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1 <br /> Uctuber 11. 2011 <br /> Mr. Harvey Jubie <br /> I.&r1 Job No. I l-OG� <br /> Page 8 <br /> inleL 'I�he stom� inlet should he cuvered ��'ith a filter sock t� prevent scdiment fran entering dic <br /> storm se�cer system. "1'he filter soek should he cleaned periodically lu pre�'ent it I�um clogging. <br /> m�d should bc remuved aftcr thc consvuction ��ork is completed. <br /> 'I'he onsitc surficial soils contain a liigh percentage of fines and are sensitive tu nwisturo. A l�yer <br /> of cletm yunrr}� spalls should be placed, �.s required; over escavated areas and arcas of frequent <br /> traffic to protect tlic subgrade soils from disturbunce. <br /> Spoil soils shwlJ be haulcd off of tlic sitc as soon as possible. Spoil sails and importcd <br /> structur�l lill material to be stored on site should be lucated in areas �ti'hero tlte ground surf'uce is <br /> no stccper d�an l�°�� �rndc, and should bc covcrcd �vidi pluslic tarps securoly �vciglncd do���n <br /> �vith sandbags. <br /> EXCAVATION tiLOPl5 <br /> Under no circumstancr should exen�•ation slopes be greater tl�an the limits specilitd by local. <br /> stute and fcdcnl safcn� rc�ulations if���orkers have lo perl'urni constructinn work in csca��ated <br /> arcas. Utuuppoi2ed temporun• cuts greatcr than �1 fcct in hcigl�t sltould bc no steeper thun I H:i V <br /> iu the surlicial topsoil and ��'cak soils iu thc root zone, and no steeper tlian 1I2H:IV in the <br /> uudcrl}'ing dcnse sanJ uncl/or �iard silt soil laper. 'fhe soil w�its and tltc stability of cut slopes <br /> shuuld be veritied by a gcotcclmical cngineer duriug escavntion. <br /> Tlie above recommended cut slopcs arc undcr thc nssumption dit�t grouud�vnter seepage would <br /> nut be encountercd during construction. lf grouud��ater seepuge is en�wntered, lhe constru�tion <br /> should he immediatcly halted ��d the slope stability rc-evaluatcd. 'fhe cut slopes ump ha��e to be <br /> ilattened und olher mrasures taken to stahilize the slopes. tiurl'ace runolT should not bc allu�scd <br /> LIU & ASSOCIAT�S, INC. <br /> '� <br />