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San Luis TSF David Carino <br /> 2024 Annual Dam Safety Inspection Battle Mountain Resources,Inc. <br /> left(south side) of the drop structure is progressing (Figure 2), and requires repair and mitigation <br /> similar to what was done on the right side. <br /> Seepage Underdrain Collection System: Continue the jetting and video inspection program to <br /> ensure the drain pipes do not become clogged. <br /> Choked Runoff Diversion Ditch Culvert: The HDPE-lined toe runoff channel culvert <br /> immediately south of underdrain outfall pipe was reported in the 2023 inspection report to be <br /> nearly completely choked. It was noted during the 2024 inspection that the low berm and culvert <br /> at this location comprise a temporary access feature for repairs to the toe drain area conducted over <br /> a decade ago, and will be removed in 2024. <br /> Instrumentation: Vibrating wire (VWP) and standpipe piezometers should be re-surveyed to <br /> provide elevations of the top of the internal casing and also the ground surface at each piezometer <br /> location. <br /> CONCLUSIONS <br /> Based on the observations described above, the overall surficial condition of the dam is judged to <br /> be `Conditionally Satisfactory' at this time. Please don't hesitate to call should you have questions <br /> or concerns regarding this inspection report. <br /> Respectfully Submitted, <br /> Engineerin1 tics, Inc. <br /> �9,PD .llc4 <br /> �Idc,O�• PQ7g ai'YS, <br /> � '��1 t�0l <br /> i : 33319 : 5 <br /> 41II .: /moi <br /> 1��4 O�`'w, l/ �' j <br /> ' ;`/,NAl. <br /> Mark S. Abshire, '. . <br /> Senior Geotechnical Engineer <br /> 3 Engineering Analytics,Inc. <br />