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W A T E R I E N E R G Y I l I E E RIVERSIDE PUBLIC UTILITIES Board Memorandum P U B L I C U T T l I T T F $ BOARD OF PUBLIC UTILITIES DATE: March 19, 2010 ITEM NO: 5 SUBJECT: 2009 ANNUAL REPORT — ELECTRIC SYSTEM INSPECTION AND CORRECTIVE ACTION ISSUE: Pursuant to the California Public Utility Commission's requirement commonly referred to as GO 165,the City of Riverside Public Utilities (RPU) must submit to the Board of Public Utilities an annual report summarizing inspections made, condition of equipment observed and repairs made to the electric system. RECOMMENDATION: That the Board of Public Utilities receive and file the 2009 Annual Report of Electrical Facilities Inspection. BACKGROUND: The State of California Public Utilities Code requires the California Public Utilities Commission (CPUC) to adopt standards for the inspection, maintenance, repair and replacement of electric utility distribution facilities. Effective March 31, 1997,the CPUC adopted General Order No. 165 (GO 165)for investor owned utilities which established minimum inspection requirements for certain electric distribution facilities, including maximum allowable inspection cycle lengths, condition rating, record keeping, reporting on scheduling and performance of corrective action. Although the City is not subject to the jurisdiction of the CPUC, the City has followed the requirements of GO 165 in performing periodic inspections. RPU has always had inspection and maintenance programs for the electric system. Electric construction and maintenance personnel are trained to identify any unusual or abnormal conditions on the electric system and take appropriate corrective action. RPU's Inspection and Maintenance Program meets the requirements of GO 165, including a report of inspection results to the Board of Public Utilities. RPU's GO 165 program also includes the development of a Asset Management system. In 2009, Energy Delivery staff and contractors patrolled all of the distribution and transmission lines. The transmission system was patrolled from the air by Energy Delivery staff using the City's Police Department's helicopters. Contract crews also conducted a detailed infrared inspection of the transmission lines and equipment from the ground. Contract crews performed detailed inspections of 14,089 poles with their related overhead equipment. Contract crews also completed 3,732 intrusive inspections of wood poles. In all, staff and contractors performed 31,364 detailed inspections, and 321 corrective actions on facilities subject to RPU's standard of care. Detailed inspections of overhead equipment including: transformers, capacitors, regulators, reclosers and switches; determined that 5,022 out of 5,715 or 87.8%were rated good or very good and 57 transformers or 1.0% need to be replaced or repaired. Detailed inspections of transmission and distribution poles determined that 12,569 out of 14,089 poles or 89.2% were rated good or very good and 73 poles or 0.5% were determined to need replacement or to be reinforced. Detailed inspections also revealed that over 60.6% of poles inspected have GO-95 conditions requiring correction. Most of these conditions were rated as minor. Intrusive inspections of wood poles determined that 3,320 poles out of 3,732 or 89.0% passed inspection and 155 poles or 4.2% need to be replaced or reinforced. The remaining 257 poles or 6.9% require minor maintenance.