Water Quality Report · Updated October 07, 2026
MUSTANG SUD
MUSTANG SUD delivers tap water graded C (65/100) by TapWaterSafety.org. The utility serves approximately 110,826 residents in AUBREY, Texas using surface water (purchased). The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Bromochloroacetic acid significantly above health guideline; Arsenic detected. For questions, the utility can be reached at 940-440-9561.
Is AUBREY tap water safe to drink?
MUSTANG SUD delivers tap water that earns a grade of C (65/100) from TapWaterSafety.org — an average rating, with several contaminants above health guidelines but generally compliant with US legal limits.
The utility serves 110,826 residents in AUBREY, drawing from surface water (purchased).
Public testing data identifies 15 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Bromochloroacetic acid, Haloacetic acids (HAA5), Bromodichloromethane, Bromate*, Arsenic, Trichloroacetic acid, Dichloroacetic acid, Chloroform, Dibromochloromethane, Dibromoacetic acid, Nitrate and nitrite, Bromoform, Nitrate. 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.
EPA compliance record
Official U.S. EPA records for MUSTANG SUD (system ID TX0610036) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Public Notice Rule and Revised PN Rule | Other (e.g. public notice) | 09/06/2020 | Open |
| Lead and Copper Rule Revisions | Missed reporting | 07/02/2025 | Resolved |
| Lead and Copper Rule | Missed testing or reporting | 07/01/2024 | Resolved |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Quick actions for AUBREY residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for MUSTANG SUD.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 14.0 ppb, 233x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 23.0 ppb, 153x above the EWG health guideline of 0.15 ppb.
Bromochloroacetic acid significantly above health guideline
Moderate concernBromochloroacetic acid detected at 2.43 ppb, 122x above the EWG health guideline of 0.02 ppb.
Arsenic detected
Moderate concernArsenic detected at 0.2 ppb.
Contact MUSTANG SUD
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 AUBREY
Filters matched to the specific contaminants in this water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Reverse osmosis certified for arsenic (NSF/ANSI 58)
$429-$599Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.
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 65/100 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 |
14.0 ppb | 0.06 | — | — | — | — | — | 233× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
23.0 ppb | 0.15 | 80.0 | 100 | — | — | — | 153× over |
| Bromochloroacetic acid Disinfection byproduct |
2.43 ppb | 0.02 | — | — | — | — | — | 122× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
11.6 ppb | 0.1 | 60.0 | 60 | — | — | — | 116× over |
| Bromodichloromethane Disinfection byproduct |
4.19 ppb | 0.06 | — | — | — | — | — | 70× over |
| Bromate* Disinfection byproduct |
5.77 ppb | 0.1 | 10.0 | 10 | 10 | 0.1 | — | 58× over |
| Arsenic Heavy metal |
0.2 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 50× over |
| Trichloroacetic acid Disinfection byproduct |
3.43 ppb | 0.1 | — | — | — | — | — | 34× over |
| Dichloroacetic acid Disinfection byproduct |
6.55 ppb | 0.2 | — | — | — | — | — | 33× over |
| Chloroform Disinfection byproduct |
9.5 ppb | 0.4 | — | — | — | — | — | 24× over |
| Dibromochloromethane Disinfection byproduct |
2.45 ppb | 0.1 | — | — | — | — | — | 24× over |
| Dibromoacetic acid Disinfection byproduct |
0.645 ppb | 0.03 | — | — | — | — | — | 21× over |
| Nitrate and nitrite Inorganic |
0.519 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 3.7× over |
| Bromoform Disinfection byproduct |
0.602 ppb | 0.5 | — | — | — | — | — | 1.2× over |
| Nitrate Inorganic |
0.147 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 1.0× over |
| Atrazine* Pesticide/Herbicide |
0.0733 ppb | 0.1 | 3.0 | 0.1 | 100 | 0.15 | — | Below guideline |
| Simazine* Pesticide/Herbicide |
0.0159 ppb | 0.1 | 4.0 | — | — | — | — | Below guideline |
| Barium Heavy metal |
18.5 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Aluminum Heavy metal |
10.4 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.887 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.0681 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
0.147 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Chromium (total) Heavy metal |
3.28 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Cyanide Inorganic |
10.4 ppb | — | 200.0 | 50 | 70 | 150 | — | Below guideline |
| Ethanethiol Other |
0.567 ppb | — | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.314 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Metolachlor* Pesticide/Herbicide |
0.02 ppb | — | — | — | — | — | — | Below guideline |
| Nitrite Inorganic |
0.206 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
MUSTANG SUD 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 AUBREY water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.