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" I <br /> . l <br /> R,ESNA Industries Inc. <br /> i <br /> Quality Assurance/Quality Control Plan <br /> Revised November 1993 <br /> F <br /> To reduce the potential for cross contamination between wells, the monitorings will take la <br /> g 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 /> 1 <br /> I <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 Approximately 10 times the volume of water in the casing will be withdrawn if possible.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: F <br /> 1 <br /> VOLUME OF SCHEDULE 40 PVC PIPE <br /> Diameter (inches) I.D. {inches) Volume . <br /> Galliinear feet <br /> 2 2.067 0.17 <br /> 4 4.026 0.66 <br /> VOLUME OF OPEN BOREHOLE AND ANNULAR SPACE BETWEEN CASING AND HOLE.'. <br /> Hole Volume/Linear Feet of Hole Nominal VolumelLinear Feet 'o#:; <br /> Diameter Casing Annular S.pecet . : <br /> (inches) Gallons Cubic Feet (inches) Gallons Cubic Felt <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 0.82 4 5.30 0.71 <br /> r <br /> Annular volumes will be multiplied by 30%to account for porosity of filter peck. f <br /> QAQcIM.FNL g <br /> h <br />