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Instrumentation Report <br />Inclinometers are installed on the lowermost bench of Gob Pile #2; measurements are made quarterly. <br />The results for this quarter indicate no significant movement has occurred. <br />Vibrating Wire Piezometers (VWPs) are installed at Gob Pile #2 (5) and at Gob Pile #3 (also 5). The VWPs <br />were installed and are monitored on a regular basis by Buckhorn Geotech (now by DOWL). In a letter <br />dated April 10th, 2014, the Division directed BRL to increase the monitoring frequency from quarterly to <br />monthly. BRL committed to the increase in a letter dated April 11th, 2014. Monthly monitoring was <br />continued through Oct -2014, with an additional quarterly reading taken on Janurary 6th, 2015 <br />(representing the 4th Qtr). By Email on Feburary 10th, 2015, the Division approved BRL's reverting to once <br />per quarter through the 1St Quarter of 2015. VWP-06 showed a slight increase in pore pressure during <br />the 1st Qtr. The Division recommends that the Division will review the 2nd Quarter data, as soon as <br />it is available, and determine then whether BRL should return to monthly monitoring of VWP-06 and <br />-08. <br />If you have any questions feel free to contact me. (303) 866-3567 ext 8134 <br />Sincerely, <br />Jason Musick <br />Environmental Protection Specialist <br />by ov � 01." <br />555 Street Address, Room 555, Denver, CO 55555-5555 P 555.555.5555' <br />1876' <br />