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Tap water quality report

Mustang Sud

EPA monitoring tested this supplier for 109 contaminants and detected 26. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
26
detected
110,826
people served
0
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
SWP
Ownership
Local government
Counties served
Denton

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

0
health-based violations
32
violations on file
1
still open
ViolationTypeStatusPeriod
Other Monitoring Resolved 2026-02-06
Other Monitoring Resolved 2026-02-06
RPT Monitoring Resolved 2025-07-02
MR Monitoring Resolved 2025-01-01 → 2025-06-30
MR Monitoring Resolved 2025-01-01 → 2025-06-30
MR Monitoring Resolved 2025-01-01 → 2025-06-30
MR Monitoring Resolved 2025-01-01 → 2025-06-30
MR Monitoring Resolved 2024-07-01 → 2024-12-31
MR Monitoring Resolved 2024-07-01 → 2024-12-31
MR Monitoring Resolved 2024-07-01 → 2024-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0064 µg/L 1/20 2025
Pfhxa 0.0037 µg/L 1/20 2025
Pfpea 0.0040 µg/L 1/20 2025

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
186 µg/L 14%
of the EPA limit 1300 µg/L
worst single sample: 740 µg/L
175/218 SYR4 2014–2019
Dibromochloromethane
6.57 µg/L
No EPA limit set
worst single sample: 9.68 µg/L
133/146 SYR4 2012–2019
Bromodichloromethane
15.395 µg/L
No EPA limit set
worst single sample: 31.3 µg/L
128/146 SYR4 2012–2019
Chloroform
30.285 µg/L
No EPA limit set
worst single sample: 41.9 µg/L
124/146 SYR4 2012–2019
Dichloroacetic Acid
20 µg/L
No EPA limit set
worst single sample: 37.6 µg/L
124/124 SYR4 2012–2019
TTHM
50.755 µg/L 63%
of the EPA limit 80 µg/L
worst single sample: 65.5 µg/L
124/124 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
35.795 µg/L 60%
of the EPA limit 60 µg/L
worst single sample: 86.8 µg/L
124/124 SYR4 2012–2019
Trichloroacetic Acid
12.705 µg/L
No EPA limit set
worst single sample: 44.9 µg/L
120/124 SYR4 2012–2019
Nitrate
595 µg/L 5.9%
of the EPA limit 10000 µg/L
worst single sample: 1660 µg/L
100/106 SYR4 2012–2019
Bromoform
4.523 µg/L
No EPA limit set
worst single sample: 13 µg/L
55/146 SYR4 2012–2019
Dibromoacetic Acid
2.6 µg/L
No EPA limit set
worst single sample: 3 µg/L
50/124 SYR4 2012–2019
Monochloroacetic Acid
4.61 µg/L
No EPA limit set
worst single sample: 4.9 µg/L
39/124 SYR4 2012–2019
Lead
7.9 µg/L 53%
of the EPA limit 15 µg/L
worst single sample: 13 µg/L
21/218 SYR4 2014–2019
Nitrate-Nitrite
706 µg/L 7.1%
of the EPA limit 10000 µg/L
worst single sample: 1660 µg/L
21/23 SYR4 2012–2015
Monobromoacetic Acid
4.96 µg/L
No EPA limit set
worst single sample: 5.5 µg/L
19/124 SYR4 2012–2019
Lead
0.0013 mg/L 8.9%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2025
Lithium
41.2 µg/L
No EPA limit set
 16/21 UCMR-5 2025
Barium
37 µg/L 1.9%
of the EPA limit 2000 µg/L
worst single sample: 40 µg/L
13/13 SYR4 2014–2019
Fluoride
995 µg/L 25%
of the EPA limit 4000 µg/L
worst single sample: 1600 µg/L
11/11 SYR4 2014–2017
Chromium
4.5 µg/L 4.5%
of the EPA limit 100 µg/L
 9/13 SYR4 2014–2019
Combined Radium (-226 And -228)
1.5 pCi/L 30%
of the EPA limit 5 pCi/L
 4/4 SYR4 2016
Cyanide
28.955 µg/L 14%
of the EPA limit 200 µg/L
worst single sample: 30.2 µg/L
2/11 SYR4 2014–2017
Arsenic
1 µg/L 10%
of the EPA limit 10 µg/L
 1/13 SYR4 2014–2019
83 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WALKER, MICHAEL
Phone
940-440-9561
Email
[email protected]

Frequently asked questions about Mustang Sud

Is Mustang Sud tap water safe to drink?

EPA monitoring detected 26 contaminants in Mustang Sud's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Mustang Sud's water?

EPA monitoring detected Copper, Dibromochloromethane, Bromodichloromethane, Chloroform, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Mustang Sud serve?

Mustang Sud reports serving 110,826 people in Texas, per its EPA record.

Has Mustang Sud had any water quality violations?

The EPA has 32 violations on file for Mustang Sud, of which 0 are health-based (a contaminant limit or required treatment was breached) and 1 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.