Laserfiche WebLink
M � � � t1111111111111■ Ili r� <br /> TO i <br /> Groundwater Monitoring Data and Analytical Results <br /> rormer Chevron Service Station 49-0557 <br /> 139 South Center Street <br /> Stockton,California <br /> EXPLANATIONS: <br /> (imundwvater monitoring data and laboratory analytical results prior to May 17,2000,%vele compiled from reports prepared by Blaine Tech Services.Inc. <br /> 5PH'f=Separate-Phase Hydrocarbon Thickness (ppb)=farts per billion <br /> TOC:=Top of Casing <br /> (ft.)=Feet TPH-G=Total Petroleum Hydrocarbons as Gwlinc NO=Not Betected- <br /> -=Not.McasuredfNot Analy7.ed <br /> GWE=Groundwater Elevation B=Bcnzene <br /> (mst)=Mean sea level <br /> T=TolueneQA=Quality Assurance/Trip Blank <br /> S.I.=Screen Interval E=Rhytbenzene <br /> (ft.bgs)=Deet Below Ground Surface X=Xylenes <br /> CITW=Depth to WaterM'I'BI —Methyl tertiary hutyl ether <br /> * TOC elevation for MW-13 was surveyed in June.2002,using the previous benchmark. TOC elevations are based on City of Stockton Benchmark No.28. <br /> Survey was performed by Morrow Surveying on 101pt101. <br /> ** GWIs%vas corrected for the presence of SPH; correction factor:[(TO(,-DTW)+(SPITT x 0.80)]. <br /> ` Fecal coliforms measured in organisms per 100 milliliters(m]). <br /> Chromatogram pattern indicates an unidentified hydrocarbon. <br /> ' Oxygenates by EPA 8260 and Methanol by EPA 8015 were not detected: see lab report for detection limits. <br /> ()xygenates by EPA 8260 wwcre not detected: see lab report for detection limits. <br /> Laboratory report indicates unidentified hydrocarbons C6-C12. <br /> n laboratory report indicates weathered gasoline C6-C12. <br /> I.aborat.ory report indicates gasoline C6-C12+unidentified hydrocarbons<C6. <br /> 8 Laboratory report indicates gasoline C6-C 12. <br /> ' Laboratory report indicates constituents were analyzed by IPA Method 8260. <br /> I <br /> 10 Well development perlbrmed. <br /> " <br /> MTBE by El'A Method 8260. <br /> ' Data provided by Secor International.Inc. Samples were collected prior to initiation ofnzonc sparging(baseline samples). Wells%vert not purged <br /> prior to collection of samples. <br /> BT>✓X and MTBE by FPA Method 8260. <br /> rd l.,ahoraton-report indicates the concentration reported exceeded the calihrntinn range of the instrument and is therefore estimated. <br /> 15 Data provided by Secor international,Inc. Wells were not purged prior to collection of samples. <br /> 16 Change to data requested and provided by Secor international,Inc. <br /> 17 Analytical result confirmed. <br /> TOC has been damaged;unable to determine an accurate GrWI;. <br /> 1 <br /> As of 03/02/06 <br /> 9-0557.xrs/9386843 24 <br />