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• Field Blank: Prepared in the field using organic-free water. Field <br /> blanks accompany project site samples to the laboratory and are <br /> analyzed for specific chemical parameters unique to the project site <br /> where they were prepared. <br /> • Duplicates: Duplicated samples are collected "second samples" from a <br /> P P <br /> selected well and project site. They are collected as either split samples <br /> or second-run samples collected from the same well. <br /> • Equipment Blank: Periodic QC samples collected from field <br /> equipment nnseate to verify decontamination procedures <br /> The number and types of QC samples are determined and analyzed on a project-specific <br /> basis <br /> Shallow Groundwater Survey <br /> A shallow groundwater survey employs reconnaissance field sampling and chemical <br /> analysis for rapid plume mapping. A stats at locationsmobile <br /> marked by the RESNA field <br /> The subcontractor would sample for analysis <br /> geologist. The thin-diameter probes from which groundwater is collected are advanced <br /> to the water bearing stratum and a groundwater <br /> backfiiled with a to <br /> slurry or athe surface, s <br /> analyzed immediately thereafter. Probe holes are <br /> the local permitting agency' results <br /> chemical <br /> Thesis to RESNA contractor wRESNA considill report the ers thisdtype of sampling, purging, and cheical a y <br /> shallow probe mapping (together with shallow groundwater sampling) to be a <br /> reconnaissance technique only. <br /> RESNA INDUSTRIES INC, <br /> Groundwater Sampling Protocol <br /> Latest Revision. September 18, 1992 <br />