Exhibit 99.1 August 5, 1998 Securities and Exchange Commission Mail Stop 9-5 450 5th Street NW Washington, D.C. 20549 Dear Sirs/Madams: We have read and agree with the comments in Item 4 of Form 8-K of Regency Bancorp dated August 5, 1998, insofar as they relate to us. Yours truly, /s/DELOITTE & TOUCHE LLP Fresno, California