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L'II <br />SOILS REPORT, BOWIE MINE {i2, 2003 <br />GENERAL <br />This report is supplemental to several previous studies conducted in the same general area of .- <br />Bowie Mine /J2 near Bowie, Colorado. Access to the site was gained on July 18, 2003. The <br />site is adjacent to and east of an area that was surveyed in 1995 and encompasses about 50 <br />acres of sloping soils and exposed rocks cut by severe canyons and gullies. <br />METHODS <br />Soil samples and soil profile descriptions were obtained by either a 3" bucket augur or a 1 <br />1/4" bucket hand augur. The soil was extremely dry at time of sampling. The profiles were <br />examined for depth to pazent material or extreme rock content. AlI sites had a very shallow <br />(<1") Ao and/or A, horizon which was included in the B horizon for analysis and <br />description. Thus, the horizon sampled and described may be considered the A-B horizon, <br />since it would be impractical to attempt to separate any A horizon present. The sample <br />locations are designated on the accompanying map. The C horizons were variable and very <br />rocky before encountering either a sandstone or granitic parent material. A sample of the C <br />horizon was analyzed as well in case some of this material would be included in the process <br />of salvaging of the A-B horizons. <br />Due to the severe topography, the soil types are quite variable across the region. . _ <br />CHARACTERIZATIONS <br />Please refer to the previous study conducted in 1995 for detailed descriptions of the soils <br />encountered at the site. The predominate soils include the Woodlands fine silt loam and <br />Meadow silt loam. The Woodlands fine silt loam handles like a silty clay loam and is of a <br />particularly fine quality. A small azea of the slope soil is found at location 5, and due to its <br />location it may be difficult to salvage. There is a bit of the slope soil located at position 7 <br />and it also may be difficult to obtain. There aze no wetlands soils or south facing acidic <br />soils in this study area. <br />All of the samples had relatively low salt contents and low sodium adsorption ratios, <br />indicating an absence of excess sodium in the area. This is similar to the azea described in <br />1995. Also, the fertility levels are quite low with the exception of potassium; it is inherently <br />adequate in the study azea. The micronutrient levels (iron, manganese, zinc and copper) <br />were found to be present in sufficient quantities to adequately support plant growth. <br />CONCLUSIONS <br />Conclusions aze similar to those reached in the 1995 study; only the Woodlands and Meadow <br />• soil should be salvaged and stockpiled for further remediation. The C horizons are much too <br />rocky to be considered, but it is inevitable that some would be included in the salvage <br />process. <br />~"~- 3 0 <br />/~i PPRoucD 3/Z3/o y <br />Volume III -Tab 7 - 1 -. .. 11/03 <br />