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Tap water quality report

West Harris County Mud 10

EPA monitoring tested this supplier for 109 contaminants and detected 26. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
26
detected
6,697
people served
4
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.

4
health-based violations
8
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2024-04-01 → 2024-06-30
MCL Health-based Resolved 2024-04-01 → 2024-06-30
MCL Health-based Resolved 2024-04-01 → 2024-06-30
MCL Health-based Resolved 2024-04-01 → 2024-06-30
MR Monitoring Resolved 2013-12-30
MR Monitoring Resolved 2011-10-01
Other Monitoring Resolved 1999-10-19 → 2000-02-29
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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
363.21 µg/L 28%
of the EPA limit 1300 µg/L
worst single sample: 729 µg/L
60/65 SYR4 2013–2017
Dibromochloromethane
17.86 µg/L
No EPA limit set
worst single sample: 36.1 µg/L
43/47 SYR4 2012–2019
Bromodichloromethane
19.245 µg/L
No EPA limit set
worst single sample: 22.9 µg/L
40/47 SYR4 2012–2019
Bromoform
17.03 µg/L
No EPA limit set
worst single sample: 19.8 µg/L
39/47 SYR4 2012–2019
TTHM
74.09 µg/L 93%
of the EPA limit 80 µg/L
worst single sample: 93.2 µg/L
39/40 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
16.64 µg/L 28%
of the EPA limit 60 µg/L
worst single sample: 34.3 µg/L
30/40 SYR4 2012–2019
Chloroform
38.185 µg/L
No EPA limit set
worst single sample: 51.1 µg/L
28/47 SYR4 2012–2019
Nitrate
200 µg/L 2%
of the EPA limit 10000 µg/L
 28/32 SYR4 2012–2019
Dibromoacetic Acid
2.92 µg/L
No EPA limit set
worst single sample: 7.4 µg/L
23/40 SYR4 2012–2019
Dichloroacetic Acid
14.215 µg/L
No EPA limit set
worst single sample: 22.6 µg/L
14/40 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2023
Arsenic
3.84 µg/L 38%
of the EPA limit 10 µg/L
worst single sample: 4.1 µg/L
5/5 SYR4 2014–2019
Barium
375.2 µg/L 19%
of the EPA limit 2000 µg/L
worst single sample: 381 µg/L
5/5 SYR4 2014–2019
Lead
1.738 µg/L 12%
of the EPA limit 15 µg/L
worst single sample: 1.8 µg/L
5/65 SYR4 2013–2017
Nitrate-Nitrite
198 µg/L 2%
of the EPA limit 10000 µg/L
worst single sample: 200 µg/L
5/6 SYR4 2012–2015
Trichloroacetic Acid
4.78 µg/L
No EPA limit set
worst single sample: 5 µg/L
5/40 SYR4 2012–2019
Combined Uranium
8.835 µg/L 29%
of the EPA limit 30 µg/L
worst single sample: 9 µg/L
4/4 SYR4 2013–2019
Fluoride
570.5 µg/L 14%
of the EPA limit 4000 µg/L
worst single sample: 590 µg/L
4/4 SYR4 2014–2017
Gross Alpha, Excl. Radon And U
11.29 pCi/L 75%
of the EPA limit 15 pCi/L
worst single sample: 12.4 pCi/L
4/4 SYR4 2013–2019
Lithium
37.2 µg/L
No EPA limit set
 4/4 UCMR-5 2024
Gross Beta Particle Activity
6.87 pCi/L
No EPA limit set
worst single sample: 7 pCi/L
3/4 SYR4 2013–2019
Selenium
4.29 µg/L 8.6%
of the EPA limit 50 µg/L
worst single sample: 4.3 µg/L
3/5 SYR4 2014–2019
Combined Radium (-226 And -228)
2.19 pCi/L 44%
of the EPA limit 5 pCi/L
worst single sample: 2.2 pCi/L
2/4 SYR4 2013–2019
Monochloroacetic Acid
4.62 µg/L
No EPA limit set
worst single sample: 4.7 µg/L
2/40 SYR4 2012–2019
2,4-D
0.3000 µg/L 0.4%
of the EPA limit 70 µg/L
 1/9 SYR4 2014–2019
Di(2-ethylhexyl) Phthalate
0.7300 µg/L 12%
of the EPA limit 6 µg/L
 1/12 SYR4 2012–2019
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-TP4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WARD, SCOTT
Phone
713-522-1111

Frequently asked questions about West Harris County Mud 10

Is West Harris County Mud 10 tap water safe to drink?

EPA monitoring detected 26 contaminants in West Harris County Mud 10'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 10's water?

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

How many people does West Harris County Mud 10 serve?

West Harris County Mud 10 reports serving 6,697 people in Texas, per its EPA record.

Has West Harris County Mud 10 had any water quality violations?

The EPA has 8 violations on file for West Harris County Mud 10, of which 4 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.