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17. An additional discrepancy on map 2.04.9-1, the superscript (z) references tables 1 and 2. It is unclear what these tables 1 and 2 are since this is no[ Western Fuels- Colorado's usual numbering system. Please clarify which tables this superscript refers to. 18. The letter from Mr. Dean Stindt, of the Natural Resource Conservation Service, date October 14, 1992, for a negative determination of prime farmland in the permit area, does not cover the area Western Fuels-Colorado (WF) proposes to expand into. The letter was written in 1992, where as WF did not propose the permit boundary expansion until 1996. This October 14, 1996 letter only cover those lands that were included in permit area at the time the letter was written. A second letter from the NRCS written in 1996, that specifies that no prime farm lands exist within a specified land description. Please include this letter in the permit to verify that the NRCS had made a negative determination for prime farmland in the lands proposed in the permit area expansion as required by Rule 2.04.12. 19. On page 2.05.4(2)(d)-6, the text references clay lenses near overburden drill site 870E and references Map 2.05.4-1. Neither map 2.05.4-1 or map 2.05.3-1 show overburden drill site 870E. Will these clay lenses be encountered in this expanded permit area? Which map may drill site 870E be found on? If the clay lenses mentioned on page 2.04.5(2)(d)-6 will be encountered in this permit area expansion, what type of mitigation does WF propose? 20. A typographical error exists in table 2.05.4(2)(d)-1. Soil unit lEW should be corrected to read "Lithic Haplaquoll" 21. On page 2.05.4(2)(d)-10 the footnote regarding actual topsoil salvaged has been eliminated. Table 2.05.4(2)(d)-1 includes the information pertaining to the reduced salvage depth. WF may want to retain the explanation regarding the reduced topsoil salvage depth to clarify this variance from projected topsoil stripping depths. 22. WF has incorrectly quoted a Soil Conservation Service document, Important Farmland Inventory, Colorado, October 1982. Page 2.04.9-10 of the proposed permit revision states, "Colorado criteria limits prime farmland soils to a pH 4.5 to < 7.4 in any soil horizon." The actual criteria (Important Farmland Inventory, pg. 23) are: 'The soils have a pH between 4.5-8.4 in all horizons within a depth of 40 inches or in the root zone if the root zone is less than 40 inches deep; and" Colorado criteria have been further modified to add, "irrigated soils with bedrock within 40 inches of the surface and soil horizons that have a pH higher than 7.4 are considered as having high conductivity and therefore not prime;" If WF plans to reference the Important Farmland inventory-Colorado document, please have them correct the criteria statement.