Is SANTA MARGARITA WATER DISTRICT-ID9's water safe to drink?
SANTA MARGARITA WATER DISTRICT-ID9 has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 39,684 people through 11,013 service connections.
Ranked against every other system in this dataset
SANTA MARGARITA WATER DISTRICT-ID9 has 11 violations on record in total, 1 of them health-based - ranking it 8,139th of 12,903 systems by violation count, the 37th percentile nationally.
How SANTA MARGARITA WATER DISTRICT-ID9 compares within CA
Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - SANTA MARGARITA WATER DISTRICT-ID9's 1 is at or below that. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for SANTA MARGARITA WATER DISTRICT-ID9 is from 2022-01-10 (health-based: 1995-01-10). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
SANTA MARGARITA WATER DISTRICT-ID9'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
SANTA MARGARITA WATER DISTRICT-ID9'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 - 1 health-based violation on file for SANTA MARGARITA WATER DISTRICT-ID9 - 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.