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rl <br /> .1 <br /> +1 sl <br /> Compliance & Closure, Inc <br /> Groundwater Sampling Protocol <br /> Latest Revision January 2004 <br /> Laboratory and field handling procedures of samples are monitored by including QC samples for analysis with <br /> every submitted sample lot from a project site QC samples may include any combination of the following <br /> o Trip Blanks: One Trip Blank will be collected and analyzed for purgeable organic compounds <br /> only, QC samples are collected in 40 milliliter(ml) sample vials filled in the analytical laboratory <br /> with organic-free water Trip blanks are sent to the project site, and travel with project site <br /> samples Trip blanks are not opened, and are returned from a project site with the project site <br /> samples for analysis <br /> o Duplicates- Duplicated samples are collected "second samples" from a selected well at the <br /> project site They are collected as either split samples or second-run samples collected from the <br /> same well The duplicate sample will be analyzed using EPA Test Method 8260 <br /> o Equipment Blank: Periodic QC samples collected from field equipment rinseate to verify <br /> decontamination procedures (if applicable) Equipment ansate blanks will be collected <br /> between sampling of wells <br /> The number and types of QC samples are determined and analyzed on a project-specific basis <br />