Phoenix gets its water from five main sources: the Colorado, Salt and Verde rivers, groundwater and reclaimed water. The vast majority comes from the rivers: the Salt and Verde contribute 52%, and ...

Globally, scientists estimate that roughly 2 billion people rely on water supplied from underground aquifers as their main source of freshwater. Groundwater is also used for farming, ...

Benzene in California groundwater occurs infrequently and is mainly from natural sources, study finds. ScienceDaily . Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2012 / 08 ...

Additionally, groundwater may not always be clean enough for human use. Human activities carried out on the surface, such as sewage disposal and the overuse of pesticides and fertilizers, including ...

Groundwater is one of the main sources of freshwater on Earth — it provides almost half of all drinking water, and about 40% of global irrigation. Person flies a drone into a deep fissure in ...

In Australia, groundwater is widely used as the main source of drinking water for many cities and towns. Lead author Dr Liza McDonough, ...

Some groundwater levels decreased 50 feet during that period — a massive drop given that the average depth to the water table is 41 feet, according to USGS water level data.

Groundwater supplies 90 percent of the nation’s drinking-water systems, ... State governments have traditionally been the main source of regulation for groundwater use.

No groundwater, no new homes, as Arizona severely restricts new housing Cities, developers will have to turn to costly sources to build new homes.

The Los Osos basin’s other main source of groundwater, an upper aquifer, also is in trouble due to high concentrations of nitrates. In order to preserve the future sustainability of the basin ...