⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Grays Harbor County

Grays Harbor County, Washington: well depth, water level & drilling cost

✓ 4,821 Ecology records · verified 2026-06-11

80 ftmedian well depth
55 ft–140 fttypical depth range
23 ftmedian static water level
20 gpmmedian yield (1,525 tests)

How deep are wells in Grays Harbor County, Washington?

The median drilled well depth in Grays Harbor County is 80 ft, based on 4,367 wells with recorded depths in the state Ecology database. Half of all wells fall between 55 ft and 140 ft; 90% are shallower than 211 ft. Wells drilled since 2016 have a median depth of 91 ft.

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

Applying published per-foot rates to the local median depth of 91 ft: drilling and casing alone typically runs $2,275–$5,915; a complete system including pump, pressure tank, and hookup typically runs $5,460–$9,100. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Grays Harbor County?

The median static water level is 23 ft below ground surface (middle half of wells: 12 ft–44 ft), from 1,408 measurements.

How much water do wells in Grays Harbor County produce?

The median tested yield is 20 gpm (middle half: 12 gpm–35 gpm), from 1,525 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 856 50–100 ft 1,741 100–150 ft 818 150–200 ft 412 200–300 ft 356 300–400 ft 113 400–600 ft 57 600+ ft 14

Who drills wells in Grays Harbor County?

Licensed drillers by number of wells completed in this county since 2016, per filed well reports (license roster: Washington Department of Ecology).

DrillerWells since 2016
Joshua Koepp143
Rogeray Phythian69
Christopher Jones67
Robert Laymon57
Daniel King52
Albert Smith52
Daniel Carpenter26
Cory Johnson26

Get quotes from local drillers

Looking at a specific property in Grays Harbor County?

See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.

Free lookup Property report — $19

Method: medians computed from Ecology records (water wells only — soil/environmental borings and decommissions excluded; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.