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ITCO ALLIED ENGINEERING CO. <br /> AN ALLIANCE OF INSTANT TESTING COMPANY AND ALLIED TEST DRILLING <br /> Jobsite and Laboratory Testing, Geotechnical Services, Commercial, Residential and Municipal <br /> 7125 West 126th Street, Suite#500 - Savage, MN 55378 <br /> Telephone: (952)890-7366 Fax: (952)890-5883 <br /> December 1, 2014 <br /> Atlashomes Phone: 763-425-3333 <br /> 14450 - 117�h Avenue North Fax: 763-390-0039 <br /> Dayton, Minnesota 55369 mark@atlashomesmn.com <br /> RE: 1575 Mapie Place <br /> Orono, Hennepin County, Minnesota <br /> As requested, a site visit was conducted on December 1 at 10:58 AM to evaluate and test soils for <br /> the construction of a single-family residence. A certificate of survey for the property, dated 12-26- <br /> 13, was available for review. <br /> At the time of the inspection, TMS Construction, had completely filled the residence with sand up to <br /> the bottom of footing elevation. Therefore, no bottom inspection could be performed. We have <br /> assumed that the excavating contractor did remove all uncontrolled fill and debris until native soils <br /> were reached as previously recommended. <br /> Additionally, no density testing was performed during fill placement as recommended. Therefore, <br /> the excavator was asked to perform test pits to various elevations so after the fact density testing <br /> could be performed. Four(4)test pits were performed, all to shallow depths due to static water level <br /> being around 3 feet below bottom of footing elevation. Therefore testing could not be performed on <br /> fill material below the water table elevation. The density tests all passed specification. The results <br /> will be conveyed under separate cover. <br /> To evaluate the foad bearing capacity of the soil, dynamic cone penetrometer tests (DCP)were " <br /> conducted at bottom of footing elevation. The (DCP), employs an eight kilogram (17.6 pound) <br /> hammer to drive a 20 millimeter diameter conical point into the soil, with the penetration recorded in <br /> millimeters per blow. From the DCP readings, a per blow, penetration average was recorded and a <br /> N-value derived. This N-value is an empirical relationship we have established to equate the <br /> dynamic cone data to the more familiar blows per foot(BPF)standard penetration soil boring test. <br /> Results of this test are shown below. <br /> Estimated N- Estimated <br /> DCP Test# Location Depth value Allowable Bearing <br /> Ca acit <br /> � SW Building 430 mm 23 > 4000 PSF <br /> Corner <br /> 2 NW Building 240 mm 25 > 4000 PSF <br /> Corner <br /> 3 Between Garage 255 mm 22 > 4000 PSF <br /> & House, Center <br />