MADILL: EPA violation history, explained
MADILL had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. Population served: 3,410, over 1,713 connections.
MADILL's record against the rest of the country
MADILL has 99 violations on record in total, 67 of thems health-based - ranking it 165th of 12,903 systems by violation count, the 99th percentile nationally.
Against the OK average
Among the 240 OK systems in this dataset, the average is 39.5 health-based violations - MADILL's 67 is above that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
MADILL's most recent violation on record is dated 2027-06-12, with the most recent health-based one dated 2025-01-10. Last reported to EPA: 05/13/2026.
The concern categories on record
MADILL'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
- Synthetic organic chemicals / pesticides / VOCs - flagged from: CARBON, TOTAL
- Disinfection byproducts - flagged from: TTHM; Total Haloacetic Acids (HAA5)
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 MADILL's record does not cover
Everything on this page is MADILL'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 MADILL's customers' taps is household plumbing, invisible to a system-level record ranked 165th of 12,903 by violation count. The guide to what this data misses covers that gap.