volumesPurged on a PurgeLog is the compliance metric for volume-based purge protocols. A value of 3.0 means three well volumes were removed. Regulatory programs that require minimum volume purging — rather than parameter stabilization — use volumesPurged as the primary pass/fail criterion. Compliance staff record this value to demonstrate that purge requirements were met, even when stabilized is based on parameter criteria rather than volume thresholds alone.
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Volumes Purged
`volumesPurged` on a PurgeLog is the ratio of water removed to the well's standing volume, expressing how thoroughly the well was purged.