In Region II, a work group composed of staff members with varied backgrounds, representing each of the divisions was created, and asked by the Regional Administrator to undertake the Risk Ranking Project. The work group proceeded to: (1) define the regional list of environment problems; (2) develop the criteria and methodologies for evaluating the problem areas; (3) collect data and analyze the risks; and, (4) complete a relative ranking of the problem areas on the basis of their health, ecological and welfare risks. On October 1, 1990, the work group presented its rankings and the rationale for its findings to the Regional Administrator and the region's senior managers. The work group's recommendations were unanimously adopted by the senior managers. The report includes the ecological ranking results, background on the ecological ranking criteria andmethodology, and the detailed ecological problem areas analyses on which the rankings are based.