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L' <br />The existing inclinometer casings can be used to install a string of in-place uniaxial <br />electrolytic inclinometer sensors suspended on a single cable. The sensors consist of <br />an electrolytic fluid contained in a finely manufactured, drawn bubble. Tilt of the sensor <br />results in a changed diameter of fluid within the bubble which causes the electrical <br />resistance across the bubble to vary proportionally with the deviation from horizontal. <br />The sensors are contained in a two meter long tube. These sensors are positioned <br />across the suspected zone or zones of movement. Changes in the inclination of the two <br />meter tubes indicate probable ground movement across the slide plane. The amount of <br />displacement is calculated by finding the difference between the current inclination <br />reading and the initial reading and the current reading and the previous reading and <br />then converting the result to a lateral distance by using the change in angle and the <br />length of the tube containing the sensor. The sensors are connected to a data logger <br />that reads the sensors at specified times. The data logger is connected to a <br />communication package that sends the data to a web based software package that <br />processes the data and can trigger an alarm when it detects a change, or rate of <br />change that exceeds a preset value. <br />SITE SPECIFIC MONITORING PLAN <br />At this site, the in-place inclinometers would be used in borings #3, on the upper north <br />slide area and #7, in the middle of the slide area. The sensors would be connected <br />through a multiplexer to the data logger, which would be positioned at boring #3. The <br />data logger will be set to read the inclinometers every 12 hours at 0500 hours and again <br />at 1700 hours. These readings will be transmitted via cell phone modem at the site to <br />the Argus Web-Based Monitoring System software. The data (logger and communication <br />package will be powered by a 12-volt deep cycle marine battery that is recharged by a <br />solar panel. All instruments including the solar panel will be enclosed in a protective <br />housing. If cell phone coverage is not available directly from boring #3 at the site, a