Water Well Drilling

There are two types of groundwater sources, confined and unconfined aquifers. Confined aquifers are located within the bedrock formations of an area. Whereas unconfined aquifers are located above the bedrock within glacial drift, typically sand and gravel formations. Water wells are used to access both types, the difference is in the well construction.

In most residential water well construction we expect to find water within a confined aquifer. To do so, we drill a 6″ hole into the ground, using steel casing until the depth of bedrock. The casing is then seated and seal into the bedrock with grout, and the hole is continued until the aquifer (water) is reached.

Wells can also be constructed so that the water supply comes from an unconfined aquifer formation rather than a confined one. These wells are different because the water is located within a sand and gravel formation. This requires casing all the way down the hole and a stainless steel well screen extended into the formation.

Every well is different and the total depth of the well is determined by the depth of water in the formation. This depends on the area in which you are located, as no two areas are the same, and is best estimated by knowledge of the depths of surrounding wells.

If you happen to have any more questions pertaining to water well drilling feel free to contact us.