Describe the role of QA/QC within the Colorado air monitoring program.

• A. It coordinates field maintenance visits.
• B. It oversees only equipment procurement.
• C. It ensures data quality but not reporting.
• D. It establishes procedures, ensures data integrity, maintains regulatory compliance, and provides documentation for regulatory reporting.

Answer: (D)

QA/QC in the Colorado air monitoring program is about making sure data are accurate, reliable, and defensible for regulatory decisions. It involves establishing procedures, ensuring data integrity, maintaining regulatory compliance, and providing documentation for regulatory reporting. This means setting up standardized processes for instrument calibration and performance checks, data validation, and audit trails; keeping thorough, traceable records; and ensuring the data submitted to regulators meet required quality standards. This approach ensures not only the quality of the measurements but also the completeness and verifiability needed for official reporting, audits, and compliance verification. Other options touch only parts of the picture—like field maintenance logistics or procurement—or focus on data quality without the necessary reporting and regulatory framework—so they don’t fully describe the QA/QC role.