Mercer Island, Washington Drillers and Service Providers

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Find reliable water well drillers, groundwater, and drought information in mercer island, Washington. For new well installations, repairs, or routine upkeep, explore our listings for trusted professionals.

Interactive Water Well Map – Estimate your new well's depth

Visit the Mercer Island Water Well Map to view the water, irrigation, and geothermal wells.

Water Well Professionals in Mercer Island, Washington – Water Well Drilling, Service, and Treatment

Gregory Drilling Inc
14112 452nd Ave SE

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Water Well Terminology

RunoffWater that flows over the land surface and into streams and rivers.

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Mercer Island Statistics

Geology
AquifierPuget Sound aquifer system
Rock FormationUnconsolidated sand and gravel aquifers
Well Information*
Well Depth-- (ft)
SWL-- (ft)
Bedrock Depth-- (ft)
Yield-- (gpm)
* Average within 5km
Drought Monitor
July 8, 2025D1 
July 1, 2025D1 
June 24, 2025D1 
June 17, 2025D1 
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June 3, 2025D1 
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