THE DIRT ON ARTE­SIAN WELLS

The Hamilton Spectator - - LOCAL -

An arte­sian well like An­caster’s is one where wa­ter has trav­elled un­der­ground through por­ous rock, and af­ter be­ing tapped rises to the sur­face without the need of a pump be­cause the wa­ter is un­der pres­sure.

Arte­sian wells do not nec­es­sar­ily have to plunge to great depths, but by def­i­ni­tion the wa­ter is con­fined by “arte­sian pres­sure” be­low the sur­face.

The word arte­sian comes from the Ro­man city of Arte­sium, where wells were drilled in the Mid­dle Ages.

Arte­sian well wa­ter orig­i­nates in aquifers — un­der­ground lay­ers of wa­ter-bear­ing rock that are filled from rain or melted snow that drains into the ground. An­caster’s arte­sian well is from an aquifer that orig­i­nates in the wa­ter ta­ble near the Ge­or­gian Bay area.

Sources

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