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City water profile

Lawrenceville water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Lawrenceville, Illinois.

Median indexed hardness

306PPM

One indexed ZIP

Range 306–306 PPM

State comparison
21 PPM above
State hardness rank
#313 of 913
Matched utilities
1
Active health records
2

City summary

What the indexed records say

Lawrenceville has 1 published ZIP profile across Lawrence County. The indexed median is 306 PPM, compared with 285 PPM across Illinois.

Among the 913 Illinoiscities with an indexed median, Lawrenceville ranks #313from highest to lowest. Across all 1,065 state ZIP profiles, available estimates run from 115to 408 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
45.6 miles
Profiles with evidence
1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Aug 8, 2019 to Sep 5, 2019.

ZIP directory

Water reports in Lawrenceville

Open a ZIP for site-level provenance and measurements.

ZIP code

62439

Very Hard

306 PPM

Nearest site
45.6 mi
Confidence
Low

View full ZIP evidence →

Public water systems

Utilities associated with this city

Lawrenceville

PWSID IL1010150

Groundwater
System population served
4,524
Last reported
May 27, 2026

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

Compliance history

What EPA records show

2 unique active health-based records appear among associated systems. This does not mean every contaminant was tested at every tap.

RecordSystemPeriodStatus
Lead and Copper RuleIL1010150Jan 1, 2026Unaddressed
LEAD AND COPPER RULE REVISIONSIL1010150Jul 2, 2025Unaddressed
Lead and Copper RuleIL1010150Jul 1, 2025Unaddressed
Public NoticeIL1010150Feb 23, 2025Resolved
Total Haloacetic Acids (HAA5)IL1010150Jan 1, 2025Archived
Lead and Copper RuleIL1010150Jan 1, 2025Unaddressed
TTHMIL1010150Jan 1, 2025Archived
Lead and Copper RuleIL1010150Apr 2, 2024Unaddressed · health-based
Lead and Copper RuleIL1010150Dec 1, 2023Unaddressed · health-based
Lead and Copper RuleIL1010150Oct 1, 2023Resolved

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 Lawrenceville

Is the water hard?

The indexed city median is 306 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.