Water Resources, Department of
(California Department of Water Resources)
P2426 Evaluation of Hard Structures
NOE - Notice of Exemption
Project Geology will supervise contractor (Gregg Drilling) in rotary drilling, rock coring and downhole suspension seismic (P-and S-Wave) velocity logging to test the integrity of dam-related structures at Quail Lake, Pyramid Dam, Cedar Springs Dam and Devil's Canyon. Project geology proposed 12 exploration drill holes, including 8 rock core holes and 4 rotary wash holes, to address the Vs 30 data requested. Each rock core boring may take approximately 3 to 11 days to complete. Each drill hole will be filled with grout and re-paved with its' original material.
The State Water Project provides significant and important services to many Californians. This project is exempt because it involves routine maintenance activities. This project will not result in impacts to special status species or habitat. Because this activity can be implemented without any significant environmental impacts, the categorical Exemption Class 1 will be used for CEQA compliance.