Fluoride in Santa Ana, CA Drinking Water
Fluoride data for Santa Ana, California · 335,987 residents · 12 ZIP codes
Across Santa Ana, California, federal monitoring data has captured Fluoride in water samples at detectable concentrations in the most recent available reporting cycle.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-04-05
Fluoride in Santa Ana Tap Water
Fluoride has been detected in Santa Ana, California drinking water at a maximum level of 2.3 ppb — below the EPA MCL of 4.0 mg/L (MCL) / 2.0 mg/L (SMCL).
This analysis covers 335,987 residents across 12 ZIP codes in Santa Ana.
Santa Ana's overall water quality grade is B (84/100).
Is Fluoride in Santa Ana Water Safe?
Fluoride was detected in Santa Ana water but currently falls within EPA limits. However, some health organizations argue the EPA MCL may not be protective enough.
If you are concerned, a reverse osmosis or activated alumina filter can reduce fluoride levels further.
Fluoride Levels by ZIP Code
| ZIP Code | Fluoride Level | EPA Limit | Status |
|---|---|---|---|
| 92701 | 2.3 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 92702 | 2.3 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 92703 | 2.3 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 92704 | 2.3 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 92705 | 2.3 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 92706 | 2.3 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 92707 | 2.3 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 92711 | 2.3 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 92712 | 2.3 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 92725 | 2.3 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 92735 | 2.3 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
| 92799 | 2.3 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
Average fluoride level across Santa Ana: 2.3 ppb
Health Effects of Fluoride
- Skeletal fluorosis at levels above 4 mg/L (bone pain, joint stiffness)
- Dental fluorosis in children at levels above 2 mg/L
- At 0.7 mg/L (water fluoridation level), helps prevent tooth decay
- Possible thyroid effects at high chronic exposure
Health risk severity: Moderate. Governed by the National Primary Drinking Water Regulations.
How Fluoride Gets Into Drinking Water
- Intentional water fluoridation (0.7 mg/L target, beneficial)
- Natural deposits in certain rock formations
- Industrial discharge (aluminum, fertilizer production)
- Naturally elevated in some groundwater (especially arid regions)
What to Do About Fluoride in Santa Ana Water
- Reverse osmosis removes 90%+ of fluoride
- Activated alumina filters are effective for fluoride
- Bone char carbon can reduce fluoride
- Standard activated carbon filters do NOT remove fluoride
Look for filters certified under NSF 58 for fluoride removal.