Table 2. Standard methods in use by the DRI Water Analysis Laboratory (Rcno, NV). Parameter Standard Method i i pH EPA-600/4-79-020, Method 150.1 Specific Conductance EPA-600/4-79-020, Method 120.1 Alkalinity USGS, Method 1-2030-85 Chloride EPA-600/4-79-020, Method 325.1 Sulfate EPA-600/4-84-O17, Method 300.0 Sodium EPA-600/4-79-020, Method 273.1 Potassium EPA-600/4-79-020, Method 258.1 Calcium EPA-600/4-79-020, Method 215.1 Magnesium EPA-600/4-79-020, Method 242.1 Silica USGS, Method 1-2700-85 Bromide EPA-600/4-84-O 17, Method 300.0 Nitrate and Nitrite EPA-600/4-79-020, Method 353.2 I I Water Content Analysis Water content on weight and volume basis was determined for Pilot Well and Science Trench boreholes. Data are presented in Appendix A. Water content profiles from the three Pilot WeUsillustrate that water content values are very low and do not change much through the unsaturated zone. There is only a slight increase in water content with depth and a very significant increase, as would be expected, near the water table (Figures 3 and 4). Ploaed vertical profiles from the Science Trench boreholes indicate that water content values are also very low and constant throughout the approximately 120 ft of alluvium penetrated. The only noticeable trend is a slight increase in water content with depth (Figures 5 and 6). Soil Bulk Density Bulk density is an input parameter for numerical simulations of fluid, heat, and solid transport. Bulk density data arepresented in Appendix A. Plots of bulk density vs. depth forthe Science Trench boreholes (Figure 7) show no consistent trend within or between boreholes except for a slight increase in bulk density with depth in the upper 20 ft of each borehole. This increase may be a sampling artifact. No consistent trend in bulk density with depth was identified in the Pilot Well boreholes (Figure 8). Soil Water Potential Depth profiles of water potential data from the Pilot WeUs and the Science Trench bo,'eholes are summarized in Appendix A. Physical and hydrologic data for Ue5PW-2, Ue5PW-2A, Ue5PW-2B and Ue5PW-2C. Depth Total Gfrav. Bulk Vol. Water Sample Borehole Interval Potential Water Density Water Potential ID No. fit) CX-2 (KPa) Content (gr/cm3) Content Filter P. (IGUa)

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In this work, the degradation of lignin was studied through a combined process of ionizing irradiation and a biological treatment. For the irradiation stage, two options were tested at the beginning: a gamma irradiation from a Cobalt source at a dose rate of 0.4 kGy/h and a beta irradiation from a linear electron accelerator at a dose rate of 827 kGy/h, in both cases for a dose of 10 kGy. Through UV-visible spectrophotometric scanning, we found better results for the lignin degradation by the beta irradiation; therefore, five higher doses: 20, 30, 40, 50 and 60 kGy were tested. Spectrophotometry, infrared spectrometry and waste water analysis allowed to determine 60 kGy as the best dose. Finally, an anaerobic biological treatment was used for the subsequent degradation of lignin. It was carried out as a batch process that lasted approximately 11 days. The combined process enhanced the BOD