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Monitoring Well Installation Workplan - 2 - <br /> Monitoring <br /> 2 - <br /> Monitoring Well Installation Report <br /> E. Surveying Details: discuss how each well will be surveyed to a common reference point horizontal <br /> and vertical survey data is required. <br /> F. Soil Sampling (if applicable): <br /> Cuttings disposal method <br /> Analyses to be run and methods <br /> Sample collection and preservation method <br /> Intervals at which soil samples are to be collected <br /> Number of soil samples to be analyzed and rationale <br /> Location of soil samples and rationale <br /> QA/QC procedures <br /> G. Well Sampling: <br /> Minimum time after development before sampling (48 hours) <br /> Well purging method and amount of purge water <br /> Sample collection and preservation method <br /> Table describing sample volumes, sample containers, preservation agents, and hold times <br /> QA/QC procedures <br /> H. Water Level Measurement: <br /> The elevation reference point at each monitoring well shall be within 0.01 foot. Ground <br /> surface elevation at each monitoring well shall be within 0.1 foot. Method and time of water <br /> level measurement shall be specified. <br /> I. Proposed time schedule for work. <br /> Monitoring Well Installation Report of Results <br /> A. Well Construction: <br /> Number and depth of wells drilled <br /> Date(s) wells drilled <br /> Description of drilling and construction <br /> Approximate locations relative to facility site(s) <br /> A well construction diagram for each well must be included in the report, and should contain <br /> the following details: <br /> Total depth drilled <br /> Depth of open hole (same as total depth drilled if no caving occurs) <br /> Footage of hole collapsed <br /> Length of slotted casing installed <br /> Depth of bottom of casing <br /> Depth to top of sand pack <br /> Thickness of sand pack <br /> Depth to top of bentonite seal <br /> Thickness of bentonite seal <br /> Thickness of concrete grout <br /> V:\S=Joaquin_Nm IS\StafAObrim'RSan Joaquin\Arbor IAJ each C.dm <br />