12/10/2003 P&Z Packet - Laserfiche WebLink

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• • Eagle Brook Church page 6 Utilities: A well will be drilled to provide water. The church will construct an onsite wastewater treatment system. The City has requested the assistance of the Anoka County Community Health & Environmental Services Dept. to review the final design of the wastewater treatment system. That department reviewed the preliminary design report and found the concept sound. The system must meet state and county standards. In the event that public sewer is available in the project area, it would be best for the church to connect. At this time, there are no proposals to extend public sewer or water to the area. It is always a good idea for any property owner to consider such a future connection when designing a site. The utility plan includes locations for future water and sanitary sewer connections. The City supports designing for a future connection. The City may require a condition of approval, as part of the conditional use permit, that the church connect to a public sewer within 24 months of the public system becoming available. As a condition of plan approval, utility related modifications and comments as set forth in the City Engineer's memo should to be incorporated into the final plans. Wetlands and Stormwater Management: Four wetlands are located on or partially on the project site. One is part of the shoreline of the lake in the southwest part of the site. Another is near, a depression surrounded by wooded upland. These two will not be disturbed by the proposed church project. A third.wetland is a swale in the northwest area of the site which is surrounded with tilled farmland. The fourth is on the northeast corner of the site is part of a larger wetland located mostly north of the site. These two wetlands are drainageways and have been degraded by agricultural runoff and are vegetated primarily with reed canary grass. The plans show a voluntary 25' setback from the wetlands. No building or pavement would be placed in these areas. Under City requirements, all wetlands must be protected with a drainage and utility easement. This could be enlarged to include the 25' setback. County Ditch 72 is an underground draintile, including the stretch crossing the property. The main branch of County Ditch 72 begins about 4300 feet southeast of the site. Branch 1 of the ditch begins about 2500 feet south of the site. These merge on the site, then drain into the swale wetland, which then runs into the lake. Currently, there is no pretreatment of runoff in the tile ditch system or runoff from the agricultural land before it flows into the wetlands and lake. The proposed stormwater design shows that runoff will be collected by a series of swales, infiltration areas /rain gardens, and stormwater ponds, providing pretreatment of all runoff from the development. • The Rice Creek Watershed District has review authority over the stormwater design. The county ditch will be rerouted, in a new underground draintile, around the development