Laserfiche WebLink
M N(1r7 <br /> Quality Assurance/Quality Control Plan Page 7 <br /> An acrylic Surface Sampler will be used for visual inspection of the groundwater in order to note <br /> sheens (difficult to detect with the Interface Probe), odors, microbial action and sediments The <br /> sampler is calibrated in inches and centimeters for visual inspection of product thickness <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 Well 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 protect 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 pnor 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 Approximately 10 times the volume of water in the casing will be withdrawn if possible Casing 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 I D VOLUME <br /> (inches) (inches) Gal/linear it. <br /> 2 2067 017 <br /> 4 4 026 066 <br />