Water Hardness in Grafton, OH
Ohio · 1 zip codes · 8 matched water systems
City avg (weighted): 120 PPM
Dataset updated March 9, 20268 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology
Is Grafton, OH Water Hard or Soft?
The displayed hardness for Grafton, OH is 120 PPM (7 GPG) from Rural Lorain Co. Water A, classified as moderately hard. The citywide weighted average is 120 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 8 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 Grafton
These systems are matched to Grafton, 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 |
|---|---|---|---|
| Rural Lorain Co. Water A OH4701803 | surface water | 120 PPM Moderately HardUSGS estimate: 176 PPM | |
| Elyria Water Department OH4700411 | surface water | 120 PPM Moderately HardUSGS estimate: 176 PPM | |
| Lorain City Pws OH4700711 | surface water | 120 PPM Moderately HardUSGS estimate: 176 PPM | |
| North Ridgeville City Pws OH4700803 | surface water | 120 PPM Moderately HardUSGS estimate: 164 PPM | |
| Avon City Pws OH4700203 | surface water | 120 PPM Moderately HardUSGS estimate: 164 PPM |
Zip Codes in Grafton, 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 Grafton, OH.
Frequently Asked Questions
How hard is the water in Grafton, OH?
The citywide weighted average water hardness in Grafton, OH is 120 PPM (7 GPG), classified as moderately hard. This is based on 8 matched water systems. The gauge highlights Rural Lorain Co. Water A, a verified treated-water system, because individual systems can differ from the citywide average.
Do I need a water softener in Grafton, OH?
With a citywide average hardness of 120 PPM, a water softener is worth considering for homes in Grafton. Confirm your tap reading before sizing equipment.
Is hard water in Grafton, 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 Grafton, OH?
Grafton, Ohio is served by 8 matched water systems across 1 zip code.
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