Tap WaterIndex

← Texas

Tap water quality report

Northwest Harris County Mud 23

EPA monitoring tested this supplier for 109 contaminants and detected 24. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
24
detected
4,470
people served
3
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.

3
health-based violations
17
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2008-09-01 → 2008-09-30
MCL Health-based Resolved 2008-09-01 → 2008-09-30
MCL Health-based Resolved 2008-09-01 → 2008-09-30
MON Monitoring Resolved 2023-01-01 → 2023-01-31
MON Monitoring Resolved 2023-01-01 → 2023-01-31
MON Monitoring Resolved 2023-01-01 → 2023-01-31
MON Monitoring Resolved 2023-01-01 → 2023-01-31
MON Monitoring Resolved 2022-01-01 → 2022-01-31
MON Monitoring Resolved 2022-01-01 → 2022-01-31
MON Monitoring Resolved 2022-01-01 → 2022-01-31

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
518 µg/L 40%
of the EPA limit 1300 µg/L
 53/62 SYR4 2013–2019
Chloroform
28.9 µg/L
No EPA limit set
 29/30 SYR4 2012–2019
Bromodichloromethane
3.9 µg/L
No EPA limit set
 26/30 SYR4 2012–2019
Lead
27 µg/L 180%
of the EPA limit, in the worst sample — 15 µg/L
 20/62 SYR4 2013–2019
Nitrate
1370 µg/L 14%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2025
Benzene
3.1 µg/L 62%
of the EPA limit 5 µg/L
 10/22 SYR4 2012–2019
Xylenes, Total
210 µg/L 2.1%
of the EPA limit 10000 µg/L
 9/22 SYR4 2012–2019
Dichloroacetic Acid
23.9 µg/L
No EPA limit set
 8/8 SYR4 2012–2019
TTHM
31.4 µg/L 39%
of the EPA limit 80 µg/L
 8/8 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
26.9 µg/L 45%
of the EPA limit 60 µg/L
 8/8 SYR4 2012–2019
Trichloroacetic Acid
3.7 µg/L
No EPA limit set
 8/8 SYR4 2012–2019
Monochloroacetic Acid
4.1 µg/L
No EPA limit set
 5/8 SYR4 2012–2019
Ethylbenzene
21 µg/L 3%
of the EPA limit 700 µg/L
 3/22 SYR4 2012–2019
Nitrate-Nitrite
1270 µg/L 13%
of the EPA limit 10000 µg/L
 3/3 SYR4 2012–2015
Nitrite
30 µg/L 3%
of the EPA limit 1000 µg/L
 3/3 SYR4 2012–2015
Barium
122 µg/L 6.1%
of the EPA limit 2000 µg/L
 2/2 SYR4 2014–2017
Fluoride
180 µg/L 4.5%
of the EPA limit 4000 µg/L
 2/2 SYR4 2014–2017
Toluene
1.8 µg/L 0.2%
of the EPA limit 1000 µg/L
 2/22 SYR4 2012–2019
Arsenic
3.2 µg/L 32%
of the EPA limit 10 µg/L
 1/2 SYR4 2014–2017
Atrazine
0.1300 µg/L 4.3%
of the EPA limit 3 µg/L
 1/2 SYR4 2015–2018
Cyanide
140 µg/L 70%
of the EPA limit 200 µg/L
 1/2 SYR4 2014–2017
Combined Radium (-226 And -228)
1.5 pCi/L 30%
of the EPA limit 5 pCi/L
 1/1 SYR4 2015
Dibromochloromethane
0.5000 µg/L
No EPA limit set
 1/30 SYR4 2012–2019
85 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, TotalAsbestosBhc-GammaBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BENSEN, BARBARA
Phone
713-864-5466

Frequently asked questions about Northwest Harris County Mud 23

Is Northwest Harris County Mud 23 tap water safe to drink?

EPA monitoring detected 24 contaminants in Northwest Harris County Mud 23'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 Northwest Harris County Mud 23's water?

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

How many people does Northwest Harris County Mud 23 serve?

Northwest Harris County Mud 23 reports serving 4,470 people in Texas, per its EPA record.

Has Northwest Harris County Mud 23 had any water quality violations?

The EPA has 17 violations on file for Northwest Harris County Mud 23, of which 3 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.