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a <br /> 1 <br /> 'v <br /> the well is allowed to recharge. (Normal field measurements will be periodically <br /> recorded during the purging process.) In situations where recovery to 80% of static <br /> water level is estimated, or observed to exceed a two hour duration, a sample will be <br /> collected when sufficient volume is available for a sample for each parameter. At no <br /> time will the well be purged dry so that the recharge rate causes the formation water to <br /> cascade into the well. <br /> j — In wells where free-phase hydrocarbons are detected, the free-phase portion will be <br /> # _i bailed from the well and the volume removed recorded. A groundwater savnple will by <br /> r collected if bailing reduces the amount of free-phase hydrocarbons to the point where <br /> they are not present in.the well., Well sampling will be conducted using one of the <br /> # aforementioned methods depending on the formation yield. However, if free-phase <br /> hydrocarbons persist throughout bailing, then a groundwater samples will not be <br /> collected. <br /> 77 Groundwater sample containers are labeled with a unique sample number, location, <br /> _ product name and number, and date of collection. All samples are logged into a chain- <br /> of-custody!corm and placed in a chilled ice chest for shipment to a laboratory certified <br /> r by the State of California Department of Health Services. <br /> 1. �. <br /> i_.i <br /> J . <br /> f <br /> EXCELTECH,INC. <br /> Groundwater Sampling Protocol <br /> Latest Revision: March 28, 1990 <br /> y <br />