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Hodgdon Meadows Maintenance Facility - Replace Failed Oil/Water Separator and Wash Rack
Yosemite National Park » Hodgdon Meadows Maintenance Facility - Replace Failed Oil/Water Separator and Wash Rack » Document List
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Remove and replace the existing concrete pad and most of the asphalt pavement between the concrete pad and existing outlet manhole.
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Clean and rehabilitate the existing grated inlet manhole in the middle of the wash rack pad. Inspect and repair the existing connections to the building floor drains as needed.
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Remove the existing sand trap/separator and access hatch, and install a dual chamber combined separator unit.
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A piping and pump system will be added to allow oil removal from the separator and transfer to a waste tank with spill containment installed inside the shop where it will be held for disposal by our fuel services vendor.
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Install two new access vaults and hatches over the separator.
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Reinstall the concrete wash rack pad and slope to drain into the system inlet grate.
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Replace the pavement around the wash rack pad and tie into the surrounding pavement. Replace any additional damaged pavement areas surrounding the building as needed.