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Tap water quality report

Mcmullen County Tilden

EPA monitoring tested this supplier for 78 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

78
contaminants tested
14
detected
618
people served
4
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
Ground water
Ownership
Local government
Counties served
McMullen

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
167
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
TT Health-based Resolved 2024-10-17
MR Monitoring Resolved 2026-04-01
MR Monitoring Resolved 2026-04-01
Other Monitoring Resolved 2026-01-04
Other Monitoring Resolved 2026-01-04
Other Monitoring Resolved 2025-10-26
Other Monitoring Resolved 2025-10-26

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
224.35 µg/L 17%
of the EPA limit 1300 µg/L
worst single sample: 426 µg/L
28/31 SYR4 2013–2017
Bromoform
22.5765 µg/L
No EPA limit set
worst single sample: 24 µg/L
14/15 SYR4 2012–2019
Dibromochloromethane
9.995 µg/L
No EPA limit set
worst single sample: 11.1 µg/L
14/15 SYR4 2012–2019
Nitrate
90 µg/L 0.9%
of the EPA limit 10000 µg/L
 14/16 SYR4 2012–2019
Lead
9.565 µg/L 64%
of the EPA limit 15 µg/L
worst single sample: 12.7 µg/L
12/31 SYR4 2013–2017
Bromodichloromethane
2.9 µg/L
No EPA limit set
worst single sample: 3.4 µg/L
11/15 SYR4 2012–2019
Lead
0.0144 mg/L 96%
of the EPA limit 0.0150 mg/L
 8/8 LCR 2025
Dibromoacetic Acid
5 µg/L
No EPA limit set
worst single sample: 5.9 µg/L
7/7 SYR4 2013–2019
TTHM
33.51 µg/L 42%
of the EPA limit 80 µg/L
worst single sample: 37.5 µg/L
7/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
5 µg/L 8.3%
of the EPA limit 60 µg/L
worst single sample: 5.9 µg/L
7/7 SYR4 2013–2019
Fluoride
863 µg/L 22%
of the EPA limit 4000 µg/L
worst single sample: 870 µg/L
3/3 SYR4 2012–2018
Nitrate-Nitrite
77 µg/L 0.8%
of the EPA limit 10000 µg/L
worst single sample: 80 µg/L
3/3 SYR4 2013–2019
Barium
30.6 µg/L 1.5%
of the EPA limit 2000 µg/L
worst single sample: 30.7 µg/L
2/2 SYR4 2015–2018
Selenium
3.7 µg/L 7.4%
of the EPA limit 50 µg/L
 1/2 SYR4 2015–2018
64 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
TEAL, JAMES E.
Phone
361-274-3900
Email
[email protected]

Frequently asked questions about Mcmullen County Tilden

Is Mcmullen County Tilden tap water safe to drink?

EPA monitoring detected 14 contaminants in Mcmullen County Tilden'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 Mcmullen County Tilden's water?

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

How many people does Mcmullen County Tilden serve?

Mcmullen County Tilden reports serving 618 people in Texas, per its EPA record.

Has Mcmullen County Tilden had any water quality violations?

The EPA has 167 violations on file for Mcmullen County Tilden, 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.