EL RENO: EPA violation history, explained
EL RENO had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 16,212 people get their water from it, across 6,093 connections.
Ranked against every other system in this dataset
89 total violations and 40 health-based ones put EL RENO at the 97th percentile nationally for violation burden, rank 376 of 12,903.
How EL RENO compares within OK
EL RENO's 40 health-based violations sit above the OK average of 39.5, across 240 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 EL RENO is from 2025-05-10 (health-based: 2025-05-10). Last reported to EPA: 05/13/2026.
What kind of problem, specifically
EL RENO'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:
- Lead & copper - flagged from: LEAD AND COPPER RULE REVISIONS
- Microbial contamination / treatment technique - flagged from: Coliform (TCR); Interim Enhanced Surface Water Treatment Rule; Surface Water Treatment Rule
- Disinfection byproducts - flagged from: TTHM
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What this data is and is not
EL RENO'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. This record - 40 health-based violations on file for EL RENO - stops at the meter and cannot see household plumbing on the other side of it. The guide to what this data misses covers that gap.