What's in NORTH GUALALA WATER COMPANY's water?
NORTH GUALALA WATER COMPANY has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 2,593 people get their water from it, across 1,062 connections.
Ranked against every other system in this dataset
NORTH GUALALA WATER COMPANY has 6 violations on record in total, 2 of thems health-based - ranking it 6,818th of 12,903 systems by violation count, the 47th percentile nationally.
Against the CA average
NORTH GUALALA WATER COMPANY's 2 health-based violations sit within the CA average of 5.8, across 803 systems statewide. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
NORTH GUALALA WATER COMPANY's most recent violation on record is dated 2019-01-01, with the most recent health-based one dated 2009-01-08. Last reported to EPA: 06/22/2026.
The concern categories on record
NORTH GUALALA WATER COMPANY'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 NORTH GUALALA WATER COMPANY's record does not cover
NORTH GUALALA WATER COMPANY'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 - 2 health-based violations on file for NORTH GUALALA WATER COMPANY - 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.