Tap Water Quality Report
Tap water quality in PORT ARTHUR, Texas
Tap water in PORT ARTHUR, Texas receives a grade of D (67/100) from TapWaterSafety.org. It's served by CITY OF PORT ARTHUR. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Bromochloroacetic acid significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in PORT ARTHUR's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving PORT ARTHUR.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 24.8 ppb, 413x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 22.7 ppb, 227x above the EWG health guideline of 0.1 ppb.
Bromochloroacetic acid significantly above health guideline
Moderate concernBromochloroacetic acid detected at 3.93 ppb, 197x above the EWG health guideline of 0.02 ppb.
Recommended filters for PORT ARTHUR
Filters matched to the specific contaminants in PORT ARTHUR's water supply.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
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 PORT ARTHUR'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 |
24.8 ppb | 0.06 | — | — | — | — | — | 413× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
22.7 ppb | 0.1 | 60.0 | 60 | — | — | — | 227× over |
| Bromochloroacetic acid Disinfection byproduct |
3.93 ppb | 0.02 | — | — | — | — | — | 197× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
23.3 ppb | 0.15 | 80.0 | 100 | — | — | — | 155× over |
| Bromodichloromethane Disinfection byproduct |
6.42 ppb | 0.06 | — | — | — | — | — | 107× over |
| Dichloroacetic acid Disinfection byproduct |
15.8 ppb | 0.2 | — | — | — | — | — | 79× over |
| Trichloroacetic acid Disinfection byproduct |
4.21 ppb | 0.1 | — | — | — | — | — | 42× over |
| Chloroform Disinfection byproduct |
14.4 ppb | 0.4 | — | — | — | — | — | 36× over |
| Dibromoacetic acid Disinfection byproduct |
0.952 ppb | 0.03 | — | — | — | — | — | 32× over |
| Dibromochloromethane Disinfection byproduct |
2.45 ppb | 0.1 | — | — | — | — | — | 24× over |
| Chlorite Disinfection byproduct |
717.7 ppb | 50.0 | 1000.0 | — | — | — | — | 14× over |
| Chlorate Disinfection byproduct |
201.0 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Nitrate Inorganic |
0.03 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | Below guideline |
| Barium Heavy metal |
39.1 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
1.69 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
0.178 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
0.298 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
1.83 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.0791 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Cyanide Inorganic |
86.7 ppb | — | 200.0 | 50 | 70 | 150 | — | Fails EU |
| Fluoride Inorganic |
0.46 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Hexadecanoic acid Other |
17.3 ppb | — | — | — | — | — | — | Below guideline |
| Octadecanoic acid Other |
34.9 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.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from CITY OF PORT ARTHUR.