How much fluoride is in Coolidge water?

The maximum detected level of fluoride in Coolidge water is 2.33 ppb. The EPA limit is 4.0 mg/L (MCL) / 2.0 mg/L (SMCL). See the ZIP code table above for area-specific levels.

Detected Fluoride

Fluoride in Coolidge, AZ Drinking Water

Q: Is fluoride in Coolidge water safe?

Fluoride was detected in Coolidge water at 2.33 ppb, below the EPA limit of 4.0 mg/L (MCL) / 2.0 mg/L (SMCL). Check ZIP-level data on this page for your specific area.

Fluoride data for Coolidge, Arizona · 18,582 residents · 2 ZIP codes

Over the past reporting period, water systems in Coolidge, Arizona have recorded Fluoride at detectable concentrations in EPA compliance samples.

2.33 ppb

Max Level Detected

2.33 ppb

Average Level

4.0 mg/L (MCL) / 2.0 mg/L (SMCL)

EPA MCL

Moderate

Health Risk

Reverse Osmosis or Activated Alumina

Best Filter Method

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-06-04

Fluoride in Coolidge Tap Water

Fluoride has been detected in Coolidge, Arizona drinking water at a maximum level of 2.33 ppb — below the EPA MCL of 4.0 mg/L (MCL) / 2.0 mg/L (SMCL).

This analysis covers 18,582 residents across 2 ZIP codes in Coolidge.

Coolidge's overall water quality grade is B (79/100).

Is Fluoride in Coolidge Water Safe?

Fluoride was detected in Coolidge 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
85128	2.33 ppm	4.0 mg/L (MCL) / 2.0 mg/L (SMCL)	OK

Average fluoride level across Coolidge: 2.33 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 Coolidge 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.

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