NexSens turbidity buoys featured in Pollution Engineering

"Dredging the Ottawa" is on page 24 of this month's edition of Pollution Engineering. Click the image to read the magazine online.

A NexSens turbidity monitoring system was recently featured in the April 2011 edition of Pollution Engineering. The article, titled “Dredging The Ottawa,” details a project completed last year that successfully removed approximately 240,000 cubic yards of contaminated sediment from the Ottawa River, in a 5.5-mile stretch of the river near downtown Toledo, Ohio. (See the case study on the project here.)

Four NexSens data buoys with real-time cellular telemetry were used during the project to assist the environmental consulting firm Natural Resource Technology in monitoring levels of suspended sediment during dredging work. The buoys utilized optical turbidity sensors to help measure sediment levels.

With the NexSens buoys in place, project managers were able to ensure sediment re-suspension didn’t reach levels that would endanger human or aquatic health.

The project is similar to the 2006-07 cleanup of the Ashtabula River in Northeast Ohio, which also utilized NexSens monitoring buoys.

The Pollution Engineering article can be viewed here or seen in its print format (pages 24-36).