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RESNA Industries Inc. ��A�� <br /> Quality Assurance/Quality Control Plan <br /> Revised November 1992 <br /> To reduce the potential for cross contamination between wells, the monitorings will take place <br /> in order from the least to most contaminated, if known. Wells containing free product will be <br /> monitored last. Between each well monitoring the equipment will be decontaminated. <br /> Water level data collected from the wells will be used to develop a groundwater contour map <br /> for the project site. Groundwater flow will be estimated to be perpendicular to equipotential <br /> lines drawn on the map. <br /> 10.0 WELL DEVELOPMENT PROTOCOL <br /> Groundwater monitoring wells will be surged and developed prior to setting the surface seal. <br /> Approximately 10 times the volume of water in the casing will be withdrawn if possible. Casing <br /> volumes will be calculated in the following manner: <br /> VOLUME OF SCHEDULE 40 PVC PIPE <br /> Diameter (inches) I.D. finches) Volume <br /> Gal/linear feet <br /> 2 2.067 0.17 <br /> 4 4.026 0.66 <br /> [Din <br /> UME OF OPEN BOREHOLE AND ANNULAR SPACE BETWEEN CASING AND HOLE <br /> Hole Volume/Linear Feet of Hole Nominal <br /> Volume/Linear Feet of <br /> meter Casing Annular Space" <br /> ches) Diameter <br /> Gallons Cubic Feet (inches) <br /> Gallons Cubic Feet <br /> 7.25 2.14 0.29 2 1.91 0.26. <br /> 8.25 2.78 0.37 2 2.55 0.34 <br /> 10.25 4.29 0.57 2 4.06 0.54 <br /> 10.25 4.29 0.57 4 3.46 0.46 <br /> 12.25 6.13 1 0.82 4 5.30 0.71 <br /> ' Annular volumes wip be multiplied by 30%to account for porosity of filter peck. <br /> QAQc10".Fn 8 <br />