Water report · not indexed
What is in the water at 76661
2 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 MARLIN
PWSID TX0730002 · TX · serves 5,967 people
PFAS and lithium
1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 1 sample.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| PFBA | 0.0062 µg/L | 1 | 3/12/2025 |
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
6 open health-based violation(s) recorded in SDWIS and not yet returned to compliance.
- MCL · contaminant code 2456 · began 2024-01-01
- MCL · contaminant code 2456 · began 2024-04-01
- MCL · contaminant code 2456 · began 2024-07-01
- MCL · contaminant code 2456 · began 2025-10-01
- MCL · contaminant code 2456 · began 2026-01-01
- MCL · contaminant code 2456 · began 2026-04-01
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.
TRI COUNTY SUD
PWSID TX0730004 · TX · serves 5,353 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 |
|---|---|---|---|
| lithium | 330 µg/L | 4 | 4/3/2023 |
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
121 open health-based violation(s) recorded in SDWIS and not yet returned to compliance.
- MCL · contaminant code 1005 · began 2016-01-01
- MCL · contaminant code 1005 · began 2016-01-01
- MCL · contaminant code 1005 · began 2016-01-01
- MCL · contaminant code 1005 · began 2016-04-01
- MCL · contaminant code 1005 · began 2016-04-01
- MCL · contaminant code 1005 · began 2016-04-01
- MCL · contaminant code 1005 · began 2016-07-01
- MCL · contaminant code 1005 · 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.