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Diamond Pet Food&AltaGas Ripon Energy January 31,2016 <br /> Sampling and Analysis Plan Page 4 of 5 <br /> temperature, turbidity,pH, and electrical conductivity. <br /> To comply with the field parameter monitoring requirements, an Oakton 10 pH/EC/temperature <br /> water-quality meter or equivalent will be used to monitor pH, conductivity, and temperature, by <br /> immersing the probes' analysis device directly in water, and a LaMotte 2020 turbidimeter or <br /> equivalent will be used to monitor turbidity levels by filling a water cell and inserting the cell into <br /> the instrument. <br /> 5. SAMPLING PERSONNEL <br /> All sampling will be conducted under the direct supervision of a California Professional <br /> Geologist or Engineer under contract to the Owner. Sampling personnel will include geologists, <br /> engineers, or technicians with at least six months of training and experience in the use and <br /> calibration of monitoring instrumentation. Training will include instruction and practice of <br /> operation of monitoring equipment overseen by experienced personnel in accordance with the <br /> manufacturer's manuals and other guidance documents. <br /> 6. PROCEDURES <br /> The following section discusses the sampling procedures used for sampling of groundwater. Field <br /> Data Sheets and Chain-of-Custody Forms used during sampling are provided in the Appendix. <br /> 6.1 GROUNDWATER SAMPLING PROCEDURES <br /> To sample groundwater, the following procedures are followed: <br /> The static elevation of water standing in the well is taken using the electronic water level <br /> indicator. Water level measurements are collected from the measuring point(the top of casing). <br /> The depth of water is then recorded on the Field Data Sheets. <br /> The well is purged as described above until field parameters stabilize or until three water volumes <br /> are removed. Shallow wells are purged at approximately two gallons per minute (gpm) and <br /> deeper wells are purged at eight to nine gpm. <br /> During the purging process, field parameters are analyzed for temperature, pH, specific <br /> conductivity, and turbidity. All field parameter measurements are recorded on Field Data Sheets, <br /> including the time of the measurements and approximate volume purged at the time of <br /> measurements (Appendix). <br /> Once field parameters stabilize within 10% of the previous reading or three well volumes are <br /> removed, samples are collected from the pump outlet, labeled, and placed in an ice chest. <br /> Samples are delivered to a licensed California-certified environmental testing laboratory <br /> (currently BC Laboratory of Bakersfield, California) and are accompanied by Chain of Custody <br /> documentation(Appendix). <br /> The electronic well sounder and all water testing equipment will be decontaminated between <br /> testing locations using an Alconox soap wash, a tap water rinse, and a deionized water rinse. The <br /> pumps, drop pipe, and sampling elbows are dedicated to each monitoring point, and do not <br /> require decontamination. <br /> 010107.08 Task 4 Lawrence&Associates <br /> W.•I CLIENTYDiamond Pet Foods1010107.01-Groundwater Monitoring)Groundwater Monitoring1201614QAnnual 2 01 612 01 6 Sampling and <br /> Analysis Plan.docx <br />