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71
<br /> hj 4y3
<br /> ---<---�--...�alll�...f...�.?-'.=L•��.,�...�rr�..,..a:i;2it`,'��{J',.,.�...��.� � '` ,� �. I - .. 1�i:., _.�-; �_
<br />,fin t ayrri:
<br /> SX �f
<br /> Pecific data on other domestic ;veils
<br /> r +j but communications in the arca is not available,
<br /> ' YF^ wi to a
<br /> local watLr well driller revealed that
<br /> produce from aquifers below 100 feet.
<br /> 5 Fa
<br /> {r
<br /> iH TO WA ABLE:J1CP{ TER T
<br />`r;tir:�?��• i;" Accordin published
<br /> hg
<br /> ;'lti 'r1 9 to the latest seb San Jqa r-rin
<br /> Cqunty Flood Control. Map issued y tho and Water Conservation District, (Fl ate V,) the
<br /> water table at this location i,
<br /> feet below appraxiinatoly +15 fact, ar about IO
<br /> sampling, w ground level. However, during tank removal and soil
<br /> depth of about 1Q fett, it was reported that no water
<br />"+ tt•,.5"•- was encountered in the holo, and no dampness of soil was noteq. In
<br /> order to clarify this apparent inconsistency, the writer visited the
<br /> "l ?„
<br /> offices of the San Joa ui.a Flood Control District_ A dis
<br /> with Mr_ Hi rata revealed that the roasurements are of
<br />�;:�•''{.. ;.• cussion
<br /> levels, and not the top Of potential aquifer static fluid
<br /> not rr:veal specific well data, he inr_licated that thehwater wr-Zlsouqh he ui�
<br /> the area were o en t
<br /> P o zone, below .a
<br /> ry v literature indicates t I00 feet. A review of the
<br /> ?I: hat there are many uryconnected, discontinuous
<br /> Present i
<br /> ' aquifers in tYtis aria, The Fact that n❑ moisture or water was
<br /> n the excavation supports these data.
<br /> PRIOR TANK USE_
<br /> I am
<br /> The UST wa, used for personal use, and had contained leaded
<br /> gasoline_ There are no records available to indicate when the tank
<br /> was installed, or the amount of fuel usage_
<br />* REVIEW OF WORK DONE SINCE BEGINNING OF
<br /> PROJECT:
<br /> The following information was orovidetl to the writer b
<br /> and cthers, and is assumed to be accurate_ However, Thorpe Oil
<br /> writer slid not witness any of the work done on this 'ince the
<br /> canto)' guarantee that other informatign, not known to e writer,
<br /> project, he
<br /> may alfert the information and conclusions presented Ftere_he writer,
<br /> /TankO+i March Tl, 1989, Jim Thorpe Oil. Inc. filed a ferm..enent Closure
<br /> remove
<br /> Removal Plan with the San Joaquin Local Health District to
<br /> remove an underground 2,000 gallon regular gasoline storage tank
<br /> a '`ram a privatt, re,idvnco located at 23675 So.April 2
<br /> C:_ a
<br /> The Flan was approved on A , Manteca,
<br /> f-- details_) p 4, 1994} (refer Airport Wayto Exhibit C
<br /> On May en ,Tim Thorpe Oil Inc_ removed a 2,040 gallon, doable
<br /> been rtment gasoline storage tank from the property. The tank had
<br /> It been Coated prior to installation, and was in oxr_ellent condition,
<br /> nn.
<br /> We-ePPppro�imat.Z ly had been built as a marine anchoring buoy: the walls 1
<br /> �e r 1/w thick. Richard Thorpe, who was on the site,
<br /> - . d that there was only a vary slight odor detectable, and no
<br /> vI `= discoloration of the soil. Samples were taken at
<br /> `"�� each end -
<br />
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