Rocky Mountain News
June 26, 2008, Burt Hubbard

State health officials Thursday testified that Colorado needs stronger rules and buffer zones to protect drinking water from oil and gas development, while energy companies countered the proposed regulations are unnecessary and will cost billions of dollars in undeveloped gas supplies....

http://www.rockymountainnews.com/news/2008/jun/26/health-officials-push-for-tighter-control-of-oil/