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Tap water quality report

Harris County Mud 1

EPA monitoring tested this supplier for 109 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
20
detected
12,342
people served
0
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.

0
health-based violations
1
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2011-10-01

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
120 µg/L 9.2%
of the EPA limit 1300 µg/L
 68/74 SYR4 2012–2019
Nitrate
20 µg/L 0.2%
of the EPA limit 10000 µg/L
 26/32 SYR4 2012–2019
Lead
6 µg/L 40%
of the EPA limit 15 µg/L
 25/74 SYR4 2012–2019
Bromoform
4.3 µg/L
No EPA limit set
 17/22 SYR4 2013–2019
Dibromochloromethane
3.5 µg/L
No EPA limit set
 17/22 SYR4 2013–2019
Lead
0.0029 mg/L 19%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2024
TTHM
6.5 µg/L 8.1%
of the EPA limit 80 µg/L
 7/8 SYR4 2013–2019
Lithium
36.5 µg/L
No EPA limit set
 6/6 UCMR-5 2023
Barium
181 µg/L 9%
of the EPA limit 2000 µg/L
 5/5 SYR4 2013–2019
Fluoride
1140 µg/L 28%
of the EPA limit 4000 µg/L
 5/5 SYR4 2013–2019
Arsenic
2.4 µg/L 24%
of the EPA limit 10 µg/L
 4/5 SYR4 2013–2019
Bromodichloromethane
1.2 µg/L
No EPA limit set
 4/22 SYR4 2013–2019
Nitrate-Nitrite
20 µg/L 0.2%
of the EPA limit 10000 µg/L
 3/3 SYR4 2012–2015
Gross Alpha, Excl. Radon And U
3.9 pCi/L 26%
of the EPA limit 15 pCi/L
 2/4 SYR4 2013–2019
Selenium
4 µg/L 8%
of the EPA limit 50 µg/L
 2/5 SYR4 2013–2019
Combined Radium (-226 And -228)
1.5 pCi/L 30%
of the EPA limit 5 pCi/L
 1/1 SYR4 2015
Dibromoacetic Acid
1.4 µg/L
No EPA limit set
 1/8 SYR4 2013–2019
Gross Beta Particle Activity
4.1 pCi/L
No EPA limit set
 1/4 SYR4 2013–2019
Nitrite
10 µg/L 1%
of the EPA limit 1000 µg/L
 1/4 SYR4 2012–2015
Total Haloacetic Acids (HAA5)
1.4 µg/L 2.3%
of the EPA limit 60 µg/L
 1/8 SYR4 2013–2019
89 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CALDWELL, DOUG
Phone
713-652-6500

Frequently asked questions about Harris County Mud 1

Is Harris County Mud 1 tap water safe to drink?

EPA monitoring detected 20 contaminants in Harris County Mud 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 Mud 1's water?

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

How many people does Harris County Mud 1 serve?

Harris County Mud 1 reports serving 12,342 people in Texas, per its EPA record.

Has Harris County Mud 1 had any water quality violations?

The EPA has 1 violation on file for Harris County Mud 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.