What's in EL DORADO ID - MAIN's water?
EL DORADO ID - MAIN has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 132,171 people get their water from it, across 43,404 connections.
Ranked against every other system in this dataset
5 total violations and 3 health-based ones put EL DORADO ID - MAIN at the 57th percentile nationally for violation burden, rank 5,518 of 12,903.
Against the CA average
EL DORADO ID - MAIN's 3 health-based violations sit within 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
EL DORADO ID - MAIN's most recent violation on record is dated 2012-01-12, with the most recent health-based one dated 2004-10-07. Last reported to EPA: 06/22/2026.
The concern categories on record
EL DORADO ID - MAIN'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: Interim Enhanced Surface Water Treatment Rule; Surface Water Treatment 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 EL DORADO ID - MAIN's record does not cover
This is what EL DORADO ID - MAIN 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. Between the utility's meter and EL DORADO ID - MAIN's customers' taps is household plumbing, invisible to a system-level record ranked 5,518th of 12,903 by violation count. The guide to what this data misses covers that gap.