What's in ONALASKA WSC's water?

ONALASKA WSC's only violations on record are reporting or monitoring lapses, not a contaminant or treatment-technique failure EPA classifies as health-based. Population served: 5,289, over 2,042 connections.

Ranked against every other system in this dataset

3 total violations and 0 health-based ones put ONALASKA WSC at the 9th percentile nationally for violation burden, rank 11,698 of 12,903.

How ONALASKA WSC compares within TX

TX's 1,633 covered systems average 6.7 health-based violations each; ONALASKA WSC carries 0, not 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 ONALASKA WSC is from 2025-01-07. Last reported to EPA: 06/26/2026.

What this data is and is not

ONALASKA WSC'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 ONALASKA WSC - 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.