City of Aberdeen Waste Water Treatment Plant Aberdeen, MD Contact Information 261 Michaels Ln , Aberdeen, MD, Maryland 21001 (410) 272-2650 http://www.harfordcountymd.gov Location Get Directions By car By public transit Walking Bicycling HoursPlease call for hours of operation. Automotive Antifreeze Motor Oil 1 2 3 4 50.000 Does this listing contain inaccurate information? If so please send us a correction. Your name Your email Subject Please describe what corrections need to be made to the listing.