2026 Geotechnical Investigations for the Del Puerto Canyon Reservoir Project (Notification of Lake or Streambed Alteration, No. EPIMS-STA-63696-R4)

The California Department of Fish and Wildlife, Region 4, has executed Lake and Streambed Alteration Agreement EPIMSSTA-63696-R4 with the Del Puerto Water District for the 2026 Geotechnical Investigations for the Del Puerto Canyon Reservoir Project. Located in Patterson, California, the project involves the construction of temporary low water stream crossings at six specific locations within Del Puerto Creek and its tributaries, with the provision for temporary water diversions if water is present. This project is categorized as a forecast with a posted date of September 21, 2026. According to a Notice of Exemption signed on August 4, 2026, the activities are categorically exempt from the California Environmental Quality Act pursuant to California Code of Regulations Title 14, sections 15304 and 15306. Primary points of contact for the agreement include General Manager Anthea Hansen of the Del Puerto Water District and Environmental Scientist Jackson Powell of the California Department of Fish and Wildlife.