New mapping tool allows users to analyze water data and identify pollution problems in their communities including the potential polluters. Environmental Protection Agency released the Water Quality Indicators (WQI) tool, the first EPA interface that allows users to compare millions of data records from water monitoring stations. Facilitated by a mapping tool, the WQI makes it easy to explore nutrient and pathogen data and identify the potential sources that are contributing to water quality problems. The WQI allows users to see pollutant level trends from nearby monitoring stations and compare to other stations across the country. The tool provides data on facilities including compliance records and as well as environmental justice indicators gathered through EJScreen, EPA's environmental justice screening and mapping tool.