Excavation observations and compaction testing

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— :, �� ��tASi CYJ�� Braun Intertec Corporation � � INTERTEC September 18, 2009 Project BL-09-03483 i Christopher Thompson AMEC Geomatrix, Inc. � 14525 Highway 7,Suite 104 Minneapolis, MN 55345-3736 �� Shane Walgamuth �� Shane Homes ';� 3925 Excelsior Boulevard, Suite 5 r Minneapolis, MN 55416 i i , � Re: Excavation Observations and Compaction Testing � Farwell Residence 2933 Casco Point Road Orono, Minnesota Dear Mr.Thompson and Mr.Walgamuth: As you authorized, we have completed excavation observations and compaction testing at the above- referenced address. The purpose of the observations was to evaluate the suitability of the natural soils to support the proposed house and engineered fill. The purpose of the compaction testing was to evaluate whether the fill placed below footings was properly compacted to support the proposed house. `� Background The previous house on this lot was removed. After the demolition process was completed and footing excavations for a new house were started, petroleum contamination was encountered. After a series of soil tests were completed, recommendations were made to remove the contaminated soil from below the proposed new house. The excavation needed to remove the contaminated soils only impacted a small part of the house footprint. Excavation Observations The excavation to remove the majority of contaminated soils was completed on September 14, 2009. (The verification of the removal of contaminated soil was not the responsibility of Braun Intertec). The depth of the excavation to remove contaminated soils was extended to an approximate elevation of 938. _ � --1 _. __ _- -_. - - • Pr�,t't�In�� ,��,�rri<<r��,�ui,I �>>i�n��im�tit<<f <��1��n,�n, un<<� 1uS' �- , ' I