I found your article on Las Vegas water consumption interesting and well-written ("The Vegas Paradox," HCN, 1/20/14). Clearly, the water department's water rates are not sufficient to incentivize conservation. Although it employs a four-tier rate system, its rates are less than half of Denver's, which also uses Colorado River water. You would think that since Nevada is already using more water than it is entitled to under the Colorado River Compact, the department would make water more expensive for the water wasters. Money talks!