2017-04-11_REPORT - M1977424 (2)

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Logan Wash Mine Annual Report March 28th, 2016 — March 27th, 2017 Permit No. M-1977-424 1.0 Introduction This annual report has been prepared in accordance with regulations of the State of Colorado Division of Reclamation, Mining and Safety (DRMS) and the regulations promulgated by the Colorado Mined Land Reclamation Board. The information presented in this report pertains to the period March 28, 2016 to March 27, 2017 (reporting period). Projected reclamation activities for the following year are also presented. The Logan Wash Mine, located approximately 12 miles northeast of De Beque, Colorado, is managed by Glenn Springs Holdings, Inc. (GSHI) for Occidental Oil Shale, Inc. (OOSI). The main mine portals are located in Section 25, Township 7 South, Range 97 West. A general site location map for the Logan Wash Mine is presented in Figure 1. This annual report summarizes the reclamation status of the Logan Wash Mine. The Logan Wash Mine is currently under closure and reclamation status. During the reporting period reclamation maintenance work was conducted on the OOSI property. GSHI anticipates reclamation maintenance activities to continue in 2017. In 2006, at the request of DRMS, OOSI prepared and submitted Amendment No. 1: Retort Water Pipeline and Evaporation Pond. Although these structures were constructed in 1984 after receiving permits from the U.S. Bureau of Land Management (BLM) and Garfield County, for unknown reasons the structures were not incorporated into the existing mine permit. On August 5`h, 2008, DRMS approved the amendment and granted OOSI a 10 -year extension of the reclamation period for Logan Wash Mine. This extension will allow for the potential further attenuation of solutes in the retort discharge water, and allow OOSI to evaluate viable alternatives for final mine closure. The remainder of this annual report is organized as follows: • Section 2: Disturbed Acreage Status • Section 3: Monitoring Activities in 2016 • Section 4: Reclamation Activities in 2016 • Section 5: Maintenance Activities in 2016 • Section 6: Anticipated Reclamation in the Year 2017 • Section 7: Anticipated Disturbance in the Year 2017 • Section 8: Threatened Species Designation Please refer to Figure 1, the Logan Wash Mine Location Map, Figure 2, Logan Wash Mine Facilities, and Figure 3, the Logan Wash Mine Monitoring Wells for features discussed in this report. This report also refers to Exhibit E, the original reclamation plan, and Exhibit F, the reclamation map. Please see Exhibit E in the permit document files; a copy of Exhibit F is attached. In the report text, all acreage amounts have been rounded to the nearest tenth of an acre. 2.0 Disturbed Acreage Status During the reporting period no additional acreage was disturbed. According to Exhibit E of the Reclamation Plan (198 1) for Logan Wash Mine, 134.7 acres were approved for disturbance Western Water & Land, Inc.