Tap WaterIndex

← Texas

Tap water quality report

Harris County Mud 285

EPA monitoring tested this supplier for 108 contaminants and detected 28. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

108
contaminants tested
28
detected
14,268
people served
0
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
SWP
Ownership
Local government
Counties served
Harris

Compliance record

No violations on file. The EPA has no formal drinking-water violations recorded for this supplier.

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0078 µg/L 8/8 2025
Pfhxa 0.0072 µg/L 7/8 2025
Pfpea 0.0082 µg/L 7/8 2025
PFBS 0.0043 µg/L 5/8 2025
PFHXS 0.0040 µg/L 4/8 2025

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
Bromodichloromethane
13.56 µg/L
No EPA limit set
worst single sample: 19.2 µg/L
69/69 SYR4 2012–2019
Chloroform
36.04 µg/L
No EPA limit set
worst single sample: 48 µg/L
69/69 SYR4 2012–2019
Dichloroacetic Acid
33.44 µg/L
No EPA limit set
worst single sample: 46 µg/L
62/62 SYR4 2012–2019
TTHM
47.675 µg/L 60%
of the EPA limit 80 µg/L
worst single sample: 77 µg/L
62/62 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
47.46 µg/L 79%
of the EPA limit 60 µg/L
worst single sample: 65.4 µg/L
62/62 SYR4 2012–2019
Trichloroacetic Acid
10.1 µg/L
No EPA limit set
worst single sample: 16.5 µg/L
61/62 SYR4 2012–2019
Dibromochloromethane
5.275 µg/L
No EPA limit set
worst single sample: 7.9 µg/L
56/69 SYR4 2012–2019
Copper
311.3 µg/L 24%
of the EPA limit 1300 µg/L
worst single sample: 326 µg/L
48/62 SYR4 2012–2018
Dibromoacetic Acid
1.9 µg/L
No EPA limit set
worst single sample: 2 µg/L
31/62 SYR4 2012–2019
Nitrate
538.5 µg/L 5.4%
of the EPA limit 10000 µg/L
worst single sample: 570 µg/L
30/30 SYR4 2012–2019
Lead
1.5425 µg/L 10%
of the EPA limit 15 µg/L
worst single sample: 1.59 µg/L
20/62 SYR4 2012–2018
Monochloroacetic Acid
10.07 µg/L
No EPA limit set
worst single sample: 13.3 µg/L
20/62 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2024
Nitrate-Nitrite
549 µg/L 5.5%
of the EPA limit 10000 µg/L
worst single sample: 570 µg/L
7/7 SYR4 2012–2015
Bromoform
2.17 µg/L
No EPA limit set
worst single sample: 2.2 µg/L
4/69 SYR4 2012–2019
Atrazine
0.1190 µg/L 4%
of the EPA limit 3 µg/L
worst single sample: 0.1200 µg/L
2/2 SYR4 2014–2017
Barium
74.55 µg/L 3.7%
of the EPA limit 2000 µg/L
worst single sample: 76.3 µg/L
2/2 SYR4 2014–2017
Fluoride
558.5 µg/L 14%
of the EPA limit 4000 µg/L
worst single sample: 570 µg/L
2/2 SYR4 2014–2017
Arsenic
2.7 µg/L 27%
of the EPA limit 10 µg/L
 1/2 SYR4 2014–2017
Cyanide
20 µg/L 10%
of the EPA limit 200 µg/L
 1/2 SYR4 2014–2017
Gross Beta Particle Activity
4.3 pCi/L
No EPA limit set
 1/1 SYR4 2017
Monobromoacetic Acid
1.2 µg/L
No EPA limit set
 1/62 SYR4 2012–2019
Nitrite
10 µg/L 1%
of the EPA limit 1000 µg/L
 1/7 SYR4 2012–2015
80 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-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
KNOWLES, WALTER, A
Phone
713-860-6400

Frequently asked questions about Harris County Mud 285

Is Harris County Mud 285 tap water safe to drink?

EPA monitoring detected 28 contaminants in Harris County Mud 285'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 285's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dichloroacetic Acid, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Harris County Mud 285 serve?

Harris County Mud 285 reports serving 14,268 people in Texas, per its EPA record.

Has Harris County Mud 285 had any water quality violations?

The EPA has no formal drinking-water violations on file for Harris County Mud 285.

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.