Marketing in the Rockies

Marketing is not just for Oreos and Budweiser. Good communication is necessary for non-profits, community groups and governments as well. To save water, a city in Colorado launched an awareness campaign as explained in the Denver Post:

"For example, in 2002 during the peak of the drought, the city of Fort Collins spent $150,000 marketing water conservation. Citizens responded by conserving 3,000 acre-feet of water, 10 percent of annual use. Thus, it cost $50 per acre-foot to save that 3,000 acre-feet of water. Put in context, the new dams will cost between $800 and $2,000 per acre-foot, and buying water on the open market will cost between $5,000 and $15,000 per acre-foot. "

How much is that per bottle?