Phase 1 - Risk assessment
Phase 2 - Risk management

The ranking took place during Phase 1. In the first part of this phase, four Technical Work Groups (Air, Land, Water, and Natural Resources) ranked a list of 31 environmental issues based upon the criteria of Human Health Risk, Ecologic Damages, and Economic/Welfare Damages. In the final part of Phase 1, members of the four Technical Work Groups formed the Integrated Ranking Subcommittee and constructed rankings for each of the three criteria and a final integrated list.

All of the above stakeholders groups had representatives on at least one of the Technical Work Groups or Integrated Ranking Subcommittee. The General Public were provided the opportunity to participate at one of two environmental summits coordinated by the Citizen Advisory Committee during Phase 2.

Colorado Environment 2000 Technical Work Groups. Colorado Environment 2000: Environmental Status Report. Environmental Assessment Program, Office of Environment, Colorado Department of Public Health and Environment. October 1989.

Colorado Environment 2000 Technical Work Groups. Technical Work Groups Ranking Reports & Analysis of Issues Final Draft.Environmental Assessment Program, Office of Environment, Colorado Department of Public Health and Environment. August 1989.
http://www.epa.gov/opperspd/futures/nogopher/risk/crexamples/examples/Colorado/index.html