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Section 785.19(c) Continued. <br /> <br />Revised 11/20/80 <br />1980; and in response to the concerns expressed by the MLR and OSM <br />technical staff during the pre-filing introductory meetings held in <br />April, 1980. The investigation consisted of reconnaissance of the <br />general and tipple areas shown on Map Sa, North Park Hydrology, <br />detailed research of the mine plan area shown on Map 16a, Kerr Mine <br />Area Surface Water Hydrology, and Exhibit 37a, Flood Irrigation <br />Feasibility Study. The investigation was conducted using the <br />scientific method of reviewing available literature; defining the <br />categories of data collection and the areas to be studied in de- <br />tail; collecting field data and observations; assimilating data <br />into tables, diagrams and maps; interpreting the data in each <br />category; and drawing final conclusions. In accordance with 30 CFR <br />785.19(c), this report is divided into three major subheadings: <br />Geomorphic Characteristics; Water Availability Characteristics; and <br />Alluvial Valley Floor Determination. <br />• GEOMORPHIC CHARACTERISTICS <br />Mapping of Unconsolidated Deposits <br />The investigation was initiated by mapping unconsolidated alluvial <br />deposits within the mine and tipple areas, using published geologic <br />maps and field observations. Unconsolidated alluvial deposits are <br />shown on Map Sa, North Park Hydrology, and in more detail on Map 16a, <br />Kerr Mine Area Surface Water Hydrology, and on Map 17a, Kerr Tipple <br />Area Hydrology. <br />Geologic information was used from the Preliminary Geologic Map of <br />the Gould Quadrangle, North Park, Jackson County, Colorado, 1970, <br />by D. M. Kinney (USGS Open-File Report 70-182); Ground Water Re- <br />sources of North Park and Middle Park, Colorado - A Reconnaissance, <br />1965, by P. T. Voegeli (USGS Water Supply Paper 1809-G); Late <br />785-6 as <br />