Laserfiche WebLink
CWDA No. 2 s" . <br />#01349-0001 Iluddteswri -Ben• <br />09/(1 �/14 rr;'- -.,: 14•::.:•, f1C <br />Discussion <br />As indicated in the referenced report, the stability of CWDA No. 2 is sensitive to increases in <br />pore pressures in VWP -08. An increase in the pore pressure of 7 psi in VWP -08 would result in <br />a reduction of the Factor of Safety to below 1.5. <br />The monitoring data show a moderate increase in pore pressures in VWP -06. This is consistent <br />with the fact that this instrument is closest to the active tilling area. <br />As indicated in the monitoring data, very slight increases in pore pressures were reported in <br />VWP -05, VWP -08, VWP -09, and VWP -10. However, the increases were very small and may <br />not reflect an actual upward trend in pore pressures at these instruments. <br />In general, based upon the results of the recent pore pressure monitoring data, HBET does not <br />believe that there is any reduction in the stability of CWDA No. 2. In addition, based upon the <br />errors previously identified by BGI resulting in lower pore pressures in VWP -08, VWP -09, and <br />VWP -10, HBET does not believe that ongoing monthly monitoring is warranted. Quarterly <br />monitoring is recommended. <br />We are pleased to be of service to your project. Please contact us if you have any questions or <br />comments regarding the contents of this report. <br />Respectfully Submitted: <br />Huddlestonr134 y Engineering and Testing, LLC <br />3 <br />•�e•rsfNa• <br />`yp'i6NAt <br />Michael A. Berry, P.E. <br />Vice President of Engineering <br />X:12003 ALL PROJECTS'004$9 - JE Stover Associates Inc`.00439- 0003 BoNsie N in6200 - Ge&Gob 21.00489-0003 LR081214.doe 2 <br />