Is Harris County Wcid 1 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
MR	Monitoring	Resolved	2021-01-01
MR	Monitoring	Resolved	2021-01-01
MR	Monitoring	Resolved	2021-01-01
MR	Monitoring	Resolved	2021-01-01
MR	Monitoring	Resolved	2020-01-01 → 2020-06-30
MR	Monitoring	Resolved	2020-01-01 → 2020-06-30
MR	Monitoring	Resolved	2020-01-01 → 2020-06-30
MR	Monitoring	Resolved	2020-01-01 → 2020-06-30
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).

Contaminant	Max	Detection rate	Period
Pfba	0.0074 µg/L	3/8	2024
Pfhxa	0.0086 µg/L	3/8	2024
Pfpea	0.0095 µg/L	2/8	2024
PFBS	0.0043 µg/L	1/8	2024
PFHXS	0.0043 µg/L	1/8	2024
PFOS	0.0055 µg/L	1/8	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 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	670 µg/L 52% of the EPA limit 1300 µg/L worst single sample: 800 µg/L	93/103	SYR4	2013–2019
Bromodichloromethane	16.08 µg/L No EPA limit set worst single sample: 18.3 µg/L	65/65	SYR4	2012–2019
Dibromochloromethane	7.72 µg/L No EPA limit set worst single sample: 17 µg/L	65/65	SYR4	2012–2019
Chloroform	32.06 µg/L No EPA limit set worst single sample: 39.2 µg/L	63/65	SYR4	2012–2019
TTHM	50.905 µg/L 64% of the EPA limit 80 µg/L worst single sample: 58 µg/L	60/60	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	45.09 µg/L 75% of the EPA limit 60 µg/L worst single sample: 68.2 µg/L	60/60	SYR4	2012–2019
Dichloroacetic Acid	31.73 µg/L No EPA limit set worst single sample: 42.5 µg/L	59/60	SYR4	2012–2019
Trichloroacetic Acid	12.3 µg/L No EPA limit set worst single sample: 15 µg/L	56/60	SYR4	2012–2019
Dibromoacetic Acid	5.465 µg/L No EPA limit set worst single sample: 10.7 µg/L	50/60	SYR4	2012–2019
Lead	11.38 µg/L 76% of the EPA limit 15 µg/L worst single sample: 24.2 µg/L	36/103	SYR4	2013–2019
Bromoform	7.46 µg/L No EPA limit set worst single sample: 8.9 µg/L	27/65	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	18/18	LCR	2024
Nitrate	840 µg/L 8.4% of the EPA limit 10000 µg/L	16/32	SYR4	2012–2019
Monochloroacetic Acid	9.025 µg/L No EPA limit set worst single sample: 9.9 µg/L	6/60	SYR4	2012–2019
Nitrate-Nitrite	787.5 µg/L 7.9% of the EPA limit 10000 µg/L worst single sample: 840 µg/L	4/7	SYR4	2012–2015
Lithium	11.2 µg/L No EPA limit set	3/8	UCMR-5	2024
Barium	47.14 µg/L 2.4% of the EPA limit 2000 µg/L worst single sample: 47.4 µg/L	2/2	SYR4	2016–2019
Fluoride	748.5 µg/L 19% of the EPA limit 4000 µg/L worst single sample: 750 µg/L	2/2	SYR4	2014–2017
Combined Radium (-226 And -228)	1.5 pCi/L 30% of the EPA limit 5 pCi/L	1/1	SYR4	2016
Nitrite	50 µg/L 5% of the EPA limit 1000 µg/L	1/7	SYR4	2012–2015

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, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: MULLINS, LEON, R
Phone: 281-426-6148

Frequently asked questions about Harris County Wcid 1

Is Harris County Wcid 1 tap water safe to drink?

EPA monitoring detected 26 contaminants in Harris County Wcid 1'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 1's water?

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

How many people does Harris County Wcid 1 serve?

Harris County Wcid 1 reports serving 8,559 people in Texas, per its EPA record.

Has Harris County Wcid 1 had any water quality violations?

The EPA has 9 violations on file for Harris County Wcid 1, 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.