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To: Jeanne A. Mabusth, Building & Zoning Administrator From: Michael P. Gaffron, Asst Planning & Zoning Administrator Date: March 30 , 1990 Subject: #1519 Fullerton Properties - Willow Drive/County Rd 6 Sketch Plan - Septic Concerns I have transferred the soil survey information to a copy of the proposed plat, and would make the following preliminary comments for sketch plan review: 1. Soils on the west half of the site are mainly LeSueur loam, slopes generally 6$ or less and water table generally no higher than 3' below the surface. The lots designated as Lots 1 , 2 and 3 , B1ockX�and Lots 1 and 2 of Block�2',� have substantial areas of LeSueur loam and probably will find suitable sites for mound systems. 1 2. Lots 3 and 4 , Block ,2' contain areas of Kilkenny and Lester clay loam soils which generally are a little heavier clay soils. Again, these lots would probably require mound systems and both appear to have some area of acceptable slopes. __ _ _ __.. ,_ _.. ._._ .. _._ _._ _ .__. ..___ .____..._.. �._-�._,_ '� 3. The existing farmstead in Lot 5 , Block �2' ( 2225 Sixth,'� Avenue North) has one 1, 000 gallon pre-cast concrete tank � west of the farm house, and drainfield that is unknown. � Notwithstanding concerns about drainage through the west end ; of this lot, there may be suitable expansion sites west of ; ; the house. The higher ground on which most of the buildings s :are located is a Hayden clay loam, often requiring mound � systems due to s low perc rate, with the areas west of the� house appearing to be a Glencoe silty clay loam which often `j�, precludes the use of an system. y _.,.--_...--�"' .�.. ..., _.. �..._.�_.. ._.._... .,.._. .___ ,.,_ ... .._....�. .. _ . 4. Lots 6 , 7, 8 and 9 of B1ockJ� contain substantial areas of Glencoe soil which often has water table at the surface during the wet season. Lots 6 and 7 would appear to have a drainageway from the north bisecting these lots into a front and rear portion. Lot 6 may have some mound sites on the fringes of the Glencoe at the front or rear of the lot. Lot 7 will have an extremely difficult time trying to find drainfield sites that are more than 75' from the designated wet land area. Lots 8 and 9 are a lso quite low, containing mostly wet soils. These two lots might find suitable mound sites near the road, probably ending up in front 'yard areas. Both Lots 8 and 9 have a number of drainage concerns, as they are the receiving area for overland flows from the west.