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Tap water quality report

West Harris County Mud 7

EPA monitoring tested this supplier for 109 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
13
detected
5,289
people served
1
health-based violations
Texas rankingsLead in TexasPFAS in Texas
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.

1
health-based violations
3
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1985-11-07 → 1986-11-06
Other Monitoring Resolved 2025-07-01
Other Monitoring Resolved 2025-07-01

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 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
Copper
625 µg/L 48%
of the EPA limit 1300 µg/L
 118/121 SYR4 2013–2018
Lead
4.37 µg/L 29%
of the EPA limit 15 µg/L
 53/121 SYR4 2013–2018
Nitrate
150 µg/L 1.5%
of the EPA limit 10000 µg/L
 20/20 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2024
Fluoride
190 µg/L 4.8%
of the EPA limit 4000 µg/L
 4/4 SYR4 2012–2018
Nitrate-Nitrite
150 µg/L 1.5%
of the EPA limit 10000 µg/L
 4/4 SYR4 2013–2019
Barium
188 µg/L 9.4%
of the EPA limit 2000 µg/L
 2/2 SYR4 2015–2018
Combined Uranium
3.6 µg/L 12%
of the EPA limit 30 µg/L
 2/2 SYR4 2015–2018
Gross Alpha, Excl. Radon And U
5 pCi/L 33%
of the EPA limit 15 pCi/L
 2/2 SYR4 2015–2018
Selenium
6.1 µg/L 12%
of the EPA limit 50 µg/L
 2/2 SYR4 2015–2018
Lithium
11.7 µg/L
No EPA limit set
 2/2 UCMR-5 2025
Arsenic
2.3 µg/L 23%
of the EPA limit 10 µg/L
 1/2 SYR4 2015–2018
Combined Radium (-226 And -228)
0.5200 pCi/L 10%
of the EPA limit 5 pCi/L
 1/2 SYR4 2015–2018
96 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, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WELDON, BILL
Phone
713-652-6500

Frequently asked questions about West Harris County Mud 7

Is West Harris County Mud 7 tap water safe to drink?

EPA monitoring detected 13 contaminants in West Harris County Mud 7'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 West Harris County Mud 7's water?

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

How many people does West Harris County Mud 7 serve?

West Harris County Mud 7 reports serving 5,289 people in Texas, per its EPA record.

Has West Harris County Mud 7 had any water quality violations?

The EPA has 3 violations on file for West Harris County Mud 7, of which 1 is 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.