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2 <br />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 “J” 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.