What's in LAKE HEMET MWD's water?
LAKE HEMET MWD had a health-based violation within the last five years. The required corrective action was reported, but it happened recently enough to matter. 52,913 people get their water from it, across 14,439 connections.
How this compares nationally
Out of 12,903 systems in this dataset, LAKE HEMET MWD ranks 6,918th by violation burden (46th percentile) - 4 violations total, 2 health-baseds.
How LAKE HEMET MWD compares within CA
Among the 803 CA systems in this dataset, the average is 5.8 health-based violations - LAKE HEMET MWD's 2 is at or below that. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
The last violation EPA has on record for LAKE HEMET MWD is from 2022-01-07 (health-based: 2022-01-06). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
LAKE HEMET MWD'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); Revised Total Coliform 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 this data is and is not
LAKE HEMET MWD'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 LAKE HEMET MWD - 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.