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2008-11-24_PERMIT FILE - C1996083 (20)
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2008-11-24_PERMIT FILE - C1996083 (20)
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Last modified
8/24/2016 3:38:13 PM
Creation date
2/24/2009 9:51:41 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1996083
IBM Index Class Name
Permit File
Doc Date
11/24/2008
Doc Name
Geotechnical Monitoring Plan, YEH & Assoc, 3/26/2008
Section_Exhibit Name
Volume IIIA Exhibit 20 Bruce Park Landslide
Media Type
D
Archive
No
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<br />spread spectrum radio transmitter will be installed at the site to send data to a receiver <br />in an area of cell phone reception and then transmitted by cell phone to the internet <br />based software. <br />The web based software automatically processes readings, checks for alarms, displays <br />graphs, generates reports and can be accessed anywhere that an approved user can <br />log on to the internet. Alarms appear on screen and are triggered by a predetermined <br />rate of change or by system failure or the absence of communication. Reaction to an <br />alarm will vary depending upon the type of alarm and on the will also vary seasonally <br />and depending upon the reservoir level at that time. Actions precipitated by an alarm <br />are described in detail as part of the response plan. We propose that the trigger levels <br />for the alarm be set to provide an alert if the upper end of any two meter tube moves <br />more than 0.1 inches relative to the bottom of that tube in any 12 hour period. The <br />movement must be in the logically correct direction. The response to this level one alert <br />will be to check the next 12 hour reading set remotely for continued movement. If there <br />is credible evidence of significant movement, the mine will send a qualified person to <br />the site to make visual observations and to remove the in-place inclinometer equipment <br />and perform a set of manual readings by insertion of the standard probe. If the <br />movement is confirmed to be real and is in excess of 0.2 inches per 12 hours the <br />individual will report the information in accordance with the approved response plan and <br />will remain on site and take hourly readings until the movement has decreased to less <br />than .05 inches per 12 hours. <br />Alarm notifications will be sent out by email and text messaging. In addition, the system <br />will perform periodic communication checks and will provide notification in the event of <br />system or communication failure in accordance with the response plan. <br />.J
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