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in the reference area, reverse null testing would employ Satterthwaite corrected two sample t-testing. 18. OMLR noted that the mid summer timeframe for sampling specified in the application might be overly restrictive, given the growth patterns of the introduced cool season pasture grasses and legumes utilized in the New Horizon Reclamation. The section was properly revised. Item Resolved. New Review Comments 19. The Tab 22 Table of Contents does not correspond to the page numbers of the amended Tab 22 narrative, tables, and appendices. Please amend the Table of Contents section as appropriate. 20. Table 22-5 indicates that the production standazd for NH-1 dryland pasture reclamation is to be based on comparison to a technical standard of 500 pounds per acre. For the same basic reason discussed above under Comment 13, use of a technical standazd for production is problematic. A dryland pasture reference area has been established for demonstration of successful cover establishment, and we believe it would be appropriate to designate the same reference azea to be used as the method for demonstration of dryland pasture production success comparison. Please amend Table 22-5 to specify use of the dryland pasture reference area for NH-1 production success demonstration. 21. There currently are no species diversity success criteria applicable to the pastureland or cropland types within the NH-1 or NH-2 mine azeas. Diversity requirements had been waived in the past, due to the focus on establishment of a relatively small number of improved pasture grasses and legumes. OMLR believes it is true that traditional diversity criteria applied to rangeland and wildlife habitat reclamation areas are not appropriate for New Horizon agricultural lands. However, as discussed at the mine site meeting on May 2, 2006, involving NRCS, OMLR, and WFC representatives, criteria to ensure that reclaimed azea vegetation is of acceptable quality (i.e. primazily composed of desirable species) is warranted. An example of the type of criteria that might be appropriate would be: "At least 75% of the relative cover or relative production will be comprised of seeded species or species of compazable quality as livestock forage, and no more than 3% relative cover or relative production will be comprised of county listed noxious species". Because cropland areas might otherwise be harvested and not sampled, sampling of cropland areas to make the relevant demonstration would be necessary. For the purposes of the "quality" demonstration, species composition percentages based on a statistically adequate cover or production sample, or minimum of 30 observations, would be acceptable. Finally, because Jim Boyd of NRCS brought up this concern at the May meeting, please contact him in regazd to development of appropriate "quality" standazd or standards. Please amend the revegetation success demonstration success sections of the application to inlcude species composition quality criteria for NH-1 and NH-2 dryland pasture, irrigated pasture, and irrigated cropland vegetation types.