Exhibit 4(iv) DOMINION SUBSIDIARY SAVINGS PLAN TRUST AGREEMENT Effective October 1, 1995 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ARTICLE I DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . 2 ARTICLE II ESTABLISHMENT...