Austin Drinking Water Quality
What's Really in Your Tap Water?
Austin tap water is generally safe, though there are a few things worth knowing. At 322.5 ppm (18.9 gpg), the water is quite hard — you may notice mineral buildup on fixtures. Lead levels test well below the EPA action level. PFAS chemicals were detected but are within EPA limits. No violations have been recorded in the past 3 years.
Generally Safe
Minor compliance issues
18.9 GPG hardness
Lead
Below EPA action level
EPA action level: 15 ppb
Hardness
Very Hard water
US Average: 100 ppm
Is Austin Tap Water Safe to Drink?
Austin tap water meets EPA health standards, with some contaminants worth monitoring.
14 contaminants were tested in Austin's water. 12 were detected — all within EPA limits.
Disinfectants — Chloramines is at 2.29 ppm — 57% of the EPA limit (4 ppm). Within legal limits, but elevated.
Disinfectants made from chlorine and ammonia, used as an alternative to chlorine. Last longer in the distribution system. Safe at regulated levels. Produces fewer disinfection byproducts than chlorine, but can be harmful to fish and dialysis patients.
→ Catalytic carbon filters or reverse osmosis can remove chloramines. Standard carbon filters are less effective.
PFAS "Forever Chemicals" — 4 PFAS compounds detected, all within current EPA limits. Highest: 6:2 FTS at 15.9 ppt.
Metals — 1 contaminant detected, all within EPA limits. Highest: Barium at 0.012 ppm (1% of EPA limit).
Disinfection Byproducts — 2 contaminants detected, all within EPA limits. Highest: Total Trihalomethanes (TTHM) at 38.6 ppb (48% of EPA limit).
Inorganic Chemicals — 2 contaminants detected, all within EPA limits. Highest: Fluoride at 0.57 ppm (14% of EPA limit).
The data below shows test results from 1 water utility serving 1.1M people in the Austin area.
Do I Need a Water Filter?
PFAS chemicals were detected in Austin water, though within EPA limits. An activated carbon or RO filter can further reduce PFAS exposure. With very hard water (322.5 ppm), a water softener can reduce scale buildup in pipes, appliances, and water heaters.
How Hard is Austin Water?
322.5 ppm
18.9 grains per gallon
Very hard water causes significant mineral buildup. A water softener is recommended.
Impact on Your Home
Shower
Dries out skin & hair
Kitchen
Heavy mineral deposits
Laundry
Stiff, dingy clothes
Appliances
Significant scale
Regional Comparison
Values in ppm (mg/L as CaCO₃)
Do I Need a Water Softener?
At 322.5 ppm, Austin has very hard water. A water softener is recommended to prevent scale buildup in water heaters, dishwashers, and pipes. Hard water can reduce appliance efficiency by up to 30% and increase energy costs. A whole-house water softener or salt-free conditioner can help.
Range: 109–119 ppm
Based on 106 samples from Austin Water 2024 Consumer Confidence Report (2024)
Your pipes tell a different story
The data above shows what leaves the treatment plant—not what comes out of your faucet. Old pipes, lead solder, and building plumbing can add contaminants the city never tests for. Know exactly what's in your Austin tap water.
Home test kits detect lead, bacteria, pesticides, and 100+ other contaminants. Results in 5-10 business days from certified labs.
Lead & Contaminants
Understanding lead levels and water quality violations in Austin
Lead Test Results
90th Percentile Lead Level
0 ppb
Austin lead levels are well within safe limits.
Regular testing is still recommended, as lead can enter water through household plumbing.
Last sampled: 2024-12-31
About Lead in Drinking Water
What is Lead in Water?
Lead is a toxic metal that can dissolve into drinking water from older pipes, solder, and fixtures. It's invisible, tasteless, and odorless, making testing the only way to detect it. The EPA has set an action level of 15 ppb, though they emphasize there is no safe level of lead exposure.
Potential Health Effects
Developmental delays, learning difficulties, lower IQ, behavioral issues
High blood pressure, kidney damage, reproductive issues
How to Reduce Exposure
- •Run water for 30 seconds to 2 minutes before drinking, especially in the morning
- •Use cold water for cooking and drinking (hot water dissolves more lead)
- •Install a NSF-certified filter designed to remove lead
- •Test your water, especially if your home was built before 1986
PFAS “Forever Chemicals”
PFAS detected but within EPA limits
PFAS are synthetic chemicals that don't break down in the environment. Levels are within current EPA standards.
Chloramines
57% of EPA limit
Range: 0.46–3.1 ppm
Total Trihalomethanes (TTHM)
48% of EPA limit
Range: 25.5–54.7 ppb
Haloacetic Acids (HAA5)
17% of EPA limit
Range: 6.1–15.7 ppb
Fluoride
14% of EPA limit
Range: 0.21–0.81 ppm
Other Detected Contaminants
14 contaminants detected
| Contaminant | Your Water | Limit (MCL) | Status |
|---|---|---|---|
Fluoride | 0.57 ppm Range: 0.21-0.81 | 4 ppm Goal: 4 ppm | Safe 14% of limit |
Nitrate (as Nitrogen) | 0.1 ppm Range: 0.09-0.1 | 10 ppm Goal: 10 ppm | Safe 1% of limit |
Haloacetic Acids (HAA5) | 10.1 ppb Range: 6.1-15.7 | 60 ppb | Safe 17% of limit |
Total Trihalomethanes (TTHM) | 38.6 ppb Range: 25.5-54.7 | 80 ppb | Safe 48% of limit |
Chloramines | 2.29 ppm Range: 0.46-3.1 | 4 ppm | Caution 57% of limit |
Barium | 0.012 ppm Range: 0.01-0.015 | 2 ppm Goal: 2 ppm | Safe 1% of limit |
PFHXA | 3.71 ppt Range: 0-5.1 UCMR5 - 16/96 samples detected | N/A | Safe |
PFPEA | 4.04 ppt Range: 0-6.7 UCMR5 - 11/96 samples detected | N/A | Safe |
6:2 FTS | 15.9 ppt Range: 0-42.6 UCMR5 - 10/96 samples detected | N/A | Safe |
PFBA | 7.16 ppt Range: 0-10.6 UCMR5 - 9/96 samples detected | N/A | Safe |
PFHXA | 3.71 ppt Range: 0-5.1 UCMR5 - 16/96 samples detected | N/A | Safe |
PFOA | 0 ppt Range: 0-0 ND - UCMR5 - 0/96 samples detected | 4 ppt 0 | Safe |
PFOS | 0 ppt Range: 0-0 ND - UCMR5 - 0/96 samples detected | 4 ppt 0 | Safe |
PFPEA | 4.04 ppt Range: 0-6.7 UCMR5 - 11/96 samples detected | N/A | Safe |
MCL = Maximum Contaminant Level (EPA legal limit)
EPA Compliance History
Excellent Record
No violations in past 3 yearsThis utility has maintained full EPA compliance. No action needed, but regular home testing is still recommended.
3-Year Violation Summary
0
Total Violations
0
Health-Related
0
Administrative
Health-Related Violations
Contaminant exceeded EPA safety limits. May require filter or alternative water source.
Administrative Violations
Missed testing deadlines or reporting. Does not indicate water quality issues.
Who Provides Austin's Water?
Utility Name
CITY OF AUSTIN WATER & WASTEWATER
EPA System ID (PWSID)
TX2270001
Primary Water Source
Surface Water
Population Served
1.1M
Frequently Asked Questions
Common questions about Austin tap water quality
Nearby Cities in Texas
Houston
Moderate water
San Antonio
Very Hard water
Dallas
Hard water
Fort Worth
Hard water
El Paso
Very Hard water
Arlington
Hard water
This data is for informational purposes only. Water quality can vary by neighborhood and building. For official reports, contact your local water utility or the EPA. Learn about our methodology
Data source: Austin Water 2024 Consumer Confidence Report (2024) • View report