On September 14, 1972 Region VIII of the Environmental Protection Agency (EPA), received a letter from the Colorado Department of Health requesting assistance concerning the operation of the Vail Wastewater Treatment Facility. An initial evaluation of the Vail plant was made on October 26 and 27, 1972. Various plant deficiencies were observed during the initial evaluation and recommendations were made to correct the observed problems. After the plant had been modified a formal technical assistance project was initiated on March 19, 1973. The first objective of the assistance project was to improve effluent quality from the Vail facility by initiating a series of operational control tests and analyses. In addition, those portions of the facility which hindered or limited successful operation were to be identified. This report summarizes the results and findings of the technical assistance project and proposes several recommendations for future consideration at the Vail plant.