US plan for Colorado River could cut up to 40% supply for Arizona, California and Nevada

Proposal comes after seven states drawing water from drought-stricken river failed to come to an agreement

The US government has proposed a plan for the drought stricken Colorado River that could cut up to 40% of current supplies to Arizona, California and Nevada, as the waterway's reservoirs continue to plunge to critically low levels.

A top Arizona water official shared details of the Trump administration's plan at a state meeting on Wednesday.