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0 <br />(3'LO1:P_(3M :B. iZAA13 CIVIL ENC,INEEM ... <br />TELEPHONE 478-7797,8722 SAN PASQUAL WAY, STOCKTON, CALIFORNIA 95210 <br />The disposal site is in an area of Columbia loam soils which <br />are underlain with various silts and sands deposited by the SanJoaquin <br />River in the past. No test borings have been made. The disposal area <br />ground water table is controlled by the height of the water in the <br />River. This varies from about 3 feet above sea level (normal summer) <br />fin about 18.9r_?0 fept.above sea level in an extremely wet winter. <br />Since the bottom of the hole is about at sea level, about 3 <br />feet' of ground water is present in the hole during the summer months. <br />This will increase in depth during periods of high flow in the River. <br />No drainage control is attempted since the flucuation of the <br />water table due to the rise and fall of the river is the major factor <br />and this does not interfere with the operation of the disposal site. <br />No attempts have been made to monitor or control leachate since <br />the waste materials being disposed of are inert materials, for the <br />most part. <br />Since the ground water level is reflected or is apparent in <br />the existing hole, no monitoring wells are in use andro monitoring <br />program is being carried on. <br />The disposal site is and will be u.sed.for�farming purposes. <br />As portions of the hole have been filled, these areas have been leveled <br />in with the adjoining field and planted to grain or alfalfa. Upon <br />completion of the filling of the disposal site,.it is intended to <br />re -level the site and the surrounding fields into a single large <br />field of about 70 acres which will then be farmed as a unit. ' <br />The operation of -and control of the Disposal Site are entirely <br />in the control of -George B. Raab, Civil Engineer.. <br />Copies:of .what -permits that I have in 'my files have been <br />furnished you. <br />The surrouhding-areas are zoned and are used for agricultural <br />purposes. <br />Yours Truly, <br />George . Raab `— <br />0 <br />i ter �:r.:, r.l<a3.t r.r it<: :/ d5i3A i1 I ...J/' N rSx df E %�_h5 ..av_ii�2a/? : l •_ _c <br />1 :L _ti/ �''F. T .dna ,.yk1 5 <br />tF S k i . vt G Esi' <br />000040 <br />