Well Drilling Cost

• Prices for drilling a water well are typically quoted by the foot, and vary significantly depending on the type and difficulty of the material being drilled through (sand, solid rock, clay, etc.).
• Drilling the well hole, installing the casing (a tubular lining that prevents the well hole from collapsing) and adding a well cap (a tight-fitting, vermin-proof top seal) typically costs $15 -$30 per foot, or $1,500 -$3,000 for a 100' deep well, and $6,000 -$12,000 for a 400' well. (However, if the geological conditions are especially difficult or access is extremely limited, drilling can cost $30 -$50 a foot or more.) For example, the sustainable Arizona homesteaders at ByExample.com report paying $6,750 to have well drilled 280' deep, or about $24/foot.
• A complete water system is typically designed (and a total price quoted) after the well is successfully drilled and the well's depth and water yield is known. A well pump to bring the water to the surface, a pressurized storage tank or tanks (if the well's yield is not enough to meet peak demand), underground piping to take the water to the house, electrical wiring to power the system, a control panel and other items can add $2,000 -$8,000 or more to the total cost, depending on the size of pump and the distance to the house. This brings the typical total for drilling a well and setting up a private water delivery system to $3,500 -$20,000 or more, but an especially deep and difficult well with a complex water system can cost $20,000 -$50,000 or more, depending on depth, water yield and system complexity. A great deal depends on local geological conditions. For example, Cushing & Sons Well Drilling in New Hampshire estimates an average cost of $5,000 for a complete water well system in that area, while a Colorado landowner reports costs of $14,000 to drill a 600' well (about $23 -$24/foot) and another $7,000 -$8,000 for a constant pressure pump system with a 70' water line to the house, or $21,000 -$22,000 total.

• The Kansas Geological Society explains how to evaluate the potential for a water well and a video by the American Groundwater Turst provides an overview of well water systems, including drilling methods.
• It can take one to several days to drill a well and install the casing, depending on the final depth needed. Typically the drill rig sits on a large truck, which the crew will position on the selected site, then drill until water is reached. ByExample.com in Arizona reports that it took two days to drill a 280' well and one day to set the casing with concrete.
• In some areas it is illegal to construct any kind of well without first obtaining a permit, and most jurisdictions specify how far the well must be from existing buildings, roadways, animal enclosures, a septic system or other installations. The Water Systems Council provides a tool to determine which state well codes apply.

• Search for local water well contractors through the National Ground Water Association. The association also provides a state-by-state list of well-water-related resources, including licensing agencies for geologists, engineers, and contractors; regulatory agencies; groundwater-use summaries; and groundwater-quality reports.
• The well driller should provide a written contract listing the work to be done and the specific costs, including potential fees for drilling deeper or drilling a second well if the first must be abandoned. Foster Water Well Drilling in California explains how to hire a water well contractor.

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