What to Test For in Poway Wells
The geology in Poway — tonalite and granodiorite bedrock — directly determines what contaminants you're likely to find in your well water.
Common Contaminants in Poway
Based on local geology and decades of testing Poway wells, here's what we typically find:
- Water hardness: 8-14 grains — this causes scale buildup on fixtures, water heaters, and appliances
- Total Dissolved Solids (TDS): 250-450 ppm — affects taste and can indicate other contaminants
- Specific to tonalite and granodiorite bedrock: moderate hardness (8-14 grains), generally clean
Why Poway Water Has These Issues
The City in the Country. Estates and larger rural lots in eastern Poway depend on private wells. Lake Poway area. Generally good water quality.
This geological context explains why Poway wells commonly show: moderate hardness (8-14 grains), generally clean.
Neighborhood-Specific Concerns
- Old Poway: moderate hardness (8-14 grains), generally clean
- Midland: moderate hardness (8-14 grains), generally clean
- Green Valley: moderate hardness (8-14 grains), generally clean
- South Poway: moderate hardness (8-14 grains), generally clean
Our Poway Water Testing Process
- Sample collection: We come to your Poway 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 Poway Wells
- Basic test: Bacteria, nitrates, pH, hardness, TDS
- Mineral panel: Iron, manganese, sulfate (critical for tonalite and granodiorite bedrock)
- Extended panel: Arsenic, uranium, radon (if applicable to your neighborhood)
When to Test Your Poway Well
- Buying or selling a home in Old Poway, Midland, Green Valley, South Poway, Heritage Hills
- Annual testing (recommended for all Poway wells)
- After pump repair or well service
- If you notice taste, odor, or staining issues
- After heavy rains or drought (affects tonalite and granodiorite bedrock aquifers)
Schedule water testing in Poway
Call (760) 440-8520 or request service online.