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r 3d. Purging ' . The volume of standing water in each monitoring well was calculated using the diameter of the well, the measured depth-to-water and the depth-to-bottom The volume was recorded on the Well Sampling Data Sheet for each well ' • The wells were purged using an ES-60 purger pump attached to 40-feet of plastic tubing • Conductivity, pH, temperature, and ORP were monitored using the Ultrameter at each well casing interval throughout the purging process Visual observations of color/odor/turbidity were also monitored • The time, readings, and visual comments were recorded on the Well Sampling Data Sheet • Each well was purged of at least three well volumes and until the indicator parameters stabilized ' • Purge and decontamination water was transferred to a 55-gallon drum labeled and stored on site ' 3e. Groundwater Sample Collection ' Groundwater samples were collected by lowering previously unused, disposable, polyethylene, bottom-filling bailers into the well • When completely full, the bailer was carefully retracted from the well casing • The water was transferred from the bailer to the appropriate certified clean sampling containers Each VOA was immediately capped The vial was checked for air bubbles by inverting and gently tapping If any bubbles were visible, a new vial was filled and confirmed to be free of any air bubbles All samples were labeled with the following information ' Sample ID Date and Time Sample Collected Location Sampler's Initials Project Number ' Sample information was documented on a Chain-of-Custody form All samples were placed in an ice chest chilled with ice • Upon completion of the sampling activities, each well was closed and secured by replacing the well cap and lock 4. Equipment Used: ' Disposable gloves Potable water Alconox soap ' Containers to hold nnsate water • Scrub brushes Tools to open wells Keys to wells • Water Level Data Form 1 Pencil ' Well Sampling Data Sheets Water level meter 2of3