How much fluoride is in Portales water?

The maximum detected level of fluoride in Portales water is 2.61 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 Portales, NM Drinking Water

Q: Is fluoride in Portales water safe?

Fluoride was detected in Portales water at 2.61 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 Portales, New Mexico · 18,327 residents · 1 ZIP code

Over the past reporting period, water systems in Portales, New Mexico have recorded Fluoride at detectable concentrations in EPA compliance samples.

2.61 ppb

Max Level Detected

2.61 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: 2026-05-14

Fluoride in Portales Tap Water

Fluoride has been detected in Portales, New Mexico drinking water at a maximum level of 2.61 ppb — below the EPA MCL of 4.0 mg/L (MCL) / 2.0 mg/L (SMCL).

This analysis covers 18,327 residents across 1 ZIP code in Portales.

Portales's overall water quality grade is B (76/100).

Is Fluoride in Portales Water Safe?

Fluoride was detected in Portales 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
88130	2.61 ppm	4.0 mg/L (MCL) / 2.0 mg/L (SMCL)	OK

Average fluoride level across Portales: 2.61 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 Portales 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.

Home → Contaminants → Fluoride → New Mexico → Portales