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City water profile

Twin Lakes water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Twin Lakes, Wisconsin.

Median indexed hardness

411PPM

One indexed ZIP

Range 411–411 PPM

State comparison
123 PPM above
State hardness rank
#34 of 479
Matched utilities
10
Active health records
0

City summary

What the indexed records say

Twin Lakes has 1 published ZIP profile across Kenosha County. The indexed median is 411 PPM, compared with 288 PPM across Wisconsin.

Among the 479 Wisconsincities with an indexed median, Twin Lakes ranks #34from highest to lowest. Across all 556 state ZIP profiles, available estimates run from 41.3to 467 PPM.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard1 ZIP

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
4.9 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: May 30, 2017 to Aug 5, 2024.

ZIP directory

Water reports in Twin Lakes

Open a ZIP for site-level provenance and measurements.

ZIP code

53181

Very Hard

411 PPM

Nearest site
4.9 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Tan Oak Apts

PWSID WI2301080

Groundwater
System population served
325
Last reported
May 29, 2026

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

Twin Lakes Park Water Coop

PWSID WI2300151

Groundwater
System population served
150
Last reported
May 29, 2026

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

Lakewood Village Apts

PWSID WI2300940

Groundwater
System population served
125
Last reported
May 29, 2026

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

Wywood Community Inc

PWSID WI2300152

Groundwater
System population served
59
Last reported
May 29, 2026

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

Twin Lakes Complex

PWSID WI2300619

Groundwater
System population served
50
Last reported
May 29, 2026

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

Meadowview Village Apts

PWSID WI2300172

Groundwater
System population served
48
Last reported
May 29, 2026

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

Lincoln Crest Apartments

PWSID WI2301743

Groundwater
System population served
32
Last reported
May 29, 2026

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

Holy Hill Apartments

PWSID WI2300140

Groundwater
System population served
32
Last reported
May 29, 2026

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

337-9 Holy Hill Apartments Llc

PWSID WI2300159

Groundwater
System population served
30
Last reported
May 29, 2026

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

425 Holy Hill Apts

PWSID WI2300163

Groundwater
System population served
28
Last reported
May 29, 2026

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

RecordSystemPeriodStatus
Combined Radium (-226 and -228)WI2300151Jan 1, 2026Archived · health-based
Revised Total Coliform RuleWI2300140Sep 1, 2025Resolved
Revised Total Coliform RuleWI2300163Sep 1, 2025Resolved
LEAD AND COPPER RULE REVISIONSWI2300151Jul 2, 2025Resolved
LEAD AND COPPER RULE REVISIONSWI2300159Jul 2, 2025Resolved
Revised Total Coliform RuleWI2301743Jan 1, 2025Resolved
Lead and Copper RuleWI2300159Jan 1, 2025Resolved
LEAD AND COPPER RULE REVISIONSWI2301080Oct 17, 2024Resolved
LEAD AND COPPER RULE REVISIONSWI2301080Oct 17, 2024Resolved · health-based
Public NoticeWI2301080Oct 17, 2024Unaddressed

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 Twin Lakes

Is the water hard?

The indexed city median is 411 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.