Sand Boil
A “Sand Boil” is a cone-shaped deposit of sand that is formed during an earthquake. A Sand Boil occurs when subsurface sand layers liquefy and are then blown to the surface through cracks.
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Epicenter
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Extrusive Rocks
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Unobstructed Opening in Methane Mitigation
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Leaking Underground Storage Tank (LUST)
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Vapor Intrusion
Vapor Intrusion Vapor Intrusion occurs when harmful soil contamination changes phase from liquid to vapor underground and moves upward through geologic layers and building foundations, accumulating within indoor air.
