Data Validation and Usability Data Review, Validation, and Verification Requirements Table 24. Criteria for accepting, rejecting, or flagging data If not met sample is accepted, Item Criteria Flag Comments flagged or rejected? Sample received in the lab Sample not within 6 hours of collection and analyzed within Rejected HT analyzed within 2 hours of hold time receipt appropriate hold time Proper COC documentation not Lost sample followed and sample is (Unable to analyze) LS misplaced Various circumstances (i.e., Unable to Collect weather, lost sampling (Unable to analyze) NS Sample container) cause sample to not be collected Temperature blank within Sample not held cooler indicates temperature within required above 6° C or proper storage Rejected T temperature range equipment failed to read within range (refrigerator/freezer) Temperature blank not placed within Unknown receipt temperature Flagged UT cooler during sample transport Incorrect sampling Incorrect sampling container container used for Flagged SC used for sample collection sample collection Improper Improper preservation (i.e., Flagged IP preservation acidification, filtering) Validation and Verification Methods All processes at EQL (sample receiving and handling, sample analysis, data reduction, data reporting, data review, etc.) are subject to examination to evaluate adherence to project specifications. This examination consists of several layers of technical and QA review. These reviews ensure that all data released by EQL were scrutinized by qualified independent reviewers and are scientifically sound, appropriate to the method, completely
Data Validation and Usability Data Review, Validation, and Verification Requirements Table 24. Criteria for accepting, rejecting, or flagging data Item Criteria If not met sample is accepted, flagged or rejected? Flag Comments Sample not analyzed within hold time Sample received in the lab within 6 hours of collection and analyzed within 2 hours of receipt appropriate hold time Rejected HT Lost sample Proper COC documentation not followed and sample is misplaced (Unable to analyze) LS Unable to Collect Sample Various circumstances (i.e., weather, lost sampling container) cause sample to not be collected (Unable to analyze) NS Sample not held within required temperature range Temperature blank within cooler indicates temperature above 6° C or proper storage equipment failed to read within range (refrigerator/freezer) Rejected T Temperature blank not placed within cooler during sample transport Unknown receipt temperature Flagged UT Incorrect sampling container used for sample collection Incorrect sampling container used for sample collection Flagged SC Improper preservation Improper preservation (i.e., acidification, filtering) Flagged IP Validation and Verification Methods All processes at EQL (sample receiving and handling, sample analysis, data reduction, data reporting, data review, etc.) are subject to examination to evaluate adherence to project specifications. This examination consists of several layers of technical and QA review. These reviews ensure that all data released by EQL were scrutinized by qualified independent reviewers and are scientifically sound, appropriate to the method, completely
Withers%20MST%20QAPP%2001072013.docx