Drinking water quality · 2024
What's in Austin, TX tap water
17 contaminants were measured in the Austin, TX water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 17
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- TX
Where your water comes from · EPA SDWIS
Austin, TX's drinking water comes from ground water, drawn from 3 sources.
Source
- 1 - SH 29 / FRONT OF SUBDIV
- 2 - BACK OF SUBDIV
- 3 - WHISPERING OAKS RD / BACK OF SUBDIV
Treatment
- PLANT 1 - 105 BURNET HILL DR
- PLANT 2 - 105 BURNET HILL DR
- 3 - WISPERING OAKS RD
Distribution
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based3 violations on record · most recent Apr 2008resolved
- Treatment technique violationHealth-based1 violation on record · most recent Oct 2024resolved
- Other1 violation on record · most recent Sep 20221 open
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChloramineA longer-lasting disinfectant made by combining chlorine with ammonia. | 2.3 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 45.5 ug/LAverageSystem-wide | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 15.6 ug/LAverageSystem-wide | None set | Within the limit |
| BromodichloromethaneA trihalomethane disinfection byproduct. | 13.7 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| BromoformA trihalomethane disinfection byproduct. | 1.7 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| ChloroformA trihalomethane formed when chlorine reacts with organic matter in water. | 14.1 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| DibromochloromethaneA trihalomethane disinfection byproduct. | 10.3 ug/LAverageSystem-wide | None set | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Cyanide | 50 ug/LAverageSystem-wide | None set | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.66 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.05 mg/LAverageSystem-wide | 10 mg/LMCL | Within the limit |
Physical & aggregate
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.000594 mg/L90th percentileAt the tap | 0.015 mg/LAction level | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.012 mg/LAverageSystem-wide | 2 mg/LMCL | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.003 mg/LAverageSystem-wide | 1.3 mg/LAction level | Within the limit |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Simazine | 0.03 ug/LAverageSystem-wide | None set | Within the limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 4.5 pCi/LAverageSystem-wide | None set | Detected — no federal limit |
People also ask about Austin, TX's water
+Is Austin, TX tap water safe to drink in 2024?
Every one of the 17 contaminants measured in Austin, TX's 2024 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Austin, TX tap water?
17 contaminants were measured in Austin, TX's 2024 Consumer Confidence Report, spanning disinfection byproducts, inorganic chemicals, and metals. 6 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from Austin, TX's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Austin, TX's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.