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Tap water quality report

Harris County Mud 264

EPA monitoring tested this supplier for 109 contaminants and detected 29. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
29
detected
3,573
people served
4
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.

4
health-based violations
11
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2004-09-01 → 2004-09-30
MCL Health-based Resolved 2004-09-01 → 2004-09-30
MCL Health-based Resolved 2004-09-01 → 2004-09-30
MCL Health-based Archived 1987-07-14 → 1988-07-13
Other Monitoring Resolved 2023-11-05
Other Monitoring Resolved 2023-11-05
MR Monitoring Resolved 2022-08-13
MR Monitoring Resolved 2022-08-13
MR Monitoring Resolved 2022-08-13
MR Monitoring Resolved 2022-08-13

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0050 µg/L 1/3 2025
Pfhxa 0.0031 µg/L 1/3 2025
Pfpea 0.0031 µg/L 1/3 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 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
10.5 µg/L
No EPA limit set
 67/67 SYR4 2012–2019
Chloroform
44 µg/L
No EPA limit set
 67/67 SYR4 2012–2019
Dibromochloromethane
4.5 µg/L
No EPA limit set
 66/67 SYR4 2012–2019
Dichloroacetic Acid
40.5 µg/L
No EPA limit set
 62/62 SYR4 2012–2019
TTHM
55.1 µg/L 69%
of the EPA limit 80 µg/L
 62/62 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
60.7 µg/L 101%
of the EPA limit, in the worst sample — 60 µg/L
 62/62 SYR4 2012–2019
Trichloroacetic Acid
11.1 µg/L
No EPA limit set
 60/62 SYR4 2012–2019
Dibromoacetic Acid
2.5 µg/L
No EPA limit set
 55/62 SYR4 2012–2019
Copper
174 µg/L 13%
of the EPA limit 1300 µg/L
 23/42 SYR4 2014–2017
Nitrate
780 µg/L 7.8%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.00095 mg/L 6.3%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2023
Monochloroacetic Acid
8.5 µg/L
No EPA limit set
 10/62 SYR4 2012–2019
Atrazine
0.4400 µg/L 15%
of the EPA limit 3 µg/L
 8/11 SYR4 2012–2019
Simazine
0.1700 µg/L 4.3%
of the EPA limit 4 µg/L
 8/11 SYR4 2012–2019
Bromoform
1.3 µg/L
No EPA limit set
 6/67 SYR4 2012–2019
Lead
7.1 µg/L 47%
of the EPA limit 15 µg/L
 4/42 SYR4 2014–2017
Nitrate-Nitrite
530 µg/L 5.3%
of the EPA limit 10000 µg/L
 3/3 SYR4 2012–2015
Barium
99 µg/L 5%
of the EPA limit 2000 µg/L
 2/2 SYR4 2014–2017
Fluoride
510 µg/L 13%
of the EPA limit 4000 µg/L
 2/2 SYR4 2014–2017
Arsenic
2.3 µg/L 23%
of the EPA limit 10 µg/L
 1/2 SYR4 2014–2017
Combined Radium (-226 And -228)
3.1 pCi/L 62%
of the EPA limit 5 pCi/L
 1/1 SYR4 2015
Combined Uranium
1.1 µg/L 3.7%
of the EPA limit 30 µg/L
 1/1 SYR4 2015
Gross Alpha, Excl. Radon And U
2 pCi/L 13%
of the EPA limit 15 pCi/L
 1/1 SYR4 2015
Gross Beta Particle Activity
4.4 pCi/L
No EPA limit set
 1/1 SYR4 2015
Hexachlorocyclopentadiene
0.1300 µg/L 0.3%
of the EPA limit 50 µg/L
 1/11 SYR4 2012–2019
Lithium
15 µg/L
No EPA limit set
 1/3 UCMR-5 2025
80 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-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
APPELGET, RUSSELL
Phone
713-860-6400

Frequently asked questions about Harris County Mud 264

Is Harris County Mud 264 tap water safe to drink?

EPA monitoring detected 29 contaminants in Harris County Mud 264'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 264's water?

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

How many people does Harris County Mud 264 serve?

Harris County Mud 264 reports serving 3,573 people in Texas, per its EPA record.

Has Harris County Mud 264 had any water quality violations?

The EPA has 11 violations on file for Harris County Mud 264, of which 4 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.