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a Iluddleston•Bef <br />.a "''A" <br />3.6 Discussion — Uncompacted Gob <br />As indicated above, the results of the analyses yielded a factor -of- safety for the <br />uncompacted gob of just above 1.0. In general, this suggests that the face of the <br />uncompacted gob is marginally stable. However, as indicated in the results included in <br />Appendix A, the low factor -of- safety applies to a shallow, surface failure rather than a <br />deeper failure. This suggests that sloughing along the face of the uncompacted gob may <br />occur from time to time. However, based upon the results of the other analyses, any <br />surficial failure in the uncompacted gob is not anticipated to impact the stability of gob <br />pile #2 as a whole. <br />3.7 Conclusions <br />As indicated previously, the analyses indicated that the placement of wet gob <br />above gob pile #2 will not adversely impact the stability of gob pile #2. However, as <br />indicated previously, changes in the pore water pressures will affect the results of the <br />analyses. <br />Also as indicated previously, HBET does not believe that a free water surface <br />exists within the gob. In addition, based upon the available data, significant increases in <br />the pore pressures in VWP -05, VWP -09, and VWP -10 are unlikely. The monitoring data <br />also suggests that the pore pressures in VWP -08 are generally decreasing. While <br />increases in the pore pressures in VWP -06 are possible, if not likely, as additional gob is <br />added in the vicinity of this instrument, the analyses indicates that increases in the pore <br />pressures in VWP -06 will not adversely impact the stability of gob pile #2. However, <br />continued monitoring of the piezometers is recommended to identify any significant <br />changes in the pore water pressures which may impact the stability of gob pile #2. <br />4.0 GENERAL <br />This conclusions, results, etc. in this report is based upon the information in the <br />referenced documents, current analyses, and on our experience with similar projects. The <br />conclusions are valid only for the subject project. <br />Huddleston -Berry Engineering and Testing, LLC is pleased to be of service to <br />your project. Please contact us if you have any questions or comments regarding the <br />contents of this report. <br />Respectfully Submitted: <br />Huddleston-Beriy Engineering and Testing, LL <br />Michael A. Berry, P.E. <br />Vice President of Engineering <br />X t2008 ALL PROJECTS'.00789 - JE Stovet Associates Ine`00489-0003 Bossie \linet200 - Geo104 MOM3 R032114RI do, 6 <br />