Us Interior Department 32 C St Nw Ephrata, WA 98823 Phone : (509) 754-0200 Business Category Land Mineral Wildlife & Forest Conservation United States Government--interior Dept Of, Bureau Of Reclamation, Information 32 C St Nw Ephrata, WA 98823 Phone : (509) 754-0200 Business Category Government Offices-Federal Government Offices & Public Schools