Magnolia-Guste Island, MO Water Quality
Is Magnolia-Guste Island's water safe to drink?
Magnolia-Guste Island's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. 2,847 people get their water from it, across 949 connections.
How this compares nationally
Out of 12,903 systems in this dataset, Magnolia-Guste Island ranks 11,244th by violation burden (13th percentile) - 5 violations total, 0 health-based.
Against the MO average
Magnolia-Guste Island's 0 health-based violations sit within the MO average of 6.1, across 327 systems statewide. See the lead and copper guide for why lead counts differently.
Most recent violation on record
Magnolia-Guste Island's most recent violation on record is dated 2013-01-10. Last reported to EPA: 06/23/2026.
What Magnolia-Guste Island's record does not cover
This is what Magnolia-Guste Island reported to its state primacy agency and EPA under the Safe Drinking Water Act - real regulatory record, not a lab test of your specific tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 5 logged violations can see. The guide to what this data misses covers that gap.