Question 1

What is the EPA limit for chromium in drinking water?

Accepted Answer

The EPA Maximum Contaminant Level (MCL) for chromium is 0.1 ppm. Public water systems must keep chromium below this level.

Question 2

What are the health effects of chromium in drinking water?

Accepted Answer

The EPA MCL of 100 ppb covers total chromium, but the critical health distinction is between trivalent chromium (Cr-III, an essential nutrient) and hexavalent chromium (Cr-VI, a known carcinogen). Hexavalent chromium, the compound made famo

Question 3

Where does chromium in drinking water come from?

Accepted Answer

Chromium enters drinking water from both natural and industrial sources. Natural deposits of chromium-containing minerals (chromite) are found throughout the western US, particularly in California, Oregon, and Arizona. Industrial contaminat

Question 4

How do I remove chromium from my drinking water?

Accepted Answer

Chromium is effectively removed by: Reverse Osmosis, Ion Exchange, Activated Alumina. Look for NSF-certified filters that explicitly list chromium reduction.

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