Tap and WellTreasure Valley water, from the public record

Lithium in Boise water

4 systems serving Boise City detected Lithium in the last 36 months. At least one result is from EPA UCMR monitoring.

System36 mo maxLatestStatusLast sample
Meridian Water Department99.5ppb93.1ppbDetected2025-09-24
Garden City Water and Sewer System78.1ppbNDDetected2024-10-14
Veolia Water Idaho24.3ppbNDDetected2024-02-26
Capitol Water Corp.19.0ppb16.0ppbDetected2023-12-06
Lithium is not regulated. It was monitored under UCMR 5; EPA has not set a health advisory.Agency language as recorded in the contaminant reference. This site does not paraphrase health guidance.

Lithium in Treasure Valley drinking water. Boise City water quality.

Numbers are the system's samples at its taps and wells, not yours. Lead and copper are 90th percentiles from sampled homes. Well pages are nearby-sample estimates. Health text restates EPA and DEQ. Methodology.