SAN DIEGO – City Attorney Michael Aguirre said Monday he planned to post on his office's Web site the names of people and companies who owe the city money, in an attempt to prompt them to pay up. The city will mail notices to about 30,000 individuals, companies and government agencies that owe the city $250 or more in delinquent debt, giving them 30 days' notice of the potential posting. More than 560,000 debtors owe the city money, city officials said.