Is USMC YUMA MAIN SYSTEM's water safe to drink?
USMC YUMA MAIN SYSTEM had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 8,353 people get their water from it, across 1,000 connections.
Ranked against every other system in this dataset
USMC YUMA MAIN SYSTEM has 241 violations on record in total, 7 of thems health-based - ranking it 2,539th of 12,903 systems by violation count, the 80th percentile nationally.
How USMC YUMA MAIN SYSTEM compares within AZ
Among the 199 AZ systems in this dataset, the average is 8.2 health-based violations - USMC YUMA MAIN SYSTEM's 7 is at or below that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for USMC YUMA MAIN SYSTEM is from 2025-02-10 (health-based: 2024-12-05). Last reported to EPA: 05/14/2026.
What kind of problem, specifically
USMC YUMA MAIN SYSTEM's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Microbial contamination / treatment technique - flagged from: Coliform (TCR); Groundwater Rule
- Other regulated metals - flagged from: Arsenic
- Disinfection byproducts - flagged from: TTHM
The most severe category on record is microbial contamination / treatment technique, which points toward a microbial-class filter if you want to address it directly.
What this data is and is not
Everything on this page is USMC YUMA MAIN SYSTEM's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and USMC YUMA MAIN SYSTEM's customers' taps is household plumbing, invisible to a system-level record ranked 2,539th of 12,903 by violation count. The guide to what this data misses covers that gap.