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parameters were measured, a sample was collected for laboratory analysis to test whether volatile <br /> organic compounds (VOCs) may be present in the groundwater. The groundwater sample was <br /> collected in laboratory-supplied sample containers that were filled completely, immediately capped, <br /> labeled, and placed in an ice-filled cooler.A completed chain-of-custody form identifying the sample <br /> name, date and time collected, and the analyses to be performed, accompanied the sample to Pace <br /> Analytical Environmental Services, a state of California certified laboratory located in Bakersfield, <br /> California.The analyses performed by Pace Analytical Environmental Services included VOCs by EPA <br /> Method 8260B. <br /> The laboratory report attached to this letter shows three values for each chemical compound that <br /> was analyzed: the method detection limit(MDL),the practical quantitation limit(PQL), and the result <br /> of the analysis. The MDL is the lowest concentration the laboratory can measure and the PQL is the <br /> lowest concentration that can be accurately quantified. A laboratory result of ND means the VOC <br /> was not detected at a concentration equal to or greater than the MDL.A laboratory result followed <br /> by the letter'"is a "trace"concentration that falls between the MDL and PQL.This value is an <br /> estimate. A reported result greater than the PQL is an accurate (quantifiable)value. <br /> The laboratory reports also include the results of internal laboratory quality control tests that are <br /> performed to verify the laboratory instruments are operating within the tolerances required by the <br /> analytical method and that the sample(s) being tested are not affected by laboratory contamination. <br /> Review of the quality control test results for the samples collected from your well in September 2023 <br /> shows that the laboratory equipment was operating within its specified tolerances and that the <br /> samples were not affected by laboratory contamination. <br /> RESULTS <br /> As shown on the attached laboratory report no VOCs were detected in the groundwater sample <br /> collected on September 18, 2023. <br /> RECOMMENDATIONS <br /> Forward has been working cooperatively with the CVRWQCB on groundwater investigations in the <br /> area. In addition,the Landfill has been working with the CVRWQCB to control and reduce any <br /> identified VOCs which include a variety of man-made chemicals commonly associated with certain <br /> kinds of household waste. Forward continues to proactively monitor and sample groundwater wells <br /> at a number of residential properties near the Landfill. <br /> 2 <br />