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,` Hennepin Parks Project BABX-91-589 � December 19, 1991 Page 9 ' ' The ower au er borin s were taken with the same e ui ment in en r P g g q p g e al accordance wrth ASTM D 1452, "Soil Investigation and Sampling by Auger Borings." The soil classifications ' and strata depths were infened from the cuttings brought to the surface by rotation of the auger. Samples of the auger cuttings were then seale� in a glass jaz. ' E.2 Soil Classification , Soils encountered in the borings were visually and manually classified in the field by the crew chief in accordance with ASTM D 2487, "Classification of Soils for Engineering Purposes," and ASTM D 2488, "Description and Identification of Soils (Visual-Manual Procedures)." A ' summary of ASTM D 2487 is attached. All samples were then retumed to our laboratory for review of the field classifications by a soils engineer. Representative samples will remain in ' our Minneapolis o�ce for a period of 60 days to be available for your examination. E.3 Groundwater Observations ' Immediately after taking the final samples in the bottoms of the standard penetration test borings, the holes were probed through the hollow-stem auger to check for the presence of ' groundwater. Immediately after withdrawal of the auger, the holes were again probed and the depths to water or cave-ins were noted. The borings were rechecked and backfilled just prior to leaving the site. 1 In the power auger borings, the bore holes were probed after withdrawal of the auger and the ' depths to water or cave-in were noted. The borings were rechecked and bacicfilled just prior to leaving the site. ' F. General Recommendations ' F.1 Basis of Recommendations The analyses and recommendations submitted in this report are based upon the data obtained , , from the soil borings performed at the locations indicated on the attached sketch. Vaziations occur between these borings, the nature and extent of which will not become evident until ' additionai exploration or construction is conducted. A reevaluation of the recommendations of this report should be made after performing on-site observations during construction and ' � �