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Tap water quality report

Onion Creek Meadows

EPA monitoring tested this supplier for 79 contaminants and detected 23. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

79
contaminants tested
23
detected
696
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
11
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1992-02-01 → 1992-02-29
MCL Health-based Archived 1984-02-01 → 1985-01-31
MCL Health-based Archived 1979-05-25 → 1979-06-24
MCL Health-based Archived 1979-05-25 → 1980-05-24
MR Monitoring Resolved 2016-12-30
MR Monitoring Resolved 2016-12-30
MR Monitoring Resolved 2015-04-28
MR Monitoring Resolved 2015-04-28
MR Monitoring Resolved 2015-04-28
MR Monitoring Resolved 2015-04-28

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
413.5 µg/L 4.1%
of the EPA limit 10000 µg/L
worst single sample: 420 µg/L
34/48 SYR4 2012–2019
Copper
438.2 µg/L 34%
of the EPA limit 1300 µg/L
worst single sample: 484 µg/L
22/34 SYR4 2012–2019
Fluoride
3332 µg/L 83%
of the EPA limit 4000 µg/L
worst single sample: 3360 µg/L
15/15 SYR4 2012–2019
Bromodichloromethane
9.775 µg/L
No EPA limit set
worst single sample: 17.9 µg/L
14/25 SYR4 2012–2019
Dibromochloromethane
4.74 µg/L
No EPA limit set
worst single sample: 5 µg/L
14/25 SYR4 2012–2019
Bromoform
1.8 µg/L
No EPA limit set
worst single sample: 2.2 µg/L
11/25 SYR4 2012–2019
Chloroform
38.32 µg/L
No EPA limit set
worst single sample: 53.8 µg/L
10/25 SYR4 2012–2019
TTHM
55.86 µg/L 70%
of the EPA limit 80 µg/L
worst single sample: 76.7 µg/L
9/9 SYR4 2013–2019
Barium
116.76 µg/L 5.8%
of the EPA limit 2000 µg/L
worst single sample: 126 µg/L
7/7 SYR4 2012–2018
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 7/7 LCR 2025
Nitrate-Nitrite
242.5 µg/L 2.4%
of the EPA limit 10000 µg/L
worst single sample: 280 µg/L
6/8 SYR4 2012–2019
Combined Radium (-226 And -228)
2.36 pCi/L 47%
of the EPA limit 5 pCi/L
worst single sample: 2.45 pCi/L
5/5 SYR4 2012–2018
Gross Beta Particle Activity
7.88 pCi/L
No EPA limit set
worst single sample: 8.3 pCi/L
5/5 SYR4 2012–2018
Gross Alpha, Excl. Radon And U
12.76 pCi/L 85%
of the EPA limit 15 pCi/L
worst single sample: 13.4 pCi/L
3/3 SYR4 2015–2018
Lead
11.19 µg/L 75%
of the EPA limit 15 µg/L
worst single sample: 12.3 µg/L
3/34 SYR4 2012–2019
Dibromoacetic Acid
1.19 µg/L
No EPA limit set
worst single sample: 1.2 µg/L
2/9 SYR4 2013–2019
Dichloroacetic Acid
14.15 µg/L
No EPA limit set
worst single sample: 14.8 µg/L
2/9 SYR4 2013–2019
Toluene
3.17 µg/L 0.3%
of the EPA limit 1000 µg/L
worst single sample: 3.3 µg/L
2/16 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
20.945 µg/L 35%
of the EPA limit 60 µg/L
worst single sample: 21.9 µg/L
2/9 SYR4 2013–2019
Cyanide
9.4 µg/L 4.7%
of the EPA limit 200 µg/L
 1/7 SYR4 2012–2018
Chromium
1.16 µg/L 1.2%
of the EPA limit 100 µg/L
 1/7 SYR4 2012–2018
Monochloroacetic Acid
2.8 µg/L
No EPA limit set
 1/9 SYR4 2013–2019
Trichloroacetic Acid
3.1 µg/L
No EPA limit set
 1/9 SYR4 2013–2019
56 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, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
FOLTZ, SCOT, W
Phone
512-990-4400
Email
swfoltz@aquaamerica.com

Frequently asked questions about Onion Creek Meadows

Is Onion Creek Meadows tap water safe to drink?

EPA monitoring detected 23 contaminants in Onion Creek Meadows'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 Onion Creek Meadows's water?

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

How many people does Onion Creek Meadows serve?

Onion Creek Meadows reports serving 696 people in Texas, per its EPA record.

Has Onion Creek Meadows had any water quality violations?

The EPA has 11 violations on file for Onion Creek Meadows, 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.