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785.19 (a) Hubbard Creek and its associated floodplain qualify as being adjacent to the proposed mining operations and be- ing a valley holding a stream in the arid or semiarid regions of the U.S. west of the lUOth meridian. (c)(1) The applicant must therefore provide the necessary in- formation required by the regulatory authority to make a determination as to whether the floodplain of Hubbard Creek constitutes an alluvial valley floor. Land areas which need to be investigated should be identified by the applicant thzough consultation with the regulatory authority. Subsequent studies should provide the inform- ation described in this paragraph of the permanent reg- ulatory authority. This includes: (i) mapping of unconsolidated scream-laid deposits hold- ing streams, (ii) mapping of all lands subject to agricultureal activ- ities, (iii) mapping of all lands that are currently or were his- tonically flood irrigated, (iv) documentation that the identified lands are, or are not, subirrisated, (v) documentation that the identified areas are, or are not, flood irrigable, and (vi) analysis of aerial photographs to show seasonal dif- ferences in vegetation patterns. General Comments Methods for restoring areas disturbed by roads and associated erosion control structures (which will be abandoned after mining is completed) are inconsistent with those required by the rules and regulations. There are three revegetation plans included in this application. The three plans cause confusion which should be eliminated. Tiie revegetation map exhibits a great deal of information and is difficult to understand. It may be mislabled in some cases. For example, an area is labled "Berm on Access Road" but no road appears to be within l0U feet of the label. The fact tnat the scope and nature of the mine plan seems to have changed over the time period taken to generate the various maps and documents in the application creates confusion and makes it difficult to know which narrative, map, or document applies to the 13