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Sampling Bailers

A bailer is a portable grab sampler typically used for retrieving groundwater samples from monitoring wells. Bailers are sometimes used to purge groundwater wells prior to sampling, collecting profile samples of free product (hydrocarbons), well development, and bail-down tests to measure recharge rates.

Bailers are simple devices to use and are relatively inexpensive. Bailer samples are collected when the bailer is attached to bailing cord and lowered slowly and gently down the well until the top of the bailer is below the groundwater surface. The bailer is pulled up when the desired depth is reached, with the weight of the water closing the check valve. Point-source bailers use an additional check valve to prevent additional water from entering the bailer so that a sample can be collected at a specific point.

Geotech Disposable Geobailers

Geotech Disposable Geobailers

Biodegradable and heavy weight come standard with Geotech Disposable Geobailers. With many sizes, materials and optional accessories, you can order a bailer for a variety of well diameters or volumes. Disposable fluoropolymer bailers are available. Manufactured to comply with US EPA specifications and individually packaged to protect sample integrity.

Accessories for Geotech Disposable Bailers include a product sampler for floating hydrocarbons and a VOC sampler that uses a unique design that allows sample transfer to VOA vials with minimal loss of VOCs.


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Geotech Reusable Geobailers

Geotech Reusable Geobailers

Durable PVC and stainless steel bailers are rugged enough for well development and are easily decontaminated between wells, or can be dedicated to a given well.

Geotech Reusable Geobailers are available in many configurations to meet your specific sampling needs.


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Fluoropolymer Reusable Bailers

Fluoropolymer Reusable Bailers

The USGS and EPA recommends chemically inert fluoropolymer bailers for any type of groundwater sampling or purging with bailers. It is the material of choice when sampling for volatile organic compounds (VOCs). Fluoropolymer bailers are easy to decontaminate for re-use later. Our bailers are available with a complete set of interchangeable components, also made from fluoropolymer.


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Bailing Cord

Yellow Nylon Cord
Yellow Nylon
White Diamond Braid Nylon
White Diamond Braid Nylon
White Nylon Twine #15
White Nylon Twine #15
FEP Coated Stainless Steel Safety Cable
FEP Coated Stainless Steel Safety Cable

Geotech stocks a variety of cord and cable for suspending water sampling and purging bailers of any type or size.

Call 1.800.833.7958


Bailing Cord Specifications

Pressurized Bailer in Mongolia