In a time when demand for water is growing in many areas, groundwater monitoring—of both quantity and quality—has become a necessity.
Typically, groundwater monitoring involves drilling a well to access the aquifer. Sensors are then lowered into the well to measure the level or quality of the water at that location.
Short-term tests are used to characterize the effect of water pumping removal on surrounding wells pump or aquifer test or on the single well from which the water is removed slug test. Long-term, continuous monitoring helps determine the effects of climate, development, and other factors on water quality and level.
Leveloggers In The Field?
Campbell Scientific dataloggers have often been used for pump and slug tests. In recent years, improvements in both hardware and software have made groundwater monitoring even easier.
In the past, pump tests with multiple observation wells required hundreds of feet of cable, resulting in high material and labor costs. Today, wireless dataloggers eliminate cables, as well as provide synchronized measurements from all wells to a single base station.
This improved networking between dataloggers also simplifies testing or monitoring projects that involve multiple sites over large areas. Additionally, real-time data retrieval and Internet technologies make it possible to post data directly to the Internet.
Our new CS Pressure Transducer represents another advancement that will benefit groundwater monitoring. By offering our own pressure transducer we are able to offer a high-quality instrument with shorter lead times for ordering and recalibration. One example of how some of our newer products are benefitting groundwater applications involves the Sparta Aquifer in southern Arkansas and northern Louisiana.
The Sparta Aquifer provides the majority of the water used for industrial and municipal purposes in Union County, Arkansas. Use of the aquifer began in the early s and has increased over the years as development in the area increased.
By the late s, so much water had been removed from the aquifer that in some areas water level was down ft. In addition, water quality in some areas had deteriorated. A number of different sampling devices and their applicability are presented. Traditionally, to ensure sample representivity the removal of stagnant water from a monitoring well was accomplished by purging a fixed number of well volumes, generally between three to five volumes, prior to sample collection.
State of Delaware - Topics - Delaware's Water Quality - Groundwater Monitoring
The merits of different purge methodologies are discussed. On-site water quality measurements are carried out predominantly to monitor effective purging of water at the sampling point before sample collection, and to measure unstable parameters that cannot be subsequently reliably determined in the laboratory.
Techniques for the preservation and analysis of samples and quality assurance and quality control are also presented. More statistics for this item Home About Browse Search Statistics. Contaminated groundwater sampling and quality control of water analyses. Before downloading, please read NORA policies.