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1 <br /> four well casing volumes were purged, and the pH, specific conductance, and temperature <br /> had stabilized, or five well volumes had been evacuated If low yield momtonng wells <br />' evacuated to dryness after the removal of less than three casing volumes, such low yield <br /> wells were allowed to recover for a minimum of two hours If the well recovered to 80% <br />' of its original water level after two hours, a groundwater sample was collected <br /> Otherwise,the well was allowed to recover up to 24 hours prior to sampling If <br />' insufficient water recharged after 24 hours,the monitoring well was recorded as dry for <br /> the sampling event <br /> All field measurements were recorded in a waterproof field logbook Water sample field <br /> data sheets were prepared to record the field data The sampling coordinator reviewed <br />' these data sheets when the sampling event was completed <br /> The pH, specific conductance, and temperature meter were calibrated each day before <br /> beginning field activities The calibration was checked once each day of sampling to <br /> verify meter performance All field meter calibrations were recorded in the field logbook <br />' Groundwater generated from well-purging operations was contained for temporary <br /> storage in 55-gallon drums All drums were labeled and stored onsite in a location <br /> designated by the client or client representative The sampler recorded the following <br /> finformation on the drum label for each drum generated <br />' . Drum content(groundwater) <br /> • Source (well designation) <br />' . Date generated <br /> Client contact <br /> • Project number <br />' . Name of sampler <br /> The groundwater will be stored onsite for a maximum of 90 days Burlington will notify <br /> the client when the water is ready for removal <br /> A-3 <br /> E 1CT110211QTR98 roc <br />