Water report · not indexed
What is in the water at 76487
One public water system serves this ZIP code in the federal records. Everything below comes from EPA monitoring data, and everything missing is named.
WALNUT CREEK SUD
PWSID TX1840008 · TX · serves 30,364 people
PFAS and lithium
1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 4 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| PFBA | 0.0073 µg/L | 4 | 8/7/2023 |
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
5 open health-based violation(s) recorded in SDWIS and not yet returned to compliance.
- MCL · contaminant code 2456 · began 2016-01-01
- MCL · contaminant code 2456 · began 2016-01-01
- MCL · contaminant code 2456 · began 2016-01-01
- MCL · contaminant code 2456 · began 2016-04-01
- MCL · contaminant code 2456 · began 2016-07-01
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.