Quality Assurance Program - Oregon Department Of Transportation Page 28

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Investigation Criteria
The intent of the investigation is to determine reasonable cause for the discrepancy and provide
supporting documentation. Materials failing to meet the conditions outlined for Verification,
Independent Assurance and prior Quality Control testing, potentially have an impact on the
quality of the material produced or incorporated into the project.
Several resources are available to assist with the troubleshooting process and data collection.
Appendix E, (Troubleshooting Guide) provides some guidance through the evaluation phase
based on material discipline and the associated tests. The guide is an evaluation tool and is not
necessarily a complete listing of all potential areas to be investigated and the assistance of the
Region QAC, QAE or other technical resources is encouraged.
The investigation and the resolution of the discrepancy shall be documented on form (734-4040)
and at a minimum will contain the following information:
Clearly explain the issue under investigation. Provide the bid item number, material
description, test procedure or process in question, associated Quality Assurance
testing reference’s and date or timelines of the testing issue.
Describe the steps taken to resolve the discrepancy and the associated information or
test results gathered to support the findings.
Provide a conclusion based on the findings.
Describe recommendations or actions to be taken.
Provide written notification to the QAC and Quality Control entity upon completion of
the investigation. Ensure a copy of the investigation is maintained in the project files.
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