Is MAYVILLE WATERWORKS's water safe to drink?
MAYVILLE WATERWORKS has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 5,112, over 1,893 connections.
How this compares nationally
MAYVILLE WATERWORKS has 12 violations on record in total, 6 of thems health-based - ranking it 3,224th of 12,903 systems by violation count, the 75th percentile nationally.
Against the average
's 244 covered systems average 11.2 health-based violations each; MAYVILLE WATERWORKS carries 6, not more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
MAYVILLE WATERWORKS's most recent violation on record is dated 2018-03-11, with the most recent health-based one dated 2010-01-07. Last reported to EPA: 05/29/2026.
The concern categories on record
MAYVILLE WATERWORKS'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 Radium (-226 and -228)
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 MAYVILLE WATERWORKS's record does not cover
MAYVILLE WATERWORKS's numbers here come from its own required reporting to EPA under the Safe Drinking Water Act, not from an independent test of your glass of water. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 12 logged violations can see. The guide to what this data misses covers that gap.