The purpose of this special report is both to inform & advise. It assesses the current & likely future groundwater quality problems, both natural & anthropogenic, in the region & identifies the principal threats to the security of the valuable resource. It provides an overview of the major groundwater concerns of the Asia/Pacific region. It is hoped that this valuable report will promote the development of concrete actions for the protection & restoration of critical groundwater reserves in the region as well as drawing increased attention to the value & vulnerability of the resources.