Water Quality Report · Updated May 12, 2026
TOWN OF FLOWER MOUND
TOWN OF FLOWER MOUND delivers tap water graded D (61/100) by TapWaterSafety.org. The utility serves approximately 80,000 residents in FLOWER MOUND, Texas using surface water (purchased). 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. For questions, the utility can be reached at 972-874-6520.
Is FLOWER MOUND tap water safe to drink?
TOWN OF FLOWER MOUND delivers tap water that earns a grade of D (61/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including pfas contamination.
The utility serves 80,000 residents in FLOWER MOUND, drawing from surface water (purchased).
Public testing data identifies 16 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Bromochloroacetic acid, Total trihalomethanes (TTHMs), Bromodichloromethane, Dibromoacetic acid, Haloacetic acids (HAA5), Dibromochloromethane, Dichloroacetic acid, Chloroform, Chromium (hexavalent), Nitrate, Perfluorooctanoic acid (PFOA), Bromoform, Bromochloromethane, Chlorate, Trichloroacetic acid. For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
Quick actions for FLOWER MOUND residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for TOWN OF 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.
Contact TOWN OF FLOWER MOUND
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for FLOWER MOUND
Filters matched to the specific contaminants in this 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.
Score breakdown
This utility's overall score of 61/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
TOWN OF FLOWER MOUND service area
This water system serves 1 community in Denton County, Texas. Click any city for its dedicated tap water quality page.
Find the right filter for FLOWER MOUND water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.