MASON CO PSD-LETART: EPA violation history, explained
MASON CO PSD-LETART has at least one health-based violation EPA's ECHO database still lists as unaddressed - the required fix has not been reported complete. 3,303 people get their water from it, across 1,388 connections.
MASON CO PSD-LETART's record against the rest of the country
24 total violations and 1 health-based ones put MASON CO PSD-LETART at the 40th percentile nationally for violation burden, rank 7,750 of 12,903.
How MASON CO PSD-LETART compares within
's 244 covered systems average 11.2 health-based violations each; MASON CO PSD-LETART carries 1, not more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
The last violation EPA has on record for MASON CO PSD-LETART is from 2027-01-03 (health-based: 2027-01-03). Last reported to EPA: 05/19/2026.
What kind of problem, specifically
MASON CO PSD-LETART'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: Groundwater Rule
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
MASON CO PSD-LETART'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. Between the utility's meter and MASON CO PSD-LETART's customers' taps is household plumbing, invisible to a system-level record ranked 7,750th of 12,903 by violation count. The guide to what this data misses covers that gap.