Data quality assurance for watershed and land use studies

Abstract

Overview of the quality assurance program put in place for the PLUARG Task C Watershed studies. A number of actions were taken in an attempt to assure valid data in the PLUARG Pilot Watershed Studies. Among these actions were: reference samples were provided to participating laboratories, a replicate sample program was started, documentation of Sample Handling and Analytical Methods (on file in IJC Regional Office), meetings of Analysts and Data Handlers were held, and preparation and distribution of a Quality Control Handbook for Pilot Watershed Studies (QCH/PWS).