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M'' <br /> -7 <br /> :99RRE <br /> Product thlcknoun 10 CaAculatod by subtracting the depth to <br /> Product from the depth to water. in addition, water <br /> OlQvat1OnQ are adjusted for the prona,*1co of fuel with the <br /> following calculation: <br /> (Product Thickness) ( -8)+(Watar Elevation) <br /> - Corrected Water Elevation <br /> Nota: The factor of 0-8 accounto for the density difference <br /> between water and petroleum hydrocarbons. <br /> Newly Installed well* will be allowed to Stabilize for 24 <br /> hours after devolopmant prior to free product InDPactlon. <br /> An acrylic Surface Sampler will be used for visual <br /> inspection of the groundwater In order to note sheens <br /> (difficult to detect with the Xntorfaca Probe), odors, <br /> m1crobleA action and sadImants. The sampler In calibrated <br /> In Inchon and cantimotara for visual inapection of product <br /> thIr-knena. <br /> To reduces tho Potential for croan Contamination between <br /> wells, the monitorings will take place In order from the <br /> least to Most contaminated, <br /> If known. Walls containing free <br /> product will bo monitored last. Between each well <br /> monitoring the equipment will, be decontaminated. <br /> Water loval data collected from the wells will be unod to <br /> develop a groundwater contour map for the project <br /> Groundwater flow will be estimated to be site. <br /> *QuIPOtentlal lines drawn an the map, <br /> perpendicular to <br /> 10.0 Wall Developgmnt Protocol <br /> Groundwater monitoring voila will be surged <br /> prior to setting <br /> the surface seal. and developed <br /> Approximately 10 times <br /> the volume of water In the casing will be withdrawn If <br /> Possible. Casing volumes will be calculated in the <br /> f011Ow4 manner: <br /> Valu=e of Schedule 40 PVC pipe <br /> Diameter I.D. Volume <br /> (inches) (inches) Gal/linear ft. <br /> -------------------- <br /> 2 2.067 0.17 <br /> 4 4.026 0066 <br />