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• diameter inclinometer casing would have extended their usefrd life. Figure 4 shows a relationship between <br />piezometric levels is the slide mass and strain rate. The re]alionship may indicate tLnshold piezometric levels <br />above which significant slide activity is expected to occur. Piewmeter measmemeots may provide sufficient <br />iaformation m identify the-critical tip peaiods when further sfide movement is probable. Consequenfly, <br />rePincing 8re inctino~~rs may not be necessary. Commued mnnitormg through the 1995 season of operation <br />is expected m 5uther refine the coaelarian. For the purpose of continued use of the reservoir and safe <br />pezf~ance, the objective of coatim>ed monitoring is to idemify piewmehic levels aE which critical strain rates <br />occur- <br />The movements of survey ~rmmems couelated weII with inclinometer resaris. However, survey points alone <br />world ~t have been a practical alternative to ibelinometers because of the oample~ty of Sre Ltyout necessary <br />to adrieve the regvned level of accuracy and lregnency of Stable control points Lad to be <br />located a considerabL; distance from the dam and Lnxlslide m ensure reliabr7ity. The large distance from the <br />cool poiuLs restilted in more complex and greater risk fnr eaor The more complex the survey <br />system, the more expensive measmemems become, a principle consideration in the investigation Disturbances <br />of the moanmwis from frost or livestock also effect the relialnlity ofzesulLs. <br /> <br /> <br />