What to Test For in Ontario Wells
The geology in Ontario — San Bernardino alluvial fan deposits — directly determines what contaminants you're likely to find in your well water.
Common Contaminants in Ontario
Based on local geology and decades of testing Ontario wells, here's what we typically find:
- Water hardness: 12-20 grains — this causes scale buildup on fixtures, water heaters, and appliances
- Total Dissolved Solids (TDS): 450-900 ppm — affects taste and can indicate other contaminants
- Specific to San Bernardino alluvial fan deposits: hard water (12-20 grains), nitrates, industrial contamination concerns
Why Ontario Water Has These Issues
Large Inland Empire city. Ontario International Airport. Major industrial and logistics hub. Mostly on municipal water but some industrial/agricultural wells remain. Good alluvial fan yields.
This geological context explains why Ontario wells commonly show: hard water (12-20 grains), nitrates, industrial contamination concerns.
Neighborhood-Specific Concerns
- North Ontario: hard water (12-20 grains), nitrates, industrial contamination concerns
- South Ontario: hard water (12-20 grains), nitrates, industrial contamination concerns
- Airport area: hard water (12-20 grains), nitrates, industrial contamination concerns
- Euclid Avenue corridor: hard water (12-20 grains), nitrates, industrial contamination concerns
Our Ontario Water Testing Process
- Sample collection: We come to your Ontario property and collect samples from the well
- Laboratory analysis: Certified lab tests for bacteria, minerals, metals, and contaminants
- Results interpretation: We explain what the numbers mean for your specific property
- Treatment recommendations: Based on your water quality, we recommend filtration, softening, or other treatment
Recommended Tests for Ontario Wells
- Basic test: Bacteria, nitrates, pH, hardness, TDS
- Mineral panel: Iron, manganese, sulfate (critical for San Bernardino alluvial fan deposits)
- Extended panel: Arsenic, uranium, radon (if applicable to your neighborhood)
When to Test Your Ontario Well
- Buying or selling a home in North Ontario, South Ontario, Airport area, Euclid Avenue corridor, Cucamonga area
- Annual testing (recommended for all Ontario wells)
- After pump repair or well service
- If you notice taste, odor, or staining issues
- After heavy rains or drought (affects San Bernardino alluvial fan deposits aquifers)
Schedule water testing in Ontario
Call (760) 440-8520 or request service online.