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1 — <br /> O <br /> SIERRA <br /> Clint Rogers Page 7 <br /> October 30, 1991 <br /> SES Project #1-146-01 <br /> Task 6 - Surveying and Ground Water Gradient <br /> The top of casing elevations of the new well will be surveyed by a licensed land surveyor <br /> The casing elevation will be surveyed relative to mean sea level using a USGS benchmark <br /> Water and product (if present) levels will be measured in all wells associated with the site <br /> using an MMC flexi-dip interface probe Water and product levels will be reported to the nearest <br /> 1/100th of a foot A ground water contour map will be prepared using survey and water level <br /> data <br /> Task 7 - Drill Cuttings Disposal and Monitoring Well Purge Water <br /> Disposal of the soil cuttings will be based on the analytic results The monitoring well <br /> development and purge water will be taken to a Chevron-designated disposal facility <br /> Task 8 - Report <br /> A report presenting the results of the investigation will be prepared The report will <br /> include <br /> Text <br /> - Summary of the results <br /> - Site background and history <br /> - Topographic and geologic setting <br /> - Description of soil sampling and subsurface sediments <br /> - Monitoring well installation <br /> - Depth to ground water and ground water flow direction and gradient <br /> - Conclusions <br /> Tables <br /> - Tabulated soil and ground water analytic results <br /> - Ground water elevation data and well construction details <br />