Founder Effect. The Founder Effect is defined as a type of bottleneck, a type of genetic drift describing the loss of the allelic variation that accompanies founding of a new population from a very small number of individuals (a small sample of a much larger source population).
For example, two well drilling companies -- one in Pennsylvania and one that covers New Hampshire, Vermont and central Massachusetts -- state the cost for drilling a well and outfitting it with pump equipment averages between $5,000 and $7,000, at the time of publication.
As of 2015, repairing or replacing a well water pump can range in cost from $165 to more than $1,700, with the average being around $800. The differences stem from the extent of the damage, the size of the pump, the materials used and the pump's distance from the house. Full Answer >.