What to Test For in Rainbow Wells
The geology in Rainbow — weathered granite and gabbroic rock — directly determines what contaminants you're likely to find in your well water.
Common Contaminants in Rainbow
Based on local geology and years of testing Rainbow 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): 300-600 ppm — affects taste and can indicate other contaminants
- Specific to weathered granite and gabbroic rock: moderate hardness (8-14 grains), occasional boron, iron in some areas
Why Rainbow Water Has These Issues
Small rural community near Fallbrook. Avocado groves and nurseries. Mix of municipal water and private wells. Gabbroic rock geology unique to this area. Near Camp Pendleton. Horse properties.
This geological context explains why Rainbow wells commonly show: moderate hardness (8-14 grains), occasional boron, iron in some areas.
Neighborhood-Specific Concerns
- Rainbow proper: moderate hardness (8-14 grains), occasional boron, iron in some areas
- Gopher Canyon: moderate hardness (8-14 grains), occasional boron, iron in some areas
- West Lilac: moderate hardness (8-14 grains), occasional boron, iron in some areas
- Rainbow Heights: moderate hardness (8-14 grains), occasional boron, iron in some areas
Our Rainbow Water Testing Process
- Sample collection: We come to your Rainbow 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 Rainbow Wells
- Basic test: Bacteria, nitrates, pH, hardness, TDS
- Mineral panel: Iron, manganese, sulfate (critical for weathered granite and gabbroic rock)
- Extended panel: Arsenic, uranium, radon (if applicable to your neighborhood)
When to Test Your Rainbow Well
- Buying or selling a home in Rainbow proper, Gopher Canyon, West Lilac, Rainbow Heights, Old Highway 395
- Annual testing (recommended for all Rainbow wells)
- After pump repair or well service
- If you notice taste, odor, or staining issues
- After heavy rains or drought (affects weathered granite and gabbroic rock aquifers)
Schedule water testing in Rainbow
Call (760) 440-8520 or request service online.