§ 8178-4.2. If the available data indicates that a new development as proposed will not assure stability and structural integrity and minimize risks to life and property in areas of potential hazards, or will create or contribute significantly to erosion or geologic instability, then the County shall require the preparation of an engineering geology report at the applicant's expense. Such report shall be in accordance with all applicable provisions of this Article and of the Coastal Area Plan policies, and shall include feasible mitigation measures that will be used in the proposed development, as well as the following applicable information to satisfy the standards of Section 8178-4.1:  


Latest version.
  • (a)

    Blufftop and twenty (20) percent or Greater Slope Development. For these areas, the County may require the following information:

    (1)

    Cliff geometry and site topography, extending the surveying work beyond the site as needed to depict unusual geomorphic conditions that might affect the site;

    (2)

    Historic, current and foreseeable cliff erosion data, including an investigation of recorded land surveys and tax assessment records in addition to the use of historic maps and photographs, where available, and possible changes in shore configuration and sand transport;

    (3)

    Geologic conditions, including soils, sediment and rock types and characteristics, in addition to structural features, such as bedding, joints, and faults;

    (4)

    Evidence of past or potential landslide conditions, the implications of such conditions for the proposed development, and the potential effects of the development on landslide activity;

    (5)

    Impact of construction activity on the stability of the site and adjacent area;

    (6)

    Ground and surface water conditions and variations, including hydrologic changes caused by the development (i.e., introduction of sewage effluent and irrigation water to the ground water system; alterations in surface drainage);

    (7)

    Potential erodibility of site;

    (8)

    Effects of marine erosion on seacliffs;

    (9)

    Potential effects of seismic forces resulting from a maximum credible earthquake;

    (10)

    Any other factors that might affect slope stability.

    (b)

    Shoreline Protective Devices. See Section 8175-5.12.

(Ord. No. 4451, § 9, 12-11-2012)