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Portsmouth Naval Yard Sediment Data (JOHNSTON94 shapefile)

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: May 05, 2026 at 10:12 PM | Dataset Last Updated: November 16, 2021 at 12:00 AM
The sediment data presented in this data layer were from an ecological study sited near the Portsmouth Naval Shipyard, Kittery, Maine. The analog data were originally converted into digital form for inclusion in a Gulf of Maine Contaminated Sediments Database.

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