Where can I find information about bottled water?

Bottled water is regulated by the U.S. Food and Drug Administration and by individual states. For general information about bottled water, sources include the International Bottled Water Association and NSF International.

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How much water is used by people in the United States?

Since 1950, the USGS has collected and analyzed water-use data for the United States and its Territories . That data is revised every 5 years. As of 2015, the United States uses 322 billion gallons of water per day (Bgal/day). The three largest water-use categories were irrigation (118 Bgal/day), thermoelectric power (133 Bgal/day), and public...

Why does my drinking water look cloudy sometimes?

Once in a while you get a glass of water that looks cloudy; maybe milky is a better term. After a few seconds, it miraculously clears up! The cloudiness is due to tiny air bubbles in the water. Like any bubbles, the air rises to the top of the water and goes into the air, clearing up the water. The water in the pipes coming into your house might...

Where can I find information about my local drinking water supply?

The best way to learn about your local drinking water quality is to read the annual drinking water quality report/consumer confidence report that water suppliers now send out by July 1 of each year. The reports are often sent out with water bills, but they may be sent separately. The reports tell where drinking water comes from, what contaminants...

What can cause our water to have an earthy odor or to smell like rotten eggs?

Naturally-occurring organic compounds are created when plant material decays in lakes and reservoirs. Those organic compounds frequently cause musty, earthy odors, especially toward the end of summer. The odors can be objectionable, but generally are not harmful to health. However, odors can be caused by other constituents as well, so you might...

What can be causing our drinking water to have a reddish color?

Your water might be affected by iron, which is a commonly-occurring constituent of drinking water. Iron tends to add a rusty, reddish-brown (or sometimes yellow) color to water. If the color is more black than red, your water might contain a combination of iron and manganese. Both of these metals can cause staining of plumbing fixtures or laundry...
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Date published: December 7, 2017

The Quality of the Nation’s Groundwater: Progress on a National Survey

The U.S. Geological Survey is near the midpoint of a complex undertaking to survey the quality of the nation’s largest drinking-water resource.

Current website: https://www.usgs.gov/news/quality-nation-s-groundwater-progress-a-nation...

Date published: December 5, 2008

Man-Made Chemicals Found in Drinking Water at Low Levels

Low levels of certain man-made chemicals remain in public water supplies after being treated in selected community water facilities.  

Date published: September 5, 2007

Land-Use, Human Activity Impact Aquifers and Drinking Water Supplies

As populations increase around areas with public water-supply wells in the northern Tampa Bay region there are corresponding increases in contamination. According to a study by the U.S. Geological Survey (USGS), human activities are impacting ground-water resources.

Date published: June 28, 1999

Many Contaminants Found In Nation’s Streams, But Few Drinking-Water Standards Exceeded, USGS Report Shows

In a look at water-quality conditions of 20 of the country’s largest and most important river basins, the U.S. Geological Survey announced today (June 28, 1999) that streams in areas with significant agricultural or urban development almost always contain complex mixtures of nutrients and pesticides.

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Photo of a young girl drinking water, which likely originated from groundwater sources. 
January 17, 2017

A young girl drinks water, which likely originated from groundwater

A young girl drinks water, which likely originated from groundwater sources. 

The USGS is near the midpoint of a complex undertaking to survey the quality of the nation’s largest drinking-water resource. From 2012 – 2023, the USGS is assessing groundwater throughout the country through extensive sampling. The latest results from five regional aquifers are now

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Photo of a young girl drinking water, which likely originated from groundwater sources. 
January 17, 2017

A young girl drinks water, which likely originated from groundwater

A young girl drinks water, which likely originated from groundwater sources. 

The USGS is near the midpoint of a complex undertaking to survey the quality of the nation’s largest drinking-water resource. From 2012 – 2023, the USGS is assessing groundwater throughout the country through extensive sampling. The latest results from five regional aquifers are now

...
Drinking water from tap
December 31, 2016

Drinking water from tap

The quality of the water we drink can potentially impact our health. The USGS has several programs and cooperative projects that characterize the quality of selected rivers and aquifers used as sources of drinking water to community water systems in the United States.

Attribution: Water Resources
September 1, 2016

Drought, Drinking Water and Natural Environments

This short video is one of a series of four total shorts highlighting USGS water science in California's Delta region. The Sacramento-San Joaquin Delta is the hub of the state's water system. Water quality touches on all aspects of life. Teams of U.S. Geological Survey scientists along with their partners monitor water quality and identify sources of pollution and

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