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Table 9 Dual Phase Extraction System-Groundwater Analytical Data Parcel 2A-L&M OU 666 West Weber Avenue,Stockton,CA HEM Ethyl- Total TRPH w/SGT TPHg TPHd TPHo Benzene Toluene benzene Xylenes MtBE ETBE TAME TBA Date Sam led Sam le ID Notes H m /L m /L /L /L /L /L /L /L /L /L DIPE /L /L /L /L 4/28/2014 GW-INF 35,18 110 1,300 210 1.3 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5 4/28/2014 MID-1 18 150 740 <100 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5 4/28/2014 MID-2 <50 70 <100 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5 4/28/2014 MID-3 <50 <50 <100 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 14 4/28/2014 MID-4 <50 <50 <100 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5 4/28/2014 GW-EFF <1.0 <50 <50 <100 <0.10 <0.10 <0.10 <0.10 <5.00 <0.50 <0.50 <0.50 <12 7/16/2014 GW-INF 160 440 250 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 5.9 7/16/2014 MID-1 97 77 <100 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5 7/16/2014 MID-2 <50 <50 <100 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5 7/1 612 0 1 4 MID-3 <50 <50 <100 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 19 7/1 612 0 1 4 MID-4 <50 <50 <100 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5 7/16/2014 GW-EFF <1.0 <50 <50 <100 <0.10 <0.10 <0.10 <0.10 <5.0 <0.50 <0.50 <0.50 <12 POTW Discharge Limits: 5.0-10.0 100 100 500 Benzene/4,570 Total BTEX <5.0 <12 Definitions: DIPE=Diisopropyl ether --=Not analyzed or not applicable ETBE=Ethyl tertiary-butyl ether < =Value is less than laboratory reporting limit lbs=Pounds pH =Concentration of hydrogen ions ATC=Authority To Construct TAME =Tertiary-amyl methyl ether BTEX=Benzene,Toluene,ethyl-Benzene,and Total Xylenes TBA=Tertiary-butyl alcohol PAH =Polynuclear Aromatic Hydrocarbons TPHd =Total petroleum hydrocarbons as diesel(diesel range organics) GAC=Granular Activated Carbon TPHg =Total petroleum hydrocarbons as gasoline(gasoline range organics) Ng/L=Micrograms per liter TPHo =Total petroeum hydrocarbons as motor oil(motor oil range organics) mg/L=Milligrams per liter TRPH =Total recoverable petroleum hydrocarbons MtBE=Methyl tert-butyl ether HEM w/SGT=Hexane extractable material with silica gel treatment POTW =Publically Owned Treatment Works Notes: 1 =System permitted under ATC No.N-4878-1-1. Source test for air board. Extracted groundwater being held in onsite holding tank. System shut down following source test. 2=Source test for air board. System shut down following source test due to on-site excavation activities. 3=Wastewater not discharge to sanitary sewer,stored in onsite holding tank. 4=Repeat analysis for TPHg yielded inconsistent results,the highest value detected is reported as an estimate. 5= System shut down following completion of vapor PAH sample collection. 6=Hydrocarbons reported as TPHo do not exhibit a typical Motor Oil chromatographic pattern. 7=No sampling due to system not operating.No discharge past 6/3/2005 until 7/6/2005. 8=pH sample collected on 10/20/2005 due to exceedance of holding time on pH sample collected on 10/18/2005. 9=System offline from 12/7/06 to 5/30/07 for construction.System restarted on 5/21/07and sampled on 5/31/07. 10=pH sample tested using standard method SM-4500-HB out of 15 minute holding time. 11 =Sample analyzed using a bottle that contained a headspace bubble greater than 1/4 inch in diameter. 12=Matrix/Spike Duplicate results for the analyte toluene were affected by the analyte concentrations already present in the un-spiked sample. 13=Repeated analysis yielded inconsistent results for the analyte ethylbenzene. The concentrations appear to vary between bottles. The highest valid results are reported. 14=Matrix/Spike Duplicate results for the analyte benzene were affected by the analyte concentrations already present in the un-spiked sample. 15=Surrogate Recovery for method Mod.EPA 8015 was outside of control limits. This may indicate a bias in the analysis due to the sample's matrix or an interference from compounds present in the sample. 16=Matrix Sike/Matrix Spike Duplicate Results for the analyte Tert-Butanol were affected by the analyte concentrations already present in the un-spiked sample. 18=Hydrocarbons reported as TPHg are primarily compounds not found in typical gasoline. 19=Hydrocarbons reported as TPHo are lower boiling than typical motor oil. V:\1857\active\tidewater\185750217_tidewater_stockton_p2a\05_report_deliv\drwgs_designs\tables\O&M Tables 2014\3Q14\Parcel 2A OM Tables 3Q14.xlsx Page 22 of 66