What is a single source aquifer?
A Sole Source Aquifer (SSA) is an aquifer that has been designated by the United States Environmental Protection Agency (EPA) as the sole or principal source of drinking water for an area. By definition, SSA is an aquifer that supplies at least 50% of the drinking water consumed in the area overlying the aquifer.
What kinds of controls are in place to ensure the safety of our water?
To ensure that drinking water is safe, SDWA sets up multiple barriers against pollution. These barriers include: source water protection, treatment, distribution system integrity, and public information. Public water systems are responsible for ensuring that contaminants in tap water do not exceed the standards.
Where is an aquifer located?
The upper surface of this water-filled area, or “zone of saturation”, is called the water table. The saturated area beneath the water table is called an aquifer, and aquifers are huge storehouses of water.
How did the Safe Drinking Water Act of 1974 ensure clean water in the United States?
Which government agency regulates and monitors the safety of bottled water?
The Food and Drug Administration (FDA)
The Food and Drug Administration (FDA) and the Environmental Protection Agency (EPA) are both responsible for the safety of drinking water. EPA regulates public drinking water (tap water), while FDA regulates bottled drinking water.
Where are most aquifers in California located?
Central Valley of California
The Central Valley of California (fig. 71) contains the largest basin-fill aquifer system in Segment 1. The valley is in a structural trough about 400 miles long and from 20 to 70 miles wide and extends over more than 20,000 square miles.
What type of soil best makes up aquifers?
Unconsolidated materials like gravel, sand, and even silt make relatively good aquifers, as do rocks like sandstone. Other rocks can be good aquifers if they are well fractured.
Which of the following would make the best aquifer?
b) Sandstone would be the best aquifer. Sandstone is a sedimentary rock, comprised of sand-size grains of minerals and rocks, that can hold water….
What broke the Safe Drinking Water Act?
This is because: (1) the Safe Drinking Water Act was seriously weakened by 1996 Amendments that have made establishment of protective standards very unlikely; and (2) despite repeated promises to act, the Trump Administration has not even formally made the finding that drinking water standards are needed, much less …