What's in HAWTHORNE-CITY WATER DEPT.'s water?
HAWTHORNE-CITY WATER DEPT. has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 44,718 people through 6,202 service connections.
How this compares nationally
Out of 12,903 systems in this dataset, HAWTHORNE-CITY WATER DEPT. ranks 8,806th by violation burden (32th percentile) - 4 violations total, 1 health-based.
How HAWTHORNE-CITY WATER DEPT. compares within CA
HAWTHORNE-CITY WATER DEPT.'s 1 health-based violations sit within the CA average of 5.8, across 803 systems statewide. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for HAWTHORNE-CITY WATER DEPT. is from 2019-01-01 (health-based: 1997-01-05). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
HAWTHORNE-CITY WATER DEPT.'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
HAWTHORNE-CITY WATER DEPT.'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 HAWTHORNE-CITY WATER DEPT.'s customers' taps is household plumbing, invisible to a system-level record ranked 8,806th of 12,903 by violation count. The guide to what this data misses covers that gap.