Seismic refraction survey


SCH Number
Public Agency
California Department of Transportation, District 2
Document Title
Seismic refraction survey
Document Type
NOE - Notice of Exemption

Document Description
Caltrans plans to conduct a seismic refraction survey within the project limits. Foot access will be required. A line of geophones will be placed along the ground surface parallel to the proposed cut hinge point. The geophones will be inserted into the ground with a small spike and a gat bar will be driven into the ground at either end of the line at varied spacing along the line. The gat bar will create a hole into which a metal pipe will be inserted and a shotgun shell detonated. After the completion of the survey, the site will be restored to its pre-survey condition (i.e., all material such as geophones and pipe will be removed and the holes back filled with soil).

Contact Information
Barbara Lauger
Department of Transportation, District 2
Lead/Public Agency
P.O. Box 496073
Redding, CA 96049-6073

Phone : (530) 225-3515



Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
sec 15306, class 6
Reasons for Exemption
This project will not result in any significant impacts to the environment.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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