Is Harris County Wcid 133 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
RPT	Monitoring	Resolved	2025-07-02
RPT	Monitoring	Resolved	2025-07-02
MR	Monitoring	Archived	1992-07-01 → 1993-04-14
MR	Monitoring	Archived	1992-07-01 → 1993-04-14

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	50.415 µg/L 3.9% of the EPA limit 1300 µg/L worst single sample: 299 µg/L	60/62	SYR4	2013–2019
Lead	16.88 µg/L 113% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 24.9 µg/L	35/62	SYR4	2013–2019
Nitrate	204.5 µg/L 2% of the EPA limit 10000 µg/L worst single sample: 210 µg/L	32/32	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	15/15	LCR	2025
Nitrate-Nitrite	207.5 µg/L 2.1% of the EPA limit 10000 µg/L worst single sample: 210 µg/L	6/6	SYR4	2012–2015
Barium	311.55 µg/L 16% of the EPA limit 2000 µg/L worst single sample: 312 µg/L	4/4	SYR4	2016–2019
Combined Radium (-226 And -228)	2.035 pCi/L 41% of the EPA limit 5 pCi/L worst single sample: 2.2 pCi/L	4/5	SYR4	2013–2019
Combined Uranium	13.45 µg/L 45% of the EPA limit 30 µg/L worst single sample: 13.6 µg/L	4/4	SYR4	2013–2019
Dibromochloromethane	1.47 µg/L No EPA limit set worst single sample: 1.5 µg/L	4/17	SYR4	2013–2019
Fluoride	177 µg/L 4.4% of the EPA limit 4000 µg/L worst single sample: 180 µg/L	4/4	SYR4	2014–2017
Gross Alpha, Excl. Radon And U	6.53 pCi/L 44% of the EPA limit 15 pCi/L worst single sample: 6.8 pCi/L	4/4	SYR4	2013–2019
Gross Beta Particle Activity	6.48 pCi/L No EPA limit set worst single sample: 6.6 pCi/L	4/5	SYR4	2013–2019
Selenium	5.88 µg/L 12% of the EPA limit 50 µg/L worst single sample: 6 µg/L	4/4	SYR4	2016–2019
TTHM	2.71 µg/L 3.4% of the EPA limit 80 µg/L worst single sample: 2.8 µg/L	4/8	SYR4	2013–2019
Lithium	14 µg/L No EPA limit set	4/4	UCMR-5	2023
Arsenic	2.395 µg/L 24% of the EPA limit 10 µg/L worst single sample: 2.4 µg/L	2/4	SYR4	2016–2019
Bromodichloromethane	1.285 µg/L No EPA limit set worst single sample: 1.3 µg/L	2/17	SYR4	2013–2019
Ethylbenzene	0.6900 µg/L 0.1% of the EPA limit 700 µg/L worst single sample: 0.7000 µg/L	2/9	SYR4	2015–2018
Xylenes, Total	7.275 µg/L 0.1% of the EPA limit 10000 µg/L worst single sample: 7.6 µg/L	2/9	SYR4	2015–2018

90 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, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebEthylene DibromideEndrinHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: MONTALBANO, SAM, A
Phone: 713-864-5466

Frequently asked questions about Harris County Wcid 133

Is Harris County Wcid 133 tap water safe to drink?

EPA monitoring detected 19 contaminants in Harris County Wcid 133'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 Wcid 133's water?

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

How many people does Harris County Wcid 133 serve?

Harris County Wcid 133 reports serving 5,082 people in Texas, per its EPA record.

Has Harris County Wcid 133 had any water quality violations?

The EPA has 4 violations on file for Harris County Wcid 133, 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.