It moves by leaching through water.
Anything toxic can cause ground water contamination if poured on the ground.
rupture of underground storage tanks of some sort, application of pestcides,
Today, if they're tested, they're usually tested by underground detonation at remote sites. In the early days of testing, they were tested by the method of delivery and detonation - air, artillery, underwater, or ground detonation. As the realization of fallout contamination became known (Alpha Radiation contamination), the tests were performed underground to localize contamination and to prevent airborne spread.
Soil can move by wind, water, and creatures that live underground.
Water moves underground through pipes and man made tunnels. If there are no pipes or tunnels, water finds little holes or crevices to move through.
There are a few Pokemon that live underground such as Diglett and Dugtrio. Also, the move Dig allows Pokemon to burrow underground to attack their opponents.
It allows you to remove your IPE, any surface contamination, and move to an area free of toxic material.
Focus
Spring water is water that is held underground in the soil and in pervious rocks. It is said to be healthier because of less contamination.
Springs: This is groundwater that emerges at the surface from deep underground. Immense pressure combined with the structure of the local geology forces the water to the surface.
When you beat snorlax
abolutionists