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by employing a "reverse null" hypothesis test, than by obtaining the number of sample <br />observations necessary to meet statistical sample adequacy. For normally distributed data, a <br />minimum sample size of 15 is recommended. For sampling data that is not normally <br />distributed, a minimum sample size of thirty should be collected. <br />For 2002 irrigated pasture reclamation area Greystone collected 50 samples. Although the data <br />did not achieve sample adequacy application of the "Reverse Null" hypothesis demonstrated <br />that reclamation success was achieved and this more stringent test eliminates the requirement to <br />achieve statistical sample adequacy since the minimum sample size was achieved. <br />Cover <br />2001 vegetative cover data for the irrigated pasture was collected to adequacy for both the <br />reclaimed azea and the reference azea. Irrigated pasture reference area cover in 2001 was 22.6%. <br />Ninety percent equals 20.3% cover as the required cover success standazd based upon the 2001 <br />sampling. Vegetative cover on the irrigated pastute in July 2001 measured 42.7%. The <br />reclaimed aze successfully achieved and exceeded the required cover standazd for 2001. <br />Although productivity data was not collected to adequacy in 2002, cover data on the irrigated <br />pasture reference area and irrigated pasture reclaimed azea were collected to adequacy. <br />Vegetated cover measured on the nrigated pasture reference azea in June 2002 was 8.2%, not <br />including noxious species or undesirable fortis. The ninety percent standazd as required by Rule <br />4.15.8(3) equals7.38% vegetative cover for 2002 data. Measured vegetative cover on the <br />reclaimed irrigated pasture in 2002 was 8.06%, not including noxious species or undesirable <br />fortis. <br />Species Diversi <br />The reclamation success for species diversity calls for the establishment of three cool-season <br />perennial grasses and one perennial forb. Each species must have a minimum relative cover of <br />3 percent and a maximum relative cover of 40 percent. Four grass species; Smooth brome, <br />Slender wheatgrass, Westem wheatgrass, and Orchazdgrass meet this criteria, while Alfalfa <br />achieves the perennial forb requirement in the 2001 reclaimed irrigated pasture area. No single <br />species exceeded the upper limit of 40 percent relative cover. 2002 reclaimed irrigated pasture <br />data demonstrated that three perennial grasses, Smooth brome, Slender wheatgrass, and Westem <br />wheatgrass fulfill the required diversity standazd, and Alfalfa meets the perennial forb <br />requirement for species diversity. <br />Reclamation Success <br />Kaiser Ventures has achieved reclamation success for cover, productivity, and species diversity <br />for the irrigated pasture based on 2001 and 2002 sampling data. <br />