The Federal Emergency Management Agency (FEMA) lists several ways to purify water for human consumption on their Preparedness Web page. Also, the EPA fact sheet Emergency disinfection of drinking water is available in English and Spanish.
The EPA Office of Ground Water and Drinking Water Web page Drinking water and health: What you need to know has a link to “What are the health effects of contaminants in drinking water?” This link connects you to fact sheets for many contaminants.
You can view a national map of hardness in surface water. Hardness data (reflecting mostly calcium, plus a little magnesium) for individual drinking-water suppliers is on the following pages: EPA Local Drinking Water Information It is important to note that the U.S. Environmental Protection Agency has not set a legal limit or standard for hardness… Read more »
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.
Many, but not all, fish kills in the summer result from low concentrations of dissolved oxygen in the water. Fish, like all other complex life forms, need oxygen to survive. They get theirs in the form of oxygen gas dissolved in the water. That’s why it’s important to have an aeration device, a bubbler, in… Read more »
The U.S. Environmental Protection Agency sets standards for water that could affect human health and works with local government officials to reduce health risks in water where you swim or play. You may want to contact your local health deparment or state drinking water office for information specific to your area. Some EPA Web sites… Read more »
“E. coli is a type of fecal coliform bacteria commonly found in the intestines of animals and humans. E. coli is short for Escherichia coli. The presence of E. coli in water is a strong indication of recent sewage or animal waste contamination. Sewage may contain many types of disease-causing organisms.” The full fact sheet… Read more »
The U.S. Environmental Protection Agency has contaminant-specific fact sheets for many drinking water contaminants on their Web page Drinking water and health: What you need to know. Click on “What are the health effects of contaminants in drinking water?” This page also addresses the standards for levels of contaminants in drinking water under the heading… Read more »
As a government agency, the USGS does not comment on commercial products, but many organizations evaluate consumer products and post product reports on the Internet. NSF International (which EPA and others established for the purpose of certifying water treatment products, among other things), the Water Quality Association (the trade association of treatment companies), the U.S…. Read more »
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 a combination of iron and manganese. Both of these metals… Read more »