A number of the air raid sirens that were originally installed within a radius of Trojan, to warn of an incident at the plant that could endanger the general public, continue to stand in the Washington cities of Longview, Kelso, and Kalama. Some of the other sirens, which have been removed, have been repurposed as tsunami warning sirens along the Oregon coast. While there are no plans to remove the remaining sirens, the city of Longview has removed a few of the sirens on an as-needed basis to make way for other projects.