2021-05-12_REVISION - M2012032 - Laserfiche WebLink

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_�A OURAV SILVER MINES 4.2.9 Effluent Treatment Facilities (40 CFR 112.8(c)(9)) The facilities stormwater is directed to the passive water treatment system at the main site. At the Atlas Tailing Storage Facility stormwater reports to a sediment settling ponds and due to the secondary containment provided,there are no effluent treatment facilities at the current time. 4.2.10 Visible Discharges (40 CFR 112.8(c)(10)) Any indication of leakage from any container or appurtenance including seams, gaskets, piping, pumps, valves, rivets or bolts will result in maintenance corrections conducted promptly. Spills of hydrocarbons or designated chemicals found within containment and diversion structures will be promptly removed and disposed of in accordance with the waste disposal described in Part 5 of this Plan. 4.2.11 Mobile and Portable Containers(40 CFR 112.8(c)(11)) Small hydrocarbon storage containers such as 55 gallon drums are stored in the the Materials Storage Conex (C-3),the Waste Storage Pad (C-4), the Loci Barn Underground (C-6), and the Underground Shop (C-7) on spill pallets. The Backup Generator (C-5) while mobile, will only operate at its current location and as needed during a power outage. 4.3 Transfer Operations, Pumping and In-Plant Processes (40 CFR 112.8(d)) Transfer operations at this facility include: • Transfer of reagents • Filling of the 1,000 gallon Unleaded Tank (C-1) • Filling of the 10,000 gallon Diesel Tank (C-1); and • Filling of mobile equipment. Buried piping related to hydrocarbon storage does not exist at this facility. All above ground piping and valves are inspected monthly which also includes appurtenances, expansion joints, valves, catch pans and pipeline supports. Observations are recorded during the monthly inspections. Spill Prevention Control and Countermeasure Plan 25 1 P a g e