Is YARMOUTH WATER DEPARTMENT's water safe to drink?
YARMOUTH WATER DEPARTMENT has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. Population served: 38,900, over 16,360 connections.
How this compares nationally
Out of 12,903 systems in this dataset, YARMOUTH WATER DEPARTMENT ranks 2,666th by violation burden (79th percentile) - 32 violations total, 7 health-baseds.
How YARMOUTH WATER DEPARTMENT compares within MA
Among the 283 MA systems in this dataset, the average is 7.0 health-based violations - YARMOUTH WATER DEPARTMENT's 7 is above 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 YARMOUTH WATER DEPARTMENT is from 2021-06-04 (health-based: 2018-01-02). Last reported to EPA: 06/22/2026.
What kind of problem, specifically
YARMOUTH WATER DEPARTMENT'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
Everything on this page is YARMOUTH WATER DEPARTMENT's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Between the utility's meter and YARMOUTH WATER DEPARTMENT's customers' taps is household plumbing, invisible to a system-level record ranked 2,666th of 12,903 by violation count. The guide to what this data misses covers that gap.