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COLUMBIA ANALYTICAL SERVICES,INC Client Delta Environmental Consultants Service Request No X0401098 Protect Canteen Corp Date Received November 12,2004 ISample Matrix Water CASE NARRATIVE ' All analyses were performed consistent with the quality assurance program of Columbia Analytical Services, Inc (CAS) This report contains analytical results for samples designated for Tier H data deliverables When appropriate to the method, method blank results have been reported with each analytical test Surrogate recoveries have been reported for all applicable organic analyses Additional quality control analyses reported herein include Matrix/Duplicate Matrix Spike (MS/DMS), and Laboratory/Duplicate ILaboratory Control Sample(LCS/DLCS) Sample Receipt The samples were received for analysis at Columbia Analytical Services on November 12, 2004 No discrepancies were noted upon initial sample inspection Any exceptions would be noted on the cooler • receipt and preservation form included in this data package The samples were received in good condition and consistent with the accompanying chain of custody form The samples were stored at 4°C upon receipt at the laboratory Volatile Organic Compounds by EPA Method 8260B Samples MW3/11-11-04(X0401098-003) and MW3A/11-I 1-04(X0401098—004)required dilution due to high concentration of Methyl tert-Butyl Ether The concentration for m,p-Xylenes for MW3D/11-11-04(X0401098-005)is considered estimated The concentration reported is less than the method reporting linut but greater than or equal to the method detection limit Gasoline Ranke Organics by EPA Method 8015 GRO I The concentration for GRO for all samples except MW3/11-11-04(X0401098-003) is considered estimated The concentration reported is less than the method reporting limit but greater than or equal to the method detection limit The detection of GRO is based on a total area reading and takes into account any changes in the baseline I I � IApproved by Date 12-7 I