Preface

Abstract

final document on the development of a list of soil screening numbers based on “protection of public health and safety ” as required by Health and Safety Code Section 57008 (OEHHA, 2005). The screening numbers have no regulatory authority and are published solely as reference values that may be used by citizen groups, community organizations, property owners, developers, and local government officials to determine sites that would likely need no further action if a full risk assessment were conducted. How these soil screening levels should be applied is explained i