Colorado girds for proliferating people and increasingly scarce water

Colorado is looking for 163 billion gallons of water, and a long-awaited state plan for finding it calls for increased conservation, reusing treated wastewater and diverting more water from the Western Slope.

The plan, ordered by Gov. John Hickenlooper to deal with a massive projected water shortfall, is about to be unveiled. Rising demand from population growth and industry, if continued through 2050, threatens to leave 2.5 million people parched.

But water suppliers east and west of the Continental Divide are clashing over details that the draft plan does not specify.

Those on the water-poor east side, where Colorado’s 5.3 million population is concentrated, prioritize diverting more western water under the mountains to sustain Front Range growth. Those on the west side oppose new diversions — and want this reflected in the plan.

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