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Tap water quality report

Interstate Mud

EPA monitoring tested this supplier for 109 contaminants and detected 25. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
25
detected
6,591
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
2
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Archived 1991-06-01 → 1991-06-30
MR Monitoring Archived 1991-03-01 → 1991-03-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0056 µg/L 1/4 2024
PFBS 0.0033 µg/L 1/4 2024
Pfhxa 0.0056 µg/L 1/4 2024
PFHXS 0.0031 µg/L 1/4 2024
Pfpea 0.0063 µg/L 1/4 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
Copper
431.6 µg/L 33%
of the EPA limit 1300 µg/L
worst single sample: 1500 µg/L
60/64 SYR4 2012–2019
Lead
0.00057 mg/L 3.8%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2025
Lead
3.5625 µg/L 24%
of the EPA limit 15 µg/L
worst single sample: 3.65 µg/L
8/64 SYR4 2012–2019
Bromoform
13 µg/L
No EPA limit set
worst single sample: 16.8 µg/L
6/18 SYR4 2013–2019
Arsenic
9.58 µg/L 96%
of the EPA limit 10 µg/L
worst single sample: 9.9 µg/L
5/5 SYR4 2012–2018
Barium
219.2 µg/L 11%
of the EPA limit 2000 µg/L
worst single sample: 234 µg/L
5/5 SYR4 2012–2018
Dibromochloromethane
12.08 µg/L
No EPA limit set
worst single sample: 14.7 µg/L
5/18 SYR4 2013–2019
Fluoride
646 µg/L 16%
of the EPA limit 4000 µg/L
worst single sample: 650 µg/L
5/5 SYR4 2012–2018
Nitrate
20 µg/L 0.2%
of the EPA limit 10000 µg/L
 4/32 SYR4 2012–2019
Lithium
26.7 µg/L
No EPA limit set
 4/4 UCMR-5 2023
Combined Radium (-226 And -228)
1.5 pCi/L 30%
of the EPA limit 5 pCi/L
 3/3 SYR4 2014–2017
Dibromoacetic Acid
3.89 µg/L
No EPA limit set
worst single sample: 4.2 µg/L
3/7 SYR4 2013–2019
TTHM
34.41 µg/L 43%
of the EPA limit 80 µg/L
worst single sample: 37.9 µg/L
3/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
3.89 µg/L 6.5%
of the EPA limit 60 µg/L
worst single sample: 4.2 µg/L
3/7 SYR4 2013–2019
Xylenes, Total
2.09 µg/L 0%
of the EPA limit 10000 µg/L
worst single sample: 2.1 µg/L
2/11 SYR4 2014–2019
Bromodichloromethane
5.2 µg/L
No EPA limit set
 1/18 SYR4 2013–2019
Chloroform
1.2 µg/L
No EPA limit set
 1/18 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
4.3 pCi/L 29%
of the EPA limit 15 pCi/L
 1/3 SYR4 2014–2017
Nitrate-Nitrite
20 µg/L 0.2%
of the EPA limit 10000 µg/L
 1/6 SYR4 2012–2019
Selenium
4.4 µg/L 8.8%
of the EPA limit 50 µg/L
 1/5 SYR4 2012–2018
84 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 TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
ELLIS, JAMES P
Phone
713-529-4281
Email
[email protected]

Frequently asked questions about Interstate Mud

Is Interstate Mud tap water safe to drink?

EPA monitoring detected 25 contaminants in Interstate Mud'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 Interstate Mud's water?

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

How many people does Interstate Mud serve?

Interstate Mud reports serving 6,591 people in Texas, per its EPA record.

Has Interstate Mud had any water quality violations?

The EPA has 2 violations on file for Interstate Mud, 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.