Surface and Groundwater Monitoring

Surface water can be affected by land use, agricultural practices, pollution and climate change. As you already know, monitoring and treatment of surface water requires significant investments in time and money. These investments and public health may be jeopardized if surface water changes during extreme events or contamination.

SonTek and other Xylem instruments work to provide a continuous and comprehensive record of water quantity and quality. Our instruments provide the reliable data you need to act quickly, work efficiently and reduce costs.

We understand the challenges of working in natural environments. Our systems play a key role in improving water quality and plant efficiency, while allowing for early warning and rapid response to events such as floods and algal blooms.

NEW: Evolution of Water Quality Monitoring eBook (25MB PDF)

The Evolution of Water Quality Monitoring

SonTek Products

FlowTracker2 Handheld ADV

FlowTracker2® Handheld-ADV®

Wading Discharge Measurement Instrument

FlowTracker2 with optional pressure sensor for depth data  Now with optional pressure sensor feature! The new FlowTracker2 (FT2) handheld Acoustic Doppler Velocimeter (ADV®) has all the technology you have grown to know and trust with the original FlowTracker, but now comes with functional, modernized features   (Bluetooth, GPS and large color screen, to name only a few) based on the evaluation and feedback from hydrologists, researchers and scientists who have made the FlowTracker their instrument of choice.

 But the real power becomes clear from the moment you start to collect data. Each step of the way FT2 guides you along the measurement process with visual prompts and SmartQC audio alerts just in case something important needs your attention.

 FT2 handheld software is intuitive, easy to navigate and includes real-time plots of point data, QC parameters, and measurement verticals, giving you everything you need at-a-glance.  Get defensible data correctly, the first time, every time, and minimize data handling back at the office.

With rugged construction for any climate and multiple display options for both day and night, FT2 goes whenever and wherever you need it to go.

SonTek-SL Series

SonTek®-SL Series

Inspired by the need for a simple way to measure water velocity and level in open channels

NEW SL1500/3000 3G MODELS! Inspired by the need for a SIMPLE way to measure water velocity and level in open channels, the SonTek-SL (affectionately known as the Side-Looker or "SL") has earned worldwide acceptance as a long-term monitoring solution. Now, with two new (3G) models turbo-charged by our proprietary SmartPulseHD®, the SonTek-SL features  accessories, mounting options, software, and a variety of integration formats to ensure it fits your application. [View online webinar - Recorded version]

Designed specifically for side mounting on bridges, canal walls, or riverbanks, the SL's SLEEK, low-profile housing makes installation easy.  With three models to choose from, the SL can be used in channels as small as you can jump across to rivers as wide as the Amazon. Ultra narrow beam widths combined with unmatched side lobe suppression provide the SUPERIOR acoustic directivity necessary for achieving maximum horizontal range free of interference from surface or bottom boundaries.

RiverSurveyor M9 & S5

RiverSurveyor® S5 and M9

A new perspective to the notion of measuring open channel hydraulics

4.0 is HERE! This is some pretty big news for RiverSurveyor-M9 users, and those that want to be! RiverSurveyor Live 4.0 software release is set for November, and we thought you might want to know about some of the big benefits coming your way:

  • No tagline/tape measure required: With RiverSurveyor Stationary Live, automatically measure distance between stations with DGPS or RTK GPS equipped systems.
  • Manual configuration: Now you can set blanking distance, cell size and number of cells for moving boat measurements.
  • Real-time QA/QC warnings: Know when there could be a problem before there is one.
  • Zipped files: New and improved compression and auto-decompression, providing faster access to large amounts of data.
  • Sample filter: Remove your random velocity outliers with ease!

The patented and award-winning RiverSurveyor®, S5/M9 systems give a new perspective to the notion of measuring open channel hydraulics. Using SonTek's exclusive SmartPulseHD®, multiple acoustic frequencies are fused with precise bandwidth control for the most robust and continuous shallow-to-deep discharge measurements ever. A deterministic microcontroller expertly apportions the proper acoustics, pulse scheme, and cell size to get the highest definition possible so you can focus on the measurement, not the instrument setup. The system even has a vertical beam for precise channel definition and it's all designed to work intuitively.

And just like the name implies - SmartPulseHD (just like your TV) lets you see the clearest velocity picture possible with cell sizes down to 2 cm.

SonTek-IQ series

SonTek-IQ® Series

Ideal for monitoring flows in canals, culverts, pipes, and natural streams

Ideal for monitoring flows in canals, culverts, pipes, and natural streams, the SonTek-IQ starts with a custom flow algorithm derived from hundreds of field measurements. Four velocity beams profile water velocity in 3-D - both vertically and horizontally - ensuring complete coverage of the velocity field. The built-in pressure sensor and vertical acoustic beam work in tandem to measure water level. Simply input the channel geometry using the intuitive SonTek-IQ software and you are outputting flow data in minutes.

NEW! All stainless steel hardware makes the IQ even more capable in difficult environments such as stormwater and certain wastewater where corrosion is a potential concern.

Other Xylem Brands

EXO 2

YSI EXO 2

Multiparameter 6-port water quality sonde with anti-fouling wiper

The EXO advanced water quality monitoring platform includes the versatile multiparameter EXO2 sonde for oceanographic, estuarine, or surface water applications. Smart Sondes and sensors allows the user to automatically configure a sonde with different sensor for different applications in minutes.

WaterLOG Storm 3 Data Logger

WaterLOG Storm 3 Data Logger

Basic to complex communication and I/O solutions.

The Storm 3 has emerged faster, smarter and more specifically designed for today's technological advances while maintaining simplicity and ease of use. The Storm 3 is our mid-range data logger with an ideal cost-to-performance ratio. The Storm 3 incorporates a balanced set of inputs for analog, digital I/O and SDI-12 smart sensors to allow communication through cellular modems and GOES satellite. You'll love how easy it is to configure and collect data using the browser-based graphical user interface (GUI) with all standard web browsers on PCs, tablets and smart phones. You can also view your password-protected and public data anywhere with internet access using our cloud hosted data solution Storm Central.

YSI IQ SensorNet 2020 XT

YSI IQ SensorNet 2020 XT

Improve Operational Efficiency with Continuous Data

The YSI IQ SensorNet 2020 XT is a modular water quality system for a complete sensor network ideal for various installation needs. The modular system can accept additional sensors easily at any time. This is a powerful system to continuously measure water quality parameters anywhere in a facility for process control. Immediate benefits include better network visibility and management, early detection of network failures, improved compliance with regulatory targets and cost savings (energy, pump/blower maintenance, labor).

YSI Integrated Systems Bay Buoy

YSI Integrated Systems Bay Buoy

Designed for long-term water quality monitoring in surface water

The bay buoy is a medium-sized platform suitable for lakes, rivers and coastal applications.  It is designed around logging, sensors, and remote telemetry.  The bay buoy platform will deliver data for years, making it suitable for research and long-term monitoring applications.