If an in-well submersible, can be $300 range for simplest case IF mounted on flexible plastic pipe that can be easily pulled from shallow (less than about 20-30') well - up to $1000 plus for deep wells, which yours obviously is not if 20/40 psi.
For complete information about Altavista, see the town's website. Community Description. Altavista, with a population of approximately 3,400, is located in the southwestern part of Campbell County, approximately 20 miles south of Lynchburg on U.S. Highway 29.
Warren County is a U.S. county located in the Commonwealth of Virginia. The 2010 census places Warren County within the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area with a population of 37,575.[1] The county seat is Front Royal.[2]