Tap Water Quality Report
Tap water quality in FLOWER MOUND, Texas
Tap water in FLOWER MOUND, Texas receives a grade of D (69/100) from TapWaterSafety.org. It's served by TOWN OF FLOWER MOUND. 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 FLOWER MOUND's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving FLOWER MOUND.
PFAS contamination
Severe concernPerfluorooctanoic acid (PFOA) 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 10.5 ppb, 176x above the EWG health guideline of 0.06 ppb.
Bromochloroacetic acid significantly above health guideline
Moderate concernBromochloroacetic acid detected at 2.51 ppb, 125x above the EWG health guideline of 0.02 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 15.6 ppb, 104x above the EWG health guideline of 0.15 ppb.
EPA compliance record
Official U.S. EPA records for TOWN OF FLOWER MOUND (system ID TX0610023) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Lead and Copper Rule Revisions | Missed reporting | 07/02/2025 | Resolved |
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 FLOWER MOUND
Filters matched to the specific contaminants in FLOWER MOUND'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.
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 FLOWER MOUND'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 |
10.5 ppb | 0.06 | — | — | — | — | — | 176× over |
| Bromochloroacetic acid Disinfection byproduct |
2.51 ppb | 0.02 | — | — | — | — | — | 125× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
15.6 ppb | 0.15 | 80.0 | 100 | — | — | — | 104× over |
| Bromodichloromethane Disinfection byproduct |
4.42 ppb | 0.06 | — | — | — | — | — | 74× over |
| Dibromoacetic acid Disinfection byproduct |
1.8 ppb | 0.03 | — | — | — | — | — | 60× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
6.0 ppb | 0.1 | 60.0 | 60 | — | — | — | 60× over |
| Dibromochloromethane Disinfection byproduct |
4.97 ppb | 0.1 | — | — | — | — | — | 50× over |
| Dichloroacetic acid Disinfection byproduct |
3.29 ppb | 0.2 | — | — | — | — | — | 16× over |
| Chloroform Disinfection byproduct |
4.35 ppb | 0.4 | — | — | — | — | — | 11× over |
| Chromium (hexavalent) Heavy metal |
0.111 ppb | 0.02 | — | — | — | — | — | 5.5× over |
| Nitrate Inorganic |
0.668 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 4.8× over |
| Perfluorooctanoic acid (PFOA) PFAS |
0.4 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 4.4× over |
| Bromoform Disinfection byproduct |
1.84 ppb | 0.5 | — | — | — | — | — | 3.7× over |
| Bromochloromethane Other |
0.143 ppb | 0.06 | — | — | — | — | — | 2.4× over |
| Chlorate Disinfection byproduct |
326.3 ppb | 210.0 | — | — | — | — | — | 1.6× over |
| Trichloroacetic acid Disinfection byproduct |
0.126 ppb | 0.1 | — | — | — | — | — | 1.3× over |
| 1,4-Dioxane Semi-volatile organic compound |
0.0282 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Molybdenum Other |
2.06 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
2.4 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.746 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
8.16 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
6.76 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
6.49 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
4.08 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.0458 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Perfluoroheptanoic acid (PFHPA) PFAS |
0.282 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.294 ppb | 1500.0 | — | — | — | — | — | 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 TOWN OF FLOWER MOUND.