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City water profile

Williamsport water quality

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

Median indexed hardness

292PPM

One indexed ZIP

Range 292–292 PPM

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

City summary

What the indexed records say

Williamsport has 1 published ZIP profile across Warren County. The indexed median is 292 PPM, compared with 313 PPM across Indiana.

Among the 386 Indianacities with an indexed median, Williamsport ranks #279from highest to lowest. Across all 472 state ZIP profiles, available estimates run from 132to 371 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. 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 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
41.6 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Mar 30, 2016 to Sep 2, 2025.

ZIP directory

Water reports in Williamsport

Open a ZIP for site-level provenance and measurements.

ZIP code

47993

Very Hard

292 PPM

Nearest site
41.6 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Williamsport Water Utility

PWSID IN5286004

Groundwater
System population served
1,800
Last reported
Jun 30, 2026

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

Pence Water Works

PWSID IN5286002

Groundwater
System population served
37
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
Lead and Copper RuleIN5286002Jan 1, 2026Unaddressed
Consumer Confidence RuleIN5286002Oct 1, 2025Unaddressed
Lead and Copper RuleIN5286002Oct 1, 2025Resolved
Stage 1 Disinfectants and Disinfection Byproducts RuleIN5286002Sep 5, 2025Resolved · health-based
Consumer Confidence RuleIN5286002Jul 1, 2025Unaddressed
Total Haloacetic Acids (HAA5)IN5286002Jan 1, 2025Archived
TTHMIN5286002Jan 1, 2025Archived
Consumer Confidence RuleIN5286002Oct 1, 2023Resolved
Consumer Confidence RuleIN5286002Jul 1, 2023Resolved
Stage 1 Disinfectants and Disinfection Byproducts RuleIN5286002Feb 3, 2023Resolved · health-based

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 Williamsport

Is the water hard?

The indexed city median is 292 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.