No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting October 2016.
Serves about 7,226 people (3,454 connections) with surface water from its own intake, and buys water from Harlingen Water Works System.
From EPA's record for TX0310003. PurityMap is independent of City of La Feria.
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2 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From February 2021 | Interim Enhanced Surface Water Treatment Rule | – | – | Resolved |
| Oct–Dec 2016 | Total trihalomethanes (TTHM) | 0.085 mg/L | 0.080 mg/L | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2023 to December 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 51.9 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 | 2023-02-21 to 2023-11-08 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluorooctanesulfonic acid (PFOS) | 4.1 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluorohexanoic acid (PFHxA) | 4 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluorobutanoic acid (PFBA) | 6.8 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluoropentanoic acid (PFPeA) | 3.5 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| 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 | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| 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 | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| 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 | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| 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 | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| 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 | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-08 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-08 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| 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 | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-08 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-21 to 2023-11-08 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-09 to 2023-12-20 | UCMR5 Analytical Results: CITY OF LA FERIA (TX0310003) |
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 La Feria's phone number on EPA record is 956-797-2261. Its mailing address is 115 E COMMERCIAL AVE, LA FERIA, TX 78559-5002.
According to EPA's record, City of La Feria uses surface water from its own intake, and buys water from Harlingen Water Works System.
EPA's record shows 2 health-based violations for City of La Feria in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting October 2016. EPA also lists 14 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 La Feria's latest lead and copper round, which ended in December 2023, was 1.6 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for City of La Feria. Its phone number on EPA record is 956-797-2261. Its mailing address on EPA record is 115 E COMMERCIAL AVE, LA FERIA, TX 78559-5002. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.