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Index/Topics/DRASTIC Groundwater-Vulnerability Index

DRASTIC Groundwater-Vulnerability Index

The DRASTIC groundwater-vulnerability index is a method for estimating groundwater vulnerability by combining seven hydrogeologic parameters into a weighted score.

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Jan 17, 2026

What peer-reviewed critiques exist of DRASTIC’s major claims and methods?

Peer-reviewed literature contains a mixed appraisal of the DRASTIC groundwater-vulnerability index: reviewers praise its simplicity and adaptability but consistently flag methodological weaknesses—reg...