With rare exception, the USGS does not post information or materials unless they are produced in partnership with our agency. You might be able to find a USGS scientist who is interested in working with you to develop a lesson plan, in which case it...
Data are offered as a file or personal geodatabase, but can also be downloaded as a shapefile. NHD is available as a State Extract, in pre-staged subregions, or in a specified extent from the The National Map viewer. 
Your water might be affected by iron, a commonly occurring constituent of drinking water. Iron tends to add a rusty, reddish brown (or sometimes yellow) color to water, and leaves particles of the same color. If the color is more like black, it could be...
The USGS is a science bureau within the United States Department of the Interior. It provides impartial information on the health of our ecosystems and environment, the natural hazards that threaten us, the natural resources we rely on, the impacts of...
The USGS Water Science for Schools Web site has a link to 'Water Science Glossary of Terms'. This page offers links to additional glossaries. The U.S. Environmental Protection Agency also has a Drinking Water Glossary. 
The USGS Education website is your gateway to classroom resources. Explore links to lesson plans, activities, educational videos, online lectures, posters, non-technical publications, and images for kindergarten through college teachers, students, and...
Water leaving our homes generally goes either into a septic tank in the back yard where it evaporates or seeps back into the ground, or is sent to a sewage-treatment plant through a sewer system. In 1995, about 26 percent of the water coming from our...
For general inquiries, call 1-888-ASK-USGS (1-888-275-8747) or use the online form.If you know the name of a specific person who you would like to contact, look them up at the USGS employee phonebook. USGS officesPlease note that many of our offices are...
 USGS offices in each state. The USGS Headquarters office is located in Reston, Virginia.     
The USGS provides data on many different science topics. Most of it can be downloaded for free from our website. If you are looking for a particular data set and cannot find it through Internet searches, please call USGS Science Information Services toll...