2018-03-02_REPORT - C1981019 (2)

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Colowyo Coal Company 2017 Annual Reclamation and Hydrology Report Figure 3-4 — South Taylor Fill (West Taylor) Ouarterly Inspection Report Continued INSPECTION REPORT •- SOUTH TAYLOR FILL (Including Both the East Taylor and West Taylor Fill Segments) INDICATE QUARTER 1ST7 2ND X 3RD o 4TH 7 2017 YEAR *ALL QUARTERS NEED TO BE CERTIFIED* THE FOLLOWING ITEMS ARE TO BE INSPECTED AND REPORTED AS NOTED: 1) Has any significant change been noted In the survey monuments on the fill? No NA Yes If ves. explain Date of Survey: NA Reviewed By: Lee Sampson, Kurt Blunt 2) Has any significant change been noted In the water level found in the fill monitoring well? No X Yes Measured Level 223 2 feet If yes, explain: Date of Measurement: 6-27-17 Measured By: Lee Sampson, Kurt Blunt 3) Has there been any evidence of surficial slope failure on the face of the fill? No X Yes If yes, explain: Date of P.E. Inspection: 6-27-17 Inspected By: Lee Sampson, Kurt Blunt 4) Has there been any formation of springs or seeps on the face of the fill? No X Yes If yes, explain: Date of Inspection: 6-27-17 Inspected By: Lee Sampson, Kurt Blunt I am a Registered Professional Engineer in the State of Colorado Being familiar with the Colowyo operation, and relying on the information provided to me by Colowyo Personnel, the West and East Taylor Fill are observed to be stable, at the time of inspection. Construction activities related to the West and East Taylor Fill are in conformance, to the best of my knowledge and experience, as specified in the Introductory pages and the associated report found in Volume 13, Exhibit 21, Item 1, and other applicable requirements of the approved permit documents, a portion of CORMS Permit C-1981-019. Page 41