DrinkingWaterCheck

What's in MARIPOSA PUBLIC UTILITY DIST's water?

MARIPOSA PUBLIC UTILITY DIST has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 2,000 people get their water from it, across 684 connections.

MARIPOSA PUBLIC UTILITY DIST's record against the rest of the country

52 total violations and 47 health-based ones put MARIPOSA PUBLIC UTILITY DIST at the 98th percentile nationally for violation burden, rank 304 of 12,903.

How MARIPOSA PUBLIC UTILITY DIST compares within CA

MARIPOSA PUBLIC UTILITY DIST's 47 health-based violations sit above the CA average of 5.8, across 803 systems statewide. 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 MARIPOSA PUBLIC UTILITY DIST is from 2013-01-04 (health-based: 2013-01-04). Last reported to EPA: 06/22/2026.

What kind of problem, specifically

MARIPOSA PUBLIC UTILITY DIST'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:

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 MARIPOSA PUBLIC UTILITY DIST'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 MARIPOSA PUBLIC UTILITY DIST's customers' taps is household plumbing, invisible to a system-level record ranked 304th of 12,903 by violation count. The guide to what this data misses covers that gap.