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Water Hardness in Dexter, MI

Michigan · 1 zip codes · 4 matched water systems

129 PPM
7.5 GPG
Moderately Hard
0Soft60120180300+
Verified — Utility Reported

City avg (weighted): 165 PPM

Dataset updated March 9, 20264 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Ann Arbor
MI0000220
Water source: surface water
Serves: 241,868
USGS environmental estimate: 261 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 4 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
1 verified treated-water source
4 matched systems total for this city; treated-water reports are prioritized when available.
Water source profile
Primarily surface water
Surface-water hardness can shift with reservoirs, runoff, season, and treatment. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.

Water Systems in Dexter

These systems are matched to Dexter, MI. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

4 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
Ann Arbor
MI0000220
Moderately Hard
129 PPMsurface water241,868 servedVerified — Utility Reported
Source water: 261 PPM
Ypsilanti Community Utility Authority
MI0007260
Very Hard
270 PPMsurface water53,988 servedHigh Confidence — USGS Monitoring
Pittsfield Township
MI0005360
Very Hard
261 PPMsurface water24,500 servedHigh Confidence — USGS Monitoring
Dexter
MI0001810
Very Hard
346 PPMgroundwater4,500 servedHigh Confidence — USGS Monitoring

Zip Codes in Dexter, MI

What This Means For You

Recommendations are based on the displayed hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

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If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Dexter, MI.

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Frequently Asked Questions

How hard is the water in Dexter, MI?

The citywide weighted average water hardness in Dexter, MI is 165 PPM (9.7 GPG), classified as moderately hard. This is based on 4 matched water systems. The gauge highlights Ann Arbor, a verified treated-water system, because individual systems can differ from the citywide average.

Do I need a water softener in Dexter, MI?

With a citywide average hardness of 165 PPM, a water softener is worth considering for homes in Dexter. Confirm your tap reading before sizing equipment.

Is hard water in Dexter, MI safe to drink?

Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.

How many water systems serve Dexter, MI?

Dexter, Michigan is served by 4 matched water systems across 1 zip code.

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