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City water profile

Cedar Hill water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Cedar Hill, Tennessee.

Median indexed hardness

176PPM

One indexed ZIP

Range 176–176 PPM

State comparison
126 PPM above
State hardness rank
#20 of 222
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Cedar Hill has 1 published ZIP profile across Robertson County. The indexed median is 176 PPM, compared with 50 PPM across Tennessee.

Among the 222 Tennesseecities with an indexed median, Cedar Hill ranks #20from highest to lowest. Across all 323 state ZIP profiles, available estimates run from 4.5to 247 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
Hard1 ZIP
Very hard0 ZIPs

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
17.4 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 1Low: 0

Observation window: Feb 14, 2024 to Jul 22, 2025.

ZIP directory

Water reports in Cedar Hill

Open a ZIP for site-level provenance and measurements.

ZIP code

37032

Hard

176 PPM

Nearest site
17.4 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

West Robertson Water Authority

PWSID TN0000001

Surface water
System population served
5,915
Last reported
May 14, 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
Consumer Confidence RuleTN0000001Jul 1, 2025Resolved
Public NoticeTN0000001Sep 11, 2021Unaddressed
Consumer Confidence RuleTN0000001Jul 1, 2021Resolved
TTHMTN0000001Jan 1, 2021Resolved · health-based
Public NoticeTN0000001Aug 26, 2017Unaddressed
Revised Total Coliform RuleTN0000001Apr 1, 2016Unaddressed

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 Cedar Hill

Is the water hard?

The indexed city median is 176 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.