Principal Aquifers of the United States

Principal Aquifers of the United States

This principal aquifers map is available for download as a wall-map-sized PDF (14.4 MB), a printable PDF (1.7 MB), or available for purchase from the USGS Store.

An aquifer is a geologic formation, a group of formations, or a part of a formation that contains sufficient saturated permeable material to yield significant quantities of water to wells and springs. The areal and vertical location of major aquifers is fundamental to … [more…]

From sewage to oasis: Female duo create Johannesburg green corridor

photo: woman looking over polluted river

Merging art, science and activism, two women are on a mission to save one of the city’s biggest and most polluted rivers

  • One of Johannesburg’s largest rivers is full of toxins from sewage flow
  • Two women are merging science and art to tackle river pollution
  • The project is creating jobs and environmental awareness

By Kim Harrisberg JOHANNESBURG, Feb 18 (Thomson Reuters Foundation)

A river filled with sewage, broken TVs, dead … [more…]

Colorado basin drought sparks water limits at huge US reservoir

Colorado basin drought sparks water limits at huge US reservoir

The level of Lake Mead – as seen in July 2021 from Boulder City, Nevada – has been steadily declining due to a chronic drought.

A huge reservoir that supplies water to tens of millions of people in the Western United States is at such low levels that populations it feeds must reduce their usage next year, the government said Monday.

A chronic drought has left huge swathes of the … [more…]

Environmental group: Iowa’s waterway cleanup plan could take 22,000 years

Environmental group: Iowa’s waterway cleanup plan could take 22,000 years

The Iowa Environmental Council is working to improve water quality in Iowa’s lakes, including West Okoboji Lake, shown here. (Photo by Perry Beeman/Iowa Capital Dispatch)

Iowa’s work to clean polluted waterways is so slow it will take as much as 22,000 years to meet some of the goals in the state’s voluntary plan, the Iowa Environmental Council reported.

The nonprofit’s latest review of the state’s Nutrient Reduction Strategy — the

[more…]

Forests Near or Far Can Protect Water for Cities

Forests Near or Far Can Protect Water for Cities

Near or far, forests — like this one at the edge of Hong Kong — affect the movement, quality and availability of water in cities. Photo by Florian Wehde/Unsplash

Water is essential to human health and well-being. In cities, leaders strive to provide secure access to clean, safe and affordable water. In rural areas, farmers hope for adequate rain and healthy rivers to produce healthy crops. The coronavirus pandemic reminds … [more…]