Site Description: The North Fork of the Catoctin Creek is a tributary of the main Catoctin Creek, which flows into the Potomac. This site is located just to the west of Hillsboro.
Certified Lead Monitor: Emma Lloyd started conducting benthic macroinvertebrate monitoring and sodium chloride monitoring at this site in the fall of 2019 at the age of 11.
Stream Monitoring Data
Explore comprehensive results for this location via the Clean Water Hub site page.
- Benthic Macroinvertebrate Data: Click on the VA SOS/CMC ROCKY BOTTOM link below the map, then scroll down to see the data.
- Salt Watch Data: Click on the SALT WATCH link below the map, then scroll down to see chloride levels.


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