Introduction to Subsurface Groundwater Studies
Published:January 01, 1994
The most common and most useful method for determining whether or not groundwater is contaminated is to install permanent groundwater monitoring wells from which groundwater samples can be collected. This is called a "groundwater study". The goals, or steps, typically are to: 1. install and develop three or more monitoring wells at the site; 2. sample the groundwater in the wells; 3. have the samples analyzed for likely contaminants; 4. evaluate the analytical results and plot the distribution of contamination on a map; 5. determine the direction of groundwater flow by surveying the site to establishing the location and elevation of the measuring point on each well relative to a benchmark, and then measuring the depth to groundwater in each well; 6. use the results of steps 4 and 5 to determine the scope of contamination, the likely source of contamination, and whether or not additional monitoring wells are needed; and 7. devise an appropriate remedial strategy
Figures & Tables
Introduction to Environmental Hydrogeology
These notes have been written to supply supporting material for a “short course” introduction to environmental hydrogeology. The assumption is that most people who take the short course (or purchase the notes without taking the short course) will be geologists, although the information could be useful to engineers or other scientists who desire an introduction to environmental consulting in general, or hydrogeology in particular. The notes, and course, are an introduction – a partial survey - of some aspects of environmental geology, with particular reference to subsurface hydrogeology and remediation of sites contaminated with petroleum hydrocarbons. No claim of completeness is made. Regulatory programs vary from state to state. The regulatory framework used in the state of New York is sometimes given as an example. The reader should be aware that rules and procedures may differ in other states.