City water profile
Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Lawrence, Kansas.
Median indexed hardness
245PPM
5 indexed ZIPs
Range 245–245 PPM
City summary
Lawrence has 5 published ZIP profiles across Douglas County. The indexed median is 245 PPM, compared with 289 PPM across Kansas.
Among the 484 Kansascities with an indexed median, Lawrence ranks #293from highest to lowest. Across all 541 state ZIP profiles, available estimates run from 72.2to 707 PPM.
The 245–245 PPM range shows how much the available ZIP estimates vary within the city label.
Hardness distribution
5 of 5 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.
Evidence quality
Confidence labels
Observation window: Jan 11, 2016 to Jun 9, 2026.
ZIP directory
Open a ZIP for site-level provenance and measurements.
ZIP code
245 PPM
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ZIP code
245 PPM
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ZIP code
245 PPM
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ZIP code
245 PPM
View full ZIP evidence →
ZIP code
245 PPM
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Public water systems
PWSID KS2004503
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID KS2004513
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID KS2004502
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID KS2008704
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID KS2004506
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID KS2004515
The system names this served city; Census place overlap links the city to this ZCTA.
Compliance history
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 |
|---|---|---|---|
| LEAD AND COPPER RULE REVISIONS | KS2004513 | Jul 2, 2025 | Unaddressed |
| LEAD AND COPPER RULE REVISIONS | KS2004513 | Oct 17, 2024 | Resolved |
| Revised Total Coliform Rule | KS2008704 | Feb 1, 2024 | Resolved |
| Chlorine | KS2008704 | Jan 1, 2024 | Resolved |
| Groundwater Rule | KS2008704 | Sep 30, 2023 | Resolved |
Practical next steps
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Questions people ask
The indexed city median is 245 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.
Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.
Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.