18E.80.060 – Appendix B Geological Assessment – Landslide Hazard Geotechnical Evaluation
A. A Geotechnical evaluation shall include the following:
1. The first page of the document shall be labeled identifying the submittal as a "Landslide Hazard Geotechnical Evaluation."
2. The dates when the geological assessment was performed. The date when the verification document was prepared.
3. The parcel number(s) of the site.
4. Site address, if one has been assigned by the County.
5. A detailed description of the project (including the proposed land use) and a description of the area to be developed.
6. A description of the surface and subsurface geology, hydrology, soils, and vegetation at the site and a list of the landslide hazard area indicators, as set forth in PCC 18E.80.020 A., that were found on or in the vicinity of the site.
7. A summary of the results, conclusions, and recommendations resulting from the geological assessment of the landslide hazards on or in the vicinity of the site. This summary shall address all of the information required in PCC 18E.80.030 B.
8. An accurate site plan drawn at a scale of 1" = 20', 1" = 30', 1" = 50' (or other scale deemed appropriate by the Department) is required. The Department may require that the site plan information listed below be based on a field survey by a licensed surveyor. The site plan shall include:
a. The limits/location of the active landslide hazard area(s) set forth in PCC 18E.80.020 C.1.
b. The limits/location of the required landslide hazard buffer based upon the requirements set forth in PCC 18E.80.050 A.
c. The location of any existing and proposed structures, utilities, on-site septic systems, wells, and stormwater management facilities.
d. The full geographical limits of the proposed project area (area to be developed).
e. Dimension the closest distance between the identified active landslide hazard area boundary and the project area.
f. Existing topography on the site presented in 2-foot contours.
g. Property lines for the site.
h. North arrow and plan scale.
9. A paragraph that states the following specific language:
"The services described in this evaluation were prepared under the responsible charge of (Individual's Name). (Individual's Name) meets the qualifications contained in Title 18E, Section 18E.80.030 to prepare a landslide hazard geological assessment. (Individual's Name) understands the requirements of the current Landslide Hazard Area Chapter 18E.80 and the definitions of the applicable terms contained within Chapter 18.25. (Individual's Name) or someone under his/her responsible charge has performed a landslide hazard geological assessment, conducted a field investigation, and researched historic records on or in the vicinity of the above referenced site. In my opinion, the scope of services completed for this project is adequate to meet the requirements of the Department and it does not appear that an active landslide hazard area exists within 300 feet of the proposed project area."
10. The name, mailing address, and telephone number of geotechnical professional who performed the geological assessment and prepared the geotechnical evaluation document.
11. The name, mailing address, and telephone number of the property owner.
B. The geotechnical evaluation shall be prepared under the responsible charge of an appropriately licensed geotechnical professional(s) and be signed, sealed and dated by the geotechnical professional(s) and the format shall be pre-approved by the Department.
C. Geotechnical evaluation documents shall be in conformance with a format that is pre-approved by the Department.