WILLOWBROOK WSD: EPA violation history, explained

WILLOWBROOK WSD has no violations on record in EPA's SDWIS data. Population served: 9,348, over 3,415 connections.

Ranked against every other system in this dataset

WILLOWBROOK WSD has 0 violations on record in total, 0 of thems health-based - ranking it 12,685th of 12,903 systems by violation count, the 2th percentile nationally.

How WILLOWBROOK WSD compares within CO

CO's 230 covered systems average 3.0 health-based violations each; WILLOWBROOK WSD 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

WILLOWBROOK WSD serves 9,348 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 this data is and is not

WILLOWBROOK WSD'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. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 0 logged violations can see. The guide to what this data misses covers that gap.