What's in VANDALIA PWS's water?
VANDALIA PWS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 3,140, over 1,222 connections.
VANDALIA PWS's record against the rest of the country
VANDALIA PWS has 32 violations on record in total, 28 of thems health-based - ranking it 634th of 12,903 systems by violation count, the 95th percentile nationally.
Against the MO average
Among the 327 MO systems in this dataset, the average is 6.1 health-based violations - VANDALIA PWS's 28 is above that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
VANDALIA PWS's most recent violation on record is dated 2015-01-07, with the most recent health-based one dated 2015-01-07. Last reported to EPA: 06/16/2026.
The concern categories on record
VANDALIA PWS'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:
- Disinfection byproducts - flagged from: TTHM; Total Haloacetic Acids (HAA5)
The most severe category on record is disinfection byproducts, which points toward a carbon-class filter if you want to address it directly.
What VANDALIA PWS's record does not cover
Everything on this page is VANDALIA PWS's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 32 logged violations can see. The guide to what this data misses covers that gap.