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K <br /> Margin of Margin of 1 1/4",44"deep, '� J Building <br /> Water(projected) pi <br /> excavation exposed s ®' � 801 <br /> � <br /> 4" 40"dee — .t. VTank vent,40"deep <br /> ol <br /> ® ® ® <br /> v to <br /> Pievei alar ®,../ ®� — r casing Notes <br /> !�� <br /> Water 8",36" I <br /> Culvert ®®� ®® 1.Dimensions shown <br /> r 1 sgctlon ®®® , ® ® � are approximations <br /> j � ® ® l ® ® Y 2.Piping within the <br /> 1 nk Standpipe tosur�ace ®® , ♦ j "Margin of exposed <br /> rupture <br /> , •••- -----------,���-------- ® / ', Sample® i / pipes"has been <br /> Electrical(?) �C p er ®a.- ----rt----------•' ® i <br /> 1 1/2",34 deep '� a Iron .Tank 801-R2U1 projected shape hole ®,�® located visually <br /> valv/,�I (4000 gal,54"to tank top from surface) 3.Sources of information: <br /> ♦ _____.. 1. .............. -Evidence of <br /> piping in <br /> .� r'•'' ®® : : : : : : : : : : : : : - - : - excavation <br /> Electrical y ... ®-^-' : : : : : : : : : : : : : : : : : ———————————�——— -Data regarding <br /> 31/2",34 deep s'' : ' ' : : : : : : depths and uses <br /> of piping provided <br /> 21/2",40"deep by utility locating <br /> r <br /> services <br /> ,'' ,••� : : : : : : : : : : : : : : : : : i 4.Pipes known,not <br /> To storm sewer : : : : : : : : : : : : : : : : : ' located: <br /> 4 1/2",40"deep�/ ••-------------------------------------------- .....------.................... i Legend Y< <br /> 7' <br /> � Concrete slab :� -East-west pipe <br /> Projected tank shape(8000 gal)� �.�" � w run draining <br /> ® {tank not seen) Shoring building into <br /> i Steel Cover side or end of <br /> Scale: Feet r`{ 4000 gal.tank <br /> East-west pipes <br /> Electrical,30°' connecting top of <br /> (not seen) 0 1 3 5 8000 gal.tank <br /> Figure 1. Building 801 washdown retention system showing excavation(9/89). RECEIVED <br /> NOV 8 1989 <br /> ENVIRONMENTAL HEALTH <br /> PERMIT/SERViCES <br />