Difficult Run monitoring station in Great Falls, VA

In recent years, hundreds of millions of dollars have been invested into the implementation of Best Management Practices in Fairfax County, Virginia, with the goal of improving water quality. Research has demonstrated that best management practices are effective at smaller scales, but less information is available to document the effectiveness of these best management practices at the watershed...

Access the most recent data gathered from the Chesapeake Bay Nontidal Monitoring Network, learn about the techniques used to collect this data, and read about the history of the Chesapeake Bay Nontidal Monitoring Program. Nontidal Network (NTN) data refers to data from the 123 monitoring stations where nutrients and sediment are collected monthly and during storms. River Input Monitoring (RIM)...