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Tap water quality report

Arroyo Doble Water

EPA monitoring tested this supplier for 79 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

79
contaminants tested
20
detected
945
people served
4
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
Ground water
Ownership
Private
Counties served
Travis

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
21
violations on file
1
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
MON Monitoring Resolved 2025-12-01 → 2025-12-31
MON Monitoring Resolved 2025-12-01 → 2025-12-31
MON Monitoring Resolved 2025-12-01 → 2025-12-31
MR Monitoring Resolved 2025-10-01 → 2025-12-31
MR Monitoring Resolved 2025-10-01 → 2025-12-31
MR Monitoring Resolved 2025-10-01 → 2025-12-31

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
Nitrate
1644 µg/L 16%
of the EPA limit 10000 µg/L
worst single sample: 1670 µg/L
34/34 SYR4 2012–2019
Copper
150 µg/L 12%
of the EPA limit 1300 µg/L
 22/22 SYR4 2014–2017
Dibromochloromethane
3.12 µg/L
No EPA limit set
worst single sample: 3.2 µg/L
17/19 SYR4 2013–2019
Bromodichloromethane
2.725 µg/L
No EPA limit set
worst single sample: 3.1 µg/L
16/19 SYR4 2013–2019
Chloroform
3.24 µg/L
No EPA limit set
worst single sample: 3.5 µg/L
14/19 SYR4 2013–2019
Dichloroacetic Acid
4.225 µg/L
No EPA limit set
worst single sample: 4.4 µg/L
8/8 SYR4 2013–2019
TTHM
8.9 µg/L 11%
of the EPA limit 80 µg/L
 8/8 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
4.875 µg/L 8.1%
of the EPA limit 60 µg/L
worst single sample: 5.4 µg/L
8/8 SYR4 2013–2019
Bromoform
2.58 µg/L
No EPA limit set
worst single sample: 3 µg/L
7/19 SYR4 2013–2019
Fluoride
1667.5 µg/L 42%
of the EPA limit 4000 µg/L
worst single sample: 1670 µg/L
6/6 SYR4 2012–2018
Lead
0.0010 mg/L 6.9%
of the EPA limit 0.0150 mg/L
 6/6 LCR 2023
Nitrate-Nitrite
1618 µg/L 16%
of the EPA limit 10000 µg/L
worst single sample: 1620 µg/L
5/5 SYR4 2012–2019
Xylenes, Total
4.66 µg/L 0%
of the EPA limit 10000 µg/L
worst single sample: 5.2 µg/L
5/11 SYR4 2014–2019
Barium
129.55 µg/L 6.5%
of the EPA limit 2000 µg/L
worst single sample: 130 µg/L
4/4 SYR4 2015–2018
Gross Beta Particle Activity
4.38 pCi/L
No EPA limit set
worst single sample: 4.4 pCi/L
3/5 SYR4 2012–2018
Combined Radium (-226 And -228)
3.005 pCi/L 60%
of the EPA limit 5 pCi/L
worst single sample: 3.1 pCi/L
2/3 SYR4 2012–2018
Gross Alpha, Excl. Radon And U
6.71 pCi/L 45%
of the EPA limit 15 pCi/L
worst single sample: 6.9 pCi/L
2/3 SYR4 2015–2018
Ethylbenzene
0.8000 µg/L 0.1%
of the EPA limit 700 µg/L
 1/11 SYR4 2014–2019
Lead
5.2 µg/L 35%
of the EPA limit 15 µg/L
 1/22 SYR4 2014–2017
Trichloroacetic Acid
1 µg/L
No EPA limit set
 1/8 SYR4 2013–2019
59 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 TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BARRY, CHUCK
Phone
737-376-2534
Email
chuck.barry@nexuswg.com

Frequently asked questions about Arroyo Doble Water

Is Arroyo Doble Water tap water safe to drink?

EPA monitoring detected 20 contaminants in Arroyo Doble Water'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 Arroyo Doble Water's water?

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

How many people does Arroyo Doble Water serve?

Arroyo Doble Water reports serving 945 people in Texas, per its EPA record.

Has Arroyo Doble Water had any water quality violations?

The EPA has 21 violations on file for Arroyo Doble Water, of which 4 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.