What does a slug test tell you?
A slug test is a controlled field experiment performed by groundwater hydrologists to estimate the hydraulic properties of aquifers and aquitards in which the water level in a control well is caused to change suddenly (rise or fall) and the subsequent water-level response (displacement or change from static) is …
What is an Overdamped slug test?
Overdamped slug tests typically occur in aquifers of low to moderate hydraulic conductivity (K) and exhibit the type of response depicted in Figure 2. Figure 2. Data from a typical overdamped falling-head slug test in an unconfined aquifer with fully submerged well screen (data from Batu 1998).
What is the purpose of pumping test?
A pumping test is a field experiment in which a well is pumped at a controlled rate and water-level response (drawdown) is measured in one or more surrounding observation wells and optionally in the pumped well (control well) itself; response data from pumping tests are used to estimate the hydraulic properties of …
What is bail down test?
Baildown testing is one method to measure LNAPL transmissivity. Detailed procedures to conduct and analyze baildown testing are provided in ASTM E-2856(2013). API sponsored development of this short (14 minute) training video discussing procedures to conduct a successful baildown test for unconfined LNAPL.
How do you carry out a slug test?
A slug test involves the instantaneous injection or withdrawal of a volume or slug of water or solid cylinder of known volume. This is accomplished by displacing a known volume of water from a well and measuring the artificial fluctuation of the groundwater level.
What is transmissivity in hydrogeology?
Transmissivity describes the ability of the aquifer to transmit groundwater throughout its entire saturated thickness (Figure 7). Transmissivity is measured as the rate at which groundwater can flow through an aquifer section of unit width under a unit hydraulic gradient.
What is packer testing?
Packer testing is a technique in which one or more inflatable bladders, or packers, are used to isolate different regions of a borehole for hydraulic testing or water sampling. This webinar will introduce appropriate approaches, methods, and equipment for borehole packer testing applied to hydrogeologic projects.
What is Slug water?
A slug discharge is any discharge including an accidental spill which has the potential to cause interference or pass through of a POTW.