THIS UNILATERAL ADMINISTRATIVE ORDER DIRECTS THE RESPONDENTS TO PERFORM AN ENGINEERING EVALUATION/COST ANALYSIS FOR WATER QUALITY IN CONNECTION WITH THE FRENCH GULCH/WELLINGTON ORO MINE SITE LOCATED NEAR BRECKENRIDGE, COLORADO. THIS EE/CA WILL ASSESS SITE CONDITIONS AND EVALUATE ALTERNATIVES TO THE EXTENT NECESSARY FOR EPA TO SELECT A RESPONSE ACTION FOR THE MINE POOL AND SURFACE AND GROUNDWATER AT THE SITE.