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i <br /> u <br /> GROUNDWATER SAMPLING PROTOCOL <br /> i <br /> ' Sampling of groundwater is performed by RESNA Industries, Inc. sampling <br /> technicians. Monitoring well sampling procedures are summarized as follows: <br /> 1 1. Wells are sampled in approximate order of increasing contamination. <br /> ' 2. Proceed to first well with clean and decontaminated equipment. <br /> 3. Measurements depths to liquid surface(s) in the well, and total depth <br /> of monitoring well. Note presence of sediment. <br /> 4. Field check for presence of floating product; measure apparent <br /> thickness. <br /> 5. Calculate minimum purge volume (well volumes) then purge well. <br /> 6. Monitor groundwater for temperature, pH, and specific conductance <br /> during purging. Following stabilization of parameters and removal <br /> ' of minimum volume, allow well to recover adequately. <br /> 7. Collect samples using Environmental Protection Agency (EPA) <br /> approved sample collection devices, i.e., teflon or stainless steel <br /> bailers or pumps. <br /> 8. Transfer samples into laboratory-supplied EPA-approved containers. <br /> 9. Label samples and log onto chain-of-custody form. <br /> ' 10. Store samples in a chilled ice chest for shipment to a state-certified <br /> P P <br /> analytical laboratory. <br /> ' 11. Secure wellhead. <br /> ' 12. Decontaminate equipment prior to sampling next well. <br /> RESNA INDUSTRIES INC. <br /> Groundwater Sampling Protocol <br /> ' Latest Revision: March 18, 1992 <br />