💧 ZIP Water Report

City Of Mercedes

PWSID TX1080007 · Mercedes, Texas · serves 16,258 people · surface water source

D
Poor

PFAS test results (EPA UCMR 5)

ContaminantResultFederal limit (MCL)Sampled
PFHxA 3.3 ppt — 1/25/2023

ppt = parts per trillion (ng/L). Rows highlighted red meet or exceed the 2024 federal limit.

Violation history

DateViolationTypeHealth-basedStatus
2025-12-30 Lead and Copper Rule MR No Resolved
2025-05-01 Public Notice Other No Resolved
2024-10-17 LEAD AND COPPER RULE REVISIONS TT Yes Resolved
2024-10-17 LEAD AND COPPER RULE REVISIONS RPT No Resolved

ZIP codes served