Go to Home Page
Go to Home Page
Environmental Planning
Planning Department
Carrboro Home
Search Site
Planning Division
Zoning Division
Inspections Division
Planning Documents
Downtown Visioning
Town Manager
Town Clerk
Recreation & Parks
Economic Development
Public Works
Police Department
Fire-Rescue Department
Finance & Budget
Human Resources
Planning - Environment
Surface Water

Bolin Creek Monitoring

Conducting benthic macroinvertebrate surveys, or “bug pickin’,” is an excellent method for evaluating a stream’s water quality. A benthic macroinvertebrate survey is the collection, by a number of different methods, of animals lacking internal skeletons which live on or near the bottom of a waterbody. These “bugs” include crawfish, mayflies, nymphs, worms, snails, etc. Unlike chemical or physical parameters which indicate a snapshot of stream conditions, the number and diversity of benthic organisms is a better indicator of a stream’s ongoing water quality. Because the benthics are relatively immobile, the distribution of more or less sensitive organisms in a particular location is closely correlated with the water quality they experience there.

The Town has contracted with an environmental consultant for benthic sampling in Bolin Creek since 2001. The monitoring was initiated to provide documentation of stream health and water quality variability. During the first year, sampling events were conducted quarterly; in subsequent years the surveys have been conducted annually. Over this period, most of the sampling events have been conducted in four locations, providing an opportunity to analyze changes at each site over time. A map of the sampling locations is available below.


Ph 919-918-7326
Fx 919-918-4454
Carrboro Town Hall, 301 W. Main St., 27510
Mail to Webmaster