San Antonio Dam Subsurface Investigation

Summary

SCH Number
2018058009
Lead Agency
Monterey County Water Resources Agency
Document Title
San Antonio Dam Subsurface Investigation
Document Type
NOE - Notice of Exemption
Received

Document Description
The subsurface investigation of San Antonio Dam is proposed in response to the California Division of Safety of Dams' requirement for an updated evaluation of the dam's stability to support the Interlake Tunnel and San Antonio Spillway Modification Project; the results of this investigation will inform the design of the larger project. The investigation involves geotechnical borings at four locations; all will be on the dam embankment and will not involve the lowering of san Antonio Reservoir water elevations, or temporary reductions in flow within San Antonio River and the Salinas River. The investigation would implement methods to avoid the discharge of boring fluids and excavated materials into San Antonio Reservoir or San Antonio river

Contact Information
David Chardavoyne
Monterey County Water Resources Agency
1441 Schilling Place
Salinas, CA 93901

(831) 755-4860

Location

Counties
Monterey
Waterways
San Antonio Dam

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
S: 15304
Reasons for Exemption
Minor alterations in the condition of land and vegetation, which do not involve removal of trees; specifically, the project involves minor temporary use of land with negligible or no permanent effects on the environment, and minor grading, trenching and backfilling where the surface will be restored.
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