03-21-1994 Planning Packet - Laserfiche WebLink

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r David Vergeyle March 15, 1994 RESULTS Boring Logs indicating the depths and identifications of the soil strata, penetration resistances and ground water observations are anached. The strata changes were interred unless observed in the samples. Please note that the depths shown to the ^ approximate, the transitions in the field may vaty between bormgs and may not be sharply defined. We found approximatelv 4 feet of fill in boring 1. This fill was placed over the existing topsoil. soils below 4 feet were firm sandy clays and dense s^nds "iih gravel We found 6 inches of topsoil in bormg 2 overlying sandy clays at^ sands simi a to thc« found in boring 1. We did not encounter fill in boring 2. Both borings ended at 17 teet. We did not encounter groundwater in either boring. RECOMMENDATIONS The fill found in boring 1 is not suitable for footing suppon. The fill should be removed under all footing and slab areas. The sandy clays and deme sands found below W2 feet in bonne 1 and telow th. ‘ tonng 2 are suitable tor footing support. If fill is required under” footings or slabs, the topsoil must be removed prior to fill . fill should be non-organic and be placed in 1 foot lifts and compacted with a self-prope led comoactor to a minimum of 90% Modified proctor density. The fill should be tested at foot ^vertical intervals We recommend retaining the services of a competent soils engineer to fbse^eT removal of the topsoil and placement of the fill. Any excavations for placemen of fill that will support the footings should be oversized laterally I foot for each 1 placed The proposed structure should be placed so that there is at least a 1 H o p between a point 2 feet outside of the footing and the toe of the slope. The proposed footings should be sized for a maximum allowable soil bearing pressure of '»500 pouLs per square foot. This sizing is applicable footings placed on naturally soils or on compacted fill lowest » of 948 and the base of the slope is approximately 934. a difference of 14 fee . Th approximate distance between the strucmre and the base of the slope is 30 feet. The exist n, Tpc is approximaicly 2 honzonml .0 I venical. The site as curremly designed is smuble for placement of the house. LIMITATIONS OF EXPLOR.ATION PROGRAM The observaiions and recommendations of this report are based on the data obtained from 2lundard penetration borings. Soil conditions between borings may ditfer from our 0b«rva L No exploration program can fully disclose all subsurface conditions. The “oS described can only be considered accurate at the locations and elevations sampled.