RTI INFRASTRUCTURE, INC. EUREKA SUBSEA FIBER OPTIC CABLES PROJECT February 2021
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INITIAL STUDY/MITIGATED NEGATIVE DECLARATION RTI INFRASTRUCTURE, INC. EUREKA SUBSEA FIBER OPTIC CABLES PROJECT February 2021 CEQA Lead Agency: California State Lands Commission 100 Howe Avenue, Suite 100 South Sacramento, California 95825 Applicant: RTI Infrastructure, Inc. 268 Bush Street, #77 San Francisco, CA 94104 MISSION STATEMENT The California State Lands Commission provides the people of California with effective stewardship of the lands, waterways, and resources entrusted to its care through preservation, restoration, enhancement, responsible economic development, and the promotion of public access. CEQA DOCUMENT WEBSITE www.slc.ca.gov/ceqa/ Geographic Location (Point at Mean High-Tide Line) Latitude: 40º 48.19’ N Longitude: 124º 12.05’ W NAD83 Datum Cover Photo: Aerial view of the cable landing site TABLE OF CONTENTS EXECUTIVE SUMMARY .......................................................................................... ES-1 1.0 PROJECT AND AGENCY INFORMATION ...................................................... 1-1 1.1 PROJECT TITLE .................................................................................... 1-1 1.2 LEAD AGENCY AND PROJECT SPONSOR ......................................... 1-1 1.3 PROJECT LOCATION ............................................................................ 1-1 1.4 ORGANIZATION OF THE MITIGATED NEGATIVE DECLARATION ...................................................................................... 1-4 1.5 PROJECT BACKGROUND AND OBJECTIVES ..................................... 1-5 1.5.1 Project Need ................................................................................ 1-5 1.5.2 Existing Technology and Infrastructure ........................................ 1-5 1.5.3 Proposed Technology and Infrastructure ..................................... 1-5 1.5.4 Project Objectives ........................................................................ 1-5 1.6 PUBLIC REVIEW AND COMMENT ........................................................ 1-6 1.7 APPROVALS AND REGULATORY REQUIREMENTS .......................... 1-6 1.7.1 California State Lands Commission ............................................. 1-6 1.7.2 Other Agencies ............................................................................ 1-7 2.0 PROJECT DESCRIPTION ................................................................................ 2-1 2.1 PROJECT WORK AREAS ...................................................................... 2-1 2.1.1 Summary of Terrestrial Project Components ............................... 2-1 2.1.2 Summary of Marine Project Components .................................... 2-5 2.2 PROJECT WORK PHASES AND WORK SCHEDULE .......................... 2-7 2.2.1 Work Phases ................................................................................ 2-7 2.2.2 Work Schedule ............................................................................. 2-8 2.3 DETAILED TERRESTRIAL PROJECT COMPONENTS ...................... 2-10 2.3.1 Cable Landing Site ..................................................................... 2-10 2.3.2 Terrestrial Fiber Optic Cable ...................................................... 2-13 2.4 DETAILED MARINE PROJECT COMPONENTS ................................. 2-14 2.4.1 Marine Protected Areas ............................................................. 2-15 2.4.2 Humboldt Open Ocean Disposal Site ......................................... 2-15 2.4.3 Offshore Wind Farms ................................................................. 2-15 2.4.4 Horizontal Directional Drilling Fluid ............................................ 2-16 2.4.5 Inadvertent Releases of Horizontal Directional Drilling Fluid ...... 2-16 2.4.6 Landing Pipes ............................................................................ 2-17 2.4.7 Marine Fiber Optic Cable Design ............................................... 2-19 2.4.8 Signal Regenerators in the Marine Fiber Optic Cables .............. 2-20 2.4.9 Marine Project Construction Methods ........................................ 2-20 2.5 CABLE OPERATIONS, MAINTENANCE, AND REPAIR ...................... 2-25 2.5.1 Cable Operations and Maintenance ........................................... 2-25 2.5.2 Emergency Cable Repair (Marine) ............................................. 2-26 February 2021 i Eureka Subsea Cables Project MND Table of Contents 2.6 RETIREMENT, ABANDONMENT, OR REMOVAL OF THE CABLE SYSTEM ............................................................................................... 2-26 3.0 ENVIRONMENTAL CHECKLIST AND ANALYSIS .......................................... 3-1 3.1 AESTHETICS ......................................................................................... 3-3 3.1.1 Environmental Setting .................................................................. 3-3 3.1.2 Regulatory Setting ........................................................................ 3-9 3.1.3 Impact Analysis .......................................................................... 3-10 3.1.4 Mitigation Summary ................................................................... 3-11 3.2 AGRICULTURE AND FORESTRY RESOURCES ............................... 3-12 3.2.1 Environmental Setting ................................................................ 3-12 3.2.2 Regulatory Setting ...................................................................... 3-13 3.2.3 Impact Analysis .......................................................................... 3-13 3.2.4 Mitigation Summary ................................................................... 3-13 3.3 AIR QUALITY ....................................................................................... 3-14 3.3.1 Environmental Setting ................................................................ 3-14 3.3.2 Regulatory Setting ...................................................................... 3-20 3.3.3 Impact Analysis .......................................................................... 3-23 3.3.4 Mitigation Summary ................................................................... 3-26 3.4 BIOLOGICAL RESOURCES ................................................................ 3-27 3.4.1 Environmental Setting ................................................................ 3-27 3.4.2 Regulatory Setting ...................................................................... 3-48 3.4.3 Impact Analysis .......................................................................... 3-50 3.4.4 Mitigation Summary ................................................................... 3-72 3.5 CULTURAL RESOURCES ................................................................... 3-73 3.5.1 Environmental Setting ................................................................ 3-73 3.5.2 Regulatory Setting ...................................................................... 3-82 3.5.3 Impact Analysis .......................................................................... 3-83 3.5.4 Mitigation Summary ................................................................... 3-87 3.6 CULTURAL RESOURCES – TRIBAL ................................................... 3-88 3.6.1 Environmental Setting ................................................................ 3-88 3.6.2 Regulatory Setting ...................................................................... 3-91 3.6.3 Impact Analysis .......................................................................... 3-92 3.6.4 Mitigation Summary ................................................................... 3-92 3.7 ENERGY ............................................................................................... 3-93 3.7.1 Environmental Setting ................................................................ 3-93 3.7.2 Regulatory Setting ...................................................................... 3-93 3.7.3 Impact Analysis .......................................................................... 3-93 3.7.4 Mitigation Summary ................................................................... 3-94 3.8 GEOLOGY, SOILS, AND PALEONTOLOGICAL RESOURCES .......... 3-95 3.8.1 Environmental Setting ................................................................ 3-95 3.8.2 Regulatory Setting ...................................................................... 3-99 Eureka Subsea Cables Project MND ii February 2021 Table of Contents 3.8.3 Impact Analysis ........................................................................ 3-102 3.8.4 Mitigation Summary ................................................................. 3-105 3.9 GREENHOUSE GAS EMISSIONS ..................................................... 3-106 3.9.1 Environmental Setting .............................................................. 3-106 3.9.2 Regulatory Setting .................................................................... 3-109 3.9.3 Impact Analysis ........................................................................ 3-111 3.9.4 Mitigation Summary ................................................................. 3-114 3.10 HAZARDS AND HAZARDOUS MATERIALS ..................................... 3-115 3.10.1 Environmental Setting .............................................................. 3-115 3.10.2 Regulatory Setting .................................................................... 3-117 3.10.3 Impact Analysis ........................................................................ 3-117 3.10.4 Mitigation Summary ................................................................