Question 1

What is the EPA limit for lithium in drinking water?

Accepted Answer

The EPA has not set a federal MCL for lithium, though some states have their own limits and health-based screening levels.

Question 2

What are the health effects of lithium in drinking water?

Accepted Answer

Lithium is an emerging contaminant monitored under EPA's UCMR5 program. While lithium at therapeutic doses (300-600 mg/day) is a well-established psychiatric medication for bipolar disorder, its presence in drinking water at much lower conc

Question 3

Where does lithium in drinking water come from?

Accepted Answer

Lithium enters drinking water primarily from natural geological deposits. It is found in spodumene, petalite, and lepidolite minerals, with the highest concentrations in groundwater from regions with granitic and volcanic rock, pegmatite fo

Question 4

How do I remove lithium from my drinking water?

Accepted Answer

Lithium is effectively removed by: Reverse Osmosis, Ion Exchange, Distillation. Look for NSF-certified filters that explicitly list lithium reduction.

Lithium in Drinking Water - EPA MCL, Health Effects & Removal