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FILE No. 280 08/17 '99 14:27 ID:LPNIERFRJ05500 rrrs s <br /> Aug-17-912 11 :23A 6roWn Mills. Inc. 916 l-3464 P.03 <br /> August 17, 1949 <br /> RMI Project No. 99S-116 <br /> induced widening of the drilled pier!rola(which could then encroach into the arca of the nearby <br /> sanitary sewer leach line), we recommend casing be Used to maintain bole stability, especially <br /> from near stn 14ce to depths of approximately 7 to 10 feet below existing site grade. Further, <br /> if other excavations will be performed within the vicinity of the nearby sanitary sewer leach lite, <br /> these excavations should be shored or braced to limit Ilse possibility of caving-induced widening <br /> of the excavation which could then encroach into the area of Use nearby sanitary sewer leach <br /> line. <br /> i <br /> In addition to stability considerations, we recommend the presence and location of the nearby <br /> sanitary sewer leach line be made available to tic contractor so that he may take appropriate <br /> precautions with respect to on-sie worker's health and safety as well as possible provisions to <br /> remove and properly dispose of any sails which may be encountered which are contaminated <br /> with wastewater. I <br /> i <br /> It you have any questions regarding this letter or tread further information, please contact tie <br /> undersigned. <br /> _ _ I <br /> I <br /> Sincerely, Its i <br /> 6t R <br /> Brown & Millar foe. 4 <br /> t3 rEn P <br /> Eno <br /> • i <br /> I <br /> R. ith Brown, P. <br /> Principal <br /> —. 4 <br /> 1 <br /> I <br /> i <br /> I <br /> I <br /> r <br />