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City water profile

Lafayette water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Lafayette, Indiana.

Median indexed hardness

300PPM

3 indexed ZIPs

Range 300–300 PPM

State comparison
13 PPM below
State hardness rank
#266 of 386
Matched utilities
6
Active health records
1

City summary

What the indexed records say

Lafayette has 3 published ZIP profiles across Tippecanoe County. The indexed median is 300 PPM, compared with 313 PPM across Indiana.

Among the 386 Indianacities with an indexed median, Lafayette ranks #266from highest to lowest. Across all 472 state ZIP profiles, available estimates run from 132to 371 PPM.

The 300–300 PPM range shows how much the available ZIP estimates vary within the city label. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard3 ZIPs

3 of 3 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
39 miles
Profiles with evidence
3/3

Confidence labels

High: 0Moderate: 0Low: 3

Observation window: Mar 30, 2016 to May 13, 2026.

ZIP directory

Water reports in Lafayette

Open a ZIP for site-level provenance and measurements.

ZIP code

47901

Very Hard

300 PPM

Nearest site
39.9 mi
Confidence
Low

View full ZIP evidence →

ZIP code

47904

Very Hard

300 PPM

Nearest site
39 mi
Confidence
Low

View full ZIP evidence →

ZIP code

47905

Very Hard

300 PPM

Nearest site
35.2 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Lafayette Water Works

PWSID IN5279013

Groundwater
System population served
70,835
Last reported
Jun 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Wildcat Highlands

PWSID IN5279026

Groundwater
System population served
360
Last reported
Jun 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Shadeland Mobile Home Park

PWSID IN5279017

Groundwater
System population served
200
Last reported
Jun 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Modernaire Trailer Court

PWSID IN5279014

Groundwater
System population served
105
Last reported
Jun 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Royal Oaks Estates Llc

PWSID IN5279016

Groundwater
System population served
95
Last reported
Jun 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Kings Ridge Homeowners Association

PWSID IN5279023

Groundwater
System population served
90
Last reported
Jun 30, 2026

The system names this served city; Census place overlap links the city to this ZCTA.

Compliance history

What EPA records show

1 unique active health-based record appears among associated systems. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Revised Total Coliform RuleIN5279013Jan 1, 2026Resolved
Lead and Copper RuleIN5279016Jan 1, 2026Unaddressed
E. COLIIN5279013Jul 13, 2025Resolved
Revised Total Coliform RuleIN5279013Jul 1, 2025Resolved
Consumer Confidence RuleIN5279017Jul 1, 2025Resolved
Consumer Confidence RuleIN5279023Jul 1, 2025Resolved
Lead and Copper RuleIN5279026Jan 1, 2025Resolved
Lead and Copper RuleIN5279026Aug 1, 2024Resolved
Consumer Confidence RuleIN5279026Jul 1, 2024Resolved
Consumer Confidence RuleIN5279014Jul 1, 2024Resolved

Practical next steps

Move from index to evidence

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

Questions people ask

About water in Lafayette

Is the water hard?

The indexed city median is 300 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.