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Bear Creek • SAE-B The area protected by this SAE is the Bear Creek portal area. The only facilities remaining in the area are some concrete foundations and a partially dismantled substation. Run-off from the area will be contained by a berm. A silt fence is installed at the low point in the yard. Run-off from the yard will either be contained by the berm or will be filtered by the silt fence. A pipe with a silt fence at its inlet drains water from the bermed area. The sample point will be the discharge end of the pipe. SAE-9 Reserved. Lower Hubbard Creek SAE-10 The area protected by this SAE is the lower Hubbard Creek ventilation facility. The only facilities remaining are concrete foundations and two concrete portals. Run-off from the yard will be contained by a berm. A silt fence is installed at the low point in the yard. Run-off from the yard will either be contained by the berm or will be filtered by the silt fence. A pipe with a silt fence at its inlet drains water from the bermed area. The sample point will be the discharge end of the pipe. ~'~ SAE-11 The area protected by this SAE is the lower Hubbard Creek hoist house pad. The only facility remaining is the concrete foundation. Run-off from the pad will be contained by a berm. A silt fence is installed at the low point on the pad. Run-off from the pad will either be contained by the berm or will be filtered by the silt fence. A pipe with a silt fence at its inlet drains water from the bermed area. The sample point will be the discharge end of the pipe. Sanborn Creek Portals See discussion beginning on page B-86 and sections 2.05.3(4) and 2.05.6(3)(b)(iv). Small Area Exemption Demonstrations Upper Hubbard Creek Pond Outslope The Upper Hubbard Creek sediment pond outslope was modeled using the computer program Sedcad+ Versio n 3. The modeling was performed to determine if run - • B-141