GPS Monument


SCH Number
Public Agency
California Department of Parks and Recreation
Document Title
GPS Monument
Document Type
NOE - Notice of Exemption
Document Description
This project will provide for the installation of scientific research equipment at the Hollister Hills SVRA in the Renz buffer, which is closed to the public and OHV use. UNAVCO, Inc. is in charge of the network operations related to installation, operation, and maintenance of Global Positioning Systems (GPS) and Strainmeter instruments within the Plate Boundary Observatory (PBO). The PBO is part of the larger National Science Foundation EarthScope GPS Observatory. This observatory is one of the largest major networks of Research Facilities ever constructed and is of critical importance to understanding the interaction between the continental plates in the western United States. The goal of PBO is to install instrumentation to monitor ground shifts that occur leading up to, during, and after earthquakes. This proposal includes a 10-year renewable land access agreement to UNAVCO Inc. to install, operate, monitor, and maintain the GPS instruments. Installation includes one deep drill braced monument (DDBM) with a DC-battery/solar charged power source that will operate the GPS receiver, antenna, and data communications. These stations can operate self-sufficiently in almost any location, have a surface footprint of 10 ft. x 10 ft., and stand at a finished height of 6 ft. tall. Additionally, a detached enclosure pole would exist within 20-25 ft. of the GPS monument, and has solar panels and an equipment enclosure attached to it. Installation of the DDBM requires a small drilling rig and a 50 ft. diameter working space during construction. A small fence will be installed around the equipment to protect it from cattle that graze in the area. An informational sign will be attached to the fence.

Contact Information

Patty Forbes
Agency Name
California Department of Parks and Recreation
Contact Types
Lead/Public Agency


San Benito

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Sections 15303, 15305, 15306
Reasons for Exemption
The installation of the GPS monitoring station will be in an area closed to public access and will include small diameter subsurface drilling, minor trenching and installation of enclosure fencing. Installation will have no impact on any historic, cultural, or natural resources.

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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