Nitrate above the legal limit in the period starting January 2026.
Serves about 7,903 people (3,085 connections) with groundwater from its own wells.
From EPA's record for AZ0411030. PurityMap is independent of City of Eloy.
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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 January 2026 | Nitrate | 11 mg/L | 10 mg/L | Archived |
| From January 2026 | Nitrate | 11 mg/L | 10 mg/L | Archived |
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2024 to August 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 37 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 | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| 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 | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| 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 | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| 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 | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| 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 | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| 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 | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| 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 | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-04 to 2024-08-07 | UCMR5 Analytical Results: ELOY CITY OF (AZ0411030) |
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 →According to EPA's record, City of Eloy uses groundwater from its own wells.
EPA's record shows 2 health-based violations for City of Eloy in the 10 years to July 9, 2026. Nitrate was above the legal limit in the period starting January 2026. EPA also lists 30 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 Eloy's latest lead and copper round, which ended in December 2025, was 1.8 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for City of Eloy. Its mailing address on EPA record is 1137 W Houser Road, ELOY, AZ 85131. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.