Is tap water safe in Springfield?

EPA SDWIS shows no active health-based violation in this profile's reporting window. That is not the same as proving every contaminant is absent, and federal data can lag state and utility records.

How hard is the water in Springfield, OH?

Nearby USGS observations produce an estimate of 371 ppm (21.7 grains per gallon), classified as very hard. This is not a tap measurement.

Do I need a water softener in ZIP code 45502?

At 371 ppm, a correctly sized whole-house softener can reduce scale buildup and hard-water spotting. Treatment for hardness does not remove all health-related contaminants.

City water profile

Springfield water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Springfield, Ohio.

Median indexed hardness

369PPM

6 indexed ZIPs

Range 369–371 PPM

State comparison: 143 PPM above
State hardness rank: #9 of 119
Matched utilities: 1
Active health records: 0

City summary

What the indexed records say

Springfield has 6 published ZIP profiles across Clark County. The indexed median is 369 PPM, compared with 226 PPM across Ohio.

Among the 119 Ohiocities with an indexed median, Springfield ranks #9from highest to lowest. Across all 162 state ZIP profiles, available estimates run from 77.2to 387 PPM.

The 369–371 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs

Moderately hard0 ZIPs

Hard0 ZIPs

Very hard6 ZIPs

6 of 6 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: 3.3 miles
Profiles with evidence: 6/6

Confidence labels

High: 0Moderate: 6Low: 0

Springfield City Pws

PWSID OH1204412

Groundwater

System population served: 60,680
Last reported: May 15, 2026

A municipal system, in-state city, and served county all agree with this Census ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

Record	System	Period	Status
Consumer Confidence Rule	OH1204412	Oct 18, 2021	Unaddressed
Consumer Confidence Rule	OH1204412	Jan 24, 2020	Unaddressed

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Ohio communities

New Carlisle

Clark County

367 PPM median

Waverly

Pike County

369 PPM median

Johnstown

Licking County

370 PPM median

Xenia

Greene County

367 PPM median

Chillicothe

Ross County

367 PPM median

Loveland

Clermont County

365 PPM median

Search all 119 Ohio cities →

Questions people ask

About water in Springfield

Is the water hard?

The indexed city median is 369 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.