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Supplemental Soil Report, Bowie, Colorado Area Coal Mine <br />This soils report is subsequent to a soil survey and report that was completed in 1995. This <br />supplemental survey was conducted on several small additional azeas to be disturbed neaz <br />Bowie, Colorado on September 12, 1998. A map showing the locations of the azeas and <br />sample holes was submitted eazlier. <br />The fast parcel, designated by Area 1 in subsequent tables, was located just below an old <br />brick house now used as an office for the existing coal mine. It is in old alfalfa, and appeazs <br />to not have been irrigated or cultivated in some time. The second parcel is located across <br />the road, and is designated as Area 2. In both azeas, a main observation hole as made by a <br />4" bucket auger. Additional sample holes were made by an Oald'ield auger. Sub-samples <br />from 4 azeas were mined together to make a sample at 2 locations in each small azea. Since <br />both areas appear to have been disturbed at one time, probably by a disk, there was no <br />discernible Ao horizon. However, there was a distinct Ai and B horizon at each azea. The H <br />horizon graded into a very rocky and unusable C horizon. Depths of the A and B horizons <br />have been submitted. The combined A horizon subsamples and combined B horizon <br />subsamples were analyzed separately. <br />The soils are described in Tables 1 through 4 with respect to thew physical, fertility, salinity <br />and color characteristics. The physical characteristics were determined by sieving and <br />hydrometer analyses; fertility from ammonium bicarbonate-DTPA extracts; and, salinity from <br />• saturated pastes and their extracts. <br />The soil of both areas is similaz to those reported as the "Meadow" series in the previous <br />report, a typic Haplorgid. The soils aze good in quality; that is, they aze low in salinity and <br />sodium adsorption ratios and of acceptable textures for tillage. The fertility levels aze <br />relatively low and small additions of fertilizer should be used in the event that the soils <br />should be vegetated. Nitrogen and phosphorus need to be added for optimum establishment <br />of vegetation; about 40 pounds per acre each of nitrogen and phosphorus should be added <br />and worked into the upper portion of the soil. <br />Please see the accompanying tables for detailed analysis description. <br />Submitted by: <br />~`~?~ <br />Daniel F. Champion <br />Certified Soil Scientist <br />• <br />