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Tap water quality report

City of Donna

EPA monitoring tested this supplier for 108 contaminants and detected 29. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

108
contaminants tested
29
detected
18,720
people served
10
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
Surface water
Ownership
Local government
Counties served
Hidalgo

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.

10
health-based violations
26
violations on file
1
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2014-10-01 → 2014-10-31
TT Health-based Resolved 2014-10-01 → 2014-10-31
TT Health-based Resolved 2014-10-01 → 2014-10-31
TT Health-based Resolved 2014-10-01 → 2014-10-31
TT Health-based Resolved 2012-07-01 → 2012-07-31
TT Health-based Resolved 2012-03-01 → 2012-03-31
TT Health-based Archived 1993-10-01 → 1993-10-31
TT Health-based Archived 1993-07-01 → 1993-07-31
MCL Health-based Archived 1991-06-01 → 1991-06-30
MCL Health-based Archived 1991-06-01 → 1991-06-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0138 µg/L 4/4 2024
Pfhxa 0.0045 µg/L 2/4 2024
PFOS 0.0074 µg/L 2/4 2024
Pfpea 0.0045 µg/L 2/4 2024
PFBS 0.0036 µg/L 1/4 2024
PFHXS 0.0045 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
Chlorite
732.2 µg/L 73%
of the EPA limit 1000 µg/L
worst single sample: 1114 µg/L
187/219 SYR4 2013–2019
Bromodichloromethane
12.55 µg/L
No EPA limit set
worst single sample: 16.3 µg/L
115/115 SYR4 2012–2019
Dibromochloromethane
21.04 µg/L
No EPA limit set
worst single sample: 27.4 µg/L
115/115 SYR4 2012–2019
Chloroform
6.5 µg/L
No EPA limit set
worst single sample: 7.7 µg/L
113/115 SYR4 2012–2019
Bromoform
23.68 µg/L
No EPA limit set
worst single sample: 33.6 µg/L
112/115 SYR4 2012–2019
TTHM
63.63 µg/L 80%
of the EPA limit 80 µg/L
worst single sample: 83.2 µg/L
107/107 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
31.58 µg/L 53%
of the EPA limit 60 µg/L
worst single sample: 55.3 µg/L
107/107 SYR4 2012–2019
Dibromoacetic Acid
16.98 µg/L
No EPA limit set
worst single sample: 33.8 µg/L
103/107 SYR4 2012–2019
Dichloroacetic Acid
11.99 µg/L
No EPA limit set
worst single sample: 20.6 µg/L
103/107 SYR4 2012–2019
Copper
894.8 µg/L 69%
of the EPA limit 1300 µg/L
worst single sample: 3980 µg/L
93/95 SYR4 2012–2017
Trichloroacetic Acid
3.4 µg/L
No EPA limit set
worst single sample: 7.4 µg/L
81/107 SYR4 2012–2019
Lead
25.07 µg/L 167%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 35.9 µg/L
32/95 SYR4 2012–2017
Monobromoacetic Acid
3.275 µg/L
No EPA limit set
worst single sample: 11.5 µg/L
26/107 SYR4 2012–2019
Nitrate
880 µg/L 8.8%
of the EPA limit 10000 µg/L
 20/20 SYR4 2012–2019
Lead
0.0016 mg/L 10%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2023
Monochloroacetic Acid
10.22 µg/L
No EPA limit set
worst single sample: 11.3 µg/L
9/107 SYR4 2012–2019
Fluoride
514.5 µg/L 13%
of the EPA limit 4000 µg/L
worst single sample: 560 µg/L
8/8 SYR4 2012–2019
Barium
144.8 µg/L 7.2%
of the EPA limit 2000 µg/L
worst single sample: 152 µg/L
7/7 SYR4 2013–2019
Selenium
4.02 µg/L 8%
of the EPA limit 50 µg/L
worst single sample: 4.1 µg/L
5/7 SYR4 2013–2019
Lithium
45.6 µg/L
No EPA limit set
 4/4 UCMR-5 2024
Cyanide
67 µg/L 34%
of the EPA limit 200 µg/L
worst single sample: 70 µg/L
2/6 SYR4 2014–2019
Atrazine
0.2400 µg/L 8%
of the EPA limit 3 µg/L
 1/8 SYR4 2012–2019
Gross Beta Particle Activity
5.5 pCi/L
No EPA limit set
 1/1 SYR4 2017
79 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 TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MORENO, DAVID
Phone
956-464-3314
Email
[email protected]

Frequently asked questions about City of Donna

Is City of Donna tap water safe to drink?

EPA monitoring detected 29 contaminants in City of Donna'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 City of Donna's water?

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

How many people does City of Donna serve?

City of Donna reports serving 18,720 people in Texas, per its EPA record.

Has City of Donna had any water quality violations?

The EPA has 26 violations on file for City of Donna, of which 10 are health-based (a contaminant limit or required treatment was breached) and 1 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.