Montana Well Data field records · 2026 survey

Montana Well Data › Valley County

Valley County, Montana: well depth, water level & drilling cost

✓ 3,114 GWIC records · verified 2026-06-10

68 ftmedian well depth
40 ft–120 fttypical depth range
26 ftmedian static water level
10 gpmmedian yield (2,368 tests)

How deep are wells in Valley County, Montana?

The median drilled well depth in Valley County is 68 ft, based on 3,018 wells with recorded depths in the state GWIC database. Half of all wells fall between 40 ft and 120 ft; 90% are shallower than 210 ft. Wells drilled since 2016 have a median depth of 50 ft.

How much does it cost to drill a well in Valley County?

Applying published per-foot rates to the local median depth of 50 ft: drilling and casing alone typically runs $1,250–$3,250; a complete system including pump, pressure tank, and hookup typically runs $3,000–$5,500. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Valley County?

The median static water level is 26 ft below ground surface (middle half of wells: 17 ft–55 ft), from 2,224 measurements.

How much water do wells in Valley County produce?

The median tested yield is 10 gpm (middle half: 7 gpm–20 gpm), from 2,368 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 1,017 50–100 ft 990 100–150 ft 484 150–200 ft 206 200–300 ft 111 300–400 ft 73 400–600 ft 62 600+ ft 75

Who drills wells in Valley County?

Companies by number of wells completed in this county since 2016, per filed well logs.

Drilling companyWells since 2016
MONTANA SALINITY CONTROL ASSOCIATION40
HANSEN ENVIRONMENTAL DRILLING31
AGRI INDUSTRIES INC23
HAZ TECH DRILLING INC21
EATON DRILLING CO10
PETRIE PUMP & DRILLING10
PIRTZ WATERWORX LLC10
WESTERN WATER WELLS8

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Looking at a specific property in Valley County?

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Method: medians computed from GWIC records (site type WELL, non-abandoned; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-10) to the local median depth — full methodology & sources.