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January 16, 2020 C-1996-084/Lorencito Canyon Mine RDZ <br /> Inspection Topic Summary <br /> NOTE: Y=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable <br /> NA -Air Resource Protection R -Roads <br /> N -Availability of Records R -Reclamation Success <br /> NA -Backfill&Grading N -Revegetation <br /> R -Excess Spoil and Dev. Waste NA - Subsidence <br /> NA -Explosives Y - Slides and Other Damage <br /> Y -Fish&Wildlife NA - Support Facilities On-site <br /> R -Hydrologic Balance N - Signs and Markers <br /> Y -Gen. Compliance With Mine Plan Y - Support Facilities Not On-site <br /> N -Other N - Special Categories Of Mining <br /> NA -Processing Waste N -Topsoil <br /> COMMENTS <br /> A partial inspection was conducted by DJ Cunningham, Jared Ebert, and Rob Zuber of DRMS on January 16, <br /> 2020. Nick Mason and Vince Massarotti of NECC were present for the inspection. <br /> The weather was cool and cloudy, and the ground was somewhat muddy from recent snowmelt. <br /> EXCESS SPOIL and DEVELOPMENT WASTE—Rule 4.09 <br /> Placement; Drainage Control; Surface Stabilization: <br /> Fills 7, 8, and 9 were inspected.No gullies or large rills were seen. The vegetation on all three fills looks <br /> good despite being dormant for the winter. <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 /> Ponds 6 and 8 were inspected. They were not discharging and held almost no water.No problems were <br /> identified with the embankments or spillways. Vince Massarotti has cleaned up the western portion of Pond 6 <br /> where rock was removed in the past and used for riprap. This structure requires a revision(a Minor Revision <br /> should suffice)with a revised design drawing to show that it is larger than before. <br /> No problems were identified with ditches or culverts, although these structures were predominantly viewed from <br /> the roads. <br /> Number of Partial Inspection this Fiscal Year: 5 <br /> Number of Complete Inspections this Fiscal Year: 2 <br /> Page 2 of 7 <br />