Project Overview

lake erie tributary monitoringThe western basin of Lake Erie gets a lot of attention thanks to its role in large algal blooms, but it is not the only part of the lake affected by nutrient runoff. And there are organizations all around Lake Erie that work to manage runoff going into different basins of the lake.

One of those is the Northeast Ohio Regional Sewer District, which maintains multiple water quality monitoring stations along creeks and rivers that flow into Lake Erie’s waters near Cleveland. These waters cover mostly the lake’s central basin.

Though Erie’s central basin is deeper than the western one and not as prone to harmful algae, tracking nutrients there are still important for mitigating total nutrients that make their way into the lake. Even though there might not be large-scale blooms in the central basin, nutrients that enter there could contribute to blooms elsewhere.

System Description

lake erie tributary monitoring NEORSDProject managers with the Northeast Ohio Regional Sewer District worked with NexSens Technology to source equipment for a monitoring site along one Lake Erie tributary that they work on. It joined other similar stations using NexSens gear that are set up throughout the district along Rocky River, Big Creek and West Creek.

A NexSens 3100-OEM Data Logger was chosen for the Lake Erie tributary monitoring site because adding it and its data to the network would be easy. In addition, the logger comes with integrated cellular telemetry that is reliable for data transmission in the area.

The logger is stationed in a spot near to the stream of interest and powered by solar panels. Connected to the logger is a YSI EXO2 Multi-Parameter Water Quality Sonde that is deployed in the stream and equipped with sensors for measuring water temperature, conductivity, pH, turbidity and total algae.

Measurements from the sonde are recorded by the data logger at project-defined intervals. The data are then transmitted via cellular network to project managers at the Northeast Ohio Regional Sewer District who view them in real time through a NexSens WQData LIVE web datacenter.


NexSens OEM Data Logger

The NexSens OEM data loggers offer all the data logging capability of the popular iSIC data logger in a compact enclosure.

YSI EXO2 Multi-Parameter Water Quality Sonde

The YSI EXO represents the next generation of water quality instruments from YSI. The EXO2 sonde includes six sensor ports and a central anti-fouling wiper option.

NexSens WQData LIVE Web Datacenter

WQData LIVE is a secure web datacenter providing an online interface for viewing environmental data. It offers 24/7 instant access to project data using any web browser.