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If a well does not yield a measurable amount of water due to seasonal groundwater fluctuations <br /> (drought, low flow, etc.), sampling of that well will be postponed until a measurable amount of water <br /> is observed. <br /> Any material changes to the groundwater sampling schedule or integrity of the monitoring wells will <br /> be reported to the DBMS. <br /> V. Sampling Procedures <br /> All samples will be collected by individuals experienced with water quality sampling and sent to a laboratory <br /> accredited by the National Environmental Laboratory Accreditation Program (NELAP). Sampling personnel <br /> will ensure the following procedures are followed at each sample location. <br /> A. Container Prep <br /> New, unused sample containers required by the lab for the specified analysis will be obtained the week <br /> before sampling is scheduled to ensure preservation volumes within the containers meet laboratory <br /> specifications. <br /> Sample containers will consist of the following: <br /> • (6)40 ml clear glass vials preserved with HCL <br /> • (2) 125 ml amber glass jars(no preservative) <br /> • (1) 500 ml poly jar(no preservative) <br /> B. Equipment Prep <br /> To reduce the risk of cross contamination, sampling personnel will ensure new, unused nitrile gloves <br /> are used during each sampling event, which includes changing gloves between each sample location. <br /> Utilizing nitrile gloves will also ensure that acid preservation within the sample bottles do not come <br /> in contact with the sampler's hand/skin. <br /> All sampling equipment (bailer, submersible pump, water level indicator, peristaltic pump, etc.) will <br /> be properly decontaminated between sample locations. Single use sampling equipment, such as poly <br /> submersible bailer and rope will be discarded after the sample usage for that well. <br /> • Sample Coolers — All coolers will contain the necessary volume of ice to preserve sample <br /> containers to 4° F and each cooler will contain a temperature and trip blank to accompany the <br /> samples to the lab. <br /> • Water Level indicator - A 200ft water level indicator will be utilized to obtain water level <br /> measurements before each sampling event. <br /> • Submersible pump—A GeoSub SS submersible pump with a flow controller and polyethylene <br /> tubing will be utilized to purge the monitoring well the necessary casing volume and obtain <br /> the necessary sample. <br /> • Water Quality Meter - All water quality readings will be collected utilizing a YSI 556 MPS <br /> water quality meter. <br /> Equipment will be calibrated prior to use to ensure accuracy of readings collected. Field parameters <br /> will be recorded on a groundwater field data sheet and retained for trend analysis. if conditions <br /> 4 <br />