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Tap water quality report

Harris County Mud 102

EPA monitoring tested this supplier for 108 contaminants and detected 31. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

108
contaminants tested
31
detected
10,401
people served
4
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
SWP
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
5
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2003-03-01 → 2003-03-31
MCL Health-based Resolved 2003-03-01 → 2003-03-31
MCL Health-based Resolved 2003-03-01 → 2003-03-31
MCL Health-based Resolved 2003-03-01 → 2003-03-31
MR Monitoring Resolved 1992-07-01 → 1993-06-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfpea 0.0085 µg/L 4/8 2023
Pfhxa 0.0092 µg/L 3/8 2023
PFBS 0.0046 µg/L 2/8 2023
PFHXS 0.0036 µg/L 2/8 2023
Pfba 0.0086 µg/L 1/8 2023

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
10.9 µg/L
No EPA limit set
worst single sample: 11.8 µg/L
135/136 SYR4 2012–2019
Chloroform
21.76 µg/L
No EPA limit set
worst single sample: 32 µg/L
135/136 SYR4 2012–2019
Dichloroacetic Acid
23.995 µg/L
No EPA limit set
worst single sample: 38.3 µg/L
128/128 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
34.4 µg/L 57%
of the EPA limit 60 µg/L
worst single sample: 53.7 µg/L
128/128 SYR4 2012–2019
TTHM
35.22 µg/L 44%
of the EPA limit 80 µg/L
worst single sample: 39.9 µg/L
127/128 SYR4 2012–2019
Trichloroacetic Acid
7.405 µg/L
No EPA limit set
worst single sample: 11.3 µg/L
120/128 SYR4 2012–2019
Dibromochloromethane
3.775 µg/L
No EPA limit set
worst single sample: 5.1 µg/L
106/136 SYR4 2012–2019
Dibromoacetic Acid
2.3 µg/L
No EPA limit set
worst single sample: 7 µg/L
83/128 SYR4 2012–2019
Copper
395 µg/L 30%
of the EPA limit 1300 µg/L
worst single sample: 780 µg/L
71/94 SYR4 2013–2019
Nitrate
785 µg/L 7.9%
of the EPA limit 10000 µg/L
worst single sample: 1180 µg/L
68/68 SYR4 2012–2019
Lead
9.2625 µg/L 62%
of the EPA limit 15 µg/L
worst single sample: 10.7 µg/L
24/94 SYR4 2013–2019
Monochloroacetic Acid
6.335 µg/L
No EPA limit set
worst single sample: 6.4 µg/L
14/128 SYR4 2012–2019
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2025
Atrazine
0.3000 µg/L 10%
of the EPA limit 3 µg/L
worst single sample: 0.3500 µg/L
11/14 SYR4 2012–2019
Simazine
0.1300 µg/L 3.3%
of the EPA limit 4 µg/L
 10/14 SYR4 2012–2019
Barium
106.31 µg/L 5.3%
of the EPA limit 2000 µg/L
worst single sample: 111 µg/L
8/8 SYR4 2016–2019
Fluoride
400 µg/L 10%
of the EPA limit 4000 µg/L
 7/7 SYR4 2014–2019
Nitrate-Nitrite
1025 µg/L 10%
of the EPA limit 10000 µg/L
worst single sample: 1190 µg/L
7/7 SYR4 2012–2015
Bromoform
1.17 µg/L
No EPA limit set
worst single sample: 1.2 µg/L
4/136 SYR4 2012–2019
Lithium
26.7 µg/L
No EPA limit set
 4/6 UCMR-5 2023
Cyanide
135 µg/L 68%
of the EPA limit 200 µg/L
worst single sample: 140 µg/L
2/7 SYR4 2014–2019
Di(2-ethylhexyl) Phthalate
0.6970 µg/L 12%
of the EPA limit 6 µg/L
worst single sample: 0.7000 µg/L
2/14 SYR4 2012–2019
Nitrite
10 µg/L 1%
of the EPA limit 1000 µg/L
 2/7 SYR4 2012–2015
Selenium
3.575 µg/L 7.2%
of the EPA limit 50 µg/L
worst single sample: 3.6 µg/L
2/8 SYR4 2016–2019
Combined Uranium
1.7 µg/L 5.7%
of the EPA limit 30 µg/L
 1/2 SYR4 2017
Gross Beta Particle Activity
4.7 pCi/L
No EPA limit set
 1/2 SYR4 2017
77 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, TotalArsenicAsbestosBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WARD, RANDAL
Phone
713-651-0111

Frequently asked questions about Harris County Mud 102

Is Harris County Mud 102 tap water safe to drink?

EPA monitoring detected 31 contaminants in Harris County Mud 102'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 102's water?

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

How many people does Harris County Mud 102 serve?

Harris County Mud 102 reports serving 10,401 people in Texas, per its EPA record.

Has Harris County Mud 102 had any water quality violations?

The EPA has 5 violations on file for Harris County Mud 102, 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.