2014-01-30_INSPECTION - C1981014

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January 29, 2014 C- 1981 - 014 /Southfield Mine RDZ Inspection Topic Summary NOTE: Y= Inspected N =Not Inspected R= Carmnents Noted V= Violation Issued NA =Not Applicable N - Air Resource Protection N - Availability of Records N - Backfill & Grading NA - Excess Spoil and Dev. Waste NA - Explosives N - Fish & Wildlife R - Hydrologic Balance N - Gen. Compliance With Mine Plan N -Other R - Processing Waste R - Roads R - Reclamation Success N - Revegetation R - Subsidence N - Slides and Other Damage R - Support Facilities On -site N -Signs and Markers R - Support Facilities Not On -site NA - Special Categories Of Mining R -Topsoil COMMENTS A partial inspection was conducted by Rob Zuber of DRMS on January 29, 2014. The weather was cool and clear. The ground was somewhat muddy (due to minor snowmelt) with approximately two inches of snow over most of the mine site. The loadout was dry. There was no EFCI representative present during the inspection at the mine site or the loadout. HYDROLOGIC BALANCE - Rule 4.05 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; Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring 4.05.13; Drainage — Acid and Toxic Materials 4.05.8; Impoundments 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18: The two ponds at the mine site, Pond 4 and Pond 5, were holding frozen water. Neither of these ponds was discharging. At the loadout, ponds L -1 and L -2 were dry at the time of the inspection. No major problems were found with embankments, flumes, or spillways. The Pond 5 and Pond L -1 primary spillways contain sediment at the downstream ends and should be monitored for further problems. The two culverts that are inlets into Pond 5 were inspected. The 24 -inch culvert ( 940 on Map 18 in the PAP) was free of problems and light could be seen through the pipe. The 30 -inch culvert ( #39 on Map 18) contains sediment at the downstream end. This will likely wash out and not cause a problem, but the situation should be monitored. In this latter culvert, no daylight is seen through the pipe, likely due to a bend in the pipe under the road. The Magpie Diversion Ditch was inspected along its entirety, and no problems were seen. The erosion control BMPs near the gravel parking lot in the portal area require maintenance as rills are beginning to form and undercut the wattles. The BMPs at the northwest corner of the truck tunnel are in good shape. At the RDA, no problems were seen with ditches or with the California Drain Pan at the northwest corner of the RDA. Number of Partial Inspection this Fiscal Year: 5 Number of Complete Inspections this Fiscal Year: 3 Page 2 of 7