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EIVGEO <br /> INCORPORATED <br /> o Well boring log: <br /> ■ Well boring number and date drilled <br /> ■ Borehole diameter and total depth <br /> ■ Total depth of open hole <br /> ■ Depth of first encountered ground water and stabilized groundwater depth <br /> ■ Detailed description of soils encountered, using the Unified Soil <br /> Classification System <br /> • Well Installation Details <br /> o Monitoring well number and date constructed <br /> o Casing and screen material, diameter, screen slot type and width, type of <br /> connections and centralizer locations <br /> o Depth intervals of blank and screened casing segments <br /> o Depth intervals for annulus backfill materials (i.e., formation stabilizer, sanitary <br /> seal and surface seal <br /> o Type, grain size and amount of formation stabilizer used <br /> o Composition and mix ratio of sanitary and surface seals used <br /> o Surface completion details <br /> • Well Development Details <br /> o Date of and development methods used <br /> o Purging volume, rate and duration <br /> o Purge water disposal method <br /> o Record of field parameter measurements <br /> o How well development completion was determined <br /> • Well Survey Details <br /> o Coordinate system and datum description <br /> o Reference points <br /> o Table of well coordinates and elevations <br /> o Licensed Surveyor's field notes <br /> • Groundwater Sampling and Analysis Details <br /> o Field Groundwater Purge and Sampling Forms containing: <br /> ■ Sampling location and date <br /> ■ Purging method, amounts and rates <br /> ■ Field parameter measurements and determination of stabilization <br /> ■ Sample ID, time, containers and preservatives <br /> o Chain-of-Custody forms <br /> o Tabular summary and discussion of analytical results <br /> o Analytical reports from the laboratory <br /> o Discussion of the degree to which data quality objectives have been met based on <br /> results from quality control and quality assurance procedures <br /> • Conclusions and recommendations that describe, at a minimum, the completeness of the <br /> groundwater monitoring program and any modifications to the program, as needed. <br /> 4943.4.640.01 <br /> April 17, 2007 18 <br />