How to dialysis water to avoid water pollution

Drought-stricken California is on the brink of a major water crisis.

The state’s population is shrinking, and more people are going without water.

But California’s largest city, Los Angeles, is suffering.

The city’s water supply is being treated with a different kind of treatment than that used in most other cities, and some residents are still experiencing water contamination from it.CBS News’ Richard Quest reports from the city of Los Angeles.