California Stream Gage Improvement Program: Stony Creek Stream Gage Project

The California Department of Water Resources has entered into a contract with the Corning Sub-basin Groundwater Sustainability Agency for the Stony Creek Stream Gage Project under the California Stream Gage Improvement Program. The project involves the installation of a single stream gage on Glenn Colusa Irrigation District property near Hamilton City, specifically where the GCID Canal siphons under Stony Creek in Glenn County. The primary objective is to monitor hydrologic conditions during storm events and provide real-time hydrological data to the public. The installation will be mounted to a mast post and consists of an image velocimetry camera, a solar panel, a staff gage, and a remote terminal unit housed in a steel enclosure containing a battery, radio equipment, a data logger, and a bubbler unit, all connected to the streambed via conduit. The project is classified under NAICS code 237990 and is designated as a forecast with a notice date of July 28, 2026. Because the work involves minor excavation on previously disturbed land with no anticipated vegetation removal, it qualifies for CEQA categorical exemptions 15304 for minor alterations to land and 15306 for information collection. Key personnel for the project include Environmental Scientist Harmony Gugino and Program Manager Lisa Hunter.