What's in SERRANO WATER DISTRICT's water?
SERRANO WATER DISTRICT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. 5,659 people get their water from it, across 2,346 connections.
SERRANO WATER DISTRICT's record against the rest of the country
SERRANO WATER DISTRICT has 3 violations on record in total, 1 of them health-based - ranking it 9,013th of 12,903 systems by violation count, the 30th percentile nationally.
Against the CA average
CA's 803 covered systems average 5.8 health-based violations each; SERRANO WATER DISTRICT carries 1, not more than typical for the state. The filter guide explains what a violation like this actually calls for.
Most recent violation on record
SERRANO WATER DISTRICT's most recent violation on record is dated 2004-01-01, with the most recent health-based one dated 2004-01-01. Last reported to EPA: 06/22/2026.
The concern categories on record
SERRANO WATER DISTRICT'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:
- Synthetic organic chemicals / pesticides / VOCs - flagged from: CARBON, TOTAL
The most severe category on record is synthetic organic chemicals / pesticides / vocs, which points toward a carbon-class filter if you want to address it directly.
What SERRANO WATER DISTRICT's record does not cover
SERRANO WATER DISTRICT'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. Between the utility's meter and SERRANO WATER DISTRICT's customers' taps is household plumbing, invisible to a system-level record ranked 9,013th of 12,903 by violation count. The guide to what this data misses covers that gap.