Geotech Drilling for Bradley CAPM (05-1k880)


SCH Number
Public Agency
California Department of Transportation, District 5 (DOT)
Document Title
Geotech Drilling for Bradley CAPM (05-1k880)
Document Type
NOE - Notice of Exemption
Document Description
This CE/CE was completed for 14 geotechnical borings that will be completed prior to the finalization of design for the Bradley CAPM project. The borings will be completed within the State Right-of-Way to a maximum depth of up to 100 feet. The diameter of the boreholes will be between 4 and 6 inches. Sampling will include Standard Penetration Tests (SPT) at a minimum of 5-foot intervals until bedrock is encountered. Depending on the subsurface stratification, one or two samples per borehole will be collected in soft clay layers for strength and consolidation testing. If bedrock is encountered, the wire-line core drilling procedure will continue to the maximum depth of the boring. Borings at this site will be backfilled after the drilling and sampling has been completed. The work is anticipated to be completed during the day over the course of 4 weeks. Precautions during drilling will be employed to mitigate any possible equipment leaks or drilling fluid spillage. These will include plastic tarps, absorption mats, and jute wattles. Also, potential leakage at the casing-mud line contact will be monitored. If leakage is detected, the wet drilling will be stopped, and casing will be installed to a depth at which leakage has stopped (adequately sealed off). The contained drill fluids generated during drilling will be pumped into 55-gallon steel drums and transported to Caltrans’ facility for processing.

Contact Information

Dianna Beck
Agency Name
Job Title
Senior Environmental Planner
Contact Types
Lead/Public Agency / Project Applicant / Parties Undertaking Project


None, unincorporated area near Bradley
Cross Streets
Bradley Rd., Jolon Rd.,
State Highways
Highway 101

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Class 4; Section 15304- Minor Alterations to Land
Reasons for Exemption
The planned work has been reviewed and it would have no significant environmental impacts. Applicable Caltrans Standard Specifications will be implemented.
County Clerk


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