Water report · not indexed
What is in the water at 78724
3 public water systems serve this ZIP code in the federal records. Everything below comes from EPA monitoring data, and everything missing is named.
CITY OF AUSTIN WATER & WASTEWATER
PWSID TX2270001 · TX · serves 1,115,323 people
PFAS and lithium
6 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 22 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| PFBA | 0.0084 µg/L | 4 | 7/30/2024 |
| PFHxS | 0.0062 µg/L | 6 | 7/30/2024 |
| PFBS | 0.0051 µg/L | 4 | 4/26/2024 |
| PFOS | 0.0048 µg/L | 2 | 3/11/2024 |
| PFPeA | 0.0041 µg/L | 4 | 4/26/2024 |
| PFHxA | 0.0033 µg/L | 2 | 3/11/2024 |
A detection is a measurement, not a violation and not a health finding. EPA states that UCMR 5 results do not indicate compliance or non-compliance with any limit.
Health-based violations
No open health-based violation on record. This covers MCL, treatment technique and MRDL violations in SDWIS that have not been returned to compliance. It excludes monitoring and reporting violations, which are the large majority nationally, so this is not “no violations”, and SDWIS completeness varies by state.
Hardness
Median hardness 324 mg/L as CaCO₃, measured at 18 stations serving this system across 128 results, 2015-02-12 to 2023-08-10. Measured in the water source and distribution area, not at a tap, and not in your home.
MANVILLE WSC
PWSID TX2270033 · TX · serves 39,648 people
PFAS and lithium
11 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 59 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 84 µg/L | 17 | 8/30/2023 |
| PFNA | 0.024 µg/L | 3 | 8/30/2023 |
| PFOS | 0.012 µg/L | 7 | 8/30/2023 |
| PFBS | 0.01 µg/L | 8 | 8/30/2023 |
| PFPeA | 0.0091 µg/L | 7 | 8/30/2023 |
| PFHxA | 0.0087 µg/L | 4 | 8/30/2023 |
| PFBA | 0.0074 µg/L | 3 | 8/30/2023 |
| PFHxS | 0.007 µg/L | 7 | 8/30/2023 |
| PFOA | 0.0059 µg/L | 1 | 2/22/2023 |
| PFHpA | 0.0043 µg/L | 1 | 2/22/2023 |
| PFUnA | 0.0027 µg/L | 1 | 2/22/2023 |
A detection is a measurement, not a violation and not a health finding. EPA states that UCMR 5 results do not indicate compliance or non-compliance with any limit.
Health-based violations
No open health-based violation on record. This covers MCL, treatment technique and MRDL violations in SDWIS that have not been returned to compliance. It excludes monitoring and reporting violations, which are the large majority nationally, so this is not “no violations”, and SDWIS completeness varies by state.
Hardness
No hardness measurement. Hardness is measured at environmental monitoring stations, and none fell inside this system’s service area. That is a gap in where monitoring happens, not a finding about the water.
AUSTINS COLONY
PWSID TX2270255 · TX · serves 9,987 people
PFAS and lithium
6 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 10 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 21 µg/L | 4 | 6/23/2025 |
| PFPeA | 0.012 µg/L | 1 | 12/16/2025 |
| PFBS | 0.0059 µg/L | 2 | 6/23/2025 |
| PFBA | 0.005 µg/L | 1 | 12/16/2025 |
| PFHxS | 0.0042 µg/L | 1 | 6/23/2025 |
| PFHxA | 0.0037 µg/L | 1 | 12/16/2025 |
A detection is a measurement, not a violation and not a health finding. EPA states that UCMR 5 results do not indicate compliance or non-compliance with any limit.
Health-based violations
No open health-based violation on record. This covers MCL, treatment technique and MRDL violations in SDWIS that have not been returned to compliance. It excludes monitoring and reporting violations, which are the large majority nationally, so this is not “no violations”, and SDWIS completeness varies by state.
Hardness
No hardness measurement. Hardness is measured at environmental monitoring stations, and none fell inside this system’s service area. That is a gap in where monitoring happens, not a finding about the water.
What this report cannot tell you
Every figure describes water at a sampling point: a treatment plant, an entry point to the distribution system, or a monitoring station. None of it describes water arriving at your tap. Plumbing between the two can add lead and copper, and if your home was built before 1986 a test kit tells you something no federal dataset can.
Sources: EPA UCMR 5 occurrence (final release, frozen July 2026) · EPA SDWIS health-based violations · USGS and state monitoring via the Water Quality Portal · EPA Public Water System Service Area Boundaries v3. Compiled 2026-09-01.