GREAT OAKS WC INC: EPA violation history, explained
GREAT OAKS WC INC has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 110,088 people through 21,415 service connections.
GREAT OAKS WC INC's record against the rest of the country
6 total violations and 3 health-based ones put GREAT OAKS WC INC at the 58th percentile nationally for violation burden, rank 5,467 of 12,903.
How GREAT OAKS WC INC compares within CA
CA's 803 covered systems average 5.8 health-based violations each; GREAT OAKS WC INC carries 3, not more than typical for the state. 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 GREAT OAKS WC INC is from 2015-01-03 (health-based: 2015-01-03). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
GREAT OAKS WC INC'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)
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 GREAT OAKS WC INC 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 GREAT OAKS WC INC's customers' taps is household plumbing, invisible to a system-level record ranked 5,467th of 12,903 by violation count. The guide to what this data misses covers that gap.