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.

Ecological condition rating scores resulting from benthic macroinvertebrate surveys at North Fork Catoctin, Hillsboro site starting in Fall 2019. This site continuously received acceptable ratings until Spring 2024, when it received an unacceptable rating. No survey was conducted in Fall 2023 due to drought conditions. These surveys cannot detect bacterial pollution.