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Hilbelink/Vogt - Site Evaluation for Proposed Subdivision <br />December 22, 1987 <br />Page 2 of 5 <br />2. After attempting to transfer the borings to the proposed <br />subdivision layout with topography and soils overlay <br />(something that the developer should have done as part of <br />the site evaluation submittal) it is apparent that boring <br />logs indicate soils inconsistent with those mapped in the <br />Hennnepin County Soil Survey. <br />We have found similar inconsistencies in the plat of <br />Woodhaven, to the east. However, a conscientious and <br />thorough soils report would have noted the inconsistencies <br />up front. Because of the omission, the credibility of the <br />report is diminished. <br />II. Specific comments on specific lots. <br />Lot 1,. Block 1 <br />Based on the diagram submitted, the proposed mound site <br />encroaches into the proposed house site. Staff questions whe�her <br />a trench system is apprDpriate at the primary site given the <br />LeSeur loam soils mapped, which normally ha-!e a seasonal water <br />table at 31. <br />Additional information required: <br />a) Staff to do confirmative boring in primary (trench) <br />site; <br />b) Additional boring and site review needed to confi m that <br />mound can be moved further north or west without encroaching <br />on drainageway at north end of lot, in order to give more <br />flexibility in siting a house. <br />Lot 2, Block 1 <br />This lot has an existing house with a trench drainfield system. <br />The alternate site, in a Lerdal loam soil, will require 1 mound <br />system as proposed. <br />