💧 ZIP Water Report

Howard County D.p.w. Distribution

PWSID MD0130002 · Columbia, Maryland · serves 286,158 people · surface water source

B
Good

PFAS test results (EPA UCMR 5)

ContaminantResultFederal limit (MCL)Sampled
PFPeA 3.6 ppt — 3/19/2024
PFHxA 3.4 ppt — 12/21/2023
PFPeA 3.3 ppt — 12/21/2023
PFPeA 3 ppt — 9/22/2023

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

Violation history

DateViolationTypeHealth-basedStatus
2022-07-01 Consumer Confidence Rule Other No Resolved

ZIP codes served