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Jul 09 1� 10: 44a p. l ITCO ALLIED ENGINEERING COMPANY AN ALLIANCE OF INSTANT TESTING COMPANY AND ALLIED TEST DRILLING Jobsrte and Laboratory Testing, Geofechnica/Seryices, Commercial, Residenfia!and Municrpal 7125 West 126`h Street, Suite 500, Savage, Minnesota 55378 � Telephone: 952-890-7366 � Fax: 952-890-5883 July 8, 2010 ' , Mr. Kevin Shultz Cell: 612-710-4656 5620 Girard Avenue North Brooklyn Center, Minnesota 55430 RE: 3980 Cherry Avenue Orono, Hennepin County, Minnesota As requested, a site visit was made on July 7, 2010 at 10:12 A.M, to evafuate and test soils for footing placement, at a single-family residence under construction. At the time of the inspection, all . footings had bee� poured, with the exception �f a 10 foot section at the east end of the south . footing line. The referenced area had been formed for a standard strip footing, at 21" x 12" and reinforced with (2) - #4 rods. Soils providing support for the footing line consisted of approximately 2 '/2 to 3 feet of fine loamy sand engineered fill, underlain by native clay soils. To assess the strength of the granular fill, a 5/8`h inch diameter smooth probe was used to penetrate the base of the footing line at randort�. With fulf body weight applied, the probes indicated penetration, consistent with soils of acceptable consolidation. To evaluate the native soils below the footing fifl zone, a 1 5/8'h inch diameter fluted hand auger probe was put down at the base of a sump excavated at the southeast comer of fhe pad. The test was conducted at approximately 4 '/ feet be{ow'footing elevation, pe�etrating 2 fee�of a stiff, mottled, and cohesive soil. The load bearing capacity of the engineered fill providing support for the proposed footing was evaluated with a dynamic cone penetrometer test. The dynamic cone penetrometer (DCP), employs a eight kilogram (17.6 pound) hammer to drive a 20 millimeter diameter conical point into the soil, with the penetration recorded in millimeters per blow. From the DCP readings, a per blow, penetration a�erage was recorcie� and a N-value deriveci. This N-value is an empirical relationship we have established to equate the dynamic cone data to the more familiar blows per foot (BPF) standard penetration soil boring test. , DCP Test —Mid-point of unpoured section (East End South Footing) � DCP Depth Per Blow Avc�. / N-Value Estimated Load 469 MM (18.5") 24.6 MM / N-12 3975 PSF In our opinion, the observed and tested soils are acceptable, and would be expected to meet an assumed minimum bearing capacity requirement 2000 PSF for the proposed construction. Our observations and subsequent soi! assessment on this date is limited in scope to soil conditions for the zone of engineered fill, and subgrade soils within a shallow sump excavation, as evaluated