A storage system is described that includes a controller and a disk array. Remediation includes treating a site contaminated with toxic organic compounds by assessing for the presence or absence of suitable ozonophilic bacteria at the site and introducing ozone to the site. The second edge of a prior shingle overlaps and is above the first edge of any immediately subsequent shingle. Together, the prostheses form a total facet replacement system. The controller receives the digital form of the power output and monitors the operation of the electrically powered device.