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� <br /> - Pa e 14 ' <br /> AET #20-01080 g <br /> ' <br /> Cobbles and Boulders , <br /> Cobbles and boulders may be encountered during excavation. These cobbles and boulders may <br /> make excavating procedures slighdy more difficult than normal if they are encountered. Also, if , <br /> cobbles or boulders are encountered at footing grade, it may be necessary to remove them and <br /> replace them with compacted fill to allow full footing placement and to reduce point loads on the ' <br /> bottoms of the footings. <br /> ' <br /> �;�Maahon afetv <br /> All excavations and trenches should have safe side slopes if they are not braced or shored. These , <br /> excavations and trenches must be completed according to OSHA Regulations(Standards-29 CFR) <br /> 26 Sub art P "Excavations" (see www•osha.gov). � ' <br /> part 19 , P <br /> �nn�tr�ction Observations and Test� <br /> , <br /> The recommendations presented in this report are based primarily on the subsurface conditions ' <br /> found at our test boring locations. Since the soil conditions can be expected to vary away from <br /> the soil boring locations, we recommend on site observations be performed bY AET geotechnical ' <br /> personnel during construction to evaluate these potential changes. <br /> Soil density tests should be performed on all new fill placed in builcung and pavement <br /> areas to , <br /> document that project recommendations or specifications for compaction and water content have , <br /> been satisfied. Where fi11 ��� �YPe � �Po�t (such as sand bacl�ill for retaining walls) _ <br /> sieve analysis tests should be performed to document that the fill proposed for use meets the ' <br /> recommended gradation criteria. ' <br /> �� <br />