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Water Hardness in 45326

Fletcher, Ohio · Miami County

396 PPM
23.1 GPG
Very Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 4 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 4 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis
2 USGS-backed sources
4 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. 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 Serving 45326

These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.

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.
Troy City Pws
OH5501612
Very Hard
430 PPMgroundwater26,305 servedEstimated — Nearby Data
Nawa
OH5553612
Very Hard
389 PPMgroundwater24,766 servedHigh Confidence — USGS Monitoring
Piqua City Pws
OH5501211
Very Hard
360 PPMsurface water20,354 servedHigh Confidence — USGS Monitoring
Fletcher Village Pws
OH5500412
Very Hard
391 PPMgroundwater461 servedEstimated — Nearby Data

Nearby Zip Codes

What This Means For You

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

Very Hard Water - Treatment Strongly Recommended

Your water is very hard. Without treatment, you can expect significant scale buildup in pipes and appliances, higher energy bills from reduced water heater efficiency, and persistent issues with skin and hair dryness.

Recommended Products

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | How to Test Your Water

Know your water hardness?

If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Fletcher, OH (45326).

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Frequently Asked Questions

Is the water hard in Fletcher, OH (45326)?

The average water hardness in 45326 is 396 PPM (23.1 GPG), which is classified as very hard.

Do I need a water softener in 45326?

With hardness of 396 PPM, a water softener is recommended for homes in 45326.

Is hard water in 45326 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 45326?

Zip code 45326 in Fletcher, Ohio is served by 4 water systems.

Learn More About Your Water