Water Hardness in Selma, OH
Ohio · 1 zip codes · 5 matched water systems
City avg (weighted): 157 PPM
Dataset updated March 9, 20265 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology
Is Selma, OH Water Hard or Soft?
The displayed hardness for Selma, OH is 155 PPM (9.1 GPG) from Springfield City Pws, classified as moderately hard. The citywide weighted average is 157 PPM.
Water hardness is not a drinking-water safety score. It measures calcium and magnesium minerals, and address-level results can shift by pressure zone, supply blend, building plumbing, or private well.
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.
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 Selma
These systems are matched to Selma, OH. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.
| Water System | Source | Hardness | Pop. Served |
|---|---|---|---|
| Springfield City Pws OH1204412 | groundwater | 155 PPM Moderately HardUSGS estimate: 391 PPM | |
| Clark County Northridge Pws OH1201003 | groundwater | 155 PPM Moderately HardUSGS estimate: 400 PPM | |
| Clark County Park Layne Pws OH1201112 | groundwater | 155 PPM Moderately HardUSGS estimate: 400 PPM | |
| Clark County Green Meadows 2 Pws OH1200703 | groundwater | 155 PPM Moderately HardUSGS estimate: 400 PPM | |
| Harmony Estates Mobile Home Park OH1202512 | groundwater | 400 PPM Very Hard |
Zip Codes in Selma, OH
What This Means For You
Use this city reading as a local planning estimate, not a final treatment specification. Hardness can vary by utility zone, seasonal blend, private well, and building plumbing. Confirm your tap reading with a utility report or home hardness test before sizing equipment.
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 Selma, OH.
Frequently Asked Questions
How hard is the water in Selma, OH?
The citywide weighted average water hardness in Selma, OH is 157 PPM (9.2 GPG), classified as moderately hard. This is based on 5 matched water systems. The gauge highlights Springfield City Pws, a verified treated-water system, because individual systems can differ from the citywide average.
Do I need a water softener in Selma, OH?
With a citywide average hardness of 157 PPM, a water softener is worth considering for homes in Selma. Confirm your tap reading before sizing equipment.
Is hard water in Selma, 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 Selma, OH?
Selma, Ohio is served by 5 matched water systems across 1 zip code.
Learn More About Your Water
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10 min readPPM to GPG Converter + Water Hardness Scale Explained
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