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• Dual Phase Extraction System-Groundwater Analytical Data • <br /> Parcel 2A-L&M OU <br /> 666 West Weber Avenue,Stockton,CA <br /> HEM IEthyl- Total <br /> TRPH w/SGT TPHg TPHd TPHo Benzene Tolw_ns-''_barizane Xylenes,. MtBE ETRE T <br /> Date Sam led Sam e1D Notes H orIL m i. 2 IL 2 DOPE a- <br /> 4/2812014 GW-1NF 35.18 110 1,300 310 1.3 10.50 10.50 <050 10,50 10.50 10.50 <050 <5 <br /> 41282014 MID-1 18 150 740 1100 <0.50 10SO 10.50 <0.50 <0.50 10.50 10.50 <0.50 <5 <br /> 4/282014 MID-2 c50 70 1100 <0.50 1450 10.50 <0.50 < 40 10.50 <0.50 10.50 <5 <br /> 4282014 MIDa 150 150 1100 10.50 10.50 10.50 <0.50 <0.50 10.50 10.50 <0.50 14 <br /> 4282014 MID-0 <50 150 1100 10,50 10.50 10.50 <0.50 10.50 <0.50 <0.50 <0.50 <5 <br /> 4282014 GW-EFF 11.0 150 <50 <100 10.10 <0.10 10.10 <0.10 15.00 10,50 1450 <O.50 <12 <br /> 7/162014 GW-INF 35,18 160 440 250 <0.50 <OSO 10,50 <O.50 10.50 10.50 10.50 <0.50 5.9 <br /> 7/162014 MID-1 18 97 A 1100 10,50 1450 10.50 IC50 10.50 10.50 <0.50 50.50 <5 <br /> 7/162014 MID-2 <50 <50 1100 10.50 1450 10.50 10.50 10.50 10.50 10.50 10.50 <5 <br /> 7/162014 MID-3 150 <50 1100 10.50 10.50 50.50 10.50 <OSO 10.50 10.50 10.50 19 <br /> 7/162014 MIDI 150 150 1100 10.50 10.50 50.50 1OSO <450 <0.50 <0.50 10.50 <5 <br /> 7/162014 GW-EFF 11.0 <50 150 <100 <0.10 10.10 50.10 <0.10 <5.0 <0.50 10.50 <0.50 <12 <br /> 10242014 GW4NF 35 180 710 290 13 1050 10.50 10.50 10.50 <O50 10.50 10.50 9.6 <br /> 10242014 MID-1 78 230 <100 10.50 <0.50 10.50 <0.So 10.50 <0.50 10.50 <0.50 6.4 <br /> 10242014 MID-2 <50 68 <100 10.50 <0.50 10.50 10.50 10.50 <0.50 10.50 <0.50 <50 <br /> 10124/2014 MID-3 150 <50 1100 10.50 10.50 10.50 <0.50 10.50 <0.50 50.50 10.50 id <br /> 10/242014 M10-0 <50 <50 <100 10.50 10.50 10.50 10.50 10.50 <0.So < SO 10.50 15.0 <br /> 10124/2014 GW-EFF <1.0 <50 150 <100 10.50 10.50 10.50 <0.50 <5.0 < So 10SO <OSO 172 <br /> 2152015 - -.. _ 66 1,11i <br /> 2/5/2015 MID-1 150 640 470 10.50 10.50 10.50 <O.W 10.50 10.50 10.50 1050 15.0 <br /> 215/2015 1 150 <50 <100 10.50 10.50 10.50 <0.50 10.50 10.50 10.50 10.50 <5.0 <br /> 2/512015 MID-3 150 c5O <10 10.50 10.50 10.50 10.50 <0.50 <0.50 10.50 10.50 12 <br /> 2/512015 MID-0 150 150 1100 10.50 10.50 <O.50 10.50 <0.50 <0SO 10.50 10.50 <5.0 <br /> 2/52015 GW-EFF 150 <50 1100 10.50 10.50 <0.50 10.50 10.50 <0SO <OS0 10SO 12.0 <br /> POTW Discharge umita: 6.0-10.0 100 100 - -• -- 500 Benzene/4,670 Total BTEX <5.0 112 <br /> Definitions: <br /> DIPE=Diisopropyl ether -=Not analyzed or not applicable <br /> ETBE=Ethyl tertiary butyl ether <=Value is less than laboratory reporting limit <br /> lbs=Pounds PH=Concentration of hydrogen ions <br /> ATC=Authority To Construct TAME=Ter0ary-amyl methyl ether <br /> BTEX=Benzene,Toluene,eNyl-Benzene,and Total Xylenes TBA=Tertiarydutyl alcohol <br /> PAH=Polynuclear Aromatic Hydrocarbons TPHd=Total petroleum hydrocarbons as diesel(diesel range organics) <br /> GAC=Granular Activated Carbon TPHg=Total petroleum hydrocarbons as gasoline(gasoline range organics) <br /> pglL=Micrograms Per liter TPHo=Total petroeum hydrocarbons as motor oil(motor oil range organics) <br /> mg1L=Milligrams per liter TRPH=Total recoverable petroleum hydrocarbons <br /> MBE=Methyl tertdutyl ether HEM w/SGT=Hexane extractable material with silica gel treatment <br /> POTW=Publically Owned Treatment Works <br /> o es� <br /> 1=System permitted under ATC No.N-0878-1-1. Source lest for air board. Extracted groundwater being held in onsite holding tank, <br /> System shut down following source test. <br /> 2=Source test for air board. System shut down fallowing source test due to on-site excavation activities. <br /> 3=Wastewater not discharge to sanitary sewer,stored in onsite holding tank. <br /> 4=Repeat analysis for TPHg yielded inconsistent results,the highest value detected is reported as an estimate. <br /> 5= System shut down relieving completion of vapor PAH sample collection. <br /> 6=Hydrocarbons reported as TPHo do not exhibit a typical Motor Oil chromatographic pa0em. <br /> 7=No sampling due to system not operating.No discharge past 6/32005 until 7162005. <br /> 8=pH sample collected on 10202005 due to exceedance of holding time on pH sample collected on 101162005. <br /> 9=System offline from 120/06 to 5/30/07 for construction.System restarted on 521107amdl sampled on 5/31107. <br /> 10=pH sample tested using standard method SM-0500-HB out of 15 minute holding time. <br /> 11=Sample analyzed using a bottle that contained a headspace bubble greater Nan 114 inch in diameter. <br /> 12=Mabix/Spike Duplicate results for the analyte toluene were affected by the analyte concentrations already present in me un-spiked sample. <br /> 13=Repeated analysis yielded inconsistent results for the analyte emylbenzene. The concentrations appear to vary between bottles. The highest valid results <br /> are reported. <br /> 14=Matrix/Spike Duplicate results for the analyte benzene were a0ected by Ne analyte concentrations already present in the un-spiked sample. <br /> 15=Surrogate Recovery for method Mod.EPA W15 vas outside of control limits. This may indicate a bias in the analysis due to the sample's matrix or an interference <br /> V.\1857 ctiv MidewmeAI85750217 84ewMer_StocMony2aN5 mp d_4elivA wgs designs\tables%OSM Tables 201500VAParw12A OM Tables 1015.Asx Page 17 or 19 <br />