The Environmental Protection Agency (EPA) introduced a low flow sampling and purging technology in 1996, which is still frequently used and accepted today. The primary goal of low flow sampling is to cleanse and sample wells at rates comparable to ambient groundwater flow, reducing water level drawdown and stagnant water mixing within the good casing. This approach also minimizes sample turbidity, which can create bias and "false positives." Earlier to the release of the EPA's Low Flow Sampling Procedures, groundwater sampling was primarily done using a volume average method that used bailers or pumps to swiftly and efficiently extract significant quantities of water from the good casing. The sampling procedure begins with a purge of stagnant water in the well, followed by the collection of samples. The turbidity and other properties of the stagnant water are measured as it is pulled up. The monitoring data informs the environmental technician when the water has transit...