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Tap water quality report

Harris County Mud 276

EPA monitoring tested this supplier for 109 contaminants and detected 28. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
28
detected
5,094
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 0.0070 µg/L 5/8 2024
Pfhxa 0.0049 µg/L 4/8 2024
Pfpea 0.0052 µg/L 4/8 2024

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
11.62 µg/L
No EPA limit set
worst single sample: 14.4 µg/L
69/69 SYR4 2012–2019
Chloroform
27.2 µg/L
No EPA limit set
worst single sample: 39 µg/L
69/69 SYR4 2012–2019
Dibromochloromethane
4.86 µg/L
No EPA limit set
worst single sample: 6.2 µg/L
65/69 SYR4 2012–2019
TTHM
40.05 µg/L 50%
of the EPA limit 80 µg/L
worst single sample: 61.1 µg/L
62/62 SYR4 2012–2019
Dichloroacetic Acid
26 µg/L
No EPA limit set
worst single sample: 39.7 µg/L
61/62 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
37.1 µg/L 62%
of the EPA limit 60 µg/L
worst single sample: 56.5 µg/L
61/62 SYR4 2012–2019
Trichloroacetic Acid
8 µg/L
No EPA limit set
worst single sample: 13.7 µg/L
61/62 SYR4 2012–2019
Dibromoacetic Acid
2.96 µg/L
No EPA limit set
worst single sample: 3.4 µg/L
55/62 SYR4 2012–2019
Nitrate
823 µg/L 8.2%
of the EPA limit 10000 µg/L
worst single sample: 1010 µg/L
38/38 SYR4 2012–2019
Copper
887.5 µg/L 68%
of the EPA limit 1300 µg/L
worst single sample: 1200 µg/L
36/42 SYR4 2012–2017
Lead
4.6 µg/L 31%
of the EPA limit 15 µg/L
worst single sample: 6 µg/L
15/42 SYR4 2012–2017
Monochloroacetic Acid
11.82 µg/L
No EPA limit set
worst single sample: 14.7 µg/L
10/62 SYR4 2012–2019
Bromoform
1.465 µg/L
No EPA limit set
worst single sample: 1.5 µg/L
8/69 SYR4 2012–2019
Atrazine
0.3020 µg/L 10%
of the EPA limit 3 µg/L
worst single sample: 0.3200 µg/L
7/8 SYR4 2012–2019
Lead
0.0042 mg/L 28%
of the EPA limit 0.0150 mg/L
 5/5 LCR 2023
Simazine
0.1620 µg/L 4.1%
of the EPA limit 4 µg/L
worst single sample: 0.1700 µg/L
5/8 SYR4 2012–2019
Nitrate-Nitrite
752.5 µg/L 7.5%
of the EPA limit 10000 µg/L
worst single sample: 790 µg/L
4/4 SYR4 2012–2017
Barium
90.67 µg/L 4.5%
of the EPA limit 2000 µg/L
worst single sample: 92 µg/L
3/3 SYR4 2012–2019
Fluoride
460 µg/L 12%
of the EPA limit 4000 µg/L
worst single sample: 490 µg/L
3/3 SYR4 2013–2019
Cyanide
88.5 µg/L 44%
of the EPA limit 200 µg/L
worst single sample: 90 µg/L
2/2 SYR4 2014–2017
Combined Radium (-226 And -228)
1.5 pCi/L 30%
of the EPA limit 5 pCi/L
 1/1 SYR4 2015
Combined Uranium
1.2 µg/L 4%
of the EPA limit 30 µg/L
 1/1 SYR4 2015
Gross Beta Particle Activity
4.1 pCi/L
No EPA limit set
 1/1 SYR4 2015
Selenium
3.2 µg/L 6.4%
of the EPA limit 50 µg/L
 1/3 SYR4 2012–2019
Toluene
5.8 µg/L 0.6%
of the EPA limit 1000 µg/L
 1/7 SYR4 2012–2019
81 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) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramStyreneTetrachloroethyleneThallium, TotalToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MASTERSON, HARRIS
Phone
713-623-4531

Frequently asked questions about Harris County Mud 276

Is Harris County Mud 276 tap water safe to drink?

EPA monitoring detected 28 contaminants in Harris County Mud 276'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 276's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Harris County Mud 276 serve?

Harris County Mud 276 reports serving 5,094 people in Texas, per its EPA record.

Has Harris County Mud 276 had any water quality violations?

The EPA has no formal drinking-water violations on file for Harris County Mud 276.

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.