02/11/2004 P&Z Packet - Laserfiche WebLink

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Marshan Estates Page 3 February 4, 2004 City of Lino Lakes, Minnesota • An 8 -inch diameter sewer is adequate in size for the proposed improvements and area served. However, upsizing of the pipe to further flatten grades and gain additional depth can be done. However, ejectors would still be necessary for the properties as mentioned above. 5. A sewer stub for eventually extending the sewer further south beyond Marshan Lane may not be necessary for the following reasons: • In accordance with the City's Comprehensive Sewer Plan, it is not anticipated that a significant amount of additional area would require collection from this extension. In addition, the current Marshan Lake Industrial Park (Panattonni), located just to the south of Marshan Lane, has extended sewer to the east side of Lake Drive for future collection of those properties. • An extension of sanitary sewer further south would require crossing County Ditch No. 10, which is immediately south of Marshan Lane. According to the survey provided, the bottom of the ditch is 5 feet below the sewer invert at Town Center Parkway. If sewer were to be extended to the south of County Ditch 10, a small lift station would be needed, according to the survey information provided. • 6. The alignment and location of the water and sewer along Lake Drive has not yet been firmly determined, pending completion of the utility design and review by Anoka County. However, it appears additional right -of -way and/or utility easements will be necessary to construct the utilities, and will be required by the County. The existing right -of -way currently extends 40 feet from the center of Lake Drive. It is recommended at this time that at least 30 feet be provided. Per the plans provided, 20 feet of additional right -of -way is provided along with the 10 foot standard drainage and utility easement. This may be adequate. However, the actual required amount of dedication will be subject to the review of Anoka County, including their review of the Preliminary Plat and proposed Utility Plans. A permit from the County will also be required for any work within the County right- of -way. 7. The sanitary sewer and services must be placed a minimum distance from existing wells per Minnesota Department of Health requirements. Grading Plan 1. The proposed site development results in grading (disturbing of property) of over 1.0 acre. The development shall therefore be subject to the requirements of NPDES (National Pollution Discharge Elimination System) as most recently adopted by the Minnesota Pollution Control Agency (MPCA) and the City of Lino Lakes. A Stormwater Pollution Prevention Plan (SWPPP) will also be required. Because the site is less than 2.5 acres, a review and approval of the Rice Creek Watershed District (RCWD) will not be required.