Install one 500 gallon propane tank between Residences 79 & 81 and one 300 gallon propane tank at Residence 82. Install underground propane piping from the tanks to the residences in trenches 18" deep by approximately 6" wide and 50' feet long. Tank and trench locations are to be determined by joint effort involving Facilities Management and Resources Management and Sciences staff. Tank color will be chosen to blend into the surrounding environment.