Is Harris County Mud 239 Tap Water Safe? Quality Report

Water source: Ground water
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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2004-10-01 → 2004-12-31
MCL	Health-based	Resolved	2004-10-01 → 2004-12-31
RPT	Monitoring	Resolved	2025-07-02
RPT	Monitoring	Resolved	2025-07-02
MR	Monitoring	Resolved	2015-10-01
MR	Monitoring	Resolved	2015-10-01
MR	Monitoring	Resolved	2015-10-01
MR	Monitoring	Resolved	2015-10-01
Other	Monitoring	Resolved	1999-10-19 → 2000-03-01
Other	Monitoring	Resolved	1999-10-19 → 2000-03-01

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Copper	290 µg/L 22% of the EPA limit 1300 µg/L worst single sample: 470 µg/L	81/82	SYR4	2012–2019
Lead	16.415 µg/L 109% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 21 µg/L	30/82	SYR4	2012–2019
Nitrate	810 µg/L 8.1% of the EPA limit 10000 µg/L	12/16	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	11/11	LCR	2025
Chloroform	24.48 µg/L No EPA limit set worst single sample: 27 µg/L	8/19	SYR4	2012–2019
Bromodichloromethane	22.61 µg/L No EPA limit set worst single sample: 29 µg/L	7/19	SYR4	2012–2019
Dibromochloromethane	13.85 µg/L No EPA limit set worst single sample: 16 µg/L	6/19	SYR4	2012–2019
Dichloroacetic Acid	20.775 µg/L No EPA limit set worst single sample: 21.5 µg/L	6/13	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	28.7 µg/L 48% of the EPA limit 60 µg/L worst single sample: 29.4 µg/L	6/13	SYR4	2012–2019
Trichloroacetic Acid	6.675 µg/L No EPA limit set worst single sample: 6.7 µg/L	6/13	SYR4	2012–2019
Dibromoacetic Acid	5.68 µg/L No EPA limit set worst single sample: 6.6 µg/L	5/13	SYR4	2012–2019
TTHM	27.92 µg/L 35% of the EPA limit 80 µg/L worst single sample: 28.1 µg/L	5/13	SYR4	2012–2019
Nitrate-Nitrite	992 µg/L 9.9% of the EPA limit 10000 µg/L worst single sample: 1100 µg/L	3/3	SYR4	2012–2015
Arsenic	5.8 µg/L 58% of the EPA limit 10 µg/L worst single sample: 5.9 µg/L	2/2	SYR4	2014–2017
Barium	130.8 µg/L 6.5% of the EPA limit 2000 µg/L worst single sample: 132 µg/L	2/2	SYR4	2014–2017
Bromoform	5.37 µg/L No EPA limit set worst single sample: 5.4 µg/L	2/19	SYR4	2012–2019
Cyanide	105.5 µg/L 53% of the EPA limit 200 µg/L worst single sample: 110 µg/L	2/2	SYR4	2014–2017
Fluoride	648.5 µg/L 16% of the EPA limit 4000 µg/L worst single sample: 650 µg/L	2/2	SYR4	2014–2017
Lithium	30.3 µg/L No EPA limit set	2/2	UCMR-5	2023
Combined Radium (-226 And -228)	3.1 pCi/L 62% of the EPA limit 5 pCi/L	1/1	SYR4	2014
Combined Uranium	1.3 µg/L 4.3% of the EPA limit 30 µg/L	1/1	SYR4	2014
Gross Alpha, Excl. Radon And U	2 pCi/L 13% of the EPA limit 15 pCi/L	1/1	SYR4	2014
Nitrite	290 µg/L 29% of the EPA limit 1000 µg/L	1/3	SYR4	2012–2015
Xylenes, Total	0.7000 µg/L 0% of the EPA limit 10000 µg/L	1/6	SYR4	2014–2019

85 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 TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: GARCIA, FRED
Phone: 713-623-4531

Frequently asked questions about Harris County Mud 239

Is Harris County Mud 239 tap water safe to drink?

EPA monitoring detected 24 contaminants in Harris County Mud 239'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 239's water?

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

How many people does Harris County Mud 239 serve?

Harris County Mud 239 reports serving 5,583 people in Texas, per its EPA record.

Has Harris County Mud 239 had any water quality violations?

The EPA has 10 violations on file for Harris County Mud 239, of which 2 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.