No open health-based violations on EPA record in the last 10 years.
Serves about 8,353 people (1,000 connections) with surface water from its own intake.
From EPA's record for AZ0414082. PurityMap is independent of Usmc Yuma Main System.
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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 May 2024 | Groundwater Rule | – | – | Resolved |
| From May 2024 | Groundwater Rule | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2023 to January 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 113 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 | 2023-02-06 to 2023-11-06 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluorohexanesulfonic acid (PFHxS) | 3.1 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| 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 | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| 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 | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| 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 | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| 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 | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| 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 | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| 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 | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-06 to 2024-01-16 | UCMR5 Analytical Results: USMC YUMA MAIN SYSTEM (AZ0414082) |
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 →Usmc Yuma Main System's phone number on EPA record is 928-269-2809. Its mailing address is MCAS Yuma, Bldg. 328, YUMA, AZ 85369.
According to EPA's record, Usmc Yuma Main System uses surface water from its own intake.
EPA's record shows 2 health-based violations for Usmc Yuma Main System in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. EPA also lists 67 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Usmc Yuma Main System's latest lead and copper round, which ended in December 2024, was 3 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Usmc Yuma Main System. Its phone number on EPA record is 928-269-2809. Its mailing address on EPA record is MCAS Yuma, Bldg. 328, YUMA, AZ 85369. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.