River Issues

Presentation to the Washington Department of Ecology: 6PPD-Q State of the Science Forum on December 9, 2025 Presented by Laura Baker, Friends of Gualala River, and Timmarie Hamill, CA Urban Streams Alliance-The Stream Team Abstract In 2022, CA Urban Streams Alliance-The Stream Team (The Stream Team) expanded its long-standing watershed monitoring program and began collaborating with Friends of Gualala River …

November 18, 2025For immediate release from Friends of Gualala RiverContact: Laura Baker, 510-684-4572, Lbake66@aol.com With the return of fall storms, Friends of Gualala River in partnership with The Stream Team and other volunteers have launched their second season of testing Gualala stormwater for a potent toxic chemical found in tire grit. The chemical is extremely hazardous to salmonids, especially coho …

Tires treated with 6PPD (which becomes 6PPD-Q) will be with us for a very long time before manufacturers find new alternatives and old tires are removed from the environment. These toxic compounds will continue to affect human health and the health of the environment for decades to come. But in the meantime, here are a few simple steps that you …

May, 2025by Timmarie Hamill, Director, The Stream Team Brief summary: “The results suggest runoff pollution primarily originates from gas stations, parking lots, and Highway 1. For instance, 6PPD-q levels ranged from 71 to 179 ng/L at the Gas Station, Parking Lot, and Footbridge sites, compared to 14 to 28 ng/L at the Above Trinks site. Zinc levels followed a similar …

May, 2025 by Greg Kamman, Professional Geologist & Certified Hydrogeologist Brief Summary: “Because the Project schedule is advancing quickly, we recommend that the Friends of Gualala River convene a meeting with Caltrans and cbec to discuss the findings and conceptual BMP recommendations presented herein. Given The Stream Team’s water quality monitoring expertise and experience in pollutant reduction BMP design, we …

July 15, 2025 by Dylan Freebairn-Smith Friends of Gualala River Introduction Next week, at long last, the public will have the opportunity to offer comment on preliminary steps being taken to reduce sediment pollution washing into the Gualala River, which has been harming endangered coho salmon and threatened steelhead. Nearly thirty years after the river was first listed as impaired, …

Introduction The North Coast Regional Water Quality Control Board is proposing to develop a new water quality permit that will apply to landowners with rural roads in the Gualala River Watershed. The permit, also referred to as “order” or “project” in this Initial Study, will require landowners to maintain their roads to reduce erosion and sediment discharges to watercourses. Landowners …

The China Gulch culvert under Highway 1 at the intersection of Old State Highway in Gualala is failing, causing a sinkhole to form at the intersection, and so it needs to be replaced promptly. CalTrans has approved $9.9M for emergency repair, and hopes to complete repairs by the end of November, 2025. China Gulch culvert, west side of Highway 1, …

In 1994, the entire Gualala River watershed was listed on section 303(d) of the federal Clean Water Act as impaired for excessive sedimentation / siltation. Excessive sediment in the Gualala River watershed impairs Beneficial Uses associated with the Gualala River’s salmonid fishery and habitat. In 2001, the U.S. Environmental Protection Agency (EPA) established a Total Maximum Daily Load (TMDL) for …

Download a pdf version of this presentation Staff Presentation Project Goals, History, and Timeline Purpose of CEQA Scoping Meeting Project Location: Gualala River Watershed Overview Gualala River Sediment Total Maximum Daily Load (TMDL) What is a TMDL? Problem Statement Water Quality Objectives Source Analysis Load Allocations Existing Programs of Implementation Potential Additional Implementation Actions Public Comments: CEQA Scoping of Possible …

Download a pdf version of the main TMDL document This Gualala River Total Maximum Daily Load (TMDL) for sediment is prepared as part of a Clean Water Act program to assure that State water quality standards are achieved and beneficial uses protected. Protection of cold water fish such as coho and steelhead from human caused erosion of sediment is the …

The China Gulch culvert under Highway 1 at the intersection of Old State Highway in Gualala is failing, causing a sinkhole to form at the intersection, and so it needs to be replaced promptly. CalTrans has approved $9.9M for emergency repair, and hopes to complete repairs by the end of November, 2025. For more information, see: Sinkholes and Salmon May …

Research by King County, WA scientists on how to reduce the toxicity of stormwater runoff is showing promising results and could offer new solutions to the longstanding problem of coho salmon dying from exposure to pollution before they can spawn.

Download a pdf version of this flyer: New Water Quality Permit for Gualala River Watershed Landowners For more information, visit the North Coast Regional Water Quality Control Board: https://www.waterboards.ca.gov/northcoast/water_issues/programs/waru/

Re-posting this vital message from the summer of 2012, by Jeanne Jackson and Peter Baye Friends don’t let friends drive in the Gualala River. The Gualala River, now closed to the Pacific Ocean by a huge sandbar, is a coastal treasure. Creatures big and small make it their home. Care must be taken to protect them and this beautiful wild …

The ever-changing pothole / sinkhole at the convergence of Old State Highway and Highway One is generated by a decaying culvert far underground. If you read the paper two weeks ago or have felt the bump in your car, you know about the sinkhole at the bottom of Old State Highway. The 4ft x 4ft pothole, caused by a failing …

by Dylan Freebairn-Smith, Conservation Analyst One of the first projects that Dylan has tackled is analyzing the TMDL program for the Gualala. Summary The Gualala River has been listed as impaired under the federal Clean Water Act due to elevated sediment levels since 1993 and has exceeded the Environmental Protection Agency’s Total Maximum Daily Load (TMDL) of sediment since 2001. …

by Laura Baker, Board Member In 2020 FoGR learned of a chemical found in tire grit that pollutes stormwater and kills a number of different aquatic species. It is especially toxic to coho salmon— 40 parts per trillion in a quart of stormwater kills juvenile coho. Information has been pouring out of the State of Washington where the effects of …

On May 16, 2024, the California Coastal Commission issued a permit to Bower Limited Partnership for replacement of the failed retaining wall behind the Surf Market and directly above the Gualala River estuary. The Surf Market building was built too close to the bluff edge in 1983, in violation of coastal development permit CDP No. NCR-80-P-75, which is why the …

Mouth of the Gualala River on May 20, 2024; photo courtesy of Bob Rutemoeller