Aug 14, 2012

EXO Sondes Selected to Monitor Key Water Quality Interactions

Water sources along the Atlantic seaboard monitored and protected with some of the first EXO water quality instruments

YSI Inc. shipped and installed the new EXO sondes to customers at Charlotte-Mecklenburg Storm Water Services, North Carolina, the New York City Department of Environmental Protection (NYC DEP) and the University of New Hampshire in June.

Charlotte-Mecklenburg Storm Water Services continuously monitors North Carolina streams and rivers for pollution and run-off through its CMANN alert network. The organization has added EXO sondes for short-term pollution detection throughout Charlotte, N.C., and “we plan to upgrade 36 real-time water quality monitoring stations with EXO sondes for pollution detection and for the assessment of long-term water quality trends in the streams and drinking water reservoirs,” said Olivia Edwards, senior environmental specialist, Charlotte-Mecklenburg Storm Water Services Water Quality Program.

NYC DEP has been checking the water quality for more than 100 years. With 20 new EXO sondes, the organization will continue to measure the water quality of several important water bodies around New York City: New York Harbor, East River, Gowanus Canal (a Superfund site) and Jamaica Bay. These water bodies are used for recreation, commerce and wastewater discharge.

The sondes are installed with portable “job boxes” that contain DCPs and cellular modems transmitting the data real-time. Eventually, the data will be shared with the public and the network of sondes will expand. 

A network of aquatic monitors in New Hampshire tracks the complex interaction of water, land, and people over long periods of time, creating opportunities to address upcoming challenges to the ecosystem.

“We are using 10 EXO2 sondes in a network that evaluates the effect of land-use on ecosystem function across the state of New Hampshire. The EXO instruments are deployed in headwater streams and mainstem rivers in urban, agricultural and forested areas. The sensors provide fDOM, turbidity, conductivity, temperature, pH and dissolved oxygen data with high temporal resolution (every 15 minutes), aiding researchers and policy makers in assessing the impact of human activities on water quality,” explained Adam Baumann, senior lab technician at the University of New Hampshire Department of Natural Resources and the Environment.

 “We’re excited to bring this new, advanced platform to the water monitoring community,” says Tim Finegan, director of environmental monitoring at YSI. “We began the development of EXO by listening to user feedback and now we’re able to deliver a solution that meets a variety of water monitoring needs—including deeper depths; more rugged materials and design to extend deployment times; and streamlined calibration procedures to save users time.”

YSI booked more than $1 million in orders for the EXO instruments in the first three months of its launch this year.