Surnames usually originated from one of the five following sources: (although the same surname may have multiple meanings from different sources in different places) From the first name of father used with either a suffix or prefix (which differ from country to country) to identify the person as son of.
In east coast, the average price is about $10 per household member. Again it also varies on the usage of water. The average water bill for one person will average around 30 dollars a month. Much depends on where you live and whether sewer is included in the bill.
Sources suggest on average it costs around $7,000 to build a well. That ought to serve around 2,000 people with clean water. Other estimates suggest it could cost $1.5 to provide clean water to one person for a year. Then there are factors to take into consideration like maintaining the well, local / governmental bureaucracy, sustainability, empowerment etc.