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December 1 n-2002
<br /> ,lob Numbcr: LG02413
<br /> PascS
<br /> tithe was.close to"natural".conditions. Based on the work:by Bryan, it is estimated that under
<br /> "aut•,u;il" Conditions, &Round water cxsnc:cntratuon containing,mtritc Is no more than above 11.5
<br /> T NO3 (3 mg,-'L-N). Aquifers having 24.75 me.,-IL NO, (5-5 mg1L-N) or more are those its which
<br /> nitrate concentrations may be increasing.'
<br /> D13CP ww; not deter.ted in the waier sample- DBCP is.a trt7 wacidc and tial! Earn=:gaol
<br /> di>r vegetables, and grapes. It is thea fight to cause health probserras consisting of kidney damage,
<br /> liber da,nage,and cancer. The use cif DBCP u discontinued in 1979, The Environmental-
<br /> Protection Agc:nc:y(F.'PA) scat the maximum comaminatc limit (NICL)at 0.2 parts per bilhoa
<br /> (ppb) hecausc ihr EPA believes chat given Frresarrt terlitlol,7tty Arid re4kiun:es this is tlsc lc�writ
<br /> level to which water twstems can reasonably be-required to remove this contasninate she old it
<br /> o = in drinking --oaten`
<br /> ` TI, c gr(iund-water depth and !lore direction for the site w'as estima.ed by using the'San
<br /> JoactuinCounty Rok-Al Control and Water Cotiservation District ground-water depth and
<br /> clevsticm maps. The Fall 1998 and Spring 1999 are the most recent ground watcurnaps available
<br /> 1_ for the county- The depth to ground water hflov the;ite for this period is. about 23 feet. The
<br /> flow direction is northw•r_.t to north ranking ai oat 5 ra 53 reel pt�rmilc t sr the gradient.- Sr-,--
<br /> Plates
<br /> caPlates 2 and 3 for Il1r- round Waierdepth and Plates 4 trod 5 !brtlie i7ound-wale:graident-
<br /> N1,11 GEOLOGY,SG1.i..S, AI 1) PFRCOLAT[ON TEST
<br /> The 4urface.geology at the site is shown on Atwatcr's'map and is Composed of
<br /> Plesstoceric Modesto Formation consisting of loose flusial sands and silts(Plate 6).` According
<br /> to rite San Joaquin Soil Survey surface soils located cin the parcel arc cc�mlxrsccl of three(3)
<br /> different soil typm(Plait W, The soiN are the Hotwut sandy loam ('No. 17.5), Tinnin laamy
<br /> E_
<br /> !full,L-C,, 198.4,(i;;,-;Jwmistry,S Crnout)d Wattr us ti,e Sarranierua!,'alley,i s�ti(urnlas t1,5.Gct,6r SIQUI
<br /> Surrey Prmfessionat Pa1w 14-01-B
<br /> 4 f;1'A, 1499, brit,!ing ora!!hraW Nwkmsl f rtm \4
<br /> ar} VnnkinL acr ltcsrulaticm+,,romm mccl
<br /> r In
<br /> f_ theetrn,: DIBR0M0C}1L1(jR )PRPUANL Ictterne;_htx�:;i�cw .eP3gC�'•rt�t;t�DW'i6x�'c-sc,�clr�i6auwoc.hwn]
<br /> Itaw3;er.DT- 14)92,Geolosi Maps ofuhc Sacaamunlo-San Joaquin Dcltn,Califartis:U.S.C3C0)0 tic. .
<br /> $unie-v Ni fist-01AyIa*N TWId Survcy Map\41=-1401, '_1 Shs,:*.s.-tial, 1:24.000.
<br /> d • I Surti�ey OfSan JS Califcmua.
<br /> USDA 5a C:c.�aservthi,n �p��Gt'�'iVe, S;�t r�lilelilt C:cr.►a7[}',
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