X0202 4 2006-07-31 0 0000766829 SJW CORP SJW 0001245335 YIP ANGELA 374 W. SANTA CLARA STREET SAN JOSE CA 95113 0 1 0 0 Chief Financial Officer Common Stock 2006-07-31 5 J 0 E 543 22.36 A 2891 D Shares acquired in a transaction exempt from Section 16(b) of the Securities Exchange Act under the SJW Corp. Employee Stock Purchase Plan. Includes 2,575 shares of Common Stock and 316 shares of deferred stock which may be subject in whole or in part to vesting schedules tied to the reporting person's continued service with the issuer and which will be distributed as actual shares of the issuer's common stock either at the time of vesting or at a specificed time thereafter (including termination of service with the issuer). /s/Angela Yip 2006-08-17