The present invention belongs to the field of hydrology as it is a geoenvironmental monitoring probe (1) for monitoring wells (21), groundwater characterization and soil analysis that fully meets the current purge and low sampling standard. outflow (nbr 15,847 / 2010) and has additional characteristics. With compact mechanical design its total volume is reduced, both internally to the device and in its operating ways, requiring low purge volume and small disturbance at the subsurface sampled point, this compactness facilitates the well execution and provides a high degree of vertical insulation with direct impact on logistics and system security. Its features and functionality have been developed for optimal performance in logistics, operations and results, providing quality sampling, practicality and safety, fluid injection, installation depth measurements, piezometric level and recovery time. specifically, this invention has three distinct and complementary sessions; a track section (18) for surface operation of the system; a pumping session (19) for surface discharge of samples and injection of fluids from the surface and; a filtration session (20) for filtering the fluid to be sampled. In addition to the extra features, its compactness allows the installation of several units in the same well that configures a multilevel monitoring well. Even individually, this invention is presented as an alternative to conventional monitoring wells (no. 15.495-1 / 2007) due to its versatility and advantages.
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