Quality Assurance Program
Delta's Quality Assurance (QA) program is appropriately designed to the needs of Delta
management and clients to ensure that data of known and defensible quality is produced and that
the accuracy of the analytical results can be stated with a high level of confidence. Delta 's QA
program is formulated such that an audit review of its implementation will enable a reviewer to
determine whether or not the QA program is being managed such that it guarantees high quality
as well as meaningful and accurate data. The format adopted for Delta QA program is the one
recommended by QAMS-004/80, QAMS-005/80, ORD and QAA guidelines. The QA objectives
are to assure that representative data are generated, and are, Precise, Accurate, Reliable,
Meaningful and Admissible as Legal Evidence.
Delta Quality Control system includes the use of calibration blank and standards; method
blank, matrix spiked and matrix spiked duplicates, sample and sample duplicates and Laboratory
control samples. EPA reference sample is routinely used to check the performance of the
analytical system. Field blank and trip blank are optional and will be included upon client
request. The QA/QC data package includes a blank, spike level, Matrix spiked and Matrix spike
duplicate percent recovery, sample/sample duplicate and RPD (Relative percent differences),
percent recovery of Laboratory Control Sample and /or surrogates .The format of the reports are
tailored to satisfy the client's need.
All data generated are appropriately documented, will be reviewed by the chemist, QAO,
and Laboratory Director and are presented in standard units to allow comparison with other data.
All the information regarding a particular sample will be accessible through our LIMS
(Laboratory Information Management System).