GREENFIELD COUNTY WD: EPA violation history, explained
GREENFIELD COUNTY WD has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 11,590 people through 3,545 service connections.
GREENFIELD COUNTY WD's record against the rest of the country
48 total violations and 39 health-based ones put GREENFIELD COUNTY WD at the 97th percentile nationally for violation burden, rank 402 of 12,903.
How GREENFIELD COUNTY WD compares within CA
GREENFIELD COUNTY WD's 39 health-based violations sit above 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
The last violation EPA has on record for GREENFIELD COUNTY WD is from 2019-01-04 (health-based: 2019-01-04). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
GREENFIELD COUNTY WD'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: Coliform (TCR); Revised Total Coliform Rule
- Other regulated metals - flagged from: Arsenic
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
This is what GREENFIELD COUNTY WD 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 GREENFIELD COUNTY WD's customers' taps is household plumbing, invisible to a system-level record ranked 402th of 12,903 by violation count. The guide to what this data misses covers that gap.