GREEN VALLEY MWC: EPA violation history, explained
GREEN VALLEY MWC had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. It serves 2,993 people through 1,069 service connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, GREEN VALLEY MWC ranks 6,613th by violation burden (49th percentile) - 9 violations total, 2 health-baseds.
Against the CA average
CA's 803 covered systems average 5.8 health-based violations each; GREEN VALLEY MWC carries 2, not more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
GREEN VALLEY MWC's most recent violation on record is dated 2024-01-10, with the most recent health-based one dated 2024-01-10. Last reported to EPA: 06/22/2026.
The concern categories on record
GREEN VALLEY MWC'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)
- Radionuclides - flagged from: Combined Uranium
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 GREEN VALLEY MWC's record does not cover
Everything on this page is GREEN VALLEY MWC'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 GREEN VALLEY MWC's customers' taps is household plumbing, invisible to a system-level record ranked 6,613th of 12,903 by violation count. The guide to what this data misses covers that gap.