Everybody can easily see the most common kind of pollution of the environment done by indiscriminate and unregulated dumping of urban refusal of any kind, we can also, without effort,  observe the visual effects of water pollution in rivers, lakes and the sea-coast areas, even at the early stages of pollution:  it is instead difficult if not totally improbable to be able to observe in a casual way the damage done to water table/aquifer by the introduction of harmful substances or products into the ground.

The contamination of the water table/aquifer is an insidious type of pollution.

Here the use of the word  “insidious” is neither done by chance or for drama , but to emphasize the fact that contamination of the underground waters has become a worldwide (man-made) calamity because it happens over time, slowly, generally  undetected.

The most common cases of aquifer contamination   are   produced by the combination of indiscriminate  dumping of wastes of any kind or industrial by-products toxic or potentially toxic, with rainwater or surface waters , resulting into the production of toxic lechates percolating into the aquifers.

Generally when the pollution, contamination or poisoning of water table are detected , it is because the damage to the aquifers is already so great that the effects of water contamination have been taking a toll on  public health and the only  available solution is finding alternative sources of fresh water, (with the complication that natural alternative sources of fresh water might not be easily available). 

The “soil remediation” into which Foundation Specialists has poured years of research and development activity, is dealing with isolating  or encapsulating  the polluted soil (or ground in the generic sense) to prevent pollutants and contaminants from leaching into the aquifers.

Foundation Specialists research and development of technologies dealing with “soil remediation” has been continuous, theories and  design have been subjected to field verification and testing all the way, to assure the applicability and adaptability of technologies to varied field conditions to verify the results of the interventions and the consistency of the results obtaining , both on the short and the long term.

In a nut-shell, of the several contaminated soil remediation technologies developed by Foundation Specialists  some are for very special applications, some are of more general application.  Of this last mentioned cathegory,  two of the "contaminated soil remediation technologies" developed by Foundation Specialists, that are most adaptable to large areas in varied soil conditions are basically employing cement-bentonite slurries to  (1)  isolate the sources of pollution by surrounding then all around and under, with the totally impervious medium, forming a membrane, a curtain wall  or a cut-off wall, non-degradable with time, sufficiently plastic to follow soil deformations without cracking  and indefinitely lechate-resistant, (2) encapsulate the sources of pollution by impregnating the whole contaminated material and isolating it permanently from the environment.

The curtain or cut-off has to be also made in such a way to remain indefinitely able to stretch and deform following the settlements and deformations of the surrounding ground, in order to avoid forming cracks that would allow loss of lechates from the contained areas. 

A great advantage of the soil remediation technologies developed by Foundation Specialists is that  they can be used as "environmental site- conditioning", for the preparation of environmentally safe landfill areas or dumping areas, so that instead of being used to remedy damages to the environment, with a little foresight by the public officials and urban planners, these technologies can be employed to prevent damages to the environment, with obvious and enormous benefits to public health and the environment and the economy in general