Is WEST VALLEY WATER DISTRICT's water safe to drink?
WEST VALLEY WATER DISTRICT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 104,498 people through 23,436 service connections.
Ranked against every other system in this dataset
Out of 12,903 systems in this dataset, WEST VALLEY WATER DISTRICT ranks 4,489th by violation burden (65th percentile) - 7 violations total, 4 health-baseds.
How WEST VALLEY WATER DISTRICT compares within CA
Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - WEST VALLEY WATER DISTRICT's 4 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 WEST VALLEY WATER DISTRICT is from 2013-01-01 (health-based: 1987-01-06). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
WEST VALLEY 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:
- Nitrate / nitrite - flagged from: Nitrate
The most severe category on record is nitrate / nitrite, which points toward a reverse osmosis-class filter if you want to address it directly.
What this data is and is not
WEST VALLEY 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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 7 logged violations can see. The guide to what this data misses covers that gap.