What's in WESTERN MWD's water?

WESTERN MWD has no violations on record in EPA's SDWIS data. 86,062 people get their water from it, across 22,297 connections.

Ranked against every other system in this dataset

WESTERN MWD has 0 violations on record in total, 0 of thems health-based - ranking it 12,586th of 12,903 systems by violation count, the 2th percentile nationally.

Against the CA average

CA's 803 covered systems average 5.8 health-based violations each; WESTERN MWD carries 0, not more than typical for the state. See the lead and copper guide for why lead counts differently.

What WESTERN MWD's record does not cover

This is what WESTERN MWD 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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 0 logged violations can see. The guide to what this data misses covers that gap.