Delta Seismic Installation


SCH Number
Public Agency
California Department of Water Resources (DWR)
Document Title
Delta Seismic Installation
Document Type
NOE - Notice of Exemption
Document Description
The projects objective is to better understand how soft organic soils in the Delta will perform during earthquake shaking using a cone penetration drill rig, Multi-Channel Analysis of Surface Waves, and Horizontal to Vertical Spectral Ratio tests.

Contact Information

Megan Brotherton
Agency Name
Department of Water Resources
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency / Project Applicant


Brentwood, Stockton
Contra Costa, San Joaquin
Northern California
Other Location Info
Please see attached NOE document for specific location information

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Information Collection Class 6, Section 15306, 14CCR
Reasons for Exemption
Class 6 exempts actions for data collection and resource evaluation which do no result in significant impacts to an environmental resource. The purpose of the project is to collect valuable data for the safety of levees/infrastructure during earthquakes. The temporarily impacted area will be approx. 4'x4'. DWR has evaluated cultural and biological resources and has determined the project will not result in significant impacts.


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