A groundwater profile sampler

Hansen, Edward A.; Harris, Alfred Ray

doi:10.1029/wr010i002p00375

Cited by 18 publications

(5 citation statements)

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“…The samplers of Ronen et al (1987) and Hanson and Harris (1974) employ access tubes that run from the sampling location to the surface. Water samples are obtained through these tubes by vacuum.…”

Section: Other Mult!port Systemsmentioning

confidence: 99%

“…This is a problem because the water table on the Hanford Site is more than 30 ft below ground surface, except very near the Columbia River. Although Hanson and Harris (1974) suggested a check valve, similar to one reported by Wood (1973), that would allow sample collection from any depth, the volume of water obtained in this method is small, with long time intervals for sampling, and the system would be physically limited by the number of tubes in the casing (two tubes per monitoring zone). An update of the system by is available.…”

Section: Other Mult!port Systemsmentioning

confidence: 99%

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Evaluation of a multiport groundwater monitoring system

Gilmore¹,

Hall²,

Olsen³

et al. 1991

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In 1988 and 1989, Pacific Northwest Laboratory installed a multiport groundwater monitoring system in two wells on the Hanford Site: one near the 216-B-3 Pond in the center of the Hanford Site and one just north of the 300 Area near the Columbia River. The system was installed to provide the U.S. Department of Energy with needed three-dimensional data on the vertical distribution of contaminants and hydraulic heads on the Hanford Site.This study evaluates the ability of the multiport system to obtain hydrogeologic data at multiple points vertically in a single borehole, and addresses the representativeness of the data. Data collected from the two test wells indicate that the multipart system is well suited for groundwater monitoring networks requiring three-dimensionalcharacterization of the hydrogeologic system. A network of these systems could provide valuable information on the hydrogeologic environment. However, the advantages of the multipart system diminish when the system is applied to long-term monitoring networks (30+ years) and to deeper wells (<300ft). For shallow wells, the multipart system provides data in a cost-effective manner that would not be reasonably obtainable with the conventional methods currently in use at the Hanford Site.

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Section: Other Mult!port Systemsmentioning

confidence: 99%

Section: Other Mult!port Systemsmentioning

confidence: 99%

Evaluation of a multiport groundwater monitoring system

Gilmore¹,

Hall²,

Olsen³

et al. 1991

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“…The groundwater profile sampler consists of a series of sample probes spaced in sand-packed compartments in a 3-cm (14x-inch nominal) screened well point. Construction of the sampler is described in detail by Hansen and Harris [1974]. The original design used fiberglass-packed probes to filter out solids.…”

Section: Sampler Modificationmentioning

confidence: 99%

“…Typically, water samples are collected from an array of sample wells to define areal extent of solutes [Aulenbach et al, 1974]. To define vertical dispersion of solutes, multiple boreholes may be drilled to different depths at a single location [Walker et at., 1972;Kimmel and Braids, 1974] To overcome some of the problems of single-point and multiple-borehole sampling, we developed a groundwater profile sampler by using well points and extension screen for simultaneously collecting a set of groundwater samples in a vertical profile from a single borehole [Hansen and Harris, 1974]. Recently, Pickens et at.…”

mentioning

confidence: 99%

An improved technique for spatial sampling of solutes in shallow groundwater systems

Hansen¹,

Harris²

1980

Water Resources Research

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“…The method requires driving a probe, or well point, and therefore only unconsolidated material can be sampled. The maximum depth from which samples have been recovered is 27 m. Several water sampling methods with some similarities to this one have been reported [Wood, 1973;Hansen and Harris, 1974;Yare, 1975;Pickens et al, 1978]. Most of these are best suited for groundwater monitoring over long periods of time or they require a drill rig.…”

Section: Introductionmentioning

confidence: 99%

A probe method for soil water sampling and subsurface measurements

Harrison¹,

Osterkamp²

1981

Water Resources Research

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A technique employing lightweight driving and sampling equipment to obtain interstitial soil water samples is described. It can also be used for hydraulic conductivity, temperature, and water pressure measurements. The sampler consists of a probe, with a shield, a porous metal filter and a check valve which are connected to the surface by plastic tubing inside standard EW or A drill rod. The water sample is collected with a bailer lowered inside the tubing from the surface. The tubing can then be cleared and sealed without pulling the drill rod and the sampler driven to the next depth. A method of estimating the probe shape factor is given. Some of the difficulties unique to sampling interstitial water in thawed subsea permafrost are discussed.

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A groundwater profile sampler

Abstract: A series of fiber glass probes spaced in sand‐packed compartments in a screened well point permits the collection of a number of discrete groundwater samples from predetermined depths in a single borehole.

Cited by 18 publications

References 1 publication

Evaluation of a multiport groundwater monitoring system

Evaluation of a multiport groundwater monitoring system

An improved technique for spatial sampling of solutes in shallow groundwater systems

A probe method for soil water sampling and subsurface measurements

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