Water-Quality Changes in the Nation's Streams and Rivers

Interactive Water Quality Map Brings Together 40 Years of Water-Quality Data

Detailed Description

This mapper provides results from the largest-ever assessment of water-quality changes in the Nation's streams and rivers. More than 185 million water-quality records from over 600 Federal, State, Tribal, and local organizations were screened as part of this assessment. 


Image Dimensions: 3300 x 2550

Date Taken:

Location Taken: US