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dc.contributor.authorLewis, Matthew
dc.date.accessioned2016-06-13T23:01:31Z
dc.date.available2016-06-13T23:01:31Z
dc.date.issued2013-12
dc.identifier.urihttp://hdl.handle.net/1773/36237
dc.description.abstractTwo different slug test field methods are conducted in wells completed in a Puget Lowland aquifer and are examined for systematic error resulting from water column displacement techniques. Slug tests using the standard slug rod and the pneumatic method were repeated on the same wells and hydraulic conductivity estimates were calculated according to Bouwer & Rice and Hvorslev before using a non-parametric statistical test for analysis. Practical considerations of performing the tests in real life settings are also considered in the method comparison. Statistical analysis indicates that the slug rod method results in up to 90% larger hydraulic conductivity values than the pneumatic method, with at least a 95% certainty that the error is method related. This confirms the existence of a slug-rod bias in a real world scenario which has previously been demonstrated by others in synthetic aquifers. In addition to more accurate values, the pneumatic method requires less field labor, less decontamination, and provides the ability to control the magnitudes of the initial displacement, making it the superior slug test procedure.en_US
dc.language.isoen_USen_US
dc.relation.ispartofseriesMESSAGe Technical Report;004
dc.subjecthydrogeology
dc.subjectglacial deposits
dc.titleA Comparative Analysis of Two Slug Test Methods in Puget Lowland Glacio-Fluvial Sediments near Coupeville, WAen_US
dc.typeTechnical Reporten_US


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