Workers on a barge drill into the Portage Cove sea floor last week. They’re taking as many as 12 samples, each 60 to 100 feet into the ocean floor near the entrance of the harbor to test stability of soils. Firm soils are needed for construction of a traditional, rubble-mound breakwater. PND Engineers is overseeing the work, which will cost about $500,000. Andy Hedden photo.