What's in ECWA BOSTON's water?

ECWA BOSTON has no violations on record in EPA's SDWIS data. 7,250 people get their water from it, across 3,058 connections.

ECWA BOSTON's record against the rest of the country

ECWA BOSTON has 0 violations on record in total, 0 of thems health-based - ranking it 12,703th of 12,903 systems by violation count, the 2th percentile nationally.

Against the NY average

NY's 443 covered systems average 4.1 health-based violations each; ECWA BOSTON carries 0, not more than typical for the state. The filter guide explains what a violation like this actually calls for.

Why "no violations" needs a caveat here

ECWA BOSTON serves 7,250 people. EPA requires smaller systems to test less often than large ones, so a clean record here is real but weaker evidence than the same record on a system serving hundreds of thousands - fewer tests means fewer chances to catch a problem. See the guide to reading a clean record for what that does and does not tell you.

What ECWA BOSTON's record does not cover

ECWA BOSTON'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 - 0 health-based violations on file for ECWA BOSTON - 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.