SYMPOSIA PAPER Published: 01 January 1988
STP44865S

Field Evaluation of Seven Sampling Devices for Purgeable Organic Compounds in Ground Water

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Seven different sampling devices—(1) a bladder pump, (2) a helical-rotor submersible pump, (3) a gear submersible pump, (4) an open bailer, (5) a point-source bailer, (6) a syringe sampler, and (7) a peristaltic pump—were evaluated to determine their ability to recover purgeable organic compounds (POCs) from ground water under field conditions. Significant differences among the mean concentrations obtained with each sampler were found for selected POCs at each of three sites. The overall order of the sampling devices from highest to lowest recovery using data from all three sites yielded the following: (1) gear submersible pump, (2) point-source bailer, (3) open bailer, (4) helical-rotor submersible pump, (5) bladder pump, (6) syringe sampler, and (7) peristaltic pump. The overall standardized mean concentrations of Samplers 1 through 5 were closely grouped, indicating these devices were very similar in their ability to recover POCs. A similar overall order of the coefficients of variation indicated no clear difference between the sampling devices in the precision with which they recovered POCs. However, the three samplers with the lowest coefficients of variation (highest precision) were all positive-displacement pumping devices whereas the three samplers with the highest coefficients of variation (lowest precision) were all grab-sampling devices.

Author Information

Imbrigiotta, TE
U.S. Geological Survey, West Trenton, NJ
Gibs, J
U.S. Geological Survey, West Trenton, NJ
Fusillo, TV
U.S. Geological Survey, West Trenton, NJ
Kish, GR
U.S. Geological Survey, West Trenton, NJ
Hochreiter, JJ
U.S. Geological Survey, West Trenton, NJ
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Details
Developed by Committee: D19
Pages: 258–273
DOI: 10.1520/STP44865S
ISBN-EB: 978-0-8031-5037-9
ISBN-13: 978-0-8031-0968-1