Opposition mounts over Valley Water’s plan to expand Pacheco Reservoir and its dam

THE OPPOSITION AGAINST the Pacheco Dam expansion in south Santa Clara County is growing — and so is the list of plaintiffs suing Valley Water over the project.

Last week, the environmental advocacy group Sierra Club and the Amah Mutsun Tribal Band have added their names to the Stop Pacheco Dam Coalition, which is suing Valley Water. The lawsuit, first filed in June by environmentalists and landowners, challenges the water district’s reliance on environmental exemptions, arguing it will result in grave environmental consequences.