MCKINLEYVILLE C.S.D.: EPA violation history, explained
MCKINLEYVILLE C.S.D. has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 16,900 people get their water from it, across 5,969 connections.
Ranked against every other system in this dataset
MCKINLEYVILLE C.S.D. has 4 violations on record in total, 1 of them health-based - ranking it 8,826th of 12,903 systems by violation count, the 32th percentile nationally.
Against the CA average
Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - MCKINLEYVILLE C.S.D.'s 1 is at or below that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
MCKINLEYVILLE C.S.D.'s most recent violation on record is dated 2022-01-10, with the most recent health-based one dated 1993-01-06. Last reported to EPA: 06/22/2026.
The concern categories on record
MCKINLEYVILLE C.S.D.'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: 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 MCKINLEYVILLE C.S.D.'s record does not cover
Everything on this page is MCKINLEYVILLE C.S.D.'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 MCKINLEYVILLE C.S.D.'s customers' taps is household plumbing, invisible to a system-level record ranked 8,826th of 12,903 by violation count. The guide to what this data misses covers that gap.