EPOC has in place an agreement with Ram’s Horn Educational, LLC (RHE) who provides a percentage of online course registration to the EPOC scholarship fund. RHE has three courses online on their Virtual Ground Water Academy website authored by Dr. Gary Robbins. The courses have been approved for 4 continuing education credits in CT, NY, NJ, MA and DE. Each course uses simulations to provide “hand-on” practical training. Here is a brief summary of each.
Slug Test Course
Slug testing of monitoring wells has become the most common means of determining hydraulic conductivity at contamination sites. In this course through the use of a slide presentation and simulations, you will learn how to properly conduct and analyze slug tests. The course stresses the use of slug testing in formations having lower conductivity (<0.005 cm/s) where response is overdamped. Material covered includes how to perform slug in, slug out and displacement tests. You will be provided guidance on how to match well geometries to the appropriate models for analysis. Also, the courses covers equipment needs, how to develop wells, and when slug tests are and are not appropriate.
Pneumatic Slug Testing
Pneumatic slug testing entails using air pressure or vacuum in the well headspace to instantaneously change the water level to perform a slug test. It is particularly useful in wells installed in formations that have high permeability. Such wells have very rapid response times on the order of seconds and may exhibit oscillatory inertial response. These conditions preclude the use of conventional slug testing for determining the hydraulic conductivity.
Determining Hydraulic Conductivity While Low Flow Sampling
Slug testing of monitoring wells has become the most common means of determining hydraulic conductivity at contamination sites. However, slug testing can be problematic when wells are screened across the water table because of backfill zone drainage or in high permeable formations that exhibit rapid recovery and oscillatory response. They also require an additional phase of investigation. In this course you will learn how to determine hydraulic conductivity from the steady state drawdown and discharge achieved while low flow sampling.