QA / QC

TRE is committed to the philosophy that quality operations result from quality planning, documentation and traceable work performed by skilled personnel. Staff training is based on an extensive and detailed set of Standard Operating Procedures (SOPs). The QA portion of the program is designed to generate scientifically-accurate and legally-definsible data by adherence to applicable, published guidelines and accepted scientific practices, while the goal of QC is to detect, correct and reduce errors both in data itself and in statistical analysis.

Data generated by the TRE Environmental Laboratory are reviewed for completeness and accuracy before submitting to the client. Laboratory conditions, instrumentation and culture data are rotinely collected and reviewed to identify trends that might impact organism response and test performance.

Accreditation and Proficiency Testing

TRE strives to perform its work in accordance with the standards of the National Environmental Laboratory Accreditation Conference (NELAC) Institute. TRE is accredited through the National Environmental Laboratory Accreditation Program (NELAP), administered through the State of Florida, as well as the state programs of Utah, Nevada and Texas.  TRE is also accredited for WET testing in other states with their own program including Oklahoma and Washington.

Proficiency tests conducted at TRE gauge the accuracy and precision of laboratory data through the assay of reference materials whose true value is unknown to the technician performing the analysis. TRE participates in national performance assessment programs including semiannual Water Pollution (WP) evaluations and annual Discharge Monitoring Report Quality Assurance (DMRQA) bioassay evaluations.  TRE receives blind chemistry samples and blind toxicity samples for analysis by laboratory staff. These data are then submitted for statstical comparison to results submitted by all participating toxicity testing laboratories. In addition, TRE routinely evaluates laboratory organisms with reference toxicants (“positive controls”) to ensure their acute and/or sublethal responses are within the acceptable historical range.