FIELD DOCUMENTS_PART 3 FILE 2 - Laserfiche WebLink

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January 2, 2007 NOA PROJECT NUMBER E06109A Attached is the borehole log for monitoring well LP-513 (see Appendix B - Plate 132). Monitoring well LP-513 was advanced to a total depth of 25 feet bgs. Monitoring well LP- 513 was designed to be screened between 10 and 25 feet bgs. 3.4 Soil Lithology Description Soil descriptions were made based on the Unified Soil Classification System. Soil was observed in the sampler (approximately 1.5 feet long) every five feet, drill cuttings were observed, and drill speeds and drill conditions were watched in an attempt to help identify the lithology of the boreholes. 3.4. 1 Lithology of Borehole LP-5B The Lithology of the borehole is dipicted on the borehole log for monitoring well LP-513 (see Appendix B - Plate 132). The screened interval appeared to be mostly sandy material. Saturated conditions were encountered within the borehole at 15 feet bgs to the total depth of the borehole. 3.5 Monitoring Well Installation The original monitoring well LP-5 was constructed to a depth of 25 feet bgs; the new replacement monitoring well LP-513 was constructed to a depth of 25 feet bgs. The monitoring well was constructed on December 19, 2006. The monitoring well completion log is presented on Appendix B - Plate 132. The monitoring well LP-513 was developed on December 22, 2006. 3.6 Monitoring Well Survey Monitoring well elevations and horizontal locations were determined by professional survey. Shoup Land Surveying was onsite on December 22, 2006 to conduct the survey of the monitoring well casing. The professional surveyor's letter of transmittal of survey results is included as Appendix C - Monitoring Well Survey. Location and elevation information is also included on the borehole log of the well. The well location shown in the site map (Appendix A - Plate 3) reflect the relative well position as determined by professional survey. 4 "0144