hydrostatic force and capillary action
Once the contaminants touch the ground they seep into the groundwater table, after this they are distributed into groundwater wells and aquifers.
Chimicles like cleaning supplies and other toxins can seep into the ground and make the water unstable
groundwater is used faster than it is replaced
The seep into the ground (polluting aquifers that we use for drinking water) and to the surface and cause widespread environmental damage (harm to life on Earth).
It very much depends on the area; some groundwater is polluted but other groundwater is pure.
Yes, but it's a very slow process.
Groundwater is in the ground, not in lakes or rivers.
groundwater
A WELL is a shaft in the ground used to remove groundwater
You have a high groundwater table. Most likely it is always higher than average and the spring thaw and rains just made the situation more obvious.
Petroleum
Groundwater is recharged by rain being absorbed into the ground.