Is Miami tap water safe to drink?

Yes but with caveats

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

73/100
Purity Score
3
Issues Found
11.5 GPG
Hardness
Not detected
PFAS

3 Issues Detected in Miami

Very Hard Water (11.5 GPG)

Hard water causes scale in pipes and shortens appliance lifespan.

Hardness data for Miami

High Chlorine Residual

Elevated chlorine can affect taste smell and skin.

Chlorine info for Miami

Arsenic Approaching Limit (0.4 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Miami
Florida

331,013,312,533,126 · Biscayne Aquifer

Miami, FL Water Quality Report

Moderate Risk Updated March 2026 2.7M residents
See Best Filters for Miami
73
Purity Score

Contaminant Levels

PFAS
ND
Lead
3 ppb
Nitrate
0.6 mg/L
Arsenic
0.4 mg/L
Hardness
11.5 gpg

Health Insights

  • 1
    With a hardness of 11.5 GPG, Miami residents may notice white scale on faucets. Hard water increases maintenance costs.
  • 2
    Chlorine residuals in Miami are on the higher end. An activated carbon filter readily removes it.

Score

73 /100
Moderate
"Good" threshold (70)

Miami tap water is sourced from Biscayne Aquifer and treated by Miami-Dade Water and Sewer Department. Water hardness is very hard at 11.5 GPG which may cause scale buildup. TDS is 470 ppm which is above the EPA secondary guideline of 500 ppm. Overall purity score: 73/100 (Moderate). Updated for 2026.

Fix Your Water

Best filters matched to Miami's 3 issues.

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Miami Water FAQ

Is Miami FL tap water safe to drink in 2026?
Miami tap water meets EPA federal drinking water standards and scores 73/100 (Moderate) 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 Miami FL use chlorine or chloramine for disinfection?
Miami uses chloramine as the primary disinfectant with a residual level of 2.1 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 Miami FL water and what is the TDS level?
Miami water hardness is 11.5 grains per gallon (very hard) with a TDS of 470 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 Miami FL drinking water?
Based on available EPA UCMR5 monitoring data as of 2026 PFAS have not been detected above EPA advisory levels in Miami drinking water.
What is the best water filter for Miami?
Based on Miami's water profile, we recommend the AFWFilters 5600sxt 48000 Grain Softener. Miami has very hard water (11.5 GPG) and elevated chlorine. A whole-house carbon plus softener system handles both.

Nearby Reports

Boca RatonFlorida — 61/100Coral SpringsFlorida — 61/100TallahasseeFlorida — 67/100HialeahFlorida — 73/100TampaFlorida — 78/100Fort LauderdaleFlorida — 78/100

All Florida cities

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Data Sources

  • EPA SDWIS
  • EWG Tap Water Database
  • Miami-Dade Water and Sewer Department CCR
  • USGS monitoring data

PurityMap compiles public data. Updated March 2026.

© 2026 PurityMap. For informational purposes only.

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