No open health-based violations on EPA record in the last 10 years.
Serves about 7,623 people (2,541 connections) with groundwater bought from Lafayette Utilities System and City of Youngsville Water System.
From EPA's record for LA1055195. PurityMap is independent of City of Youngsville Purchase WS.
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1 health-based violation in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From February 2021 | Groundwater Rule | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2025 to August 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 29.5 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| 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 | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| 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 | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| 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 | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| 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 | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| 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 | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-18 to 2025-08-11 | UCMR5 Analytical Results: CITY OF YOUNGSVILLE PURCHASE WS (LA1055195) |
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 →City of Youngsville Purchase WS's phone number on EPA record is 337-856-4181. Its mailing address is City of Youngsville Water System, P.O. BOX 592, YOUNGSVILLE, LA 70592.
According to EPA's record, City of Youngsville Purchase WS uses groundwater bought from Lafayette Utilities System and City of Youngsville Water System.
EPA's record shows 1 health-based violation for City of Youngsville Purchase WS in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. EPA also lists 2 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in City of Youngsville Purchase WS's latest lead and copper round, which ended in December 2024, was 1 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for City of Youngsville Purchase WS. Its phone number on EPA record is 337-856-4181. Its mailing address on EPA record is City of Youngsville Water System, P.O. BOX 592, YOUNGSVILLE, LA 70592. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.