Ground Water Quality

USGS Schematic
Nitrate Samples
Arsenic Samples
VOC Samples

Groundwater, which is in aquifers below the surface of the Earth, is one of the Nation's most important natural resources. Groundwater is the source of about 33 percent of the water that county and city water departments supply to households and businesses (public supply). It provides drinking water for more than 90 percent of the rural population who do not get their water delivered to them from a county/city water department or private water company. Even some major cities, such as San Antonio, Texas, rely solely on groundwater for all their needs. About 42 percent of the water used for irrigation comes from groundwater. Withdrawals of groundwater are expected to rise as the population increases and available sites for surface reservoirs become more limited. *USGS has provided 10 ways to protect and conserve groundwater!


  2. Reduce Chemical Use - Use fewer chemicals around your home and yard, and make sure to dispose of them properly - don't dump them on the ground!


  4. Don't Let It Run - Shut off the water when you brush your teeth or shaving, and don't let it run while waiting for it to get cold. Keep a pitcher of cold water in the fridge instead.

  5. Fix the Drip - Check all the faucets, fixtures, toilets, and taps in your home for leaks and fix them right away, or install water conserving models.



  8. Reduce, Reuse, and Recycle - Reduce the amount of "stuff" you use and reuse what you can. Recycle paper, plastic, cardboard, glass, aluminum and other materials.


  10. Learn and Do More! - Get involved in water education! Learn more about groundwater and share your knowledge with others.

Woman getting water from the shoreline to test