Site Description: This site is located on a trail near Ashburn Park and is just before the confluence with Beaverdam Run proper in Ashburn. This is a benthic macroinvertebrate monitoring site (in partnership with Virginia Save Our Streams).
Certified Lead Monitor: Broad Run teacher Jen Dunn started conducting benthic monitoring at this site in the spring of 2024. Jen and Aimee Conrad have also been collecting Salt Watch data at this site. Youth Conservation Leadership Institute student Anthony Santos established the site in the fall of 2022.
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.
- Nitrate Watch Data: Click on the NITRATE WATCH link below the map, then scroll down to see nitrate levels.


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