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TABLE 5 Analytical Parameter Summary ARCO Service Station No 5469 130 South Wilson Way,Stockton,California Distance to Ferrous Total Heterotrophic Nitrate Sulfate Sulfite Phosphate Well nearest COD I DO' ORP' iron 4 iron 5 plate count 6 TOC 7 as NO3 a as SO4 s as S03 9 (Ortho)as P a TDS I I Number Date injection well mgAL m m m CFU/ml tngAL m m inngAL m m AIL NOTES i COD was analyzed using EPA Method 410 4 pglL=micrograms per liter QA1QC Review z Dissolved oxygen(DO)was analyzed using EPA Method 360 1 NA=Not analyzed A=Data accepted without qualification 3 Oxidation reduction potential(ORF)was analyzed using ASTM D1498 76 J=Data accepted with qualification °Ferros iron was analyzed using Hach Method 8146 NS=Not sampled R=Data rejected s =Not ed Total iron was analyzed using EFA Method 200 7 NP PmB e Heterotropluc plate count was conducted ruing SM 9215 B =Below detection Lunn for the analytical methods used t Total organic carbon was analyzed ruing EPA Method 415 1 r Nitrite nitrate sulfates and phosphates were analyzed using EPA Method 300 0 9 Sulfite was analyzed using EPA Method 377 1 1°Total alkalinity was analyzed using SM 23208 I i Total solids were analyzed using EPA Method 160 1 [11 The sample was analyzed beyond the EPA recommended holding time 121 The incubation was performed at 35 degrees C for 48 hours with plate count agar 13]The sample was received beyond the EPA recommended holding time [4]This sample was analyzed beyond the EPA recommend hold time(8 hrs) The sample was kept on lee at 5 degrees C and analyzed within 24 hours of sample collection [51 This sample was prepared outside the 8 hour recommended holding time for this analysis [61 Sample result may be biased high Matnc spike and matrix spike duplicate recoveries exceed upper control limits [7]Sample result maybe biased low Matrix spike duplicate recovery exceeds lower control limit Matrix spike reco%ery was within control limits 1e1 Reported results may be biased low since the analyses for these analytes were performed beyond the US EPA recommended holding time [91 The method blank contains this analyte at a concentration above the reporting limit however the concentration is less than 5%of the sample result,which is negligible according to method entena. [10]The reporting limit for this analyte has been raised to account for mamx interference [1 l]The concentration indicated for this analyte is an estimated value above the calibration range of the instrument 1121 Confirmatory analysis was past EPA recommended holding time [131 Thus sample was originally analyzed within the EPA recommended hold time Re-analysis for confirmation or dilution was performed past the recommended hold time The result from the initial analyses are reported in the Table [14]Reported results may be biased high since the analyses for these analytes were perfomred beyond the US EPA recommended holding time [151 Reported result should be considered estimated since the analyses were performed beyond the US EPA recommended holding time [16]Reported result maybe biased low as indicated by a low average percent matrix spike recovery reported in the associated MSIMSD analysis 1171 The reponed result may be estimated since the analyses for these analytes were performed beyond the USEPA recommended holding time [19173ie reported result may be biased since the analyses for these analytes were performed beyond the US EPA recommended holding time [19]The reported result should be considered estimated due to a high relative percent differenre reported between the primary and laboratory duplicate samples 571�47I15 Ano-5469-0&M_Data 6of6