Is Harris County Mud 5 Tap Water Safe? Quality Report

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
RPT	Monitoring	Unaddressed	2025-07-02
Other	Monitoring	Unaddressed	2019-04-06
Other	Monitoring	Unaddressed	2019-04-06
MR	Monitoring	Resolved	2017-01-01 → 2017-12-31
MR	Monitoring	Resolved	2017-01-01 → 2017-12-31
MR	Monitoring	Resolved	2017-01-01 → 2017-12-31
MR	Monitoring	Resolved	2015-01-01 → 2017-12-31
MR	Monitoring	Resolved	2015-01-01 → 2017-12-31
MR	Monitoring	Resolved	2015-01-01 → 2017-12-31
MR	Monitoring	Resolved	1992-07-01 → 1993-06-30

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	44.78 µg/L 3.4% of the EPA limit 1300 µg/L worst single sample: 412.8 µg/L	60/61	SYR4	2013–2019
Bromoform	6.465 µg/L No EPA limit set worst single sample: 8.6 µg/L	30/67	SYR4	2012–2019
Dibromochloromethane	9.1 µg/L No EPA limit set worst single sample: 12.7 µg/L	29/67	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	22.26 µg/L 37% of the EPA limit 60 µg/L worst single sample: 23.8 µg/L	29/62	SYR4	2012–2019
TTHM	31.885 µg/L 40% of the EPA limit 80 µg/L worst single sample: 33.9 µg/L	28/62	SYR4	2012–2019
Dibromoacetic Acid	3.2 µg/L No EPA limit set worst single sample: 3.7 µg/L	26/62	SYR4	2012–2019
Bromodichloromethane	7.38 µg/L No EPA limit set worst single sample: 9 µg/L	19/67	SYR4	2012–2019
Lead	4.695 µg/L 31% of the EPA limit 15 µg/L worst single sample: 7.5 µg/L	18/61	SYR4	2013–2019
Lead	0.00096 mg/L 6.4% of the EPA limit 0.0150 mg/L	15/15	LCR	2025
Nitrate	40 µg/L 0.4% of the EPA limit 10000 µg/L	12/14	SYR4	2012–2019
Dichloroacetic Acid	16.9 µg/L No EPA limit set worst single sample: 17.7 µg/L	11/62	SYR4	2012–2019
Chloroform	14.7 µg/L No EPA limit set worst single sample: 15 µg/L	7/67	SYR4	2012–2019
Trichloroacetic Acid	6.8 µg/L No EPA limit set worst single sample: 7.9 µg/L	6/62	SYR4	2012–2019
Lithium	21.7 µg/L No EPA limit set	4/4	UCMR-5	2023
Nitrate-Nitrite	29 µg/L 0.3% of the EPA limit 10000 µg/L worst single sample: 30 µg/L	3/3	SYR4	2012–2015
Arsenic	5.155 µg/L 52% of the EPA limit 10 µg/L worst single sample: 5.3 µg/L	2/2	SYR4	2016–2019
Barium	232.685 µg/L 12% of the EPA limit 2000 µg/L worst single sample: 240 µg/L	2/2	SYR4	2016–2019
Cyanide	90 µg/L 45% of the EPA limit 200 µg/L	1/2	SYR4	2014–2017
Fluoride	280 µg/L 7% of the EPA limit 4000 µg/L	1/1	SYR4	2014
Monochloroacetic Acid	2.6 µg/L No EPA limit set	1/62	SYR4	2012–2019
Nitrite	10 µg/L 1% of the EPA limit 1000 µg/L	1/3	SYR4	2012–2015
Selenium	3.2 µg/L 6.4% of the EPA limit 50 µg/L	1/2	SYR4	2016–2019

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 TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: YOUNG, FELICIA
Phone: 713-942-9922

Frequently asked questions about Harris County Mud 5

Is Harris County Mud 5 tap water safe to drink?

EPA monitoring detected 22 contaminants in Harris County Mud 5'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 5's water?

EPA monitoring detected Copper, Bromoform, Dibromochloromethane, Total Haloacetic Acids (HAA5), TTHM, and others. The full list with the level and data source for each is above.

How many people does Harris County Mud 5 serve?

Harris County Mud 5 reports serving 5,487 people in Texas, per its EPA record.

Has Harris County Mud 5 had any water quality violations?

The EPA has 10 violations on file for Harris County Mud 5, of which 0 are health-based (a contaminant limit or required treatment was breached) and 3 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.