What contaminants are in EVANSVILLE tap water?

Public data sources identify the following contaminants in EVANSVILLE's water supply: Haloacetic acids (HAA9), Haloacetic acids (HAA5), Total trihalomethanes (TTHMs), Nitrate, Nitrate and nitrite, Chromium (hexavalent), Atrazine, 1,4-Dioxane, Chlorate, Molybdenum, Manganese, Vanadium, 2,4-D, Strontium, Fluoride, Lithium. Levels and comparison to EWG health guidelines are listed on the full city page.

Which water utility serves EVANSVILLE?

EVANSVILLE is served by EVANSVILLE WATER UTILITY. EVANSVILLE WATER UTILITY serves approximately 182,444 residents.

Tap Water Quality Report

Tap water quality in EVANSVILLE, Indiana

Q: Is the tap water in EVANSVILLE, Indiana safe to drink?

EVANSVILLE's tap water receives a grade of B (86/100) from TapWaterSafety.org. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline, Haloacetic acids (HAA5) significantly above health guideline, Total trihalomethanes (TTHMs) significantly above health guideline. Grades are based on EPA SDWIS, EPA ECHO, EWG Tap Water Database, and the utility's published Consumer Confidence Report.

Served by EVANSVILLE WATER UTILITY. 182,444 residents.

Average score 86/100

Utilities 1

Population 182,444

86/100

Good

ⓘ How did we get this rating?

Quick answer

Tap water in EVANSVILLE, Indiana receives a grade of B (86/100) from TapWaterSafety.org. It's served by EVANSVILLE WATER UTILITY. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.

Data sources for this grade: utilities.csv EWG Tap Water Database ⓘ How did we get this rating?

What's in EVANSVILLE's tap water

Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving EVANSVILLE.

Haloacetic acids (HAA9) significantly above health guideline

Moderate concern

Haloacetic acids (HAA9) detected at 37.8 ppb, 630x above the EWG health guideline of 0.06 ppb.

Haloacetic acids (HAA5) significantly above health guideline

Moderate concern

Haloacetic acids (HAA5) detected at 28.9 ppb, 289x above the EWG health guideline of 0.1 ppb.

Total trihalomethanes (TTHMs) significantly above health guideline

Moderate concern

Total trihalomethanes (TTHMs) detected at 39.9 ppb, 266x above the EWG health guideline of 0.15 ppb.

EPA compliance record

Official U.S. EPA records for EVANSVILLE WATER UTILITY (system ID IN5282002) for the last 3 years. Checked 2026-10-07.

No EPA violations in the last 3 years.

0 of 12quarters with a violation

Nolead above EPA action level

08/20/2025last state inspection

Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.

Recommended filters for EVANSVILLE

Filters matched to the specific contaminants in EVANSVILLE's water supply.

Carbon filter certified for VOCs (NSF/ANSI 53)

$180-$599

Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.

Aquasana AQ-5300 Under-Sink Filter

$180-$240 NSF 42, 53, 401, 372

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All contaminants detected in EVANSVILLE's tap water

Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →

Contaminant	Detected	EWG US health-based	EPA US legal	EU DWD Europe	WHO global	CA PHG strictest US	Tested sample year	Status
Haloacetic acids (HAA9) Disinfection byproduct	37.8 ppb	0.06	—	—	—	—	—	630× over
Haloacetic acids (HAA5) Disinfection byproduct	28.9 ppb	0.1	60.0	60	—	—	—	289× over
Total trihalomethanes (TTHMs) Disinfection byproduct	39.9 ppb	0.15	80.0	100	—	—	—	266× over
Nitrate Inorganic	0.99 ppm	0.14	10.0	11.3	11.3	10	—	7.1× over
Nitrate and nitrite Inorganic	0.99 ppm	0.14	10.0	11.3	11.3	10	—	7.1× over
Chromium (hexavalent) Heavy metal	0.0875 ppb	0.02	—	—	—	—	—	4.4× over
Atrazine Pesticide/Herbicide	0.0917 ppb	0.1	3.0	0.1	100	0.15	—	Below guideline
1,4-Dioxane Semi-volatile organic compound	0.168 ppb	0.35	—	—	50	1	—	Below guideline
Chlorate Disinfection byproduct	74.1 ppb	210.0	—	—	—	—	—	Below guideline
Molybdenum Other	2.08 ppb	40.0	—	—	—	—	—	Below guideline
Manganese Heavy metal	2.6 ppb	100.0	—	50	80	—	—	Below guideline
Vanadium Other	0.188 ppb	21.0	—	—	—	—	—	Below guideline
2,4-D Pesticide/Herbicide	0.0667 ppb	20.0	70.0	—	—	—	—	Below guideline
Strontium Radiological	0.233 ppb	1500.0	—	—	—	—	—	Below guideline
Fluoride Inorganic	0.613 ppm	—	4.0	1.5	1.5	—	—	Below guideline
Lithium Other	6.25 ppb	—	—	—	—	—	—	Below guideline

All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.

Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.