1992-04-01_REVISION - M1988112 - Laserfiche WebLink

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1 rl 1 control limits as defined in the above procedures, the field sampling personnel will take corrective action. The action taken shall be of a nature to return the sample back to within control limits. The corrective-action, decision-making process will progress in a reverse sequence of the procedures listed above, in a descending order until the sample is within control limits. Recollection of a sample will be the means of last resort to return a sample to within control limits. If there is a deviation from the sampling procedure and/or sample management program, but this will not sufficiently affect the integrity of the sample to warrant recollection, the sample will continue through tihe sample management sequence. The field sampling personnel will notify the Project Manager of this situation. In addition, any such deviations from procedure must be noted. 2.1.5 Filtration of Ground Water Samples, Preservation' and Preoaratidn: Ground water samples requiring dissolved analysis will be filtered on site. Filtering techniques are defined in Section 2.2.10. Samples will be filtered with as little delay after collection as is practical under field conditions. Samples requiring filtration will be acidified after filtering. Sample bottles that are filtered will be recorded on the Field Data Collection Sheet. If conditions allow for same day delivery to the laboratory, the samples may be filtered at the laboratory, providing filtration is performed promptly upon receipt by laboratory personnel.. Samples will not be acidified in the field but rather will be acidified ~ d -~ at the laboratory following filtration. Time and date of rG>~ "~/ filtration will be recorded by the laboratory. s~. ~~ ;.,,,,Y oL~r Sample preservation and pre-treatment will be performed using preservatives as defined in Table 5. -7- 1