Laserfiche WebLink
No procedure was followed to determine whether <br />purge -water was contaminated before disposal. <br />Consequently, the sampler did not know whether <br />the purge -water was contaminated. Purge water <br />of both unknown quality and known <br />contamination from MW -5B was discarded on the <br />ground near each well observed by DISC staff. <br />This deviates from the procedure stipulated in <br />the SAP (Sample Collection -Well Evacuation) . <br />Page two of the SAP specifies that water known <br />to be contaminated will be containerized for <br />proper disposal. Water from well MW -5B was <br />known to have been contaminated but was <br />nevertheless discarded by being discarded on <br />the ground by the sampling technician <br />ii. Draw -down after Purging <br />Prior to collecting samples `from monitoring <br />wells, water levels were not measured to <br />determine how much draw -down occurred after <br />purging. <br />This deviates from the procedure stipulated in <br />the SAP (Sample Collection -Sample <br />Withdrawal). Page two of the SAP specifies <br />that immediately after purging, "...water <br />level measurements will be taken to determine <br />how much draw -down occurred." - <br />iii. Recharge time <br />Recharge of formation water into the well was <br />not timed following purging of the wells <br />observed by DTSC staff. <br />This deviates from the procedure stipulated ;- <br />the SAP (Sample Withdrawall. Page two of the <br />SAP stipulates that, "...the recharge of <br />formation water into the well will be <br />determined by timing the rise in the water <br />level over the given distance." <br />iv. Bailer rope <br />Bailed samples were obtained using factory <br />packaged Voss non -weighted clear plastic <br />bailers pulled by the sample technician with <br />an 1/8 inch braided cotton cord. <br />This deviates from the procedure stipulated in <br />12 <br />