Washington Well Data field records · 2026 survey

Washington Well DataMason County › ZIP 98588

ZIP 98588, Mason County: well depth, water level & drilling cost

✓ 162 Ecology records · Mason County

183 ftmedian well depth
130 ft–238 fttypical depth range
128 ftmedian static water level
20 gpmmedian yield (69 tests)

How deep are wells in ZIP 98588, Washington?

The median drilled well depth in ZIP 98588 is 183 ft, based on 161 wells with recorded depths in the state Ecology database. Half fall between 130 ft and 238 ft; 90% are shallower than 276 ft.

How much does it cost to drill a well in ZIP 98588?

Applying published per-foot rates to the local median depth of 194 ft: drilling and casing alone typically runs $4,850–$12,610; a complete system including pump, pressure tank, and hookup typically runs $11,640–$19,400. Actual quotes depend on site access, geology, and casing requirements.

Get quotes from drillers who work in ZIP 98588

Free for property owners. We route your request only to licensed drillers who actually file well logs in Mason County — never sold elsewhere.

What is the static water level in ZIP 98588?

The median static water level is 128 ft below ground surface (middle half of wells: 70 ft–184 ft), from 58 measurements.

Pull every recorded well near a ZIP 98588 address — $19

Bad well water in Mason County?

Iron staining, rotten-egg smell, hard water, or a failed test at closing — Salish Water Works, a new Puget Sound company, publishes its treatment systems and planned prices up front and specs the fix from your water test. No in-home sales visit. Installation opens Fall 2026; the waitlist is open now and waitlist members get first slot priority.

See planned systems & pricing → salishwaterworks.com

Drilled depth distribution

0–50 ft 9 50–100 ft 18 100–150 ft 30 150–200 ft 31 200–300 ft 61 300–400 ft 9 400–600 ft 3 600+ ft 0
Looking at a specific property in ZIP 98588?

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

Part of Mason County well records.

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