Is BERWYN's water safe to drink?
BERWYN has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 57,250, over 13,496 connections.
BERWYN's record against the rest of the country
23 total violations and 3 health-based ones put BERWYN at the 61th percentile nationally for violation burden, rank 4,989 of 12,903.
How BERWYN compares within IL
Among the 560 IL systems in this dataset, the average is 5.0 health-based violations - BERWYN's 3 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 BERWYN is from 2026-01-01 (health-based: 2015-01-10). Last reported to EPA: 05/27/2026.
What kind of problem, specifically
BERWYN'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:
- Lead & copper - flagged from: Lead and Copper Rule
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What this data is and is not
This is what BERWYN 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. Between the utility's meter and BERWYN's customers' taps is household plumbing, invisible to a system-level record ranked 4,989th of 12,903 by violation count. The guide to what this data misses covers that gap.