Site Description: The North Fork of the Catoctin Creek feeds into Catoctin Creek, which is a tributary of the Potomac River. This site is located approximately one mile upstream of the Route 9 and Route 287 intersection between Purcellville and Wheatland. Loudoun Wildlife selected this site (and another site located approximately two thirds of a mile downstream of the intersection) to monitor changes in water quality before, during, and after a roundabout project that is scheduled for construction at this intersection.
Certified Lead Monitor: Amy Ulland started conducting benthic macroinvertebrate monitoring at this site in the fall of 2021.
Ecological condition rating scores resulting from benthic macroinvertebrate surveys at N Fork Catoctin Creek, Upstream starting Fall 2021. This site initially received acceptable ratings, then received indeterminate ratings, and most recently received an unacceptable rating Spring 2024. These surveys cannot detect bacterial pollution.