ROSAMOND CSD: EPA violation history, explained
ROSAMOND CSD has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 17,711 people through 5,293 service connections.
How this compares nationally
11 total violations and 11 health-based ones put ROSAMOND CSD at the 86th percentile nationally for violation burden, rank 1,855 of 12,903.
How ROSAMOND CSD compares within CA
CA's 803 covered systems average 5.8 health-based violations each; ROSAMOND CSD carries 11, more than typical for the state. See the lead and copper guide for why lead counts differently.
Most recent violation on record
The last violation EPA has on record for ROSAMOND CSD is from 2008-01-10 (health-based: 2008-01-10). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
ROSAMOND CSD'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)
- Other regulated metals - flagged from: Arsenic
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
ROSAMOND CSD'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 ROSAMOND CSD's customers' taps is household plumbing, invisible to a system-level record ranked 1,855th of 12,903 by violation count. The guide to what this data misses covers that gap.