No health-based violations on EPA record since 2016.
Serves about 3,702 people (1,006 connections) with surface water from its own intake, and buys water from St John Water District 1.
From EPA's record for LA1095002. PurityMap is independent of St John Water District 2.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2023 to December 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 10 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2023-03-15 to 2023-12-04 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluorobutanesulfonic acid (PFBS) | 3.7 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluorobutanoic acid (PFBA) | 5.7 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-04 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-04 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-04 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-04 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-15 to 2023-12-19 | UCMR5 Analytical Results: ST JOHN WATER DISTRICT 2 (LA1095002) |
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.
Get PurityMap updates about this water system.
Follow this water →St John Water District 2's phone number on EPA record is 985-652-9569. Its mailing address is 1811 WEST AIRLINE HWY., LAPLACE, LA 70068.
According to EPA's record, St John Water District 2 uses surface water from its own intake, and buys water from St John Water District 1.
No health-based violations on EPA record since 2016. EPA also lists 7 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in St John Water District 2's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for St John Water District 2. Its phone number on EPA record is 985-652-9569. Its mailing address on EPA record is 1811 WEST AIRLINE HWY., LAPLACE, LA 70068. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.