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Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

Jetted wells, similar to drilled wells, are more common in sandy soils than in clay formations. A high-velocity stream of water is forced into the soil, then a jetting tool (point) is pushed into the loosened material to provide access for the well casing that follows. The casing of a jetted well often does not extend above the ground surface, a factor that both allows contaminants to enter the well and makes it difficult to later locate and inspect the well.  2, fiche 1, Anglais, - jetted%20well

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 OBS

Dans les terrains très sablonneux, on peut être amené, pour faciliter le fonçage à avoir recours au lançage qui consiste à utiliser un jet d'eau sous pression.  2, fiche 1, Français, - puits%20creus%C3%A9%20par%20lan%C3%A7age

Fiche 1,  Justifications,  Espagnol