Contracted to provide quantitative services in a complex hazardous waste litigation, the staff worked with the insured's counsel to develop and employ a decision tree analysis in conjunction with a number of standard allocation modeling runs, to value their settlement options. After factoring in the appropriate coverage discounts, the client was supplied with a working model in which they were able to change the probabilities of success/failure at their discretion. The result was a favorable settlement where the insured paid approximately 10% of their exposed limits, 75% less than originally demanded.