Water Quality Monitoring

We offer systems for unattended, long-term monitoring of water quality that provide unmatched versatility and reliability. Our systems measure water quality in many natural and industrial environments including streams, watersheds, wells, caves, water/wastewater treatment plants, aquaculture operations, landfills, and processing plants. Key components of our systems include dataloggers, sensors, and communications peripherals, which are customized for each application.

Water Quality Sensors

Our sensors can measure a wide variety of water quality parameters, including turbidity, conductivity, pH, dissolved oxygen, chlorophyll, and more. We also have automated water samplers, which allow the water to be analyzed more thoroughly later. Water samplers can be triggered based on measured water conditions, or on a timer.

All of these systems can be customized to meet your needs.

Multiparameter Water Quality Sensors

OTT Hydrolab Multi-Parameter

Sensors for measuring temperature, depth, conductivity, salinity, conductance, pH, dissolved oxygen, turbidity, chloride, dissolved gas, and more.

OBS turbidity sensors

OBS Turbidity Sensors

Turbidity Sensors measure suspended solids in water and water clarity.

Portable Automated Water Sampler

Portable Automated Water Samplers

Automatic water samplers for storm water, waste water, or other water quality applications.

Dataloggers used in Water Quality Monitoring

Our dataloggers feature wide operating temperature ranges, low power consumption, and the ability to directly interface with a large variety of sensors. Because our dataloggers operate on rechargeable batteries (with solar panels), they are ideal for long-term, stand-alone operation, such as at remote streams or wells. Most of our dataloggers are expandable using multiplexers and other peripherals. Data are typically displayed and stored in the desired units of measure (e.g., specific conductance as mS/m, µS/cm, Ohms).

Powerful on-board instruction sets allow unattended control decisions based on time or conditional events. For example, if measured water quality levels are outside a predetermined range, the datalogger can actuate water samplers, sound alarms, open valves, actuate injectors, or make a phone call to report conditions. The dataloggers can easily provide the necessary water sampler control to meet EPA-mandated first-flush and follow-up sample schedules. All data is time-stamped and data from event-triggered samples is marked for later analysis.

Communications

The availability of multiple telecommunications and on-site options for retrieving data also allows systems to be customized to meet exact needs. Options include: voice-synthesized phone, telephone, cellphone, satellite, radio, ethernet, short haul, meteor burst, coaxial cable, and storage module. Systems can be programmed to send alarms or report site conditions by calling out to computers, phones, radios, or pagers. Real-time or historical data can be displayed or processed with Campbell Scientific software. Data can also be exported as ASCII files for further processing by spreadsheets, databases, or analysis programs.