2003-168 Council Resolution - Laserfiche WebLink

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• Panatonni Development Page 3 September 17, 2003 City of Lino Lakes, Minnesota Preliminary Plat 1. The preliminary plat is subject to the review and approval of Anoka County and the Minnesota Department of Transportation. 2. The drainage and utility easement across the northeast portion of Lot 3 must be widened an additional 10 feet to accommodate the extension of sanitary sewer and water across the lot. The easement as presently drawn does include the sanitary sewer and water. However, an additional 10 feet is needed due to the depth of the sewer (over 20 feet), and the resulting trench depth and construction/maintenance space required. Grading Drainage and Erosion Control Plan 1. Because the site area exceeds one acre, the development falls under the new rules requiring an NPDES permit. The developer shall be responsible for the permit application, documentation and enforcement of the penuiit provisions, and full compliance in accordance with MPCA requirements. Silt fence and erosion control measures are provided on the plan. 2. There are various numbers on Sheet 2 referring to grading notes on Sheet 3 that are plotted very Tightly and easy to miss. The numbers should be darkened accordingly for better visibility. 3. The Pavement Design information shown at the bottom of Sheet 2 should refer to the commercial street section on Sheet 3. 4. No additional runoff from the site shall enter upon neighboring properties. If grading requires any work into the adjoining property, the Contractor shall be responsible for obtaining authorization as needed. 5. A pavement section for the parking lot is provided on the plan. However, the site plan identifies some portions of the drive and parking area as heavy pavement. The plan must distinguish between the two and provide a pavement section for both types of pavement (heavy duty and other). 6. Storm sewer flared end inlet and outlet elevations at all ponds must be provided on the grading plan. Drainage Calculations Comments were provided in the August 7 review addressing drainage calculations. Following are additional comments: 1 Emergency overflow locations and elevations for the ponds and infiltration areas have been identified further. The downstream pond (pond furthest north - Pond 1) has an overflow shown at an elevation of 897.0. Grading and overflow locations for the upstream ponds must be verified and shown to assure that any possible downstream blockages or back-ups will not result in overflows that will affect the building or other properties.