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Fire Vulnerability Assessment for Mendocino County ______
FIRE VULNERABILITY ASSESSMENT FOR MENDOCINO COUNTY ____________________________________________ _________________________________________ August 2020 Mendocino County Fire Vulnerability Assessment ________________________________________________________________________________________ TABLE OF CONTENTS Page SECTION I- OVERVIEW ........................................................................................................... 6 A. Introduction ............................................................................................................................... 6 B. Project Objectives ...................................................................................................................... 6 C. Mendocino County Description and Demographics ................................................................ 7 D. Planning Area Basis .................................................................................................................. 8 SECTION II- COUNTY WILDFIRE ASSESSMENT ............................................................ 9 A. Wildfire Threat ......................................................................................................................... 9 B. Weather/Climate ........................................................................................................................ 9 C. Topography ............................................................................................................................. 10 D. Fuel Hazards .......................................................................................................................... -
Black Butte Wild and Scenic River Comprehensive River Management Plan Environmental Assessment
Black Butte Wild and Scenic River Comprehensive River Management Plan Environmental Assessment Recreation & Visual Resource Report Prepared by: Shannon Pozas For: Covelo Ranger District Mendocino National Forest Service 1 August 2017 Contents 1.0 INTRODUCTION .................................................................................................................. 3 1.1 Project Description .............................................................................................................. 3 1.2 Purpose and Need................................................................................................................ 4 1.3 Overview of Issues & Issue Indicators ................................................................................... 4 1.4 Methodology ...................................................................................................................... 4 1.5 Mendocino National Forest Land and Resource Management Plan – LRMP .............................. 5 1.6 Forest Niche ....................................................................................................................... 5 2.0 AFFECTED ENVIRONMENT ................................................................................................ 6 2.1 Black Butte River and Cold Creek Segments .......................................................................... 6 2.2 Recreation Opportunity Spectrum ...................................................................... 6 2.3 Visual Quality Objectives .................................................................................................. -
Eel River Cooperative Cyanotoxin Analysis Summary 2013-2017
Eel River Cooperative Cyanotoxin Analysis Summary 2013-2017 By: Eli Asarian and Patrick Higgins Edited by: Diane Higgins Performed for: The Eel River Recovery Project August 2018 Business Sponsors of ERRP Cyanotoxin Analysis Thanks to Individual Crowdfunding Donors and Those Who Contributed Off-line to Support ERRP Cyanotoxin Work: Barbara & David Sopjes Dr. Andrew Stubblefield Mary Power Ree Slocum Bill Dietrich Ben Middlemiss Dean & Sharon Edell Judy Schriebman Jack Crider Daron Pedroja Tim Talbert Gil Anda Ken Miller Will Parrish Dani Walthall Chris McBride Zane and Amanda Ruddy Christina Tran Brett Lovelace Sarah Ottley Ken Vance-Borland Karen & Scott Welsh Thomas Daugherty Pureum Kim Keith Bouma-Gregson Alex Christie Lee McClellan Matthew Amberg Charlie Liphart Eric Damon Walters April Mason Amy Collette Jason Hartwick Marissa Adams Kristin McDonald John Filce Carl Zichella Robert Leher Thanks also to experiment.com, our crowdfunding host that raises funds for scientific research throughout the World: https://experiment.com/projects/when-does-the-eel-river-turn-toxic- patterns-in-cyanotoxin-occurrence-2013-2016. This study was postponed a year so we could collect 2017 cyanotoxin data. Thanks for your patience. Contents Acknowledgements ....................................................................................................................................... 1 Executive Summary ....................................................................................................................................... 2 Background -
Sedimentation of Lake Pillsbury Lake County California
Sedimentation of Lake Pillsbury Lake County California GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1619-EE Prepared in cooperation with the State of California Department of fFater Resources Sedimentation of Lake Pillsbury Lake County California By G. PORTERFIELD and C. A. DUNNAM CONTRIBUTIONS TO THE HYDROLOGY OF THE UNITED STATES GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1619-EE Prepared in cooperation with the State of California Department of fFater Resources UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1964 UNITED STATES DEPARTMENT OF THE INTERIOR STEWART L. UDALL, Secretary GEOLOGICAL SURVEY Thomas B. Nolan, Director For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 CONTENTS Paw Abstract___________________________________________ EEl Introduction._____________________________________________________ 2 Location and general features--___-__-____-_-_-_---__--_--_---_- 2 Purpose and scope_____________________________________________ 2 Acknowledgments ________________'__________________--_-_______ 2 Drainage basin.___________________________________________________ 3 Physiography and soils.._______________________________________ 3 Climate ______________________________________________________ 4 Vegetation__ _--_-_____________-_-___---___-----__-_-_-_-____ 5 Dam and reservoir_____-__-__-_____________-______-___-_-__-_-_-_ 5 Dam_________________________________________________________ 5 Datum.______________________________________________________ 7 Reservoir___________________________________________________ -
Cultural and Historic Resources Assessment and Management Plan Analysis Report (R2018050800003)
1 Cultural and Historic Resources Assessment and Management Plan Analysis Report (R2018050800003) Black Butte River and Cold Creek Segments Black Butte River Wild and Scenic River Mendocino National Forest November 2017 Purpose The comprehensive Management Plan for the Black Butte and Cold Creek Wild and Scenic River (WSR) establishes programmatic management direction for the WSR corridor. It has been developed to implement the direction of the Wild and Scenic River Act of 1968 as amended in the 2006 Northern California Coastal Wild Heritage Wilderness Act (Public Law 109-362) to include 19.5 miles of the Black Butte River and 1.5 miles of Cold Creek. The WSR Act established a system for preserving outstanding free-flowing rivers. A defined section in Section 1(b) of the WSR Act: “certain selected rivers of the Nation which, with their immediate environments, possess outstandingly remarkable scenic, recreations, geologic, fish and wildlife, historic, cultural, or other similar values, shall be preserved in free-flowing condition, and that they and their immediate environments shall be protected for the benefit and enjoyment of present and future generations” (PL 90-542, 1968). The WSR Act requires the Forest Service to develop a comprehensive WSR Management Plan for the Black Butte and Cold Creek to protect and enhance the outstandingly remarkable fish and cultural/historic values. The WSR Management Plan will guide all development, management, and restoration activities within the WSR corridor. It includes standards and guidelines from the Proposed Action Alternative, an Implementation Plan with a list of possible projects, and a Monitoring Plan. The standards and guidelines are a statement of the WSR Management Plan’s management direction; however, the potential projects from the implementation plan are estimates and depend on site-specific NEPA (National Environmental Policy Act) analysis and the agency’s budgeting process. -
Thirsty Eel Oct. 11-Corrections
1 THE THIRSTY EEL: SUMMER AND WINTER FLOW THRESHOLDS THAT TILT THE EEL 2 RIVER OF NORTHWESTERN CALIFORNIA FROM SALMON-SUPPORTING TO 3 CYANOBACTERIALLY-DEGRADED STATES 4 5 In press, Special Volume, Copeia: Fish out of Water Symposium 6 Mary E. Power1, 7 Keith Bouma-Gregson 2,3 8 Patrick Higgins3, 9 Stephanie M. Carlson4 10 11 12 13 14 1. Department of Integrative Biology, Univ. California, Berkeley, Berkeley, CA 94720; Email: 15 [email protected] 16 17 2. Department of Integrative Biology, Univ. California, Berkeley, Berkeley, CA 94720; Email: 18 [email protected]> 19 20 3. Eel River Recovery Project, Garberville CA 95542 www.eelriverrecovery.org; Email: 21 [email protected] 22 23 4. Environmental Sciences, Policy and Management, University of California, Berkeley, Berkeley, CA 24 94720; Email: [email protected] 25 26 27 Running head: Discharge-mediated food web states 28 29 Key words: cyanobacteria, discharge extremes, drought, food webs, salmonids, tipping points 30 31 Although it flows through regions of Northwestern California that are thought to be relatively well- 32 watered, the Eel River is increasingly stressed by drought and water withdrawals. We discuss how critical 33 threshold changes in summer discharge can potentially tilt the Eel from a recovering salmon-supporting 34 ecosystem toward a cyanobacterially-degraded one. To maintain food webs and habitats that support 35 salmonids and suppress harmful cyanobacteria, summer discharge must be sufficient to connect mainstem 36 pools hydrologically with gently moving, cool base flow. Rearing salmon and steelhead can survive even 37 in pools that become isolated during summer low flows if hyporheic exchange is sufficient. -
An Estimation of Potential Salmonid Habitat Capacity in the Upper Mainstem Eel River, California
AN ESTIMATION OF POTENTIAL SALMONID HABITAT CAPACITY IN THE UPPER MAINSTEM EEL RIVER, CALIFORNIA By Emily Jeanne Cooper A Thesis Presented to The Faculty of Humboldt State University In Partial Fulfillment of the Requirements for the Degree Master of Science in Natural Resources: Environmental and Natural Resource Science Committee Membership Dr. Alison O’Dowd, Committee Chair Dr. James Graham, Committee Member Dr. Darren Ward, Committee Member Dr. Alison O’Dowd, Graduate Coordinator May 2017 ABSTRACT AN ESTIMATION OF POTENTIAL SALMONID HABITAT CAPACITY IN THE UPPER MAINSTEM EEL RIVER, CALIFORNIA Emily Jeanne Cooper In Northern California’s Eel River watershed, the two dams that make up the Potter Valley Project (PVP) restrict the distribution and production of anadromous salmonids, and current populations of Chinook Salmon (Oncorhynchus tshawytscha) and steelhead trout (O. mykiss) in the upper mainstem Eel River are in need of recovery. In anticipation of the upcoming FERC relicensing of the PVP, this project provides an estimation of the extent of potential salmonid habitat and its capacity for steelhead trout and Chinook Salmon in the upper mainstem Eel River watershed above the impassable Scott Dam. Using three fish passage scenarios, potential Chinook Salmon habitat was estimated between 89-127 km (55-79 mi) for spawning and rearing; potential steelhead trout habitat was estimated between 318-463 km (198-288 mi) for spawning and between 179-291 km (111-181 mi) for rearing. Rearing habitat capacity was modeled with the Unit Characteristic Method, which used surrogate fish density values specific to habitat units (i.e. pools, riffles, runs) that were adjusted by measured habitat conditions. -
Black Butte River Proposed Wilderness Area
Proposed Wilderness Pattison Northern California Mountains and Rivers Black Butte River Proposed Wilderness Area Description Quick Facts The Wild and Scenic Black Butte River flows northwest for almost 30 Management Agency: miles from the crest of the northern Coast Range to the Wild and U.S. Forest Service, Scenic Middle Fork Eel River downstream. Mendocino National Forest The proposed wilderness is situated in the river’s V-shaped, rugged Location: canyon, where it hosts resident trout, Chinook salmon, and winter-run Mendocino County, CA; nd steelhead. Downstream, the Middle Fork Eel supports what is 2 Congressional District presently considered to be the southernmost population of summer- run steelhead on the West Coast and the largest single run of summer Watershed: Black Butte River, a steelhead in the state. Rich oak forests, meadows, and abundant tributary of the Middle Fork Eel ancient pine, fir and cedar forest grace the slopes above the river. The River Forest Service notes that the region contains so many pristine Size: 24,621 acres archeological sites that it is of “exceptional” cultural importance. The Black Butte has been rated as a class IV+ stream (very difficult) by Recreational Uses: Fishing, American Whitewater for those brave enough to kayak it. kayaking, hiking, horseback riding, important historical sites The Bauer brothers had this to say in American Whitewater Journal after running the stream in the 1970s: “The Black Butte is an all-time Ecological Values: classic! We all agreed that we had never experienced a better Ancient conifer and hardwood combination of fantastic rapids, beautiful scenery, abundant wildlife, forests, critically-important salmon and isolation from humanity. -
Salmonid Habitat and Population Capacity Estimates for Steelhead Trout and Chinook Salmon Upstream of Scott Dam in the Eel River, California
Emily J. Cooper1, Alison P. O’Dowd, and James J. Graham, Humboldt State University, 1 Harpst Street, Arcata, California 95521 Darren W. Mierau, California Trout, 615 11th Street, Arcata, California 95521 William J. Trush, Humboldt State University, 1 Harpst Street, Arcata, California 95521 and Ross Taylor, Ross Taylor and Associates, 1660 Central Avenue # B, McKinleyville, California 95519 Salmonid Habitat and Population Capacity Estimates for Steelhead Trout and Chinook Salmon Upstream of Scott Dam in the Eel River, California Abstract Estimating salmonid habitat capacity upstream of a barrier can inform priorities for fisheries conservation. Scott Dam in California’s Eel River is an impassable barrier for anadromous salmonids. With Federal dam relicensing underway, we demonstrated recolonization potential for upper Eel River salmonid populations by estimating the potential distribution (stream-km) and habitat capacity (numbers of parr and adults) for winter steelhead trout (Oncorhynchus mykiss) and fall Chinook salmon (O. tshawytscha) upstream of Scott Dam. Removal of Scott Dam would support salmonid recovery by increasing salmonid habitat stream-kms from 2 to 465 stream-km for steelhead trout and 920 to 1,071 stream-km for Chinook salmon in the upper mainstem Eel River population boundaries, whose downstream extents begin near Scott Dam and the confluence of South Fork Eel River, respectively. Upstream of Scott Dam, estimated steelhead trout habitat included up to 463 stream-kms for spawning and 291 stream-kms for summer rearing; estimated Chinook salmon habitat included up to 151 stream-kms for both spawning and rearing. The number of returning adult estimates based on historical count data (1938 to 1975) from the South Fork Eel River produced wide ranges for steelhead trout (3,241 to 26,391) and Chinook salmon (1,057 to 10,117). -
Initial Study Report for FERC Projects
Potter Valley Project FERC Project No. 77 Initial Study Report September 2020 ©2020, Potter Valley Project Notice of Intent Parties California Trout Humboldt County Mendocino County Inland Water and Power Commission Round Valley Indian Tribes Sonoma County Water Agency This Page Intentionally Left Blank POTTER VALLEY PROJECT NOTICE OF INTENT PARTIES Potter Valley Hydroelectric Project FERC Project No. 77 Initial Study Report September 2020 ©2020, Potter Valley Project Notice of Intent Parties California Trout Humboldt County Mendocino County Inland Water and Power Commission Round Valley Indian Tribes Sonoma County Water Agency This Page Intentionally Left Blank Potter Valley Project, FERC Project No. 77 Initial Study Report TABLE OF CONTENTS SECTION 1.0 INTRODUCTION .................................................................................... 1-1 1.1 Project Background ....................................................................................... 1-1 1.2 FERC Requirements for Proposed Modification to Approved Studies and New Studies .................................................................................................... 1-4 SECTION 2.0 STATUS OF FERC-APPROVED STUDIES AND PROPOSED STUDY MODIFICATIONS .............................................. 2-1 2.1 AQ 1 – Hydrology .......................................................................................... 2-3 2.2 AQ 2 – Water Temperature ........................................................................... 2-5 2.3 AQ 3 – Water Quality ................................................................................... -
MICROCOMP Output File
109TH CONGRESS 1ST SESSION S. 128 AN ACT To designate certain public land in Humboldt, Del Norte, Mendocino, Lake, and Napa Counties in the State of California as wilderness, to designate certain segments of the Black Butte River in Mendocino County, Cali- fornia as a wild or scenic river, and for other purposes. 1 Be it enacted by the Senate and House of Representa- 2 tives of the United States of America in Congress assembled, 3 SECTION 1. SHORT TITLE. 4 This Act may be cited as the ‘‘Northern California 5 Coastal Wild Heritage Wilderness Act’’. 2 1 SEC. 2. DEFINITION OF SECRETARY. 2 In this Act, the term ‘‘Secretary’’ means— 3 (1) with respect to land under the jurisdiction 4 of the Secretary of Agriculture, the Secretary of Ag- 5 riculture; and 6 (2) with respect to land under the jurisdiction 7 of the Secretary of the Interior, the Secretary of the 8 Interior. 9 SEC. 3. DESIGNATION OF WILDERNESS AREAS. 10 In accordance with the Wilderness Act (16 U.S.C. 11 1131 et seq.), the following areas in the State of California 12 are designated as wilderness areas and as components of 13 the National Wilderness Preservation System: 14 (1) SNOW MOUNTAIN WILDERNESS ADDITION.— 15 (A) IN GENERAL.—Certain land in the 16 Mendocino National Forest, comprising ap- 17 proximately 23,312 acres, as generally depicted 18 on the maps described in subparagraph (B), is 19 incorporated in and shall considered to be a 20 part of the ‘‘Snow Mountain Wilderness’’, as 21 designated by section 101(a)(31) of the Cali- 22 fornia Wilderness Act of 1984 (16 U.S.C. -
Appendix L Wild and Scenic River Evaluation
APPENDIX L WILD AND SCENIC RIVER EVALUATION INTRODUCTION Congress passed the Wild and Scenic Rivers Act in 1968 to preserve riverine systems that contain certain exceptionally outstanding features such as scenery, recreation, geology, fish and wildlife, historic and cultural resources. Selected rivers and their immediate environments are to be preserved in a free flowing condition and are to be managed for the benefit and enjoyment of present and future generations. In October 1979, an Environmental Message from the President directed the Department of the Interior (USDI) to inventory all potential Wild and Scenic rivers and directed agencies to assess the suitability of the inventoried rivers for additions to the National Wild and Scenic Rivers System. The Nationwide Rivers Inventory (NRI) was conducted by the Heritage, Conservation and Recreation Service, USDI (now the National Park Service). The Middle Fork of the Eel River, which originates on the Mendocino National Forest, was the only river on the Mendocino National Forest included on the preliminary (Phase I) NRI in 1980. In January 1981, the Secretary of the Interior designated five California rivers as components of the National Wild and Scenic Rivers System under Section 2 (a) (il) of the National Wild and Scenic Rivers Act. The lower 23.5 miles of the Middle Fork of the Eel River was included in this designation and is currently managed as a Wild River. The upper 14.5 miles, which includes the headwaters of the Middle Fork of the Eel River, had not been analyzed for designation. This upper segment lies within the Yolla Bolly-Middle Eel Wilderness.