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Tap water quality report

Mills Road Mud

EPA monitoring tested this supplier for 109 contaminants and detected 22. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
22
detected
6,717
people served
0
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
SWP
Ownership
Local government
Counties served
Harris

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
2
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2025-12-30
MR Monitoring Resolved 2025-12-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfpea 0.0037 µg/L 1/4 2023

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
228 µg/L 18%
of the EPA limit 1300 µg/L
worst single sample: 243 µg/L
41/42 SYR4 2014–2017
Lead
2.195 µg/L 15%
of the EPA limit 15 µg/L
worst single sample: 3 µg/L
22/42 SYR4 2014–2017
Nitrate
170 µg/L 1.7%
of the EPA limit 10000 µg/L
 16/22 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2025
Dibromochloromethane
17.35 µg/L
No EPA limit set
worst single sample: 19 µg/L
12/20 SYR4 2012–2019
Bromodichloromethane
7.2 µg/L
No EPA limit set
worst single sample: 9.1 µg/L
11/20 SYR4 2012–2019
Bromoform
35.5 µg/L
No EPA limit set
worst single sample: 36 µg/L
11/20 SYR4 2012–2019
Barium
218.95 µg/L 11%
of the EPA limit 2000 µg/L
worst single sample: 220 µg/L
4/4 SYR4 2016–2019
Chloroform
2.745 µg/L
No EPA limit set
worst single sample: 3 µg/L
4/20 SYR4 2012–2019
Xylenes, Total
1.37 µg/L 0%
of the EPA limit 10000 µg/L
worst single sample: 1.4 µg/L
4/13 SYR4 2012–2019
Fluoride
2538 µg/L 63%
of the EPA limit 4000 µg/L
worst single sample: 2550 µg/L
3/3 SYR4 2014–2019
Arsenic
2.665 µg/L 27%
of the EPA limit 10 µg/L
worst single sample: 2.7 µg/L
2/4 SYR4 2016–2019
Dibromoacetic Acid
3.45 µg/L
No EPA limit set
worst single sample: 3.5 µg/L
2/7 SYR4 2013–2019
Nitrate-Nitrite
19.5 µg/L 0.2%
of the EPA limit 10000 µg/L
worst single sample: 20 µg/L
2/3 SYR4 2012–2015
Selenium
3.485 µg/L 7%
of the EPA limit 50 µg/L
worst single sample: 3.5 µg/L
2/4 SYR4 2016–2019
TTHM
34.115 µg/L 43%
of the EPA limit 80 µg/L
worst single sample: 34.7 µg/L
2/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
3.45 µg/L 5.8%
of the EPA limit 60 µg/L
worst single sample: 3.5 µg/L
2/7 SYR4 2013–2019
Lithium
37.8 µg/L
No EPA limit set
 2/4 UCMR-5 2023
Combined Uranium
3.6 µg/L 12%
of the EPA limit 30 µg/L
 1/3 SYR4 2016–2019
Di(2-ethylhexyl) Phthalate
2.4 µg/L 40%
of the EPA limit 6 µg/L
 1/6 SYR4 2015–2018
Gross Alpha, Excl. Radon And U
4 pCi/L 27%
of the EPA limit 15 pCi/L
 1/3 SYR4 2016–2019
87 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CARNEY, LARRY
Phone
281-376-8802

Frequently asked questions about Mills Road Mud

Is Mills Road Mud tap water safe to drink?

EPA monitoring detected 22 contaminants in Mills Road Mud'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 Mills Road Mud's water?

EPA monitoring detected Copper, Lead, Nitrate, Lead, Dibromochloromethane, and others. The full list with the level and data source for each is above.

How many people does Mills Road Mud serve?

Mills Road Mud reports serving 6,717 people in Texas, per its EPA record.

Has Mills Road Mud had any water quality violations?

The EPA has 2 violations on file for Mills Road Mud, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 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.