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San Miguel, Santa Rosa, & Santa Cruz Islands CCA Factsheet 2019

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San Miguel, Santa Rosa, & Santa Cruz Islands CCA Factsheet 2019 CCA #55 San Miguel, Santa Rosa, & Santa Cruz Islands Critical Coastal Area DESCRIPTION The watersheds of these three islands in Santa Barbara County flow into the San Miguel, Santa Rosa, and Santa Cruz Islands “Area of Special Biological Significance” (ASBS), an ocean area monitored and maintained for water quality by the State Water Resources Control Board. These islands are entirely surrounded by the ASBS, which contains 274,461 acres of marine habitat, and borders on 194 miles of Santa Cruz Island coastline. This ASBS lies within the Channel Islands National Marine Sanctuary, which is managed by the National Park (Photo courtesy of the Service, and extends out to six miles offshore. Channel Islands National Park). The National Park Service manages the land on San Miguel and Santa Rosa Islands, and the eastern 24% of Santa Cruz Island, as the Channel Islands National Park; the Nature Conservancy manages the western 76% of Santa Cruz Island. San Miguel Island is the westernmost of the Channel Islands, and is approximately 26 miles from the mainland. The National Park Service maintains two airstrips, a ranger station, and a research station on San Miguel Island. In 2016, the island was reopened to public visitors on ranger-led outings on the established trail system, after the U.S. Navy surveyed marked trails and high-use areas to remove any dangerous ordnance. Three California Marine Protected Areas (Richardson Rock, Judith Rock, and Harris Point State Marine Reserves) encompass portions of the ocean waters adjacent to the island. Santa Rosa Island has grass-covered rolling hills, steep canyons, creeks, rocky intertidal areas, and sandy beaches. The roads on this island may contribute to erosion and downstream deposition of sediment, some of which may be carried by transported by streams into the ASBS. Recreational activities on the island include camping, hiking, and kayaking. California State University Channel Islands operates a field research station on the island. Three state Marine Protected Areas (South Point, Carrington Point, and Skunk Point State Marine Reserves) encompass portions of the ocean waters adjacent to the island. Santa Cruz Island is the largest of the northern Channel Islands. The coastline is very diverse, consisting of sheer cliffs and bluffs, beaches, and grasslands. Sheep ranching was historically practiced on this island, and areas where vegetation was depleted are still visible; erosion remains a problem. Six state Marine Protected Areas (Gull Island, Scorpion, and Footprint State Marine Reserves; Anacapa Island and Painted Cave State Marine Conservation Areas; and Anacapa Island Special Closure) encompass portions of the ocean waters adjacent to the island. There are no waterbodies in this CCA that are listed as impaired on the current (2016) Clean Water Act 303(d) list. California Coastal Commission – December 2019 Page 1 CRITERIA FOR CCA IDENTIFICATION The San Miguel, Santa Rosa, and Santa Cruz Islands Critical Coastal Area (CCA) was identified in 2002 based on the criterion of a coastal watershed that flows into an Area of Special Biological Significance (San Miguel, Santa Rosa, and Santa Cruz Islands ASBS), which is also a State Water Quality Protection Area. ADDRESSING POLLUTANTS Section 303(d) of the federal Clean Water Act requires states to make a list of impaired waters that are not attaining water quality standards, and to develop a Total Maximum Daily Load (TMDL) or similar approach to account for all sources of the pollutants that caused the water to be listed as impaired. TMDLs include allocations to both point and nonpoint sources (NPS) of the listed pollutants. The current (2016) 303(d) list of impaired waterbodies includes pollutants, potential pollutant sources, and year a TMDL was approved or is expected. To address NPS pollutants, see California’s Nonpoint Source Management Measures for guidance on selecting appropriate Management Measures, which consist of a suite of plans, practices, technologies, operating methods, or other measures that may be used to control NPS pollution. Information for this factsheet was originally compiled by members of California’s Critical Coastal Areas Statewide Committee in 2006. The factsheet was revised and updated in 2019 by the California Coastal Commission’s Water Quality Program staff. Funding for this project has been provided in part by the U.S. Environmental Protection Agency (U.S. EPA) pursuant to Assistance Agreement Nos. C9-79757514; C9-79757515; C9-79757517, and any amendments thereto which have been awarded to the Water Board for the implementation of California’s NPS Program. The content of this document does not necessarily reflect the views and policies of the U.S. EPA or the Water Board, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. San Miguel, Santa Rosa, & Santa Cruz Islands CCA Factsheet Page 2 .
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