigation, which would be accomplished on site, and 58.87 acres of upland. The site was very wet, and infiltration techniques were limited, so water quality design was important. The water basin areas should be protected from compaction and planted with a buffer of native plants. Basin filtration capacities should be enhanced with organic bed establishment in flow areas, such as an organic pond area. Schneider inquired if the recommendations were binding. Asleson responded that they were only recommendations. Grundhofer pointed out that there was a development on Ward's Lake adjacent to this development, and asked if they were both aware of each other's impact and the combined impact. Asleson indicated they were being dealt with individually. Asleson continued reviewing the background material. The soil was very insensitive to ground water pollution, except for a small area in the South East comer that is in the Vadnais Lake Area Watershed District. Additional water volume discharges should be minimized. A sequencing plan and a management plan including a 3 -year contract with a landscaping company should be submitted. He urged that no soils should be hauled off the site or brought on the site without permission from the City. The sequencing plan should indicate responsibility for cleanup after the last house was completed including the fencing. The landscape- screening plan was submitted for Birch Street, but staff had concems about Colorado Spruce and the maple was not hardy for the soil. Grundhofer questioned if there were any acceptable conifers. Asleson stated that the only native conifers were white pines located in northern Anoka County, but were not native or adapted to this area. He conceded that a white spruce might grow if they wanted a spruce. O'Connell inquired about whether willows were native. Asleson indicated the water willow was possible.