ARCHIVED REPORTS_XR0011975 - Laserfiche WebLink

Home Browse Search

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 2 ORP3 iron 4 Iron j plate count 6 TOC' as NO3 a as SO,' as SO,' (Ortho)as P a TDS i 1 Number Date injection well m m m m CFU/ml mWL Ma mWL m mWL mWL NOTES i COD was analyzed using EPA Method 410 4 gg/L=micrograms per liter QA/QC Review Z Dissolved oxygen(DO)was analyzed using EPA Method 360 I NA=Not analyzed A=Data accepted without qualification 3 Oxidation reduction potential(ORP)was analyzed using ASTM D[499-76 J—Data accepted with qualification Ferros iron was analyzed using Hach Method 8146 NS=Not sampled R=Data rejected 5 Total iron was analyzed using EPA Method 200 7 NP=Not Purged 6 Heterotrophic plate count was conducted using SM 9215 B <=Below detection limit for the analytical methods used r Total organic carbon was analyzed using EPA Method 415 1 6 Nitnte nitrate,sulfates and phosphates were analyzed using EPA Method 300 0 9 Sulfite was analyzed using EPA Method 377 I 1°Total alkalinity was analyzed using SM 23208 li Total solids were analyzed using EPA Method 160 1 []]The sample was analyzed beyond the EPA recommended holding nme [2]The incubation was performed at 35 degrees C for 49 hours with plate count agar [3]The sample was received beyond the EPA recommended holding time [4]This sample was analyzed beyond the EPA recommend hold time(9 hrs) The sample was kept on ice at 5 degrees C and analyzed within 24 hours of sample collection [5]Thrs sample was prepared outside the 8 hour recommended holding time for this analysis [6]Sample result maybe biased lugh 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 recovery was within control limits 18]Reported results may be biased low since the analyses for these analytes were performed beyond the US EPA recommended holding time [9]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 criteria ]l0]The reporting limit for this analyte has been raised to account for matrix interference [I 1]The concentration indicated for this analyte is an estimated value above the calibration range a£the instrument [12]Confirmatory analysis was past EPA recommended holding time [13]This sample was originally analyzed within the EPA recommended hold time Reanalysis for confirmation or dilution was performed past the recommended hold time The result from the initial analyses are reported in the Table [141 Reported results may be biased high since the analyses for these analytes were performed beyond the US EPA recommended holding time [l5]Reported result should be considered estimaled since the analyses were performed beyond the US EPA recommended bolding nme 1161 Reported result may be biased low as indicated by a low average percent matnx spike recovery reported in the associated MS/MSD analysis [l71 The reported result may be estimated since the analyses for these analytes were performed beyond the USEPA recommended holding urrie '191 The 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 difference reported between the primary and laboratory duplicate samples STRATUS Arco_5469_0&M_Data 6of6