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Product Support & Case Studies
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Groundwater Sampling Devices
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Groundwater Sampling Devices
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An Analysis of Low-Flow Ground Water Sampling Methodology
Discussion on ground water sampling from wells using low-flow sampling methodology. Arguments are presented to support slug or passive sampling from wells with relatively low hydraulic conductivity. Low-flow sampling is recommended to reduce accumulation of sediments in wells routinely sampled if drawdowns are minimal.
Compete Citation: Sevee, J.E., White, C.A and Maher, DJ, 2000. Ground Water Monitoring and Remediation. Spring 2000: 87-93
Performance testing of conventional and innovative downhole samplers and pumps for VOCs in a laboratory monitoring well. Baerg et al., 1992
This paper presents the results of an evaluation of several sampling devices in a controlled laboratory setting. Their evaluation includes small-diameter sampling devices including inertial pumps (aka Waterra® pumps), bailers, and peristaltic pumps. The authors evaluate the biases associated with volatilization and sorption of volatile organic compounds to sampling materials.
Complete citation: Baerg, D.F., R.C. Starr, J.A. Cherry, and D.A. Smyth. 1992. Performance testing of conventional and innovative downhole samplers and pumps for VOCs in a laboratory monitoring well. Paper presented at National Groundwater Sampling Symposium, November 30, 1992, in Washington, DC. Grundfos Pumps Corporation.
Low-Flow (Minimal Drawdown) Ground-Water Sampling Procedures
Examines issues of aquifer heterogeneit and colloidal transport with regard to groundwater sampling. Provides a list and discussion on issues to be addressed prior to and designing a groundwater monitoring program. Defines Low-Flow purging and provides a list of advantages and disadvantages.
Complete citation: Puls, R.W. and Barcelona, M.J. 1985. "Low-Flow (Minimal Drawdown) Ground-Water Sampling Procedures" EPA/540/5-95/504, December 1995. EPA Ground Water Issue.
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