Wellfield Monitoring System


Groundwater drawn from wellfields accounts for a significant portion of drinking water supplies throughout the world. Despite being located underground, wellfield water supplies are not exempt from threats. Real-time wellfield monitoring systems can provide valuable data to assist water managers in detecting contamination and avoiding excessive drawdown or other potential issues.

Wellfield Monitoring

While only two wells in an aquifer can classify as a wellfield, some wellfields contain dozens or upwards of 100+ wells spread throughout a watershed. Close management of these resources is critical to maintain water supply for a growing population and protect infrastructure.
Drawdown particularly in confined aquifers can present supply issues if water levels and recharge rates are not closely monitored.
Even in unconfined aquifers in regions with significant precipitation, artificial recharge ponds may still be necessary to avoid excessive drawdown.
Point-source pollution from industrial facilities or other sources can potentially seep into groundwater and make drinking water unsuitable for consumption.
Early detection of contamination can result in more effective mitigation by avoiding spread to surrounding wells and reducing overall costs.
Excessive pumping in near-coastal wellfields can lead to saltwater intrusion and adversely affect both drinking water quality and pumping machinery.
Besides drinking water supply, wellfields are important resources for irrigation in many agricultural regions.

Typical Wellfield Monitoring System

Wellfield monitoring systems typically consist of a network of sensors installed throughout an aquifer. Water level is the most basic parameter recorded, but systems can readily be expanded with water quality and weather sensors to provide a more comprehensive overview of conditions at wellfield sites.

The X3 data logger is the central component of NexSens wellfield monitoring systems. It is compatible with a range of sensor types from industry-leading manufacturers and transmits real-time data via radio, cellular, or satellite telemetry to the WQData LIVE web datacenter. WQData LIVE features a suite of data management tools including configurable email or SMS text message alerts when critical thresholds are exceeded.

Flexible mounting options for the X3 simplify installation in the field, and SP-series solar power packs deliver power for continuous operation. Waterproof UW sensor port connectors and automatic sensor detection facilitate efficient system start-up.

Sensors typically integrated into NexSens wellfield monitoring systems for water level monitoring include pressure transducers like the Seametrics PT12. Water quality sensors such as multiparameter sondes can also integrate level sensors alongside conductivity sensors, nutrient ISEs and other sensor types . Weather sensors such as tipping bucket rain gauges may also be integrated to track present conditions and develop correlations between precipitation and groundwater levels.

Contact a NexSens Applications Engineer today to discuss your wellfield monitoring application.

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