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City water profile

Anderson water quality

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

Median indexed hardness

312PPM

4 indexed ZIPs

Range 311.5–311.5 PPM

State comparison
1 PPM below
State hardness rank
#204 of 386
Matched utilities
2
Active health records
0

City summary

What the indexed records say

Anderson has 4 published ZIP profiles across Madison County. The indexed median is 312 PPM, compared with 313 PPM across Indiana.

Among the 386 Indianacities with an indexed median, Anderson ranks #204from highest to lowest. Across all 472 state ZIP profiles, available estimates run from 132to 371 PPM.

The 311.5–311.5 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 hard4 ZIPs

4 of 4 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
28.5 miles
Profiles with evidence
4/4

Confidence labels

High: 0Moderate: 1Low: 3

Observation window: Jan 5, 2016 to May 28, 2026.

ZIP directory

Water reports in Anderson

Open a ZIP for site-level provenance and measurements.

ZIP code

46011

Very Hard

311.5 PPM

Nearest site
28.5 mi
Confidence
Low

View full ZIP evidence →

ZIP code

46012

Very Hard

311.5 PPM

Nearest site
31.9 mi
Confidence
Low

View full ZIP evidence →

ZIP code

46013

Very Hard

311.5 PPM

Nearest site
24.6 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

46016

Very Hard

311.5 PPM

Nearest site
27.6 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Anderson Water Department

PWSID IN5248002

Groundwater influenced by surface water
System population served
55,212
Last reported
Jun 30, 2026

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

Edgewood Water Department

PWSID IN5248006

Groundwater
System population served
2,053
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

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 RuleIN5248006Oct 1, 2025Unaddressed
Revised Total Coliform RuleIN5248002Dec 1, 2024Resolved · health-based
Revised Total Coliform RuleIN5248002Oct 1, 2022Resolved
Revised Total Coliform RuleIN5248002Jan 11, 2022Resolved
Revised Total Coliform RuleIN5248002Jun 1, 2021Resolved

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 Anderson

Is the water hard?

The indexed city median is 312 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.