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Item (structures Predicted impact <br />in this portion of in permit Observed impact Prediction accurate? <br />the NMD a lication <br /> No validation measurements were Yes. Previous subsidence <br /> Maximum 21 reported during this period. The monitoring has demonstrated <br /> degrees [page 2 angle of draw ranges between that subsidence predictions <br />Angle of draw of Exhibit 4e-3 17.0 and 19.5 degrees. As were conservative and <br /> anticipated, there was no provided acceptable <br /> in permit significant ponding due to descriptions of expected <br /> application]. subsidence during the report subsidence in areas for which <br /> eriod alon Fish Creek. there aze no structures. <br /> Continued undennining; no <br />Twentymile No off-site impact based on data from yes. <br />Sandstone impacts monitoring wells (in annual <br /> hydrolo y re orts). <br />UP Railroad <br />track. No track was <br />Monitoring undermined N/A Yes <br /> <br />within 300 feet <br />during the . <br />and 1500 feet reporting period. <br />beyond <br /> See page 2.05- <br /> 184.7 of the PAP <br /> and page 4 and 3 <br /> of Exhibit 7e-7. Four of the 52 pylons of the <br /> Vertical Archer-Hayden transmission line <br /> subsidence up to had settlement. None were over <br />Archer-Hayden 48 Inches (PAP) the 48 inches predicted. The most The predicted vertical <br />Electric and 4 feet w,as 3.9 foot or 47 inches 98% of subsidence was very accurate. <br /> <br />Transmission (exhibit) was <br />that predicted. Horizontal Horizontal movement and <br /> <br />Line predicted. Small <br />displacements were small. See the damage predictions were <br /> displacements in <br />Survey Data portion of the report. accurate. <br /> horizontal There was no debilitating <br /> directions were damage. <br /> predicted. No <br /> debilitating <br /> damage was <br /> redicted. <br />