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Harris County Mud 189

EPA monitoring tested this supplier for 109 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
17
detected
6,906
people served
20
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.

20
health-based violations
69
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2014-04-01 → 2014-06-30
MCL Health-based Resolved 2014-04-01 → 2014-06-30
MCL Health-based Resolved 2014-04-01 → 2014-06-30
MCL Health-based Resolved 2014-04-01 → 2014-06-30
MCL Health-based Resolved 2008-04-01 → 2008-06-30
MCL Health-based Resolved 2008-04-01 → 2008-06-30
MCL Health-based Resolved 2008-01-01 → 2008-03-31
MCL Health-based Resolved 2008-01-01 → 2008-03-31
MCL Health-based Resolved 2008-01-01 → 2008-03-31
MCL Health-based Resolved 2008-01-01 → 2008-03-31

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
363 µg/L 28%
of the EPA limit 1300 µg/L
 59/61 SYR4 2014–2019
Lead
8.26 µg/L 55%
of the EPA limit 15 µg/L
 21/61 SYR4 2014–2019
Lead
0.0024 mg/L 16%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2026
Nitrate
50 µg/L 0.5%
of the EPA limit 10000 µg/L
 16/32 SYR4 2012–2019
Combined Radium (-226 And -228)
5 pCi/L 100%
of the EPA limit 5 pCi/L
 14/14 SYR4 2013–2018
Gross Alpha, Excl. Radon And U
22.5 pCi/L 150%
of the EPA limit, in the worst sample — 15 pCi/L
 14/14 SYR4 2013–2018
Gross Beta Particle Activity
12.1 pCi/L
No EPA limit set
 11/14 SYR4 2013–2018
Arsenic
6.6 µg/L 66%
of the EPA limit 10 µg/L
 4/4 SYR4 2014–2017
Barium
349 µg/L 17%
of the EPA limit 2000 µg/L
 4/4 SYR4 2014–2017
Dibromochloromethane
1.5 µg/L
No EPA limit set
 4/24 SYR4 2012–2019
Fluoride
260 µg/L 6.5%
of the EPA limit 4000 µg/L
 4/4 SYR4 2014–2017
Nitrate-Nitrite
50 µg/L 0.5%
of the EPA limit 10000 µg/L
 3/6 SYR4 2012–2015
Bromodichloromethane
1.2 µg/L
No EPA limit set
 2/24 SYR4 2012–2019
Chloroform
0.5000 µg/L
No EPA limit set
 2/24 SYR4 2012–2019
Combined Uranium
2.3 µg/L 7.7%
of the EPA limit 30 µg/L
 2/14 SYR4 2013–2018
Selenium
4.6 µg/L 9.2%
of the EPA limit 50 µg/L
 2/4 SYR4 2014–2017
Lithium
14.7 µg/L
No EPA limit set
 2/2 UCMR-5 2025
92 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 TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CONE, DERWOOD
Phone
713-651-5151

Frequently asked questions about Harris County Mud 189

Is Harris County Mud 189 tap water safe to drink?

EPA monitoring detected 17 contaminants in Harris County Mud 189'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 189's water?

EPA monitoring detected Copper, Lead, Lead, Nitrate, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.

How many people does Harris County Mud 189 serve?

Harris County Mud 189 reports serving 6,906 people in Texas, per its EPA record.

Has Harris County Mud 189 had any water quality violations?

The EPA has 69 violations on file for Harris County Mud 189, of which 20 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.