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Tap water quality report

Harris County Mud 53

EPA monitoring tested this supplier for 108 contaminants and detected 31. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

108
contaminants tested
31
detected
17,856
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
9
violations on file
1
still open
ViolationTypeStatusPeriod
Other Monitoring Unaddressed 2025-07-01
MR Monitoring Resolved 2016-10-01
MR Monitoring Resolved 2016-10-01
MR Monitoring Resolved 2016-10-01
MR Monitoring Resolved 2016-10-01
Other Monitoring Resolved 2015-07-01
Other Monitoring Resolved 2015-07-01
MR Monitoring Resolved 2013-12-30
MR Monitoring Resolved 1992-07-01 → 1993-06-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0078 µg/L 6/8 2024
Pfhxa 0.0070 µg/L 4/8 2024
Pfpea 0.0078 µg/L 3/8 2024
PFBS 0.0038 µg/L 2/8 2024
PFHXS 0.0040 µg/L 2/8 2024

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
22.4 µg/L
No EPA limit set
 133/138 SYR4 2012–2019
Chloroform
36.8 µg/L
No EPA limit set
 133/138 SYR4 2012–2019
Dichloroacetic Acid
47.1 µg/L
No EPA limit set
 123/128 SYR4 2012–2019
TTHM
67.8 µg/L 85%
of the EPA limit 80 µg/L
 123/128 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
67.3 µg/L 112%
of the EPA limit, in the worst sample — 60 µg/L
 123/128 SYR4 2012–2019
Trichloroacetic Acid
13.7 µg/L
No EPA limit set
 119/128 SYR4 2012–2019
Dibromochloromethane
8.6 µg/L
No EPA limit set
 106/138 SYR4 2012–2019
Copper
331 µg/L 25%
of the EPA limit 1300 µg/L
 74/93 SYR4 2013–2017
Dibromoacetic Acid
3 µg/L
No EPA limit set
 63/128 SYR4 2012–2019
Nitrate
600 µg/L 6%
of the EPA limit 10000 µg/L
 32/32 SYR4 2012–2019
Lead
9.4 µg/L 63%
of the EPA limit 15 µg/L
 31/93 SYR4 2013–2017
Atrazine
0.8300 µg/L 28%
of the EPA limit 3 µg/L
 27/35 SYR4 2012–2019
Monochloroacetic Acid
9.1 µg/L
No EPA limit set
 22/128 SYR4 2012–2019
Simazine
0.1900 µg/L 4.8%
of the EPA limit 4 µg/L
 20/35 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2023
Nitrate-Nitrite
430 µg/L 4.3%
of the EPA limit 10000 µg/L
 6/6 SYR4 2012–2015
Bromoform
1.4 µg/L
No EPA limit set
 5/138 SYR4 2012–2019
Barium
138 µg/L 6.9%
of the EPA limit 2000 µg/L
 4/4 SYR4 2014–2017
Fluoride
780 µg/L 20%
of the EPA limit 4000 µg/L
 4/4 SYR4 2014–2017
Arsenic
10 µg/L 100%
of the EPA limit 10 µg/L
 2/12 SYR4 2014–2017
Cyanide
150 µg/L 75%
of the EPA limit 200 µg/L
 2/4 SYR4 2014–2017
Gross Beta Particle Activity
5.5 pCi/L
No EPA limit set
 2/2 SYR4 2017
Hexachlorocyclopentadiene
0.1200 µg/L 0.2%
of the EPA limit 50 µg/L
 2/35 SYR4 2012–2019
Nitrite
20 µg/L 2%
of the EPA limit 1000 µg/L
 2/6 SYR4 2012–2015
Benzo(A)Pyrene
0.4000 µg/L 200%
of the EPA limit, in the worst sample — 0.2000 µg/L
 1/35 SYR4 2012–2019
Di(2-ethylhexyl) Phthalate
0.7400 µg/L 12%
of the EPA limit 6 µg/L
 1/35 SYR4 2012–2019
77 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, TotalAsbestosBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GRANT, JUDY
Phone
713-850-9000

Frequently asked questions about Harris County Mud 53

Is Harris County Mud 53 tap water safe to drink?

EPA monitoring detected 31 contaminants in Harris County Mud 53'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 Harris County Mud 53's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dichloroacetic Acid, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Harris County Mud 53 serve?

Harris County Mud 53 reports serving 17,856 people in Texas, per its EPA record.

Has Harris County Mud 53 had any water quality violations?

The EPA has 9 violations on file for Harris County Mud 53, 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.