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Water Hardness in Piqua, OH

Ohio · 1 zip codes · 5 matched water systems

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

Dataset updated March 9, 20265 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

Source context

How this city reading is built

This city reading is a weighted rollup across 5 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
4 USGS-backed sources
5 matched systems total for this city; 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 in Piqua

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

5 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
Saint Paris Village Pws
OH1100912
Very Hard
360 PPMgroundwater2,089 servedHigh Confidence — USGS Monitoring
Country Meadows Condo.
OH5500012
Very Hard
360 PPMgroundwater65 servedHigh Confidence — USGS Monitoring

Zip Codes in Piqua, OH

What This Means For You

Recommendations are based on the displayed 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 Piqua, OH.

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Frequently Asked Questions

How hard is the water in Piqua, OH?

The citywide weighted average water hardness in Piqua, OH is 395 PPM (23.1 GPG), classified as very hard. This is based on 5 matched water systems.

Do I need a water softener in Piqua, OH?

With a citywide average hardness of 395 PPM, a water softener is recommended for homes in Piqua. Confirm your tap reading before sizing equipment.

Is hard water in Piqua, OH 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 Piqua, OH?

Piqua, Ohio is served by 5 matched water systems across 1 zip code.

Learn More About Your Water