Town Hall Address 1403 Old Mountain Rd S Joppa, MD 21085-3103 United States- Harford County Fire District (410) 679-1055 1403 Old Mountain RD S Joppa, MD 21085 United States Water (410) 638 - 3300 3334 Abingdon Road Abingdon, MD 21009 United States Sewer (410) 638-3300 1403 Old Mountain Rd S Joppa, MD 21085-3103 United States County Harford