Special Letter From the Managing Editor

Report on the DOE/PERF Vapor Pathway Workshop, January 27-28, 2004, Brea, CA
By Mary K. Donohue

Invited Editorial

Environmental Forensics: A Scientific Service at the Service of Justice and Society
By Josep Vives-Rego

Commentaries

Commentary on Nicholson et al. 2003. Elements Influencing Cost Allocation in the Pinal Creek Aquifer, Arizona, USA. Part II: Geochemical Controls on Groundwater Quality Recovery. Environ. Forensics 4(4):271–286
By Mark Logsdon

Response to Comment on Nicholson et al. 2003. Elements Influencing Cost Allocation in the Pinal Creek Aquifer, Arizona, USA. Part II: Geochemical Controls on Groundwater Quality Recovery. Environ. Forensics 4(4):271–286
By Andrew Nicholson, Andy Davis, and Steve Helgen

Contributed Papers

Changes in Water Table and Soil Radon Emanation
By Paul Merolla, Douglas Mose, and George Mushrush

Groundwater Pollution Source Identification and Simultaneous Parameter Estimation Using Pattern Matching by Artificial Neural Network
By Raj Singh and Bithin Datta

Detecting Anthropogenic Stress In An Ecosystem: 1. Meiofauna In A Sewage Gradient
By Elizabeth Hewitt and Stephen Mudge

Distinguishing PAH Background and MGP Residues in Sediments of a Freshwater Creek
By Helder Costa, Keith White, and John Ruspantini