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Vanderburgh County, Indiana Water Quality Report

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Evansville Water and Sewer Utility

2025 report; individual sample dates shown

For the Evansville Water and Sewer Utility system. Confirm your supplier before using these results for a Vanderburgh County address.

Your water at a glance

See the amount, the comparison and what it means. “Below” refers to the stated benchmark, not zero risk.

Hardness

Hard

138ppm

2025 average; about 8.1 gpg

Confirm incoming hardness for softener settings.

2025View source

Chlorine / chloramines

Below 4 ppm MRDL

3ppm

Reported amount; total residual

Individual range: 0.5–3.6 ppm.

2025View source

TTHMs

Below 80 ppb MCL

49ppb

Highest reported locational running annual average

2025View source

HAA5

Below 60 ppb MCL

37ppb

Highest reported locational running annual average

2025View source

Fluoride

Below 4 ppm MCL

0.80ppm

Maximum of plant samples

Plant sample average: 0.69 ppm.

2025View source

Lead

Below the report’s 15 ppb action level

1ppb

90th percentile at sampled taps

Converted from the report’s 0.001 ppm percentile.

2024View source

Copper

Below the report’s 1.3 ppm action level

≤0.025ppm

90th percentile at sampled taps

A utility percentile is not a test at your tap.

2024View source

Nitrate

Below 10 ppm MCL

3.20ppm

Maximum of plant samples

Plant sample average: 2.00 ppm.

2025View source

Water hardness by provider

The figures below are provider-specific. They are not a countywide average.

UtilityHardnessHardness source
138 ppm average · hard2025
View Full Water ReportOpen the measured results, dates, comparisons and original utility report.

The numbers behind your report

Selected results with the original sampling dates and measurement basis. Open the utility report for every parameter, notice and footnote.

Open the complete utility report ↗

What was measuredReported amountSample year / source dateHow to read it
Hardness138 ppm2025 average; about 8.1 gpg2025View source ↗HardConfirm incoming hardness for softener settings.
Chlorine / chloramines3 ppmReported amount; total residual2025View source ↗Below 4 ppm MRDLIndividual range: 0.5–3.6 ppm.
TTHMs49 ppbHighest reported locational running annual average2025View source ↗Below 80 ppb MCL
HAA537 ppbHighest reported locational running annual average2025View source ↗Below 60 ppb MCL
Fluoride0.80 ppmMaximum of plant samples2025View source ↗Below 4 ppm MCLPlant sample average: 0.69 ppm.
Lead1 ppb90th percentile at sampled taps2024View source ↗Below the report’s 15 ppb action levelConverted from the report’s 0.001 ppm percentile.
Copper≤0.025 ppm90th percentile at sampled taps2024View source ↗Below the report’s 1.3 ppm action levelA utility percentile is not a test at your tap.
Nitrate3.20 ppmMaximum of plant samples2025View source ↗Below 10 ppm MCLPlant sample average: 2.00 ppm.

In drinking water, ppm ≈ mg/L, ppb ≈ µg/L and ppt ≈ ng/L. Calculated hardness in grains per US gallon (gpg) = mg/L as CaCO₃ ÷ 17.118, rounded to one decimal. ND means below the reporting limit, not zero.

MCL is an enforceable contaminant limit; MRDL is a disinfectant limit. A secondary guideline concerns aesthetics. TTHM/HAA5 compliance uses locational running annual averages; read the utility’s notices as well as individual results.

PFAS results are compound-specific. Source monitoring, entry-point samples and tap tests are different. A detected result does not identify every PFAS compound or establish the level at your home. Read the original report for context and current utility notices. EPA PFAS benchmarks and implementation ↗

Hardness source ↗USGS hardness classification ↗

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Source water. Ohio River water is treated, filtered and disinfected. Ammonia is added to form chloramines for distribution.

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More about your local water

What this means for your home

The Evansville utility’s 2025 average hardness is 138 ppm. A plumber can use a current incoming-water test, household flow demand and existing equipment to finalize the installation.

Filtration can be selected for disinfectant taste, odor and other documented reduction goals. Softening targets hardness minerals that cause scale. Evansville uses chloramines, so verify the exact filter’s chloramine performance as well as your incoming hardness.

Filter vs. softener: what each doesPlan installation with your plumber

A useful local question

What is the difference between filtration and softening in Evansville?

Filtration can be selected for disinfectant taste, odor and other documented reduction goals. Softening targets hardness minerals that cause scale. Evansville uses chloramines, so verify the exact filter’s chloramine performance as well as your incoming hardness.

Sources and methodology

We keep each utility’s results separate, show the reported sample year, and distinguish averages, maxima and tap-sampling percentiles. Hardness classifications use USGS ranges. Missing data stays unknown.

Official utility reports

Confirm the exact system on your water bill. Choose Other / not sure when your supplier is not summarized here.

Sources reviewed November 10, 2026. Individual sampling dates are shown with each result.

Your water → your home → your system

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Choose the system size, keep useful existing equipment, and review your filtration goals.

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