The County shall not allow habitable structures or individual sewage disposal systems to be placed on or in expansive soils unless suitable and appropriate safeguards are incorporated into the project design to prevent adverse effects.
RDR
HAZ-4.14 Development in Seiche Hazard Areas
The County shall not allow development in potential seiche hazard areas unless a geotechnical engineering investigation is performed and appropriate and sufficient safeguards, based on this investigation, are incorporated into the project design.
HAZ-4.15 Subsidence Hazard – Extraction Wells
The County shall require that potential ground surface subsidence be evaluated prior to approval of new oil, gas, water or other extraction well drilling permits and appropriate and sufficient safeguards are incorporated into the project design and facility operation.
HAZ-4.16 Subsidence and Hydroconsolidation Hazard – Structural Design
Structural design of buildings and other structures shall recognize the potential for subsidence and hydroconsolidation and provide mitigation recommendations for structures that may be affected.
HAZ-4.17 Earthquake Fault Zone Maps or Earthquake Zones of Required Investigation
The County should, where feasible, require that land in Earthquake Fault Zones and potentially Holocene active fault areas be designated Open Space or Agriculture on the General Land Use Diagram.
HAZ-4.18 Preparation of Plans in Seiche Hazard Areas
The County shall consider Seiche Hazard Areas during the preparation of regional and area plans and special studies and be used to guide future investigations of the hazard.