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Table 4.1 Volume Estimates for Santa Fe Road Disposal Site <br />Property <br />Volume <br />Cubic Yards <br />Delta Funding (Lynch) <br />63,615.5 <br />Beard (Lane) <br />48,141,5 <br />Beard <br />2,176 <br />Waller MCAnaI <br />13,146 <br />Total <br />127,079 <br />5. Field Sampling <br />Per the Site Investigation Work Plan (Appendix A), discrete samples were collected during <br />and/or following completion of excavating activities at each trench location. The samples were <br />collected using the authoritative sampling protocol that allowed for flexibility to accommodate <br />unforeseen conditions. The sampling was conducted over a 4 -day period, 22-24 October 2002. <br />5.1 Sampling Locations and Procedures <br />Utilizing the site map provided by Ninyo and Moore, trench locations were established via the <br />use of global positioning system equipment on 15-16 October 2002. Also, additional trench <br />locations were established during the investigation based on inspection information provided by <br />the LEA. <br />Discrete samples of soil and/or bum ash were taken from each trench while on site. The depths, <br />from which the samples were taken, were determined base upon the conditions of the trench at <br />the time of excavation. Soil and waste samples were collected from trench spoils in brass <br />sampling sleeves, sealed with Teflon paper, capped and labeled in accordance with the <br />investigation work plan. The samples were packed in ice placed ice chests and were picked up by <br />ExcelChem Laboratory personnel at the end of each day. Chain -of -Custody forms were <br />completed and, signed at time of release. <br />During trenching operations gas screening was conducted by use of a GMI 422 Gas Surveyor, <br />for methane (CH4), hydrogen sulfide (H2S), and carbon monoxide (CO). Samples of gas were <br />not taken. Gas readings did not exceed established thresholds. Additionally, random testing was <br />done using a Ludlum Radiation Detection Monitor. No significant radiation levels were detected <br />during the investigation. For Sampling Logs refer to Appendix E. <br />M <br />