Is Detroit tap water safe to drink?

Yes but with caveats

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

74/100
Purity Score
3
Issues Found
7.3 GPG
Hardness
Not detected
PFAS

3 Issues Detected in Detroit

Moderately Hard Water (7.3 GPG)

Hardness above 7 GPG can cause minor scale buildup.

Hardness data for Detroit

Moderate Chlorine Level

Chlorine within EPA limits but may affect taste.

Chlorine info for Detroit

Arsenic Approaching Limit (0.2 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Detroit
Michigan

482,014,820,248,203 · Lake Huron

Detroit, MI Water Quality Report

Moderate Risk Updated March 2026 673,000 residents
74
Purity Score

Health Insights

  • 1
    With a hardness of 7.3 GPG, Detroit residents may notice white scale on faucets. Hard water increases maintenance costs.
  • 2
    Chlorine levels may affect the taste of Detroit's tap water. A carbon filter improves flavor.

Score

74 /100
Moderate
"Good" threshold (70)

Detroit tap water is sourced from Lake Huron and treated by Great Lakes Water Authority. Water hardness is hard at 7.3 GPG which may cause scale buildup. Overall purity score: 74/100 (Moderate). Updated for 2026.

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Detroit Water FAQ

Is Detroit MI tap water safe to drink in 2026?
Detroit tap water meets EPA federal drinking water standards and scores 74/100 (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 Detroit MI use chlorine or chloramine for disinfection?
Detroit uses chloramine as the primary disinfectant with a residual level of 1.9 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 Detroit MI water and what is the TDS level?
Detroit water hardness is 7.3 grains per gallon (hard) with a TDS of 190 ppm (fair). 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 Detroit MI drinking water?
Based on available EPA UCMR5 monitoring data as of 2026 PFAS have not been detected above EPA advisory levels in Detroit drinking water.
What is the best water filter for Detroit?
Based on Detroit's water profile, we recommend the AFWFilters 5600sxt 48000 Grain Softener. Detroit has elevated chlorine residuals. An under-sink carbon filter removes chlorine and disinfection byproducts at the tap.

Nearby Reports

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Data Sources

  • EPA SDWIS
  • EWG Tap Water Database
  • Great Lakes Water Authority CCR
  • USGS monitoring data

PurityMap compiles public data. Updated March 2026.

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