Haloacetic acids (HAA5) above the legal limit in the period starting October 2025.
Serves about 2,823 people (1,200 connections) with surface water from its own intake, and buys water from City of Morgan City Water System.
From EPA's record for LA1101009. PurityMap is independent of St Mary Parish Water Sewerage Comm 1.
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3 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Oct–Dec 2025 | Haloacetic acids (HAA5) | 0.064 mg/L | 0.060 mg/L | Archived |
| Jul–Sep 2025 | Haloacetic acids (HAA5) | 0.069 mg/L | 0.060 mg/L | Archived |
| From October 2024 | Lead and copper rule revisions | – | – | Resolved |
No lab results for other contaminants (like PFAS) are on file for this system. EPA required that testing from systems serving more than 3,300 people, plus a sample of smaller ones.
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
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Follow this water →According to EPA's record, St Mary Parish Water Sewerage Comm 1 uses surface water from its own intake, and buys water from City of Morgan City Water System.
EPA's record shows 3 health-based violations for St Mary Parish Water Sewerage Comm 1 in the 10 years to July 9, 2026. Haloacetic acids (HAA5) were above the legal limit in the period starting October 2025. EPA also lists 6 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in St Mary Parish Water Sewerage Comm 1's latest lead and copper round, which ended in December 2025, was 0.82 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for St Mary Parish Water Sewerage Comm 1. Its mailing address on EPA record is ST. MARY W & S COMM. NO. 1, PO Box 309, AMELIA, LA 70340. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.