Fluoride in Ellensburg, WA Drinking Water
Fluoride data for Ellensburg, Washington · 31,883 residents · 1 ZIP code
SDWIS federal records include Fluoride detections tied to water systems serving Ellensburg, Washington.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-04-05
Fluoride in Ellensburg Tap Water
Fluoride has been detected in Ellensburg, Washington drinking water at a maximum level of 23 ppb — below the EPA MCL of 4.0 mg/L (MCL) / 2.0 mg/L (SMCL).
This analysis covers 31,883 residents across 1 ZIP code in Ellensburg.
Ellensburg's overall water quality grade is B (73/100).
Is Fluoride in Ellensburg Water Safe?
If you live in an affected ZIP code, consider installing a reverse osmosis or activated alumina filter certified under NSF 58 and testing your water independently.
Fluoride Levels by ZIP Code
| ZIP Code | Fluoride Level | EPA Limit | Status |
|---|---|---|---|
| 98926 | 23 ppm | 4.0 mg/L (MCL) / 2.0 mg/L (SMCL) | OK |
Average fluoride level across Ellensburg: 23 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 Ellensburg 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.