06/28/2010
Digital Water Level and Water Quality parameter measurement devices are being used increasingly to: Spot changes quickly
Identify & record trends
Improve data continuity for modeling
Reduce field cost through automation or semi-automation
Reduce the number of sampling events
Notify or alarm or control equipment operation on event occurrence
Backup and verify event history In the past several years Pressure Transducers, pH, Conductivity, and DO sensors have become digital devices that can be user configured to perform and record to specific project and user needs. Some devices, such as the INW AquiStar® Smart Sensors use current technology which allows them to operate as remote, stand-alone devices or they can easily network to provide a comprehensive data picture of anything from a single well to a large and complex site to multiple sites. Taking a cue from the consumer products communication revolution, we are now able to inexpensively communicate with sensors and deployed data-loggers, from our office desktop, from home, or even (ugh) a vacation spot via phone, wireless device, or internet. Data Services can make the use of sensors even easier by providing downloaded data from the site(s) directly to an ftp or website where it can be accessed and used with everyday tools and software by the consultant. The value of continuous data cannot be exaggerated. Even when technicians make regular quarterly visits and record water levels, for example, there can be a wealth of information missed in the interim that could affect reaching project objectives. A rain event between to quarterly readings can change groundwater flow directions and /or rates, influence related aquifers, or change contaminant concentrations that might go unnoticed without a regular view into the ongoing events.