From Bench to Report: Managing Data Quality for Reliable Environmental ResultsEnsuring Reliable Data
Oral Presentation
Prepared by L. Sanchez, P. Parmar
Orange County Water District, 18700 Ward Street, Fountain Valley, CA, 92708, United States
Contact Information: [email protected]; 714-378-3344
ABSTRACT
Generation of reliable environmental data is achieved through disciplined data management, structured review processes, and informed supervisory oversight, not solely through analytical performance at the bench. As laboratories face increasing workloads, staffing variability and availability, and regulatory scrutiny, managing data quality from sample receipt through final reporting is essential to producing defensible results.
This presentation focuses on supervisory and management practices used in routine operations at the Orange County Water District laboratory to ensure data quality. Topics include applying TNI requirements and guidance through a detailed Quality Manual, staff training, SOPs, traceability, and clearly defined data quality expectations. The presentation also covers consistent data review workflows, quality control evaluation, and resolution of data anomalies prior to result release.
Technical review elements such as QC trending, calibration performance, documentation completeness, and decision-making beyond basic acceptance criteria will be discussed, with emphasis on how supervisors evaluate data holistically and make informed release decisions.
Operational examples will demonstrate how structured peer review followed by supervisory review improves consistency across analysts and instruments, reduces rework and corrective actions, and supports confident technical and management decisions.
This presentation is intended for laboratory staff at all levels, from analysts to supervisors, managers, and QA/QC professionals, seeking practical, real-world approaches to strengthening data review practices and ensuring reliable environmental results.
