Ontario, California Drillers and Service Providers

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Your go-to guide for expert water well drillers, groundwater, and drought information in ontario, California. Find reliable professionals for new installations, repairs, or maintenance.

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

Water Well Professionals in Ontario, California – Water Well Drilling, Service, and Treatment

Yellow Jacket Drilling Services
9460 Lucas Ranch Rd
Great West Drilling Inc
9431 Resenda Ave
General Pump Company Inc.
159 N Acacia St
Rivera Water Pump & Well Services
4766 Valley Forge Dr
Berchtold Water Well & Pump
2762 St Lawrence St
Best Drilling and Pump, Inc.
1640 Pellisier Rd
Legend Pump & Well Service, Inc.
1324 W Rialto Ave
Daugherty Pump & Drilling
4281 El Mirage Rd
Independent Well Drilling
11675 Tujunga Rd

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Water Well Terminology

MacroporeA large soil pore that can transmit water rapidly.

Learn about more terms in the glossary.

Ontario Statistics

Geology
AquifierCalifornia Coastal Basin aquifers
Rock FormationUnconsolidated sand and gravel aquifers
Well Information*
Well Depth377 (ft)
SWL222 (ft)
Bedrock Depth-- (ft)
Yield994 (gpm)
* Average within 5km
Drought Monitor
July 8, 2025D2 
July 1, 2025D2 
June 24, 2025D2 
June 17, 2025D2 
June 10, 2025D2 
June 3, 2025D2 
May 27, 2025D2 
May 20, 2025D2