Tap Water Quality Report
Tap water quality in GRAND PRAIRIE, Texas
Tap water in GRAND PRAIRIE, Texas receives a grade of D (61/100) from TapWaterSafety.org. It's served by CITY OF GRAND PRAIRIE. The most significant water quality concerns are: PFAS contamination; Haloacetic acids (HAA9) significantly above health guideline; Bromochloroacetic acid significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in GRAND PRAIRIE's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving GRAND PRAIRIE.
PFAS contamination
Severe concernPerfluorooctane sulfonate (PFOS) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 17.9 ppb, 299x above the EWG health guideline of 0.06 ppb.
Bromochloroacetic acid significantly above health guideline
Moderate concernBromochloroacetic acid detected at 4.24 ppb, 212x above the EWG health guideline of 0.02 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 21.3 ppb, 142x above the EWG health guideline of 0.15 ppb.
Recommended filters for GRAND PRAIRIE
Filters matched to the specific contaminants in GRAND PRAIRIE's water supply.
Reverse Osmosis or NSF P473 certified carbon
$80-$750Activated carbon and RO are the only technologies proven to remove PFAS at certified levels.
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 GRAND PRAIRIE'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 |
17.9 ppb | 0.06 | — | — | — | — | — | 299× over |
| Bromochloroacetic acid Disinfection byproduct |
4.24 ppb | 0.02 | — | — | — | — | — | 212× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
21.3 ppb | 0.15 | 80.0 | 100 | — | — | — | 142× over |
| Bromodichloromethane Disinfection byproduct |
6.67 ppb | 0.06 | — | — | — | — | — | 111× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
10.5 ppb | 0.1 | 60.0 | 60 | — | — | — | 105× over |
| Dibromoacetic acid Disinfection byproduct |
2.88 ppb | 0.03 | — | — | — | — | — | 96× over |
| Dibromochloromethane Disinfection byproduct |
6.4 ppb | 0.1 | — | — | — | — | — | 64× over |
| Radium, combined (-226 and -228) Radiological |
1.5 pCi/L | 0.05 | 5.0 | — | — | — | — | 30× over |
| Dichloroacetic acid Disinfection byproduct |
5.65 ppb | 0.2 | — | — | — | — | — | 28× over |
| Chloroform Disinfection byproduct |
5.69 ppb | 0.4 | — | — | — | — | — | 14× over |
| Chromium (hexavalent) Heavy metal |
0.179 ppb | 0.02 | — | — | — | — | — | 9.0× over |
| Trichloroacetic acid Disinfection byproduct |
0.659 ppb | 0.1 | — | — | — | — | — | 6.6× over |
| Bromoform Disinfection byproduct |
2.51 ppb | 0.5 | — | — | — | — | — | 5.0× over |
| Nitrate and nitrite Inorganic |
0.68 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 4.9× over |
| Nitrate Inorganic |
0.52 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 3.7× over |
| Perfluorooctane sulfonate (PFOS) PFAS |
0.82 ppt | 0.3 | 4.0 | 100 | 100 | 1 | — | 2.7× over |
| Bromochloromethane Other |
0.0842 ppb | 0.06 | — | — | — | — | — | 1.4× over |
| Chlorate Disinfection byproduct |
167.1 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
1.54 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.441 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.896 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
1.5 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Vanadium Other |
0.191 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
7.02 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
4.42 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
4.02 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
2.22 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.38 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| 4-Androstene-3,17-dione Other |
0.286 ppt | — | — | — | — | — | — | Below guideline |
| Germanium Other |
0.025 ppb | — | — | — | — | — | — | Below guideline |
| Nitrite Inorganic |
0.41 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 GRAND PRAIRIE.