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September 15, 2020 C-1981-025/North Thompson Creek Mine RDZ <br />Inspection Topic Summary <br />NOTE: Y=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable <br />Y - Air Resource Protection <br />R - Availability of Records <br />NA - Backfill & Grading <br />NA - Excess Spoil and Dev. Waste <br />NA - Explosives <br />R - Fish & Wildlife <br />R - Hydrologic Balance <br />Y - Gen. Compliance With Mine Plan <br />N - Other <br />NA - Processing Waste <br />Y - Roads <br />Y - Reclamation Success <br />Y - Revegetation <br />Y - Subsidence <br />Y - Slides and Other Damage <br />NA - Support Facilities On -site <br />R - Signs and Markers <br />NA - Support Facilities Not On -site <br />NA - Special Categories Of Mining <br />NA - Topsoil <br />COMMENTS <br />A complete inspection was conducted by Rob Zuber of DRMS on September 15, 2020. This was an oversight <br />inspection with Dan MacKinnon of OSMRE. The weather was hot, and the ground was dry. No MINREC, Inc. <br />representative was present. A follow-up visit to the site was made by Rob Zuber on September 17th to look at the <br />repaired ditch (see HYDROLOGY section of this report). <br />No cattle were seen onsite, but cow feces were seen in many places. <br />The landowner's pump system at Pond T-2 was not operating at the time of the inspection. <br />AVAILABILITY OF RECORDS — Rule 5.02.4(1): <br />During a check at the Garfield County building in Glenwood Springs, several reports for the North <br />Thompson Creek Mine were not found (for example, the 2019 ARR and the 2020 reports for pond <br />inspections). A list of records is provided in this report. <br />FISH and WILDLIFE — Rule 4.18: <br />Eight ducks were seen in the Long Pond. <br />HYDROLOGIC BALANCE - Rule 4.05 <br />Drainage Control 4.05.1, 4.05.2, 4.05.3; Siltation Structures 4.05.5, 4.05.6; Discharge Structures 4.05.7, 4.05.10; <br />Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring 4.05.13; <br />Drainage — Acid and Toxic Materials 4.05.8; Impoundments 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18: <br />The pipeline across the creek (attached to a bridge) that carries mine water to the treatment system was intact. <br />However, one of the cable supports for the pipe has come undone, and this should be fixed to keep the pipe <br />stable. <br />Number of Partial Inspection this Fiscal Year: 0 <br />Number of Complete Inspections this Fiscal Year: 1 <br />Page 2 of 7 <br />