The Annapolis Harbormaster’s Office operates the pumpout boat DAHLGREN. This vessel is a hybrid, diesel-electric-solar, welded, aluminum boat. It is in service daily from March 16th to November 15th, and is available seven (7) days a week (please see our homepage for the announcement regarding service this winter). The vessel can be contacted on VHF 17 and via mobile at 410-320-6852. The charge is $5 per tank, up to 50 gallons. Anything beyond that is an additional $1 per tank for every 10 gallons. The boat begins service in Spa Creek, heads to Weems Creek, services Back Creek after noon, and then it returns to Spa Creek for the end of the service day.