What is the East Palestine Potable Water Sampling Work Plan?

In February, EPA required Norfolk Southern to investigate drinking water sources through a work plan approved by responding agencies. The work plan is being used to monitor drinking water near the derailment site, and recently changed to include more areas for water sampling. These new areas were chosen based on groundwater and surface water flows, and the watershed basin. Agencies coordinating the drinking water sampling include EPA, Ohio EPA, Columbiana County Health District, Ohio Department of Health, and the Pennsylvania Department of Environmental Protection.