-
State
CGS Mineral Hazards: Indoor Radon Potential Study Areas
State of California —
Study area boundaries for indoor radon potential conducted by the California Geological Survey. -
State
CGS Mineral Hazards: Indoor Radon Potential Zones
State of California —
This digital layer contains polygons (vector format) of portions of California designated as having high, moderate, low, or unknown potential for homes to exceed the...