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Appendix A - Vegetation Sampling for Phase III Bond Release E successful. Refer to Tables A-19 and A-20 for a summarization of the 2006 production data collected on the AVF Reference Area and Irrigated Pasture Reclaimed Area sampling units. Analysis of production data collected on the Rangeland Reclaimed and Reference Areas in 2006 produced the following result: Step 1: Ms. - 3.795 + (.9 * 1.028)2 t - 30 30 SEsat =1.2166 Step 2: dfsat = 2.2152 1.2082 + 0.1876 ( 29 29 df.t = 30.134 The t-table value [one-tailed t-test value at the 90% confidence level(0.1), df--30] =1.310 27.8467 - (.9 * 18.6733) Step 3: t = 3.1261 t = 8.757 Since 8.757 > 1.31, the null hypothesis of equality is rejected. The Rangeland Reclaimed Area mean exceeds 90% of the Rangeland Reference Area mean, and reclamation is statistically evaluated as successful. Refer to Tables A-21 and A-22 for a summarization of the data collected on the Rangeland Reference Area and Rangeland Reclaimed Area sampling units. Density calculations were also based on the resulting total "dry" weights. The mean production density standard for the Irrigated Pasture Reclaimed Area during the year 2006 sampling event, established on the AVF Reference Area, is 332.5 lbs/acre. The estimated production density on the Irrigated Pasture Reclaimed Area is 495.9 lbs/acre, which exceeds the production density estimated on the AVF Reference Area. The sampled production density on the Irrigated Pasture Reclaimed Area exceeds the 90 percent standard when compared with the AVF Reference Area. The mean production density standard for the Rangeland Reclaimed Area during the year 2006 sampling event, established on the Rangeland Reference Area, is 31.0 lbs/acre. The estimated production density on the Rangeland Reclaimed Area is 218.1 lbs/acre. The sampled production density on the Rangeland • 2215_GoldenEagle MBOND 2006 3-10-08.doe A-12