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640 White Avenue <br /> Grand Junction, Colorado 81501 <br /> Phone: 970-255-8005 <br /> Fax: 970-255-6818 <br /> Info@huddlestonberry.com <br /> <br /> <br /> January 8, 2018 <br /> Project#01349-0001 <br /> <br />Bowie Resources, LLC <br />43659 Bowie Road <br />Paonia, Colorado 81428 <br /> <br />Attention: Mr. Bill Bear <br /> <br />Subject: Summary of Instrumentation Monitoring <br /> 4th Quarter 2017 <br /> Bowie Coal Waste Disposal Area No. 2 <br /> Paonia, Colorado <br /> <br />Reference: Summary of Instrumentation Monitoring, 3rd Quarter 2017, Bowie Coal Waste <br />Disposal Area No. 2, Paonia, Colorado by Huddleston-Berry Engineering & <br />Testing, LLC for Bowie Resources, LLC, October 11, 2017. <br /> <br />Stability Evaluation, Technical Revision #85, Gob Pile #2 Drying Area, Bowie <br />No. 2 Mine by Huddleston-Berry Engineering & Testing, LLC for Bowie <br />Resources, LLC, June 3, 2014. <br /> <br />Dear Mr. Bear, <br /> <br />At the request of the Colorado Division of Reclamation, Mining and Safety (DRMS), <br />Huddleston-Berry Engineering & Testing, LLC (HBET) prepared this letter regarding quarterly <br />monitoring of vibrating wire piezometers and inclinometers at Coal Waste Disposal Area No. 2 <br />(CWDA No. 2) at the Bowie mine near Paonia, Colorado. The intent of the monitoring was to <br />detect significant changes in the pore water pressures or significant displacements within the coal <br />waste which may impact the stability of the waste pile. <br />Inclinometers <br />In 2005, three inclinometers, designated BG05-04, BG05-05, and BG05-07, were installed at <br />CWDA No. 2 through the coal refuse and into the native foundation soils. The inclinometers <br />have been monitored quarterly since August 2005. The 4th Quarter 2017 monitoring was <br />completed by DOWL on December 20th, 2017. The monitoring report prepared by DOWL <br />includes a site plan showing the locations of the inclinometers and cumulative displacement <br />curves relative to the baseline readings in 2005. Axis “A” reflects deformation with depth in the <br />direction of anticipated movement perpendicular to the face of the gob. Axis “B” reflects <br />deformation with depth parallel to the face of the gob.