The purpose of the water quality monitoring project, which is conducted by Bureau of Environmental Monitoring and Data Processing of EPA, is to collect surface water quality data needed for water quality assessments. In order to ensure the data quality collected by those environmental testing laboratories are reconciled to original purpose, this “Data quality assurance project plan” is conducted to verify, by examination and evaluation of objective evidence, that applicable elements of the quality system are appropriate and have been developed, documented, and effectively implemented in accordance and in conjunction with specified requirements requested by the monitoring project. The purpose of this QAPP is mainly to clearly delineate EPA QA policy, management structure, and procedures which will be used to implement the QA requirements necessary to document the reliability and validity of environmental data. An audit program including sampling, analytical performance, blind sample and data audit has conducted to evaluate the data quality of those environmental testing laboratories and to make sure that the quality of original objectives has been fulfilled. In order to provide opportunity for give-and-take, several seminars and symposiums about audit results, sampling and analytical techniques were held and opened to all participants of the monitoring project. The present project has fulfilled all of the assigned works in 11 months. In this report, the inadvisable and inevitable cause of shortcomings about QA implementation are discussed and some suggestions are also made.

Water quality monitoring project,Data quality assurance project plan,Blind audit