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sampling: The text should be amended for clarification, and reference to a t-test with <br />regazd to success determination for the annual grain crop should be eliminated. <br />It is not cleaz whether irrigated hayland production would be determined by total field <br />harvest or by quadrat sampling, and this should be clarified. If sampling is to be used, <br />the operator should reference use of the one sample t-test as specified on page 2.05.4-25R. <br />The one sample test is appropriate because the reclaimed azea production data would be <br />compared against a set standard, so only one sample is involved in the comparison. <br />Finally, the numerical standard for irrigated crop production needs to be included in the <br />text as previously requested. <br />21. Amended page 2.05.4-32R states that "revegetation of the reclaimed sites will be deemed <br />successful when measurements of reclaimed total cover and productivity aze at least 90 <br />percent of the cover and productivity values for the reference azea with 90 percent <br />statistical confidence." <br />The intent is appazently to indicate that reclaimed azea total cover and total production <br />would be compazed against reference area total cover and total production, but the <br />statement should be re-worded to make this clear. While the Division had previously <br />requested that total cover be specified as the applicable success standard, we had not <br />requested that total production be specified. The applicable regulation (4.15.8(4)) <br />specifies herbaceous production, rather than total production, and the total production <br />success standard would be more stringent than required. <br />23. a) The text was amended as requested to specify that the 1000 stem per acre woody plant <br />density standard applies to all rangeland/wildlife habitat reclaimed azeas. Cyprus <br />indicated that no augmentive treatments were planned at this time for azeas exhibiting low <br />woody plant densities. These azeas should be checked on the ground in the coming field <br />season, and the potential for future natural invasion as referenced by the operator should <br />be evaluated. <br />23. c) and g) The issue of land use and revegetation plans for the No. 9 portal area and <br />vicinity is still not fully resolved. In order for the Division to approve both the cropland <br />(small grain) land use and the dry pastureland use, to be determined by the operator at the <br />time of reclamation, additional information is necessary concerning the revegetation plan, <br />seedmix, species diversity standard, and reference area for pastureland. <br />On page 2.05.4-16Ra, the text states that "the No. 9 portal area may be seeded with the <br />pastureland seed mixture if this land use coincides with adjacent land use. The seed <br />mixture will be determined at the time the site is reclaimed." On page 2.05.4-24R, <br />however, the text indicates that pastureland is one of the proposed land uses, and <br />references a pastureland seed mixture (Table 66). This seems contradictory, and <br />clarification is needed. A revegetation plan and seedmix applicable to the alternative <br />dryland pasture land use will need to be included in the application in order for the <br />Division to approve the land use. <br />