The analysisDate on a HoldingTimeViolation is the lab-reported date on which the analytical instrument ran the sample. Piper uses the gap between collectionDate and analysisDate to compute holdingDays. If analysisDate seems unexpectedly far from collectionDate, it may indicate a lab backlog or a data entry error — reviewing the lab report directly can confirm which. When a violation is discovered, notify the lab promptly, as they may be able to reanalyze archived extracts within the holding period if the extract was prepared on time.
Technical section
Data model, API, and internals — visible to developers.