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to clarify that this is the case, and include an appropriate section addressing success demonstration methods for the NH-1 Irrigated Hay Cropland area. c) While the general plans presented in the two sections conform with Rule 4.15.11 requirements, presentation to OMLR of a detailed protocol for data collection, evaluation, and presentation is strongly advised, prior to initiation of data collection for bond release (refer to the 1995 Bond Release Guideline document). d) The t-test listed under Item 3, on amended page 30 of Tab 22 is identical to the "general form" of the reverse null t-test as listed in Rule 4.15.11(2)(c). This is in fact the exact form of the "One Sample" t-test that would be employed if a technical standazd is involved. It is also the exact form of the t-test employed if a reference area is involved, and sample adequacy is achieved in the reference area, where the Standard ("Q" in the formula) is the reference azea sample mean (refer to the 1995 Bond Release Guideline for further explanation). However, in the event that sample adequacy were not achieved in the reference area afrer 30 or more sample observations, a more complicated two sample t-test, with Satterthwaite corrected standard error and degrees of freedom would be warranted, to demonstrate that the reclaimed azea population mean is greater than 90% of the reference area population mean, at the 80% level of statistical confidence. Please include a narrative commitment under Item 3 of the statistical procedures section, to clarify that, in the event that sample adequacy is not demonstrated in the reference area, reverse null testing would employ Satterthwaite corrected two sample t-testing. 6. OMLR requested a revised Premining Land Use Map and corresponding narrative and tables, delineating and describing land use categories in compliance with Rule 1.04(71), to cleaz up confusion and inconsistencies in the Sections 2.04.3 and 2.04.10 of the application, pertaining to the NH-2 mine area. A new map was prepazed and the narrative of Section 2.04.3 was substantially revised. The new map and text revisions are substantial improvements to the document, and the clazity of the section is much improved. Item Resolved. OMLR noted and operator had previously described concerns regarding the high extent of perennial forb cover and low extent of perennial grass cover on the Dryland Pastureland reference area. Apparently, drought conditions since 1999 have resulted in substantial die off of grasses and increase in perennial fortis. Operator is concerned that the high cover provided by the fortis may make demonstration of cover success for dryland pasture areas difficult. The operator conducted a search of the general area in the vicinity of the mine, with the assistance of local NRCS and BLM personnel, but reports that they were unable to locate a preferable location for a dry pasture reference area, with the appropriate combination of soils, vegetative type, and management. For the present, the current dryland pasture reference azea will be retained; no change is being proposed within TR-54. For the purposes of TR-54, the Item is Resolved.