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EPA SDWIS City OverviewWater Testing & Safety Guide

Austin, TX Water Quality Testing & Safety Report

EPA compliance records, water testing guidelines, and hardness metrics for all 80 ZIP codes in Austin, Texas

Quick EPA Verified Summary

Is Tap Water Safe to Drink in Austin, TX?

Yes, tap water in Austin, TX is safe to drink under EPA Safe Drinking Water Act standards. The city earns an average EPA Safety Grade of A (92/100) across 80 ZIP codes with 80 health violations and moderately hard (105 mg/L / 6.1 GPG) water. Certified testing is recommended for older plumbing or private wells.

Average Score

92/100

Health Violations

80

Water Hardness

Moderately Hard

105 mg/L (6.1 GPG)

High Lead Risk

13

of 80 ZIP codes

A

About Tap Water in Austin, TX

Drinking water in Austin, TX receives an average water quality grade of A (score: 92/100) across its 80 ZIP codes. Safe Drinking Water Act compliance monitoring is managed by local utilities including City of Austin Water & Wastewater.

⚠ Lead Risk Alert: Some ZIP codes in Austin are rated High or Very High for lead exposure risk based on EPA data. Search your specific ZIP code for a detailed lead level report.

Water Quality Testing in Austin, TX

Tap Water & Well Water Testing Recommendations

Testing your drinking water in Austin confirms whether contaminants like lead, nitrates, bacteria, and PFAS are entering your home. While municipal utilities test water before distribution, private plumbing and private well systems require homeowner testing.

Tap Water Testing Checklist

  • 1.Identify your plumbing age: Homes built before 1986 in Austin may have lead solder or lead service lines.
  • 2.Request your utility's latest Consumer Confidence Report (CCR) for annual municipal baseline data.
  • 3.Use an EPA-certified laboratory or state-certified test kit for precision lead and PFAS detection (standard DIY strips cannot reliably measure trace heavy metals).
  • 4.Collect a "first draw" sample: Test water that has sat motionless in pipes for at least 6 hours to check for plumbing corrosion.

Private Well Water Testing Checklist

  • •Private wells in TX are not monitored by the EPA or Texas Commission on Environmental Quality (TCEQ) — testing is 100% the homeowner's responsibility.
  • •Annual Test: Screen for Total Coliform Bacteria, E. coli, Nitrates/Nitrites, and pH every spring.
  • •Comprehensive Test (Every 3-5 Years): Test for heavy metals (Lead, Arsenic, Uranium), Volatile Organic Compounds (VOCs), and Hardness.
  • •Post-Disruption Testing: Immediately test well water following heavy floods, local construction, agricultural runoff, or sudden taste/odor changes.

Critical Water Testing Parameters for Austin Residents

ParameterHealth ReasonEPA Limit / Standard
Lead (Pb)Plumbing corrosion; dangerous neurotoxin for children15 ppb (Action Level) / 0 ppb Goal
Total Coliform & E. ColiBacterial contamination from sewage or surface runoff0 mg/L (Zero Tolerance)
Nitrates / NitritesFertilizer and septic tank seepage; causes blue baby syndrome10 mg/L (MCL)
Water Hardness (Ca & Mg)Affects appliance lifespan, scale buildup, and skin hydrationModerate (~100 mg/L)
PFAS ("Forever Chemicals")Industrial non-stick chemicals linked to metabolic and immune issues4.0 ppt (EPA 2024 Rule)
State Regulatory Oversight: Environmental standards and certified water lab registries in TX are maintained by the Texas Commission on Environmental Quality (TCEQ).

Health-Based Contaminant Violations in Austin

EPA records indicate that the following contaminants have exceeded Safe Drinking Water Act Maximum Contaminant Levels (MCLs) in Austin water systems over the past 5 years.

Fecal Coliform

Note: The presence of a past violation does not necessarily mean current water is unsafe. Utilities are required to take corrective action. Review your Consumer Confidence Report for the latest status.

Water Quality by ZIP Code — Austin, TX

Showing 80 of 80 monitored ZIP codes in Austin

A
73344

Austin, TX

Score: 98/1001 violation
A
78708

Austin, TX

Score: 98/1001 violation
A
78709

Austin, TX

Score: 98/1001 violation
A
78710

Austin, TX

Score: 98/1001 violation
A
78712

Austin, TX

Score: 98/1001 violation
A
78713

Austin, TX

Score: 98/1001 violation
A
78715

Austin, TX

Score: 98/1001 violation
A
78716

Austin, TX

Score: 98/1001 violation
A
78718

Austin, TX

Score: 98/1001 violation
A
78720

Austin, TX

Score: 98/1001 violation
A
78755

Austin, TX

Score: 98/1001 violation
A
78760

Austin, TX

Score: 98/1001 violation
A
78761

Austin, TX

Score: 98/1001 violation
A
78763

Austin, TX

Score: 98/1001 violation
A
78764

Austin, TX

Score: 98/1001 violation
A
78765

Austin, TX

Score: 98/1001 violation
A
78769

Austin, TX

Score: 98/1001 violation
A
78772

Austin, TX

Score: 98/1001 violation
A
78773

Austin, TX

Score: 98/1001 violation
A
78774

Austin, TX

Score: 98/1001 violation
A
78778

Austin, TX

Score: 98/1001 violation
A
78779

Austin, TX

Score: 98/1001 violation
A
78780

Austin, TX

Score: 98/1001 violation
A
78781

Austin, TX

Score: 98/1001 violation

All Austin, TX ZIP Code Reports (80 Total)

7334478708787097871078712787137871578716787187872078755787607876178763787647876578769787727877378774787787877978780787817878378785787887878978798787997330178711787147871778726787287873878739787427876278766787677876878702787057872278725787297873078732787337873578736787377874178748787497875278754787567870178703787047871978721787237872478727787317874678750787517875378757787587875978734787447874578747

Nearby Cities Water Quality & Testing in Texas

Compare tap water safety, EPA test scores, and water hardness across neighboring cities in Texas:

Afton, TX1 ZIP code
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Abbott, TX1 ZIP code
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Addison, TX1 ZIP code
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Abernathy, TX1 ZIP code
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Abilene, TX10 ZIP codes
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Ace, TX1 ZIP code
Grade B
Ackerly, TX1 ZIP code
Grade B
Alamo, TX1 ZIP code
Grade B

Frequently Asked Questions — Austin Water Quality & Testing

Is tap water safe to drink in Austin, TX?+
Yes — tap water in Austin meets federal EPA standards and earns a A grade. It is generally safe for healthy adults. As always, running your tap for 30 seconds before use and using a filter adds extra protection for vulnerable populations.
How do I test water quality in Austin, TX?+
To test water quality in Austin, you can order an EPA-compliant drinking water test kit or submit samples to a state-certified environmental testing laboratory in TX. Testing is especially recommended for homes built before 1986 (to check for lead in plumbing) and for properties with private well systems.
Should I test private well water in Austin?+
Yes. Unlike municipal tap water, private wells in Austin, TX are not monitored or regulated by the EPA or local utilities. Private well owners are responsible for testing their water annually for coliform bacteria and nitrates, and every 3 to 5 years for heavy metals (lead, arsenic) and volatile organic compounds.
How hard is the tap water in Austin?+
Tap water in Austin is classified as Moderately Hard with an estimated average hardness of 105 mg/L (6.1 GPG). A water softener is generally optional.
What is the water quality score for Austin?+
The average water quality score across 80 ZIP codes in Austin, TX is 92/100. Scores are derived from EPA violation history, lead levels, enforcement actions, and infrastructure risk indicators. Individual ZIP codes may vary — search your specific ZIP above for a personalized report.
Does Austin have lead in its tap water?+
13 out of 80 ZIP codes in Austin are rated High or Very High for lead exposure risk. Older homes built before 1986 may have lead service lines or plumbing fixtures. Residents should run their tap for 30 seconds before use and consider a certified NSF/ANSI 53 lead filter.
Where does Austin's tap water come from?+
Tap water in Austin, TX primarily comes from surface water. Surface water systems treat water from rivers, lakes, or reservoirs using filtration, sedimentation, and disinfection before it reaches your tap.

Looking for water quality reports in other cities in Texas?

View All Cities & ZIPs in Texas