About 95% of the more than 2,700 security alarms the Arcadia Police Department responded to last year turned out to be false alarms. Arcadia police Chief Bob Sanderson is asking the City Council to implement a $100 fine for a third false alarm issued in a 365-day period. A $200 fine for the fourth false alarm and $300 for the fifth and all subsequent false alarms would be part of the new ordinance that City Council will consider next month.