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Table 2 <br /> GROUND WATER ELVATIONS AND SAMPLE ANALYTICAL RESULTS <br /> Ruiz Grocery Stone <br /> 4491 West Durham Ferry Road <br /> Tracy,California <br /> Sample COAeetion TOC DTW GWE SPH TPHg B T F X MTBE <br /> No. --- Date (feet) (feet) (feet) (feet) (OWL) (gg/L) (PWL) (p></L) (9A/L) (ittr/L) <br /> RW-1 1011.9!95 15.05 --- 0.00 18.000 2,000 1,500 370 1,500 1.400 <br /> 12119/95 --- 16.46 --- ___ .., ... <br /> 12320!95(3) --- --- -. 0.00. 220 l2 2.3 <0.5 23 410 <br /> 115196(1) -- 16-79 --- __ -- ... ... <br /> 7/2/96 - 15.30 --- .-- <br /> 10/18l96 .-- 15.31 --- --• - ... ... <br /> 8120/98 99.07 -- - <br /> Domtstic 914191 --- 0.00 <50 4.5 <0.5. 4.5 <o.5 _ <br /> Well 117193 --- -- - 0.00 <50 <05 <0.5 4.5 <0.S ... <br /> 417113 ._ ... _ 0-00- <50 <0.5 <0.5 <03 <0.5 --- <br /> 115/1996(t) - --- 0.00 <50 <0.5 4-5 <0.5 <0.5 <5.0 <br /> 7!2/96 --• --- -- 0-00 <50 <0.5 <0.5 <0-5 <03 d.0 <br /> 10/18196 --- --- -- 0.00 <50 1<03 <0-5 <0.5 Q.0 <5.0 <br /> 1/22/97 --- - -- 0:00 <50 <0.5 <0.5 <0.5 <2.0 <5.0 <br /> 4/22197 --- - 0.00 <50 4.5 <0.5 <0.5. <2.0 <5.0 <br /> 7124/97 - - -. 0.00 <50 <0.5 <0.5 <0.5 <2.0 <5.0 <br /> 11/14/97 - --- 0.00 <50 , 1.2, 1.0 0:7 4.0 <5.0 <br /> 1122/98 _- .- . •-- 0.00 <100 <05 <A.s <0S <1.5 <5.0 <br /> 5112198 --- 0.00 <50 <0.5 <0-5 4.5 <0.5 <5.0(5) <br /> 6120/98 .. 0-00 <50 N5 1-0.5 <0.5 <03 <5.0(5) <br /> 1114198 --- -- 0.00 .450 <65 <0.5 <0.5 <0.5 <5.0(5) <br /> 313194 __ ... 0.00 <50 -CO.$ <0.5- <0.5 1_5 <5.0 <br /> 5/13199 -- --- --- 0.00 <50 t05 <0.5 4.5 4.5 <5.0 <br /> _. ... 0-00 80 <0.5 <0.5 <0.5 <0.5 <5.0 <br /> HP-1 10/20!93 --. 0.00 <50. <0.3 <0.3 <0.3 <0.3 .-- <br /> HP-2 10/20/93 _- - .- 0.00. <50 <0.3 <0.3 0/1.3 <0.3 --- <br /> I{p-3 10/20/93 --- 0.00 <50 <03 <0.3_ <0.3 <0.3 - <br /> HP-4 !0/20193 -- ••• - 0.00 <50 <0.3 <0.3 <0.3 <0.3 •-- <br /> HP-5 10/20/93 --- - 0.00 <50 <0.3 <0.3 <0.3 <0.3 - <br /> NP-6 10/20/93 - 0.00 <50 <03 <0.3 <0.3 <0.3 -- <br /> Notes: Top of casing referenced to mean see level <br /> TOC Depth to witter <br /> DTW Ground water elevation(corrected for presence of SPH,if applicable) <br /> GWF Sepurutc•phasc hydrocarbons .. <br /> SPH Total petmltum hydrowbuns as gasoline by EPA Method 8015(CA LUF f'modified) <br /> TPFig Ren-ne,toluene,ethylbenzene and total xylenes by EPA Method BOZO(CA LUFf modified) <br /> BTEX Methyl tertiary butyl ether by EPA Mcthod 8020 through 1/22/98,EPA Method 8260 thereafter <br /> MTBE Not detected in concentrations exceeding the indicated method detection limit <br /> <50 Not tested/measured <br /> --- Micrograms per liter <br /> 1481 Samples unpreserved and 7 day holding period exceeded,sampler:analyzed 13 days after collection <br /> (1) MrBS by EPA Method 8260=1,300 pg/L. <br /> (2) Water sample collected from RW.I after approximately 19 hours of pumping at 5 gpm <br /> (3) In addition to MTBE,39 pVt of tett-llutanol was detected by Method 8260. <br /> (4) All other fuel oxygenates were not present in cunumtattions exceeding inethod detection limits the sample. <br /> (5) Additional fuel oxygenates(ETRE,TBA,DIPS,TAME)were not dztcctcd in concentrations. <br /> exceeding method detection limits by EPA Method 8240 or 8260. <br /> i <br /> I <br /> I <br /> Pagc 4 of 4 <br /> OT/8'd dno65 J31UMdU31D WdOV:EO 66, 80 d35 <br />