Twin Lakes Postal Outlet Full service postal outlet. Contact Info Phone: 519-542-4007 Fax: 519-542-9931 Location 1226 Murphy Road Sarnia, ON N7S 2Y0 View Map Mailing Address: 1226 Murphy Road, ON, P/T Employees: 3 F/T Employees: 4 Key Contact: Bob Guibert NAICS Code: 49111 - Postal service Site Selector Map: View location