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mining. No adverse impacts, i.e. imminent failure of structure, were evident with regard <br />to these structures. <br />Subsidence monument surveys disclosed no unusual developments during the reporting <br />period. Subsidence magnitudes and projected draw angles were within the anticipated <br />ranges previously documented for the area. The angle of draw in the North Mining <br />District ranges between 17.5 to 19.5 degrees as follows; <br />1) Survey data over the 13-Right pane] indicates the angle of draw to be <br />approximately 19.4 degrees in the vicinity where the railroad track crossed <br />the headgate entry. <br />2) Survey data indicated the angle of draw to be approximately 17.6 degrees for <br />the 14-Right panel in the vicinity where the railroad track crossed the headgate <br />entry. <br />3) Survey data over the 15-Right panel indicated the angle of draw to be <br />approximately 18.8 degrees in the vicinity where the railroad track crossed <br />the headgate entry. <br />4) Survey data over the 16-Right panel indicated the angle of draw to be <br />approximately 18.3 degrees in the vicinity where the railroad track crossed <br />the headgate entry. <br />2004 hydrologic monitoring did not indicate significant impacts to Fish Creek. An iron <br />anomaly at site AVF-15 will continue to be monitored in 2005. <br />2004_2ndHalfSubReport.doc Page 3 of 3 03/01/05 <br />