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Mr. William T. Davis - 2 - April 25, 1989 <br />Rule 2.04.7(1 ) <br />The Division is aware that additional ground water data was gathered after <br />that supplied by the SOAP study and incorporated in Table 3. This additional <br />data is included, without reference, in Appendix 4. A supplement to Table 3, <br />eg. a Table 3A, should be provided in order that this additional baseline data <br />be presented and any seasonal variations be more readily determined. This <br />supplementary tabulation or table should be placed adjacent to Table 3 and <br />included in the index. <br />Rule 2.04.7(2) <br />In contrast to the additional ground water data, there is no indication that' <br />additional surface water data was gathered after that supplied by the SOAP <br />study. The applicant was advised that continuation of monitoring after the <br />completion of the SDAP study would be necessary in order to secure adequate <br />baseline data. If additional surface water data was in fact secured, it <br />should be provided in the application in a form similar to that requested for <br />the additional ground water data. If, however, there were no flows in <br />Engleville Gulch during monitoring trips, this should be stated. This <br />information is needed to determine seasonal quantity and quality of surface <br />water in Engleville Gulch. <br />Rule 2.04.7(3) <br />The statement included in the application was made as part of the SOAP study <br />before certain changes were made in the mine plan and the full effect of <br />mining into underground workings was understood. Mining in the Engleville <br />drainage could conceivably interrupt or degrade the water flow through the <br />drainage for any downstream users. These possible impacts have not been <br />discussed. Phase 2 mining may intersect water flooded workings of the old <br />Engleville Mine, currently discharging at point EMD. Since this discharge is <br />being used for supply of a stock pond, and ultimately becomes base flow for <br />Engleville Gulch, discussion of the effects of eliminating this source of <br />water should be made. If alternative sources of water are then considered <br />necessary, they should be identified. <br />Rule 2.04.9 (1)(c) <br />The information submitted only delineates the gyon-Capulin soil complex as a <br />whole and not the fractions of the complex composed of the Ayon and Capulin <br />soils separately. This limits the ability to determine the true extent of the <br />soil resources available, which in turn limits the ability to determine a <br />suitable stripping depth. According to Rule 2.04.9, the applicant shall <br />provide adequate soils information to determine the physical and chemical <br />properties as well as the variability and complexity of the soils within the <br />permit area. Therefore, it is suggested, in order to satisfy these <br />requirements, that several (approximately one (1) per five (5) acres) soil <br />pits be dug cross sectional to the topography and the exposed profiles _ . <br />described. The resultant data should then be mapped to detail the extent of <br />each soil in. the proposed disturbance area.- -In conjunction with this, two <br />samples from each pit (one from the A horizon and one from the B horizon) <br />