What contaminants are in GREENVILLE tap water?

Public data sources identify the following contaminants in GREENVILLE's water supply: Haloacetic acids (HAA9), Haloacetic acids (HAA5), Total trihalomethanes (TTHMs), Trichloroacetic acid, Bromodichloromethane, Dichloroacetic acid, Chloroform, Dibromoacetic acid, Chromium (hexavalent), Nitrate, Chlorate, Manganese, Vanadium, Strontium, 4-Androstene-3,17-dione, Fluoride. Levels and comparison to EWG health guidelines are listed on the full city page.

Which water utility serves GREENVILLE?

GREENVILLE is served by GREENVILLE WATER (2310001). GREENVILLE WATER (2310001) serves approximately 396,265 residents.

Tap Water Quality Report

Tap water quality in GREENVILLE, South Carolina

Q: Is the tap water in GREENVILLE, South Carolina safe to drink?

GREENVILLE's tap water receives a grade of B (80/100) 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 GREENVILLE WATER (2310001). 396,265 residents.

Average score 80/100

Utilities 1

Population 396,265

80/100

Good

ⓘ How did we get this rating?

Quick answer

Tap water in GREENVILLE, South Carolina receives a grade of B (80/100) from TapWaterSafety.org. It's served by GREENVILLE WATER (2310001). 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 GREENVILLE's tap water

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

Haloacetic acids (HAA9) significantly above health guideline

Moderate concern

Haloacetic acids (HAA9) detected at 9.8 ppb, 163x above the EWG health guideline of 0.06 ppb.

Haloacetic acids (HAA5) significantly above health guideline

Moderate concern

Haloacetic acids (HAA5) detected at 10.2 ppb, 102x above the EWG health guideline of 0.1 ppb.

Total trihalomethanes (TTHMs) significantly above health guideline

Moderate concern

Total trihalomethanes (TTHMs) detected at 9.94 ppb, 66x above the EWG health guideline of 0.15 ppb.

EPA compliance record

Official U.S. EPA records for GREENVILLE WATER (2310001) (system ID SC2310001) for the last 3 years. Checked 2026-10-07.

No health-based violations. EPA recorded 2 quarters with a testing, reporting or notice violation.

2 of 12quarters with a violation

Nolead above EPA action level

12/11/2025last state inspection

Rule	Type	Since	Status
Consumer Confidence Rule	Other (e.g. public notice)	10/01/2025	Open

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 GREENVILLE

Filters matched to the specific contaminants in GREENVILLE'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.

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All contaminants detected in GREENVILLE'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	9.8 ppb	0.06	—	—	—	—	—	163× over
Haloacetic acids (HAA5) Disinfection byproduct	10.2 ppb	0.1	60.0	60	—	—	—	102× over
Total trihalomethanes (TTHMs) Disinfection byproduct	9.94 ppb	0.15	80.0	100	—	—	—	66× over
Trichloroacetic acid Disinfection byproduct	3.87 ppb	0.1	—	—	—	—	—	39× over
Bromodichloromethane Disinfection byproduct	1.87 ppb	0.06	—	—	—	—	—	31× over
Dichloroacetic acid Disinfection byproduct	6.27 ppb	0.2	—	—	—	—	—	31× over
Chloroform Disinfection byproduct	8.07 ppb	0.4	—	—	—	—	—	20× over
Dibromoacetic acid Disinfection byproduct	0.101 ppb	0.03	—	—	—	—	—	3.4× over
Chromium (hexavalent) Heavy metal	0.0512 ppb	0.02	—	—	—	—	—	2.6× over
Nitrate Inorganic	0.0307 ppm	0.14	10.0	11.3	11.3	10	—	Below guideline
Chlorate Disinfection byproduct	9.19 ppb	210.0	—	—	—	—	—	Below guideline
Manganese Heavy metal	0.846 ppb	100.0	—	50	80	—	—	Below guideline
Vanadium Other	0.156 ppb	21.0	—	—	—	—	—	Below guideline
Strontium Radiological	0.0118 ppb	1500.0	—	—	—	—	—	Below guideline
4-Androstene-3,17-dione Other	0.08 ppt	—	—	—	—	—	—	Below guideline
Fluoride Inorganic	0.623 ppm	—	4.0	1.5	1.5	—	—	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.