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_W <br /> • - J H KIevl nq n. C 1 1;',41 <br /> 1 C. M "N uU" M.Nen C F. 1541• <br /> J. H. KLEINFELDER & ASSOCIATES M,:hnnlE M1i4hn ney l I ,;.,: <br /> ,,'....•s i° fh•herff M Werv. C 1 1)fi)9 <br /> CONSULTING SOILS & FOUNDATION ENGINEERS ENGINEERING LABORATORIES <br /> File No. S-2008-1 <br /> June 27, 1973 <br /> f <br /> Ervin Engineering Company <br /> 729 South Park View Street Q � <br /> Los Angeles , California 90057 <br /> Attention: Mr. Jose Gama <br /> Gentlemen: <br /> LOG OF TEST BORINGS AND <br /> DISCUSSION OF SOIL CONDITIONS <br /> PROPOSED RETENTION BASINS <br /> PROPOSED TRACT 1027 <br /> MORADA WEST SUBDIVISION <br /> HAMMER LANE AND HIGHWAY 99 <br /> STOCKTON, CALIFORNIA <br /> As discussed with Mr. Gama by telephone this date, we <br /> are transmitting the Logs of three of the Test horings <br /> drilled by our firm on June 25, 1973, at this site . These <br /> three test borings were drilled by our firm as a part of the <br /> supplementary soils studies. described in our confirming <br /> proposal to Mr. Lew Schmid of June 19, 1973. The primary <br /> concern at this time is design data for the two pumping <br /> facilities . <br /> Boring 5 was drilled at the approximate location of <br /> the proposed retention basin and pumping facility adjacent <br /> to Lots 113 and 114 of Unit 1 of this development . Test <br /> Borings 8 and 10 are the closest of the new borings to the <br /> proposed retention basin and pumping facility in the south- <br /> west portion of the property, just south of the East Bay <br /> Municipal Utility District easement . <br /> Logs of the test borings are presented on Plates , <br /> attached. The approximate location at which these borings <br /> were drilled is shown on the attached Plot Plan, Plate I. <br /> In Boring 5 , we encountered what appears to be a <br /> perched groundwater condition at an approximate depth of <br /> 14 feet below the presently existing ground surface. This <br /> water appears to be an accumulation of surface or irrigation <br /> water which has accumulated in the sandy soils below a depth <br /> of approximately 15 feet. From our observations during <br /> + .'q,'t, I ASI MV14fl f 3'1:11 I S11,f K ON t'AI If(niNIA 1'141;)9 l It I t n11ON1 (204) 41V6:, C <br /> .14, .:'1Y lit Al r'.SI,'NI Al! " 't f :I - .)i is u.fa.1 Oiml III IrRIM VO'f1 .'I ,1. :., <br /> �cjc�smxp2xmjxu�xmxmxmxmxmxnUtmxmxmxmxmxca��Egxmxc�xc�uca� mx <br />