Sleeve Samplers

Low Cost, No Purge Groundwater Sampler

These types of samplers are fast becoming a popular method for groundwater sampling on many Australian sites.

Sleeve samplers make groundwater sampling a simple, three-step operation that can be more effective than purging or low-flow sampling. The low-cost, disposable sleeve captures a core of water from any discrete interval in the screened portion of the well with no change in water level and minimal disturbance to the water column. The sleeve is sealed except during sample collection, then re-seals itself, assuring that a formation quality sample is recovered.

Independent laboratory testing confirms that sleeve samplers are PFC/PFAS-free, based on analysis for 28 different PFCs at extremely low detection limits.

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Description

These samplers are used in place of purging and low-flow sampling methods in groundwater monitoring wells to obtain a representative, real time, discrete interval sample of ALL compounds under natural groundwater flow conditions. They are effective for sampling low or high recharge wells, for monitoring interfaces, and for concentration profiling.

Simply lower the empty sampler to the desired interval, let the well return to undisturbed conditions, and pull the sampler through the sample zone. The sleeve seals itself when full, preventing overlying layers from entering and sampled contents from leaving the sampler.

A HDPE version is also available for sampling on PFAS sites.

Compared to Low-Flow Sampling:
WSP / Parsons Brinckerhoff have recently completed a study comparing results from low-flow groundwater sampling to those obtained from using these samplers. In summary the results were found to have an excellent correlation.
The study was recently presented at CleanUp 2015 in Melbourne by Claire Howell.

Download Presentation

There have also been numerous white papers written on this topic. If you would like to receive copies of some of these papers please email us.

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