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Boundaries of EPA R6 NPL Sites as of 3/1/2023; EPA Region 6 Superfund, AR, LA, NM, OK, TX

Published by STS Systems Support | U.S. Environmental Protection Agency | Catalog Last Checked: May 06, 2026 at 12:53 AM | Dataset Last Updated: October 22, 2021 at 12:00 AM
This layer contains boundaries of EPA Region 6 Superfund NPL Sites as of 3/1/2023. The boundaries represent several types of features such as operable units, plumes, facilities, landfill caps, extent of contamination, and extent of study.

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