Acknowledgment
The authors wish to recognize the leadership and contributions of the Interstate Technology & Regulatory Council (ITRC) Incremental Sampling Methodology Technical Team to the field of environmental sampling. Many of the ideas and concepts presented herein benefited from collegial discourse with our fellow ITRC Team members over the past several years; and Mark Malinowski of the California Department of Toxic Substances Control for his thoughtful review and suggestions on an early draft of the manuscript.