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Water Hardness in 60512

Bristol, Illinois · Kendall County

259 PPM
15.2 GPG
Very Hard
0Soft60120180300+
High Confidence - USGS Monitoring

Dataset updated March 9, 2026Matched to 4 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 4 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis
3 USGS-backed sources
4 matched systems total for this ZIP; 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 Serving 60512

These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.

4 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.
Oswego
IL0930150
Hard
236 PPMgroundwater38,169 servedHigh Confidence - USGS Monitoring
Yorkville
IL0930250
Very Hard
284 PPMgroundwater23,000 servedEstimated - Nearby Data
Plano
IL0930200
Very Hard
284 PPMgroundwater12,600 servedHigh Confidence - USGS Monitoring
Storybook Highlands
IL0935250
Very Hard
284 PPMgroundwater100 servedHigh Confidence - USGS Monitoring

Nearby Zip Codes

605541486054525960506148605382286056025960543259605111486050514860542148605362596053914860119150

What This Means For You

Use this ZIP 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.

MethodologyData sourcesHow 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 Bristol, IL (60512).

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Frequently Asked Questions

Is the water hard in Bristol, IL (60512)?

The average water hardness in 60512 is 259 PPM (15.2 GPG), which is classified as very hard.

Do I need a water softener in 60512?

With hardness of 259 PPM, a water softener is recommended for homes in 60512.

Is hard water in 60512 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 60512?

Zip code 60512 in Bristol, Illinois is served by 4 water systems.

Learn More About Your Water

How to Test Water Hardness at Home

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Water Hardness Scale: PPM and GPG Chart

Use the USGS water hardness scale to compare PPM, GPG, and mg/L levels from soft to very hard water.

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Well Water Hardness: Why It's Usually Hard & How to Treat It

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