04/14/2004 P&Z Packet - Laserfiche WebLink

Home Search

Highland Meadows East 2nd Addition Page 2 April 8, 2004 City of Lino Lakes, Minnesota 2. As described in the previous review, the majority of the property's drainage is directed to the street (private drive) and the stormwater pond along the north side of the property. However, stormwater not directed to the pond must not flow to adjacent properties. A storm sewer pipe and swale have been added to the south side of the property to better intercept and direct drainage to the 21 -inch RCP. The Contractor shall adhere to NPDES Phase 11 requirements prior to engaging in any grading activities. The Contractor shall also submit a Storm Water Pollution Prevention Plan (SWPPP) to the City prior to engaging in grading activities. 4. 1 -year, 10 -year, and 100 year computations have been submitted, and are acceptable. 5 Outlet control structure details are required. Skimming must be provided for at least the 1 -year, storm event. 6. Emergency overflow locations and elevations must be shown on the plan for both ponds. Pipe outlet and inlet elevations at the ponds must also be shown, including pipe sizes and slopes. All catch basin and manhole structures must be furnished and provided per the standard requirements of the City of Lino Lakes. 7. No geotechnical report has been submitted. Groundwater levels are therefore unknown. Low floor elevations must be a minimum of 4 feet above the high groundwater and pond normal water elevations. According to the Anoka County Soil Survey, all existing soils are type Soderville Type A, and no wetlands exist on the site. All dwelling units must meet the City's minimum requirements for building elevations (low floor) with relation to groundwater and detention basin high water elevations. This would include 4 feet above normal water levels (including groundwater and detention basins), 2 feet above design flood elevations, and 1 foot above emergency overflows. The emergency overflow location and elevation must be shown on the plan for all ponds. Groundwater levels must be verified to adjust any elevations as may be needed. Additional Comments: The proposed street serving the property is designated as a private drive. However, the utilities (sanitary sewer and water) shall be maintained by the City of Lino Lakes. Therefore, the property owners or local association shall be responsible for maintaining the street, including snowplowing, street repairs, and other needs. The public utilities shall be constructed per the standards and requirements of the City of Lino Lakes. Ownership and maintenance responsibilities must be spelled out very clearly in the City/Developer Agreement, and a written agreement designating responsibility to the homeowners or local association as appropriate must be provided and recorded with each property. The private drive is included as part of Lot 19, and all of Lot 19 is designated as drainage and utility easement to cover the City utilities.