Tap Water Quality Report
Tap water quality in Arlington, Texas
Tap water in Arlington, Texas receives a grade of D (69/100) from TapWaterSafety.org. It's served by CITY OF ARLINGTON. The most significant water quality concerns are: PFAS contamination; Arsenic significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Bromochloroacetic acid significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in Arlington's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving Arlington.
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Arsenic significantly above health guideline
Moderate concernArsenic detected at 0.7 ppb, 175x above the EWG health guideline of 0.004 ppb.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 9.2 ppb, 153x above the EWG health guideline of 0.06 ppb.
Bromochloroacetic acid significantly above health guideline
Moderate concernBromochloroacetic acid detected at 2.37 ppb, 119x above the EWG health guideline of 0.02 ppb.
EPA compliance record
Official U.S. EPA records for CITY OF ARLINGTON (system ID TX2200001) for the last 3 years. Checked 2026-10-07.
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 Arlington
Filters matched to the specific contaminants in Arlington's water supply.
Filter certified for PFOA/PFOS (NSF/ANSI 53 or 58)
$180-$750Reverse osmosis and some carbon block filters reduce PFAS. Look for certification to NSF/ANSI 53 or 58 for PFOA/PFOS.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in Arlington'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 |
|---|---|---|---|---|---|---|---|---|
| Arsenic Heavy metal |
0.7 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 175× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
9.2 ppb | 0.06 | — | — | — | — | — | 153× over |
| Bromochloroacetic acid Disinfection byproduct |
2.37 ppb | 0.02 | — | — | — | — | — | 119× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
10.5 ppb | 0.15 | 80.0 | 100 | — | — | — | 70× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
6.25 ppb | 0.1 | 60.0 | 60 | — | — | — | 63× over |
| Bromodichloromethane Disinfection byproduct |
3.22 ppb | 0.06 | — | — | — | — | — | 54× over |
| Dibromoacetic acid Disinfection byproduct |
1.59 ppb | 0.03 | — | — | — | — | — | 53× over |
| Dibromochloromethane Disinfection byproduct |
3.6 ppb | 0.1 | — | — | — | — | — | 36× over |
| Bromate Disinfection byproduct |
2.18 ppb | 0.1 | 10.0 | 10 | 10 | 0.1 | — | 22× over |
| Dichloroacetic acid Disinfection byproduct |
3.57 ppb | 0.2 | — | — | — | — | — | 18× over |
| Chloroform Disinfection byproduct |
2.5 ppb | 0.4 | — | — | — | — | — | 6.2× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
1.6 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 5.3× over |
| Nitrate Inorganic |
0.365 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 2.6× over |
| Bromoform Disinfection byproduct |
1.1 ppb | 0.5 | — | — | — | — | — | 2.2× over |
| Chromium (hexavalent) Heavy metal |
0.00807 ppb | 0.02 | — | — | — | — | — | Below guideline |
| Bromochloromethane Other |
0.0233 ppb | 0.06 | — | — | — | — | — | Below guideline |
| Atrazine Pesticide/Herbicide |
0.0333 ppb | 0.1 | 3.0 | 0.1 | 100 | 0.15 | — | Below guideline |
| Trichloroacetic acid Disinfection byproduct |
0.0299 ppb | 0.1 | — | — | — | — | — | Below guideline |
| Aluminum Heavy metal |
62.8 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Barium Heavy metal |
48.7 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Vanadium Other |
1.11 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
1.58 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.928 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
1.54 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.142 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
5.56 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
4.01 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
3.68 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
3.06 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.28 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Chlorodifluoromethane Other |
1.26 ppb | — | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
0.833 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Cyanide Inorganic |
67.4 ppb | — | 200.0 | 50 | 70 | 150 | — | Fails EU |
| Fluoride Inorganic |
0.332 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Nitrite Inorganic |
0.0288 ppm | — | 1.0 | — | — | — | — | 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.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from CITY OF ARLINGTON.