Description: This zone is an official regulatory zone delineating areas within which permits to construct buildings for human occupancy must be conditioned onsite-specific evaluations & mitigation for liquefaction hazard of foundation materials according to state law (Public Resources Code Section 2690 et seq.).
Label: Liquefaction Zone Area Description: Areas where historic occurrence of liquefaction, or local geological, geotechnical and groundwater conditions indicate a potential for permanent ground displacements such that mitigation as defined in Public Resources Code Section 2693(c) would be required.
Description: This zone is an official regulatory zone delineating areas within which permits to construct buildings for human occupancy must be conditioned onsite-specific evaluations & mitigation for liquefaction hazard of foundation materials according to state law (Public Resources Code Section 2690 et seq.).
Label: Liquefaction Zone Area (margin uncertain) Description: Areas where historic occurrence of liquefaction, or local geological, geotechnical and groundwater conditions indicate a potential for permanent ground displacements such that mitigation as defined in Public Resources Code Section 2693(c) would be required.
Label: Overlap Areas Description: Areas that lie within zones of required investigation for both liquefaction and earthquake-induced landslides, which indicate a potential for permanent ground displacements such that mitigation as defined in Public Resources Code Section 2693(c) would be required.
Label: Unmapped Areas Description: Areas that have not been evaluated for liquefaction or earthquake-induced landslide hazards by the California Geological Survey.