Installing trees in locations that are engineered to retain stormwater is a great way to augment existing stormwater management systems, increasing their capacity and improving water quality while greatly improving the urban forest canopy. This guide is an introduction to those engineered systems available, and in use today, that utilize trees to manage a volume of stormwater. These systems, in addition to providing a solution for managing runoff, also grow big trees.

Science Literacy will teach you about the process of science, how to think critically, how to differentiate science from pseudoscience, how indigenous wisdom can inform science, how to understand and design a scientific study, and how to critically evaluate scientific communication in the media.

The purpose of this site is to help you find scientific information organized on a watershed basis. This information, coupled with observations and measurements made by the watershed groups, provides a powerful foundation for characterizing, assessing, analyzing, and maintaining the status and health of a watershed.

This interactive map allows users to visualize watersheds, subbasins, urban areas, impaired waterways, and rivers in the Pontchartrain Basin.

The struggle to find clean drinking water has become a way of life for the residents of East Orosi. But they're not alone. Like a growing number of California's poor people, they're paying for water that's not fit to drink. One in 10 Californians in two major agricultural regions pays high rates for well water that's laced with nitrates, pesticides and other pollutants. Most are low-income Latinos; many speak only Spanish.

Various components of the overall pollutant loading picture of the Lake are known or have recently been estimated from data that is available. For example, there are quite a few spot or point analyses of pollutant levels at most of the significant inflows into the Lake, such as at municipal discharge points and mouths of major tributaries. Generally lacking at these points to establish pollutant loading levels are volume flow measurements and a statistically significant number of samples over an extended period of time.

pH is a measure of how acidic/basic water is. The range goes from 0 to 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. The pH of water is a very important measurement concerning water quality.

Race bears the strongest relationship to slow and ineffective enforcement of the federal drinking water law in communities across the nation, according to a new report released today. Watered Down Justiceis a new analysis of EPA data that confirms there is unequal access to safe drinking water, based most strongly on race, a scientific conclusion that mirrors the lived experience of people of color and low-income residents in the United States.

NEPAssist is a tool that facilitates the environmental review process and project planning in relation to environmental considerations. The web-based application draws environmental data dynamically from EPA Geographic Information System databases and web services and provides immediate screening of environmental assessment indicators for a user-defined area of interest. These features contribute to a streamlined review process that potentially raises important environmental issues at the earliest stages of project development.?

Estuaries are critically important ecosystems, yet they are also some of the most impacted by human activities. In this module, students will use real data to investigate the water quality characteristics of an estuary (water temperature, salinity and oxygen), the relationship between these parameters, and the effect that water quality has on estuarine organisms. Explore the Water Quality activity and download the Teacher's Guide.