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August 26, 2020 C-2010-089/New Horizon North Mine JHB <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 />N - Availability of Records <br />R - Backfill & Grading <br />NA - Excess Spoil and Dev. Waste <br />NA - Explosives <br />N - Fish & Wildlife <br />R - Hydrologic Balance <br />Y - Gen. Compliance With Mine Plan <br />N - Other <br />NA - Processing Waste <br />N -Roads <br />Y - Reclamation Success <br />R - Revegetation <br />NA - Subsidence <br />Y - Slides and Other Damage <br />R - Support Facilities On-site <br />Y -Signs and Markers <br />NA - Support Facilities Not On-site <br />N - Special Categories Of Mining <br />Y -Topsoil <br />COMMENTS <br />This was a partial inspection conducted by Janet Binns of CDRMS Frank was in the Benson East field (no longer <br />a part of the neighboring permit) supervising topsoil placement. .The weather was clear and dry. Much of the <br />smoke in the air from wildfires elsewhere in the state had dispersed, though the air was stil slightly hazy. Frank <br />met the inspector on site partway through the inspection. COVID-19 protocols were followed. <br />BACKFILL and GRADING — Rule 4.14 <br />Contemporaneous Reclamation 4.14.1; Approximate Original Contour 4.14.2; Stabilization of Rills and Gullies <br />4.14.6: <br />Over time, and after irrigation, the irrigated pasture is experiencing settling. For the most part, this has not <br />resulted in low areas that pond in the field. The inspector came across a low spot on the west side of the irrigated <br />pasture that was pooling water. This low spot is on the east side of Pond 002 Overburden stockpile. The <br />estimated size is about 15 foot by 20 foot. The retained water is only a few inches deep. (Photo 8). Once the <br />irrigated pasture is harvested and dried out, this low spot should be graded (or filled with material) to keep this <br />spot from pooling in the future. Until then, this pooled area should be breached to allow the trapped water to flow <br />towards Pond 002. Walking north from the pooled area, the inspector located down cutting of the replaced topsoil. <br />(Photo 9) Assuring the runoff can drain freely may alleviate gully formation in this area. <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; Ground Water Monitoring 4.05.13; Surface Water Monitoring 4.05.13; Drainage — Acid and <br />Toxic Materials 4.05.8; Impoundments 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18: <br />Tail water runoff from the irrigated pasture (Garvey field) drains predominately to the south. This tail - <br />water has concentrated and previously created rilling across the regraded facilities area at the south end of the <br />permit. The operator had installed heavy duty silt fence in sections where the tail -water ran off the topsoiled field <br />in July. These silt fences have held up well over the last month and had proven very effective in settling out <br />sediment. (photo 5) A small segment of the silt fencing has undercut. (photos 1 & 2) The ends of the silt fencing <br />is well anchored into the slope and there was no side -cutting around the silt fencing. The operator said they had <br />plans to add fencing to the segments that had undercut. <br />Number of Partial Inspection this Fiscal Year: 1 <br />Number of Complete Inspections this Fiscal Year: 1 <br />Page 2 of 7 <br />