Transcription of QUALITY ASSURANCE/QUALITY CONTROL PROCEDURES
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GUIDANCEQUALITY ASSURANCE/QUALITY CONTROL ASSURANCE/QUALITY CONTROL ProceduresGUIDANCE SUMMARY-AT-A-GLANCE# QUALITY assurance (QA) is a process designed to ensure that all data collected areadequate for the purpose for which they are collected, that is, the data are complete,reliable, and representative. QUALITY CONTROL (QC) is the routine application ofprocedures for controlling the accuracy and precision of data measurements. PracticingQA/QC ensures that all samples collected are of adequate QUALITY to ensure an efficientand effective cleanup and, when necessary, to withstand legal scrutiny in a court case.#This section provides QA/QC protocols for sample collection and handling during spillresponse activities.
When selecting a grout and sealant material, consider the compatibility between the material and the soil and ground water. Calcium bentonite can be used in metal-rich calcic soils. However, sodium bentonite is generally used because of its ability to swell with water and thus seal the annulus, but it may shrink and crack from
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