Home About UsMission & ContactLinks Links Upper Southampton Township American Water Works Association PA 1 Call H2ouse About Us Mission & Contact Links Upper Southampton Municipal Authority 945 Street Road Southampton, PA 18966 Mailing Address:Upper Southampton Municipal AuthorityP.O. Box 481Southampton, Pennsylvania 18966 Emergencies: (215) 364-1390 Phone: (215) 364-1390 Fax: (215) 364-9410 info@usauthorities.org View Contacts & Directory