03-14-1994 Council Packet - Laserfiche WebLink

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To: From: Date: Subject: Jeanne A. Mabusih. Building & Zoning Administrator Stephen Weckman. On-Site Systems Manager January 13, 1994 ;!fl90l Tandem Propenies - Septic Review I have reviewed the septic system testing and design information for phase 1 (25 lots) on the Coffm and Dickey properties and have the following comments. All 10 of the first phase lots for the Coffin property have been tested and approved for primary and alternate drainfield sites suitable for a 5-bedroom home. These sites meet all soil, topography, drainage and setback requirements of the City of Grono and the Minnesota P^’lution Control Agency Standards, Chapter 7080. The 15 lots in the first phase for the Dickey parcel have tested and approved primary and alternate drainfield sites suitable for a 5-bedroom home. Of these 15 lots, 13 have drainfield sites that meet all soil, topography, drainage and setback requirements of the City of Orono and the Minnesota Pollution Control Agency Standards, Chapter 7080. Lot 2, Block 2 has been granted a variance for an 8% slope on the alternate drainfield site and an old well pit must be properly sealed. Lot 7, Block 2 has been granted a variance for an 8% slope on the alternate site. A January 7, 1994 letter from Bonestroo and Associates indicates that an outlot should be platted along the east side of Old Crystal Bay Road for a bicycle trail. Although no trail outlot is shown on the survey, the pnmary drainfield sites for Lot 2. Block 1 and Lot 3, Block 1 could be moved east by 5’ in order to allow a trail outlot to be included while still maintammg a 20’ setback to these drainfield sites. The two parcels have been surveyed by Coffin and Gronberg, Inc. dated January 7, 1994 and include all propertv lines, drainage easements, drainfield sites, and heme sites used for this review. Based on the above information, I would recommend approval of the subdivision.