Subject to accidental spills, combined sewer overflows, and pollution from industrial sites, the White River requires constant monitoring to protect public health. Given the number of fish kills reported on the river in recent years, it was crucial to maximize the effectiveness of water quality monitoring efforts.

The City of Indianapolis needed to create a system that could quickly retrieve water quality data from various points around the city and analyze it for possible signs of contamination. Officials chose a NexSens real-time data collection network that provides personnel with up-to-the-hour water quality data from multiple sites along the river.

Keeping tabs on the White River

YSI multi-parameter sondes monitor temperature, conductivity, dissolved oxygen, pH, ORP, and turbidity. Data from all sites is transmitted to a centralized computer via cellular modems on NexSens data loggers.

NexSens software stores data in a secure database and automatically posts real-time updates to a local network drive for easy viewing by city personnel. The software also automatically generates custom reports at set intervals, which simplifies data management and review. For immediate spill detection, alarms are set up to send emails or mobile alerts when parameters exceed their acceptable ranges.

With continuous, real-time data from NexSens data loggers and software, the city can quickly respond to water quality impairments, identify contamination sources, and improve data quality — all while saving time and money.


NexSens CB-450 Data Buoy

The NexSens CB-450 Data Buoy is designed for deployment in lakes, rivers, coastal waters, harbors, estuaries and other freshwater or marine environments.

X2 Environmental Data Logger

The NexSens X2 Environmental Data Logger offers the latest in real-time monitoring technology with wireless communication, large plug-and-play sensor library, and ultra-low power consumption.

YSI EXO3 Multi-Parameter Water Quality Sonde

The YSI EXO3 is a purpose-built sonde for monitoring major water quality parameters, including: pH, conductivity, temperature, turbidity and dissolved oxygen.

NexSens WQData LIVE Web Datacenter

WQData LIVE is a web-based project management service that allows users 24/7 instant access to data collected from remote telemetry systems.