USGS scientist tests groundwater samples for water quality.
By Communications and Publishing
2015 (approx.)
Detailed Description
USGS scientist tests groundwater samples for water quality.
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 available.