Water report · not indexed
What is in the water at 70582
3 public water systems serve this ZIP code in the federal records. Everything below comes from EPA monitoring data, and everything missing is named.
BAYOU TECHE WATER WORKS
PWSID LA1099002 · LA · serves 9,933 people · service area inferred by a model, not supplied by the state
PFAS and lithium
1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 2 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 17 µg/L | 2 | 4/4/2023 |
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
1 open health-based violation(s) recorded in SDWIS and not yet returned to compliance.
- TT · contaminant code 0700 · began 2022-02-07
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.
CITY OF ST MARTINVILLE WATER SYSTEM
PWSID LA1099007 · LA
PFAS and lithium
1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 2 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 32 µg/L | 2 | 8/5/2025 |
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
3 open health-based violation(s) recorded in SDWIS and not yet returned to compliance.
- TT · contaminant code 0700 · began 2023-02-24
- TT · contaminant code 0700 · began 2023-11-27
- TT · contaminant code 0700 · began 2025-11-05
Hardness
Too few readings to state a hardness. 1 station(s), 32 result(s). Below two stations and five results this page will not state a number: a median of two readings from one creek is not your water.
VILLAGE OF PARKS WATER SYSTEM
PWSID LA1099008 · LA · serves 12,801 people · service area inferred by a model, not supplied by the state
PFAS and lithium
5 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 5 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 32 µg/L | 1 | 4/10/2024 |
| PFOA | 0.0064 µg/L | 1 | 10/2/2024 |
| PFPeA | 0.0051 µg/L | 1 | 10/2/2024 |
| PFOS | 0.0043 µg/L | 1 | 10/2/2024 |
| PFHxA | 0.0033 µg/L | 1 | 10/2/2024 |
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
4 open health-based violation(s) recorded in SDWIS and not yet returned to compliance.
- TT · contaminant code 0700 · began 2019-11-21
- TT · contaminant code 0700 · began 2022-02-18
- TT · contaminant code 0700 · began 2022-02-18
- TT · contaminant code 0700 · began 2022-02-18
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 · 2 of 3 service areas here are modelled.