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ROY F. WESTON INC. <br /> STOCKTON ANALYTICAL LABORATORY <br /> L ANALYTICAL CASE NARRATIVE <br /> L ' <br /> Client: HYPONEX-LINDEN <br /> RFW#: 94045897 <br /> Test: Aromatic Volatile Organics <br /> 1. This narrative covers the analysis of seventeen (17) soil samples in accordance with <br /> protocols based on SW-846, method 8020. Samples: SBI-8', SB1-28', SB2-28',SB3- <br /> 25',SB3-28', SB5-30' are placed on hold per client request. <br /> 2. All required holding times for this analysis were met. <br /> 3. Calibration criteria is required to be met on at least one column for each target <br /> compound, and on both columns for any compound reported positive. All initial and <br /> continuing standard calibrations associated with this data set were within acceptance <br /> criteria. <br /> 4. The method blanks associated with this data set did not contain any target <br /> compounds at or above the reporting limits. <br /> 5. Surrogate recoveries were within acceptance criteria. <br /> 6. Blank spike recoveries were within acceptance criteria. <br /> 7. Matrix spike recoveries were within acceptance criteria. The RPD's for the spikes <br /> were within acceptance criteria. <br /> 8. Confirmation by second column analysis was not required because no target <br /> compounds were detected in the samples. <br /> Walter McCurdy/Unit Idader Date <br />