{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"KZYX News","title":"Diversion without dams: CDFW study suggests possibilities for Potter Valley Project","html":"","width":"100%","height":180,"duration":389,"description":"December 17, 2021 — The Potter Valley Project is in a phase of uncertainty, but a recent feasibility study could be a blueprint for a future that includes a diversion without dams. \r\nThe deadline for the license application is coming up in mid-April, and PG&E, which owns the project, has made it clear that it does not intend to renew. The coalition seeking to take over the license hasn’t come up with the money it needs to fund the necessary studies. And PG&E is not paying for a costly repair at the powerhouse that drastically reduces the amount of water the project is able to divert from the Eel River into the Russian River and on into Lake Mendocino.\r\nThe new study, a technical memorandum funded by the California Department of Fish and Wildlife with cannabis taxes, posits a few strategies for decommissioning the dams and building structures to continue seasonal diversions.\r\nDarren Mireau, the North Coast Director of California Trout, signaled that he favors the rapid removal option with pumping. (CalTrout is a member of the Two-Basin Partnership, the coalition of entities that has filed a notice of intent to take over the license, but Mireau is not speaking on behalf of the entire Partnership here.)\r\nHe says sediment, both of the sandy and the rocky varieties, will play a large role in how any of the alternatives is carried out. Sediment buildup that reduced the capacity of the van Arsdale reservoir behind Cape Horn Dam was a large part of the reason Scott Dam and Lake Pillsbury were built in 1922, 14 years after Cape Horn. \r\n“You’re goint to have an impact with sediment release, and you could do that once, or you could do that four times,” he said of the rapid removal option, as opposed to the phased approach, which would take place over four years. “And each time has about the same caliber of impact. So it seems reasonable to do it all at once and get past the impact, and get the dam out.” \r\nSince the point of dam removal is to protect fish, Mireau added, “We...","thumbnail_url":"https://img.transistorcdn.com/xZpAumwbhFUpJUYcwaQ1-q6snzOyqAm13l7cW6AWPCM/rs:fill:0:0:1/w:400/h:400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS9mMzkz/NjAwNjc2OWMyZmFk/YWY2YTdmYjI5M2Mz/YWMxNy5qcGc.webp","thumbnail_width":300,"thumbnail_height":300}