Water Hardness in Coatesville, PA
Pennsylvania · 1 zip codes · 15 matched water systems
Dataset updated March 9, 202615 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology
Is Coatesville, PA Water Hard or Soft?
The citywide weighted average water hardness in Coatesville, PA is 126 PPM (7.4 GPG), classified as moderately hard. Individual systems, ZIP codes, and private wells can differ.
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 15 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 Coatesville
These systems are matched to Coatesville, PA. 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 |
|---|---|---|---|
| Aqua Pa West Chester PA1150098 | surface water | 184 PPM Hard | |
| Pa American Royersford PA1150166 | surface water | 70 PPM Slightly Hard | |
| Pa American Coatesville PA1150106 | surface water | 95 PPM Slightly Hard | |
| Aqua Pa Uwchlan PA1150035 | surface water | 184 PPM Hard | |
| Phoenixville Water Dept PA1150077 | surface water | 70 PPM Slightly Hard |
Zip Codes in Coatesville, PA
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 Coatesville, PA.
Frequently Asked Questions
How hard is the water in Coatesville, PA?
The citywide weighted average water hardness in Coatesville, PA is 126 PPM (7.4 GPG), classified as moderately hard. This is based on 15 matched water systems.
Do I need a water softener in Coatesville, PA?
With a citywide average hardness of 126 PPM, a water softener is worth considering for homes in Coatesville. Confirm your tap reading before sizing equipment.
Is hard water in Coatesville, PA 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 Coatesville, PA?
Coatesville, Pennsylvania is served by 15 matched water systems across 1 zip code.
Learn More About Your Water
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