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backyard. The well access sheet, well inspection sheet, well sampling data sheet, and laboratory report are attached. Approximately 40 gallons of water was discharged from the sample point prior to collecting the groundwater sample. Before collecting the sample, the temperature, pH, and the conductivity of the groundwater were measured and recorded on the well sampling data sheet that precedes the laboratory results. After these parameters were measured, a sample was collected for laboratory analysis to identify whether volatile organic compounds (VOCs) may be present in the groundwater. The groundwater sample was collected in laboratory -supplied sample containers, filled completely, immediately capped, labeled, and placed in an ice -filled cooler. A completed chain -of -custody form identifying the sample identification, date and time collected, and the analyses to be performed accompanied the sample to BC Laboratories, a state of California certified laboratory located in Bakersfield, California. The laboratory reports attached to this letter show three values for each chemical compound that was analyzed: the method detection limit (MDL), the practical quantitation limit (PQL), and the result of the analysis. The MDL is the lowest concentration the laboratory can measure and the PQL is the lowest concentration that can be accurately quantified. A laboratory result of ND means the VOC was not detected at a concentration equal or greater than the MDL. A laboratory result followed by the letter "J" is a "trace" concentration that falls between the MDL and PQL. This value is an estimate. A reported result greater than the PQL is not qualified with a "J" and is an accurate value. The laboratory reports also include the results of internal laboratory quality control tests that are performed to verify the laboratory instruments are operating within the tolerances required by the analytical method and that the sample(s) being tested are not affected by laboratory contamination. Review of the quality control test results for the samples collected from your well in June 2017 shows that the laboratory equipment was operating within its specified tolerances and that the sample was not affected by laboratory contamination. RESULTS As shown on the attached laboratory report no VOCs were detected in the groundwater sample collected on June 21, 2017. RECOMMENDATIONS Forward has been working cooperatively with the CVRWQCB on groundwater investigations in the area. In addition, the Landfill has been working with the Water Board to control and reduce any identified VOCs which include a variety of man-made chemicals commonly associated with certain kinds of household waste. Forward continues to proactively monitor and sample groundwater wells at a number of residential properties near the landfill. Based on the results, it is not recommended that your well be included in a semiannual monitoring program at this time. CLOSURE GLA and Forward thank you for participating in this sampling program. If you have any questions 41 regarding this information, please call Mr. Joseph Lipka at (209) 235-9622 at your convenience. M:\SO17.1030\3440 Sunny.docx 2