Wisconsin Administrative Code
Department of Natural Resources
NR 100-199 - Environmental Protection General
Chapter NR 149 - Laboratory Accreditation
Subchapter VII - Quality Systems
Section NR 149.38 - Corrective action

Universal Citation: WI Admin Code ยง NR 149.38

Current through August 26, 2024

(1) The laboratory shall take corrective action in response to any nonconformances including all the following:

(a) Departures from established procedures in the quality system are identified.

(b) Quality control samples fail, unless immediate reanalysis of the affected sample resolves the issue.

(2) The corrective action under sub. (1) shall identify the problem, determine the most probable cause of the problem, implement solutions to correct the problem, and include a mechanism to verify that the action has had the desired effect.

(3) The laboratory shall document corrective action taken to address the nonconformance under sub. (1) and any other changes resulting from corrective action investigations. Changes implemented to address failures of quality control samples shall be those that resolve or address the failure. Changes shall be implemented to minimize the number of affected results reported by a laboratory.

(4) The laboratory shall monitor the effectiveness of implemented corrective action changes and take additional corrective action when initial or subsequent corrective action fails to resolve the nonconformance.

Note: The analyst may not always be able to identify the cause of isolated noncon-formance incidents.

(5) Root cause analysis shall be performed when there is recurrence.

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