Is Gilbert tap water safe to drink?

Yes but with caveats

Gilbert's water meets EPA minimum standards but has some concerns. Filtration is recommended for sensitive individuals.

75/100
Purity Score
3
Issues Found
12 GPG
Hardness
Not detected
PFAS

3 Issues Detected in Gilbert

Very Hard Water (12 GPG)

Hard water causes scale in pipes and shortens appliance lifespan.

Hardness data for Gilbert

Moderate Chlorine Level

Chlorine within EPA limits but may affect taste.

Chlorine info for Gilbert

Arsenic Approaching Limit (0.4 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Gilbert
Arizona

852,338,523,485,295 · Colorado River and groundwater

Gilbert, AZ Water Quality Report

Moderate Risk Updated March 2026 267,918 residents
75
Purity Score

Health Insights

  • 1
    With a hardness of 12 GPG, Gilbert residents may notice white scale on faucets. Hard water increases maintenance costs.
  • 2
    Chlorine levels may affect the taste of Gilbert's tap water. A carbon filter improves flavor.

Score

75 /100
Good
"Good" threshold (70)

Gilbert tap water is sourced from Colorado River and groundwater and treated by Town of Gilbert Water. Water hardness is very hard at 12.0 GPG which may cause scale buildup. TDS is 500 ppm which is above the EPA secondary guideline of 500 ppm. Overall purity score: 75/100 (Good). Updated for 2026.

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Best filters matched to Gilbert's 3 issues.

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Gilbert Water FAQ

Is Gilbert AZ tap water safe to drink in 2026?
Gilbert tap water meets EPA federal drinking water standards and scores 75/100 (Good) on PurityMap for 2026. For most healthy adults the water is considered safe but point-of-use filtration adds an important layer of protection.
Does Gilbert AZ use chlorine or chloramine for disinfection?
Gilbert uses chloramine as the primary disinfectant with a residual level of 1.4 ppm. Chloramine is harder to remove than free chlorine and requires a catalytic carbon or reverse osmosis filter. Standard Brita-style pitchers will NOT remove chloramine.
How hard is Gilbert AZ water and what is the TDS level?
Gilbert water hardness is 12.0 grains per gallon (very hard) with a TDS of 500 ppm (poor). This level causes noticeable scale buildup in water heaters kettles and dishwashers. A water softener is recommended to protect plumbing and reduce soap usage.
Has PFAS been found in Gilbert AZ drinking water?
Based on available EPA UCMR5 monitoring data as of 2026 PFAS have not been detected above EPA advisory levels in Gilbert drinking water.
What is the best water filter for Gilbert?
Based on Gilbert's water profile, we recommend the AFWFilters 5600sxt 48000 Grain Softener. Gilbert has very hard water (12.0 GPG) and elevated chlorine. A whole-house carbon plus softener system handles both.

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Data Sources

  • EPA SDWIS
  • EWG Tap Water Database
  • Town of Gilbert Water CCR
  • USGS monitoring data

PurityMap compiles public data. Updated March 2026.

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