The news report states that it was water collected from the ground on their property. It does not mention any testing whatsoever. There are many reasons why that water might be green, including that it may be related to the release, but without testing, there is no way to know. This is not water from the tap. All tap water monitoring in the area has come up clean so far. https://www.newsnationnow.com/us-news/midwest/train-derailment-east-palestine-resident-refuses-sign-form/