Inventorying Potential Sources of Drinking Water Contamination

This publication provides guidance for the public water supply operators and local wellhead protection planning team members who will guide the completion of the contaminant source inventory. It explains the process of identifying regulated and unregulated, present and past, potential contaminant sources within the wellhead protection area. It assumes that your wellhead protection planning team has defined and mapped your wellhead protection area using an appropriate delineation method.